ddidderr/ghostty-rs
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feat(termio): port pty, child command spawning, shell integration

Browse Source 
Ports the parts of Ghostty's IO layer that don't depend on the terminal:
- pty.zig: pty pair, window size, mode, child-side setsid/TIOCSCTTY;
  master is CLOEXEC with IUTF8 set
- Command.zig: fork/execvpe with Ghostty's exact child setup (stdio
  dup2, best-effort chdir, rlimit restore, os/runtime pre-exec hooks,
  cgroup handling) and exit status decoding
- shell_integration.zig for bash/zsh/fish/elvish/nushell plus feature
  flags; scripts copied verbatim to resources/shell-integration/
- terminfo generator for xterm-ghostty, byte-identical to Zig's encode
  output (golden file produced with the real Zig code)

This crate opts into unsafe_code = "deny" (fork/exec need it) with
allow + SAFETY comments on minimal items.

Integration left: config-derived option types are local stand-ins;
cgroup D-Bus scope creation is a closure hook; Exec/Termio/Thread/
stream_handler wait for ghostty-terminal. Pty now closes both fds on
drop (Zig never auto-closed the slave) - to re-check when wiring Exec.

Test Plan:
- cargo test -p ghostty-termio (52 tests, incl. real pty spawn test
  expecting "hi\r\n31 97\r\n" from `echo hi; stty size`)
This commit is contained in:
ddidderr committed 2026-10-11 22:06:51 +02:00
1 parent 668c236291
commit 09cbe3bc97
21 files changed
+7120 -28
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checksum = "5b3dc8af474f516a851ff4bd12db780f948b9250ad37211e4eec0bccea54e01b"
[[package]]
name = "stacker"
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "707f49d46706bacf8a2b00d51dace3f9de527c13eec3778f570c411f89e69967"
dependencies = [
"cc",
"cfg-if",
"libc",
"psm",
"windows-sys",
]
[[package]]
name = "static_assertions"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
name = "strsim"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "strum"
version = "0.28.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9628de9b8791db39ceda2b119bbe13134770b56c138ec1d3af810d045c04f9bd"
dependencies = [
"strum_macros",
]
[[package]]
name = "strum_macros"
version = "0.28.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ab85eea0270ee17587ed4156089e10b9e6880ee688791d45a905f5b1ca36f664"
dependencies = [
"heck",
"proc-macro2",
"quote",
"syn 2.0.119",
]
[[package]]
name = "syn"
version = "1.0.109"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"proc-macro2",
"quote",
"unicode-ident",
]
[[package]]
name = "syn"
version = "2.0.119"
@@ -1313,19 +2236,115 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
dependencies = [
"fastrand",
"getrandom",
"getrandom 0.4.3",
"once_cell",
"rustix",
"windows-sys",
]
[[package]]
name = "termina"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9048a889effe34a5cddee0af7f53285198b16dca3be510858d38dfdb3e62a04e"
dependencies = [
"bitflags 2.13.2",
"parking_lot",
"rustix",
"signal-hook",
"windows-sys",
]
[[package]]
name = "terminfo"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d4ea810f0692f9f51b382fff5893887bb4580f5fa246fde546e0b13e7fcee662"
dependencies = [
"fnv",
"nom",
"phf",
"phf_codegen",
]
[[package]]
name = "termios"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "411c5bf740737c7918b8b1fe232dca4dc9f8e754b8ad5e20966814001ed0ac6b"
dependencies = [
"libc",
]
[[package]]
name = "termwiz"
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"base64 0.22.1",
"bitflags 2.13.2",
"fancy-regex",
"filedescriptor",
"finl_unicode",
"fixedbitset",
"hex",
"lazy_static",
"libc",
"log",
"memmem",
"nix 0.29.0",
"num-derive",
"num-traits",
"ordered-float",
"pest",
"pest_derive",
"phf",
"sha2",
"signal-hook",
"siphasher",
"terminfo",
"termios",
"thiserror 1.0.69",
"ucd-trie",
"unicode-segmentation",
"vtparse",
"wezterm-bidi",
"wezterm-blob-leases",
"wezterm-color-types",
"wezterm-dynamic",
"wezterm-input-types",
"winapi",
]
[[package]]
name = "thiserror"
version = "1.0.69"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
dependencies = [
"thiserror-impl 1.0.69",
]
[[package]]
name = "thiserror"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"thiserror-impl",
"thiserror-impl 2.0.21",
]
[[package]]
name = "thiserror-impl"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"proc-macro2",
"quote",
"syn 2.0.119",
]
[[package]]
@@ -1339,6 +2358,27 @@ dependencies = [
"syn 3.0.8",
]
[[package]]
name = "time"
version = "0.3.55"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdb87b95ec50ddfa440816d227a17b2ccbdda963a316a727fda0fc4334f7d134"
dependencies = [
"deranged",
"libc",
"num-conv",
"num_threads",
"powerfmt",
"serde_core",
"time-core",
]
[[package]]
name = "time-core"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e1c906769ad99c88eaa54e728060edef082f8e358ff32030cb7c7d315e81109"
[[package]]
name = "tiny-skia"
version = "0.12.0"
@@ -1426,6 +2466,18 @@ dependencies = [
"once_cell",
]
[[package]]
name = "typenum"
version = "1.20.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20"
[[package]]
name = "ucd-trie"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "uds_windows"
version = "1.2.1"
@@ -1443,18 +2495,49 @@ version = "1.0.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d245f478577f809a851594d02313b640fb437e0bb33866753cff937863096954"
[[package]]
name = "unicode-segmentation"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "unicode-truncate"
version = "2.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"itertools 0.14.0",
"unicode-segmentation",
"unicode-width",
]
[[package]]
name = "unicode-width"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
[[package]]
name = "unicode-xid"
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name = "utf8parse"
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[[package]]
name = "uuid"
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dependencies = [
"atomic",
"getrandom 0.4.3",
"js-sys",
"serde_core",
"wasm-bindgen",
@@ -1466,6 +2549,36 @@ version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
[[package]]
name = "version_check"
version = "0.9.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "vtparse"
version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6d9b2acfb050df409c972a37d3b8e08cdea3bddb0c09db9d53137e504cfabed0"
dependencies = [
"utf8parse",
]
[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
[[package]]
name = "wasip2"
version = "1.0.4+wasi-0.2.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"wit-bindgen",
]
[[package]]
name = "wasm-bindgen"
version = "0.2.129"
@@ -1511,6 +2624,78 @@ dependencies = [
"unicode-ident",
]
[[package]]
name = "wezterm-bidi"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0c0a6e355560527dd2d1cf7890652f4f09bb3433b6aadade4c9b5ed76de5f3ec"
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]
[[package]]
name = "wezterm-blob-leases"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"getrandom 0.3.4",
"mac_address",
"sha2",
"thiserror 1.0.69",
"uuid",
]
[[package]]
name = "wezterm-color-types"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"deltae",
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"wezterm-dynamic",
]
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name = "wezterm-dynamic"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"log",
"ordered-float",
"strsim",
"thiserror 1.0.69",
"wezterm-dynamic-derive",
]
[[package]]
name = "wezterm-dynamic-derive"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "46c0cf2d539c645b448eaffec9ec494b8b19bd5077d9e58cb1ae7efece8d575b"
dependencies = [
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"quote",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"bitflags 1.3.2",
"euclid",
"lazy_static",
"serde",
"wezterm-dynamic",
]
[[package]]
name = "winapi"
version = "0.3.9"
@@ -1661,6 +2846,12 @@ dependencies = [
"memchr",
]
[[package]]
name = "wit-bindgen"
version = "0.57.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "yeslogic-fontconfig-sys"
version = "6.0.1"
crates/ghostty-termio/Cargo.toml
+46 -4
View File
@@ -4,10 +4,52 @@ version.workspace = true
edition.workspace = true
license.workspace = true
# NOTE: the `ghostty-config` and `ghostty-terminal` dependencies were removed
# for now (config is being written concurrently, terminal is in progress).
# TODO(integration): re-add them when Exec/Termio/stream_handler are ported and
# replace the local stand-ins (shell_integration::{Command, ShellIntegrationFeatures},
# command::{LinuxCgroup, GtkSingleInstance}).
[dependencies]
ghostty-config.workspace = true
ghostty-terminal.workspace = true
ghostty-os.workspace = true
libc = "0.2.190"
log = "0.4.34"
nix = { version = "0.31.3", features = ["signal"] }
rustix = { version = "1.1.5", features = ["fs", "process", "pty", "termios", "stdio"] }
thiserror = "2.0.21"
[lints]
workspace = true
# Termio forks/execs children and sets up ptys; unsafe is denied by default
# and only allowed on minimal, SAFETY-commented items.
[lints.rust]
unsafe_code = "deny"
[lints.clippy]
pedantic = { level = "warn", priority = -1 }
todo = "warn"
unwrap_used = "warn"
# Porting a low-level terminal emulator involves a lot of intentional
# numeric casts and long state-machine functions; these pedantic lints are
# noise for this codebase.
cast_possible_truncation = "allow"
cast_possible_wrap = "allow"
cast_sign_loss = "allow"
cast_precision_loss = "allow"
cast_lossless = "allow"
module_name_repetitions = "allow"
too_many_lines = "allow"
missing_errors_doc = "allow"
missing_panics_doc = "allow"
similar_names = "allow"
struct_excessive_bools = "allow"
fn_params_excessive_bools = "allow"
match_same_arms = "allow"
unreadable_literal = "allow"
many_single_char_names = "allow"
doc_markdown = "allow"
must_use_candidate = "allow"
return_self_not_must_use = "allow"
used_underscore_binding = "allow"
large_stack_arrays = "allow"
inline_always = "allow"
[dev-dependencies]
temp-env = "0.3.6"
crates/ghostty-termio/src/command.rs
+872
View File
@@ -0,0 +1,872 @@
//! Command launches sub-processes. This is an alternate implementation to
//! `std::process::Command` (mirroring why the Zig one exists) since we need
//! precise control over what happens between fork and exec (e.g. attaching
//! a shell to a pty, cgroup transitions, best-effort chdir).
//!
//! Port of `Command.zig` (POSIX/Linux only) plus the Linux cgroup pre-exec /
//! post-fork logic from `apprt/gtk/{pre_exec,post_fork}.zig`.
//!
//! Safety: the child side of [`Command::start`] runs between `fork` and `exec`
//! in a possibly multithreaded process. All allocation is done before the
//! fork; the child only performs raw syscalls plus the user supplied
//! `os_pre_exec` / `rt_pre_exec` hooks (which must therefore be
//! async-signal-safe, like their Zig counterparts are expected to be).
use std::{
collections::HashMap,
ffi::{CString, NulError, c_char},
os::fd::OwnedFd,
panic::{AssertUnwindSafe, catch_unwind},
time::{Duration, Instant},
};
use ghostty_os::file::Rlimit;
use rustix::{
io::Errno,
process::{self, WaitOptions},
stdio,
};
/// Function executed /in the child process/ after the fork, but before
/// exec'ing the command. If the function returns `Some(code)`, the child
/// process will be exited with that exit code.
///
/// Must be async-signal-safe (see module docs).
pub type PreExecFn = Box<dyn Fn() -> Option<u8> + Send + Sync>;
/// Allowable set of errors that can be returned by a post fork function. Any
/// errors will result in the failure to create the surface.
#[derive(Debug, Clone, Copy, PartialEq, Eq, thiserror::Error)]
#[error("post fork hook failed")]
pub struct PostForkError;
/// Function executed /in the parent process/ after the fork. It receives the
/// command (the pid is already set).
pub type PostForkFn = Box<dyn Fn(&Command) -> Result<(), PostForkError> + Send + Sync>;
/// Errors from [`Command::start`] (all happen in the parent; the child never
/// returns from `start`, it either execs or exits like Zig's
/// `ExecFailedInChild` handling).
#[derive(Debug, thiserror::Error)]
pub enum StartError {
#[error("argument or environment contains an interior NUL byte")]
InvalidArgument(#[from] NulError),
#[error("fork failed: {0}")]
Fork(Errno),
#[error(transparent)]
PostFork(#[from] PostForkError),
}
/// The various methods a process may exit.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Exit {
/// Exited by normal exit call, value is exit status
Exited(u8),
/// Exited by a signal, value is the signal
Signal(u32),
/// Exited by a stop signal, value is signal
Stopped(u32),
/// Unknown exit reason, value is the status from waitpid
Unknown(u32),
}
impl Exit {
/// Decode a raw `waitpid` status (`W.IFEXITED` etc).
pub fn init(status: u32) -> Exit {
let low = status & 0x7f;
if low == 0 {
Exit::Exited(((status >> 8) & 0xff) as u8)
} else if (((low + 1) as u8 as i8) >> 1) > 0 {
Exit::Signal(low)
} else if (status & 0xff) == 0x7f {
Exit::Stopped((status >> 8) & 0xff)
} else {
Exit::Unknown(status)
}
}
}
/// Mirrors `config.Command`'s relevant enum `LinuxCgroup`.
/// TODO(integration): replace with the ghostty-config type.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub enum LinuxCgroup {
Never,
Always,
#[default]
SingleInstance,
}
/// TODO(integration): replace with the ghostty-config type.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub enum GtkSingleInstance {
False,
True,
#[default]
Detect,
}
/// Configuration information needed by the apprt pre exec function
/// (`apprt/gtk/pre_exec.zig` `PreExecInfo`). Trivially copyable.
/// TODO(integration): build from `ghostty-config::Config` (`init(cfg)`).
#[derive(Debug, Clone, Copy, Default)]
pub struct RtPreExecInfo {
pub gtk_single_instance: GtkSingleInstance,
pub linux_cgroup: LinuxCgroup,
pub linux_cgroup_hard_fail: bool,
}
/// Configuration information needed by the apprt post fork function
/// (`apprt/gtk/post_fork.zig` `PostForkInfo`).
/// TODO(integration): build from `ghostty-config::Config` (`init(cfg)`).
#[derive(Debug, Clone, Copy, Default)]
pub struct RtPostForkInfo {
pub gtk_single_instance: GtkSingleInstance,
pub linux_cgroup: LinuxCgroup,
pub linux_cgroup_hard_fail: bool,
pub linux_cgroup_memory_limit: Option<u64>,
pub linux_cgroup_processes_limit: Option<u64>,
}
/// A command to launch.
#[derive(Default)]
pub struct Command {
/// Path to the command to run. This doesn't have to be an absolute path,
/// because we use exec functions that search the PATH, if necessary.
pub path: String,
/// Command-line arguments. It is the responsibility of the caller to set
/// args[0] to the command. If args is empty then args[0] will
/// automatically be set to equal path.
pub args: Vec<String>,
/// Environment variables for the child process. If this is `None`,
/// inherits the environment variables from this process. These are the
/// exact environment variables to set; these are /not/ merged.
pub env: Option<HashMap<String, String>>,
/// Working directory to change to in the child process. If not set, the
/// working directory of the calling process is preserved. Failure to
/// change directory is ignored (as in Ghostty).
pub cwd: Option<String>,
/// The file handle to set for stdin/out/err. If this isn't set, we do
/// nothing explicitly so it is up to the behavior of the operating system.
/// (The fds are duplicated onto 0/1/2 in the child; the caller keeps its
/// own handles by passing `try_clone()`d fds.)
pub stdin: Option<OwnedFd>,
pub stdout: Option<OwnedFd>,
pub stderr: Option<OwnedFd>,
/// Rlimits to restore in the child (Ghostty raises RLIMIT_NOFILE at
/// startup; replaces `global_state.rlimits.restore()`).
/// TODO(integration): fill from the global state.
pub restore_rlimit: Option<Rlimit>,
/// Executed /in the child process/ after fork but before exec. Useful to
/// setup some state in the child before the exec process takes over, such
/// as signal handlers, setsid, setuid, etc.
pub os_pre_exec: Option<PreExecFn>,
/// Same as `os_pre_exec` but runs afterwards and is meant for the apprt
/// (e.g. [`linux_cgroup_pre_exec`]).
pub rt_pre_exec: Option<PreExecFn>,
/// Executed /in the parent process/ after the fork.
pub rt_post_fork: Option<PostForkFn>,
/// Process ID is set after start is called.
pub pid: Option<i32>,
}
impl std::fmt::Debug for Command {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("Command")
.field("path", &self.path)
.field("args", &self.args)
.field("cwd", &self.cwd)
.field("pid", &self.pid)
.finish_non_exhaustive()
}
}
/// Everything that must be allocated before forking.
struct Prepared {
path: CString,
argv: Vec<CString>,
envp: Vec<CString>,
}
impl Command {
pub fn new(path: impl Into<String>, args: &[&str]) -> Self {
Self {
path: path.into(),
args: args.iter().map(|s| (*s).to_owned()).collect(),
..Self::default()
}
}
fn prepare(&self) -> Result<Prepared, NulError> {
let path = CString::new(self.path.as_str())?;
let argv = if self.args.is_empty() {
vec![path.clone()]
} else {
self.args
.iter()
.map(|a| CString::new(a.as_str()))
.collect::<Result<_, _>>()?
};
let envp = match &self.env {
Some(map) => map
.iter()
.map(|(k, v)| CString::new(format!("{k}={v}")))
.collect::<Result<_, _>>()?,
// Inherit: snapshot our environment before the fork (nothing may
// allocate in the child).
None => std::env::vars_os()
.map(|(k, v)| {
let mut b = k.into_encoded_bytes();
b.push(b'=');
b.extend_from_slice(v.as_encoded_bytes());
CString::new(b)
})
.collect::<Result<_, _>>()?,
};
Ok(Prepared { path, argv, envp })
}
/// Start the subprocess. This returns immediately once the child is
/// started.
///
/// After this is successful, `self.pid` is available.
pub fn start(&mut self) -> Result<(), StartError> {
// IMPORTANT: do all allocation prior to the fork().
let prep = self.prepare()?;
let cwd = self.cwd.as_deref().and_then(|c| CString::new(c).ok());
let mut argv_ptrs: Vec<*const c_char> = prep.argv.iter().map(|c| c.as_ptr()).collect();
argv_ptrs.push(std::ptr::null());
let mut envp_ptrs: Vec<*const c_char> = prep.envp.iter().map(|c| c.as_ptr()).collect();
envp_ptrs.push(std::ptr::null());
let pid = fork().map_err(StartError::Fork)?;
if pid != 0 {
// Parent, return immediately.
self.pid = Some(pid);
if let Some(f) = &self.rt_post_fork {
f(self)?;
}
return Ok(());
}
// We are the child. This never returns.
self.run_child(&prep, &argv_ptrs, &envp_ptrs, cwd.as_deref())
}
/// The child side of `start`: set up fds, chdir, rlimits, hooks, exec.
fn run_child(
&self,
prep: &Prepared,
argv: &[*const c_char],
envp: &[*const c_char],
cwd: Option<&std::ffi::CStr>,
) -> ! {
// Setup our file descriptors for std streams. Any failure here is
// equivalent to Zig's `ExecFailedInChild` -> the child exits 1.
if let Some(fd) = &self.stdin
&& setup_fd(|f| stdio::dup2_stdin(f), fd).is_err()
{
exit_immediately(1);
}
if let Some(fd) = &self.stdout
&& setup_fd(|f| stdio::dup2_stdout(f), fd).is_err()
{
exit_immediately(1);
}
if let Some(fd) = &self.stderr
&& setup_fd(|f| stdio::dup2_stderr(f), fd).is_err()
{
exit_immediately(1);
}
// Setup our working directory. This can fail if we don't have
// permission to go to this directory or if due to race conditions it
// doesn't exist or any various other reasons. We don't want to crash
// the entire process if this fails so we ignore it. We don't log
// because that'll show up in the output.
if let Some(cwd) = cwd {
let _ = process::chdir(cwd);
}
// Restore any rlimits that were set by Ghostty. This might fail but
// any failures are ignored (its best effort).
if let Some(lim) = self.restore_rlimit {
ghostty_os::restore_max_files(lim);
}
// If there are pre exec callbacks, call them now.
for hook in [&self.os_pre_exec, &self.rt_pre_exec].into_iter().flatten() {
match catch_unwind(AssertUnwindSafe(hook)) {
Ok(Some(code)) => exit_immediately(code),
Ok(None) => {}
Err(_) => exit_immediately(1),
}
}
// Finally, replace our process.
// Note: we must use the "p"-variant of exec here because we do not
// guarantee our command is looked up already in the path.
let err = execvpe(prep, argv, envp);
// If we are executing this code, the exec failed. We're in the child
// process so there isn't much we can do. We try to output something
// reasonable, then exit (Zig returns ExecFailedInChild which the
// caller turns into exit(1)).
if err == Errno::NOENT {
write_stderr(
b"Requested executable not found. Please verify the command is on\n\
the PATH and try again.\n",
);
} else {
let mut buf = [0u8; 96];
let mut n = 0;
let prefix = b"exec syscall failed with unexpected error: errno=";
buf[..prefix.len()].copy_from_slice(prefix);
n += prefix.len();
n += format_u32(err.raw_os_error() as u32, &mut buf[n..]);
buf[n] = b'\n';
n += 1;
write_stderr(&buf[..n]);
}
exit_immediately(1)
}
/// Wait for the command to exit and return information about how it
/// exited. With `block == false` this still loops until the child has a
/// status to report (see the comment in the body).
pub fn wait(&self, block: bool) -> Result<Exit, Errno> {
let raw = self.pid.expect("wait called before start");
// SAFETY of unwrap-free construction: pids are nonzero after fork.
let pid = process::Pid::from_raw(raw).ok_or(Errno::SRCH)?;
let opts = if block {
WaitOptions::empty()
} else {
// We specify NOHANG because its not our fault if the process we
// launch for the tty doesn't properly waitpid its children. We
// don't want to hang the terminal over it. When NOHANG is
// specified, waitpid returns "nothing" if the process doesn't
// have a status to report. When that happens, it is as though the
// wait call has not been performed, so we need to keep trying
// until we get a status, otherwise we end up with zombie
// processes.
WaitOptions::NOHANG
};
loop {
match process::waitpid(Some(pid), opts) {
Ok(Some((_pid, status))) => return Ok(Exit::init(status.as_raw() as u32)),
Ok(None) => std::thread::yield_now(),
Err(Errno::INTR) => {}
Err(e) => return Err(e),
}
}
}
}
fn setup_fd(dup: impl Fn(&OwnedFd) -> rustix::io::Result<()>, src: &OwnedFd) -> Result<(), Errno> {
// dup2 (like Zig's dup3 with flags=0) leaves the target without
// CLOEXEC: we do NOT want this file descriptor to be closed on exec.
loop {
match dup(src) {
Err(Errno::INTR) => {}
r => return r,
}
}
}
/// Exit the current (forked child) process immediately without running
/// destructors or atexit handlers (`_exit`). Use this from `os_pre_exec` /
/// `rt_pre_exec` hooks instead of `std::process::exit`.
#[allow(unsafe_code)]
pub fn exit_immediately(code: u8) -> ! {
// SAFETY: _exit is async-signal-safe and has no preconditions.
unsafe { libc::_exit(i32::from(code)) }
}
#[allow(unsafe_code)]
fn fork() -> Result<i32, Errno> {
// SAFETY: the child branch (in `Command::start`) only performs
// async-signal-safe operations on memory allocated before the fork and
// then execs or `_exit`s; it never returns into Rust code that could
// allocate or take locks.
let pid = unsafe { libc::fork() };
if pid < 0 {
Err(Errno::from_raw_os_error(
std::io::Error::last_os_error().raw_os_error().unwrap_or(0),
))
} else {
Ok(pid)
}
}
#[allow(unsafe_code)]
fn execvpe(prep: &Prepared, argv: &[*const c_char], envp: &[*const c_char]) -> Errno {
debug_assert!(argv.last().is_some_and(|p| p.is_null()));
debug_assert!(envp.last().is_some_and(|p| p.is_null()));
// SAFETY: path is a valid NUL-terminated string; argv/envp are
// NULL-terminated arrays of pointers into CStrings (owned by `prep`) that
// outlive the call. execvpe only returns on failure.
unsafe {
libc::execvpe(prep.path.as_ptr(), argv.as_ptr(), envp.as_ptr());
}
Errno::from_raw_os_error(errno_now())
}
#[allow(unsafe_code)]
fn errno_now() -> i32 {
// SAFETY: __errno_location returns a valid thread-local pointer.
unsafe { *libc::__errno_location() }
}
fn write_stderr(msg: &[u8]) {
// Best effort, no allocation.
let _ = rustix::io::write(borrow_stderr(), msg);
}
#[allow(unsafe_code)]
fn borrow_stderr() -> rustix::fd::BorrowedFd<'static> {
// SAFETY: STDERR_FILENO is valid for the life of the process (or the
// write simply fails with EBADF).
unsafe { rustix::fd::BorrowedFd::borrow_raw(libc::STDERR_FILENO) }
}
/// Format `v` in decimal into `out`, returning the number of bytes written.
fn format_u32(mut v: u32, out: &mut [u8]) -> usize {
let mut tmp = [0u8; 10];
let mut i = tmp.len();
loop {
i -= 1;
tmp[i] = b'0' + (v % 10) as u8;
v /= 10;
if v == 0 {
break;
}
}
let n = tmp.len() - i;
out[..n].copy_from_slice(&tmp[i..]);
n
}
// ---------------------------------------------------------------------------
// Linux cgroup transitions (apprt/gtk/pre_exec.zig, post_fork.zig, cgroup.zig)
// ---------------------------------------------------------------------------
/// The name of the transient systemd scope for the given child pid
/// (`apprt/gtk/cgroup.zig` `fmtScope`).
pub fn fmt_scope(pid: u32) -> String {
format!("app-ghostty-surface-transient-{pid}.scope")
}
/// Wait for the current process' cgroup to end in `expected`. Returns true if
/// seen, false on timeout (250ms).
fn wait_for_cgroup(pid: u32, expected: &str) -> bool {
let start = Instant::now();
loop {
if start.elapsed() > Duration::from_millis(250) {
return false;
}
if let Some(raw) = ghostty_os::cgroup::current(pid)
&& let Some(idx) = raw.rfind('/')
&& &raw[idx + 1..] == expected
{
return true;
}
std::thread::sleep(Duration::from_millis(25));
}
}
/// If we are expecting to be moved to a transient systemd scope, wait to see
/// if that happens by checking for the correct name of the current cgroup.
/// Wait at most 250ms so that we don't overly delay the soft-fail scenario.
///
/// If we are configured to hard fail, log an error message and return an
/// exit code if we don't detect the move in time.
///
/// Intended as an `rt_pre_exec` hook (runs in the child; note that, like the
/// Zig code, it allocates and sleeps).
pub fn linux_cgroup_pre_exec(info: &RtPreExecInfo) -> Option<u8> {
match info.linux_cgroup {
LinuxCgroup::Always => {}
LinuxCgroup::Never => return None,
LinuxCgroup::SingleInstance => match info.gtk_single_instance {
GtkSingleInstance::True => {}
GtkSingleInstance::False => return None,
GtkSingleInstance::Detect => {
log::error!("gtk-single-instance is set to detect");
return Some(127);
}
},
}
let pid = process::getpid().as_raw_nonzero().get() as u32;
let expected = fmt_scope(pid);
if !wait_for_cgroup(pid, &expected) && info.linux_cgroup_hard_fail {
log::error!("transition to new transient systemd scope took too long");
return Some(127);
}
None
}
/// If we are configured to do so, tell `systemd` to move the new child PID
/// into a transient `systemd` scope with the configured resource limits.
///
/// `create_scope(pid, memory_high, tasks_max)` performs the D-Bus call
/// (`cgroup.createScope`); it returns `None` if there is no D-Bus connection
/// and `Some(Err(msg))` on failure.
/// TODO(integration): wire to the apprt-gtk D-Bus connection.
pub fn linux_cgroup_post_fork(
cmd: &Command,
info: &RtPostForkInfo,
create_scope: impl FnOnce(u32, Option<u64>, Option<u64>) -> Option<Result<(), String>>,
) -> Result<(), PostForkError> {
match info.linux_cgroup {
LinuxCgroup::Always => {}
LinuxCgroup::Never => return Ok(()),
LinuxCgroup::SingleInstance => match info.gtk_single_instance {
GtkSingleInstance::True => {}
GtkSingleInstance::False => return Ok(()),
GtkSingleInstance::Detect => {
log::error!("gtk-single-instance is set to detect which should be impossible!");
return Err(PostForkError);
}
},
}
let Some(pid) = cmd.pid else {
log::error!("PID of child not known!");
return Err(PostForkError);
};
let pid = pid as u32;
let expected = fmt_scope(pid);
log::debug!("beginning transition to transient systemd scope {expected}");
match create_scope(
pid,
info.linux_cgroup_memory_limit,
info.linux_cgroup_processes_limit,
) {
None => {
if info.linux_cgroup_hard_fail {
log::error!("dbus connection required for cgroup isolation, exiting");
return Err(PostForkError);
}
return Ok(());
}
Some(Err(err)) => {
if info.linux_cgroup_hard_fail {
log::error!("unable to create transient systemd scope {expected}: {err}");
return Err(PostForkError);
}
log::warn!("unable to create transient systemd scope {expected}: {err}");
return Ok(());
}
Some(Ok(())) => {}
}
if wait_for_cgroup(pid, &expected) {
log::debug!("transition to transient systemd scope {expected} complete");
} else {
if info.linux_cgroup_hard_fail {
log::error!("transition to new transient systemd scope {expected} took too long");
return Err(PostForkError);
}
log::warn!("transition to transient systemd scope {expected} took too long");
}
Ok(())
}
#[cfg(test)]
mod tests {
use std::{
fs::File,
io::{Read, Seek, SeekFrom},
sync::Arc,
};
use std::os::fd::AsRawFd;
use ghostty_os::TempDir;
use super::*;
fn test_file(td: &TempDir, name: &str) -> File {
std::fs::OpenOptions::new()
.read(true)
.write(true)
.create(true)
.truncate(true)
.open(td.path().join(name))
.unwrap()
}
fn read_all(mut f: File) -> String {
f.seek(SeekFrom::Start(0)).unwrap();
let mut s = String::new();
f.read_to_string(&mut s).unwrap();
s
}
fn sh(script: &str) -> Command {
Command::new("/bin/sh", &["/bin/sh", "-c", script])
}
#[test]
fn create_null_delimited_env_map() {
// The Zig test checks the null-delimited env block; here the
// equivalent is `prepare()`.
let mut cmd = Command::new("/bin/sh", &[]);
cmd.env = Some(
[
("HOME", "/home/ifreund"),
("WAYLAND_DISPLAY", "wayland-1"),
("DISPLAY", ":1"),
("DEBUGINFOD_URLS", " "),
("XCURSOR_SIZE", "24"),
]
.into_iter()
.map(|(k, v)| (k.to_owned(), v.to_owned()))
.collect(),
);
let prep = cmd.prepare().unwrap();
assert_eq!(prep.envp.len(), 5);
for target in [
"HOME=/home/ifreund",
"WAYLAND_DISPLAY=wayland-1",
"DISPLAY=:1",
"DEBUGINFOD_URLS= ",
"XCURSOR_SIZE=24",
] {
assert!(prep.envp.iter().any(|v| v.to_str().unwrap() == target));
}
// Empty args fall back to path as args[0].
assert_eq!(prep.argv.len(), 1);
}
fn pre_exec_exit_test(cmd: &mut Command) {
cmd.start().unwrap();
assert!(cmd.pid.is_some());
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(42));
}
#[test]
fn os_pre_exec_1() {
let mut cmd = Command::new("/bin/sh", &["/bin/sh", "-v"]);
// This runs in the child, so we can exit and it won't kill the test
// runner.
cmd.os_pre_exec = Some(Box::new(|| exit_immediately(42)));
pre_exec_exit_test(&mut cmd);
}
#[test]
fn os_pre_exec_2() {
let mut cmd = Command::new("/bin/sh", &["/bin/sh", "-v"]);
cmd.os_pre_exec = Some(Box::new(|| Some(42)));
pre_exec_exit_test(&mut cmd);
}
#[test]
fn rt_pre_exec_1() {
let mut cmd = Command::new("/bin/sh", &["/bin/sh", "-v"]);
cmd.rt_pre_exec = Some(Box::new(|| exit_immediately(42)));
pre_exec_exit_test(&mut cmd);
}
#[test]
fn rt_pre_exec_2() {
let mut cmd = Command::new("/bin/sh", &["/bin/sh", "-v"]);
cmd.rt_pre_exec = Some(Box::new(|| Some(42)));
pre_exec_exit_test(&mut cmd);
}
#[test]
fn rt_post_fork_1() {
let mut cmd = sh("sleep 1");
cmd.rt_post_fork = Some(Box::new(|_| Err(PostForkError)));
assert!(matches!(
cmd.start(),
Err(StartError::PostFork(PostForkError))
));
// Reap the child that was started anyway (like the Zig test leaks it).
if let Some(pid) = cmd.pid.and_then(process::Pid::from_raw) {
let _ = process::kill_process(pid, process::Signal::KILL);
}
let _ = cmd.wait(true);
}
#[test]
fn redirect_stdout_to_file() {
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let mut cmd = sh("echo hello");
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.start().unwrap();
assert!(cmd.pid.is_some());
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(0));
assert!(!read_all(stdout).is_empty());
}
#[test]
fn custom_env_vars() {
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let mut cmd = sh("echo $VALUE");
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.env = Some(HashMap::from([("VALUE".to_owned(), "hello".to_owned())]));
cmd.start().unwrap();
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(0));
assert_eq!("hello\n", read_all(stdout));
}
#[test]
fn custom_working_directory() {
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let mut cmd = sh("pwd");
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.cwd = Some("/tmp".to_owned());
cmd.start().unwrap();
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(0));
assert_eq!("/tmp\n", read_all(stdout));
}
#[test]
fn invalid_cwd_is_ignored() {
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let mut cmd = sh("echo ok");
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.cwd = Some("/definitely/not/a/dir".to_owned());
cmd.start().unwrap();
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(0));
assert_eq!("ok\n", read_all(stdout));
}
// Validate an exec failure correctly terminates the child (in Zig:
// error.ExecFailedInChild must be handled or a second copy of the process
// keeps running; here the child can never return into the caller).
#[test]
fn posix_fork_handles_execve_failure() {
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let stderr = test_file(&td, "stderr.txt");
let mut cmd = Command::new("/not/a/binary", &["/not/a/binary", ""]);
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.stderr = Some(stderr.try_clone().unwrap().into());
cmd.cwd = Some("/bin".to_owned());
cmd.start().unwrap();
assert!(cmd.pid.is_some());
assert_eq!(cmd.wait(true).unwrap(), Exit::Exited(1));
assert!(read_all(stderr).starts_with("Requested executable not found."));
}
#[test]
fn wait_nonblocking_eventually_reports() {
let mut cmd = sh("exit 3");
cmd.start().unwrap();
assert_eq!(cmd.wait(false).unwrap(), Exit::Exited(3));
}
#[test]
fn exit_signal_and_decode() {
let mut cmd = sh("kill -TERM $$");
cmd.start().unwrap();
assert_eq!(cmd.wait(true).unwrap(), Exit::Signal(15));
assert_eq!(Exit::init(0), Exit::Exited(0));
assert_eq!(Exit::init(42 << 8), Exit::Exited(42));
assert_eq!(Exit::init(9), Exit::Signal(9));
assert_eq!(Exit::init((19 << 8) | 0x7f), Exit::Stopped(19));
}
#[test]
fn post_fork_sees_pid() {
let seen = Arc::new(std::sync::Mutex::new(None));
let seen2 = Arc::clone(&seen);
let mut cmd = sh("true");
cmd.rt_post_fork = Some(Box::new(move |c| {
*seen2.lock().unwrap() = c.pid;
Ok(())
}));
cmd.start().unwrap();
assert_eq!(*seen.lock().unwrap(), cmd.pid);
cmd.wait(true).unwrap();
}
#[test]
fn stdio_fds_are_not_cloexec_in_child_and_closed_others() {
// The master end of a pty is CLOEXEC so the child must not see it.
let pty = crate::pty::Pty::open(crate::pty::Winsize::default()).unwrap();
let master = pty.master.as_raw_fd();
let td = TempDir::init().unwrap();
let stdout = test_file(&td, "stdout.txt");
let mut cmd = sh(&format!(
"[ -e /proc/self/fd/{master} ] && echo leaked || echo ok"
));
cmd.stdout = Some(stdout.try_clone().unwrap().into());
cmd.start().unwrap();
cmd.wait(true).unwrap();
assert_eq!("ok\n", read_all(stdout));
}
#[test]
fn cgroup_pre_exec_modes() {
let never = RtPreExecInfo {
linux_cgroup: LinuxCgroup::Never,
..Default::default()
};
assert_eq!(linux_cgroup_pre_exec(&never), None);
let detect = RtPreExecInfo::default();
assert_eq!(linux_cgroup_pre_exec(&detect), Some(127));
let single_false = RtPreExecInfo {
gtk_single_instance: GtkSingleInstance::False,
..Default::default()
};
assert_eq!(linux_cgroup_pre_exec(&single_false), None);
assert_eq!(fmt_scope(1234), "app-ghostty-surface-transient-1234.scope");
}
#[test]
fn cgroup_post_fork_modes() {
let mut cmd = sh("true");
cmd.pid = Some(1);
let never = RtPostForkInfo {
linux_cgroup: LinuxCgroup::Never,
..Default::default()
};
assert!(linux_cgroup_post_fork(&cmd, &never, |_, _, _| unreachable!()).is_ok());
let detect = RtPostForkInfo::default();
assert!(linux_cgroup_post_fork(&cmd, &detect, |_, _, _| unreachable!()).is_err());
// No dbus: soft fail ok, hard fail err.
let always = RtPostForkInfo {
linux_cgroup: LinuxCgroup::Always,
..Default::default()
};
assert!(linux_cgroup_post_fork(&cmd, &always, |_, _, _| None).is_ok());
let hard = RtPostForkInfo {
linux_cgroup_hard_fail: true,
..always
};
assert!(linux_cgroup_post_fork(&cmd, &hard, |_, _, _| None).is_err());
assert!(linux_cgroup_post_fork(&cmd, &hard, |_, _, _| Some(Err("x".into()))).is_err());
}
}
crates/ghostty-termio/src/lib.rs
+24
View File
@@ -1 +1,25 @@
//! ghostty-termio: see docs/rewrite/ARCHITECTURE.md for the module map.
//!
//! Ported so far (Linux only): `pty.zig`, `Command.zig`,
//! `termio/shell_integration.zig`, the `terminfo/*` source generator.
//! See `docs/rewrite/notes/ghostty-termio-IO1.md`.
//!
//! This crate may use limited `unsafe` (fork/exec in `command`, a few
//! async-signal-safe libc calls in `pty`); everything else is safe.
#![cfg_attr(
test,
allow(
clippy::unwrap_used,
clippy::assert_is_empty,
clippy::items_after_statements
)
)]
pub mod command;
pub mod pty;
pub mod shell_integration;
pub mod terminfo;
pub use command::Command;
pub use pty::{Pty, Winsize};
crates/ghostty-termio/src/pty.rs
+303
View File
@@ -0,0 +1,303 @@
//! Linux PTY creation and management. This is just a thin layer on top
//! of Linux syscalls. Port of `pty.zig` (POSIX variant only; the Windows
//! and null variants are out of scope).
use std::os::fd::{AsRawFd, OwnedFd, RawFd};
use rustix::{fs, process, pty, termios};
/// Redeclare the winsize struct so we can just use a Rust struct. The
/// defaults on this are some reasonable screen size but you should probably
/// not use them.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Winsize {
pub ws_row: u16,
pub ws_col: u16,
pub ws_xpixel: u16,
pub ws_ypixel: u16,
}
impl Default for Winsize {
fn default() -> Self {
Self {
ws_row: 100,
ws_col: 80,
ws_xpixel: 800,
ws_ypixel: 600,
}
}
}
impl From<Winsize> for termios::Winsize {
fn from(w: Winsize) -> Self {
Self {
ws_row: w.ws_row,
ws_col: w.ws_col,
ws_xpixel: w.ws_xpixel,
ws_ypixel: w.ws_ypixel,
}
}
}
impl From<termios::Winsize> for Winsize {
fn from(w: termios::Winsize) -> Self {
Self {
ws_row: w.ws_row,
ws_col: w.ws_col,
ws_xpixel: w.ws_xpixel,
ws_ypixel: w.ws_ypixel,
}
}
}
/// The modes of a pty. Not all of these modes are supported on
/// all platforms but all platforms share the same mode struct.
///
/// The default values of fields in this struct are set to the
/// most typical values for a pty.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Mode {
/// ICANON on POSIX
pub canonical: bool,
/// ECHO on POSIX
pub echo: bool,
}
impl Default for Mode {
fn default() -> Self {
Self {
canonical: true,
echo: true,
}
}
}
#[derive(Debug, thiserror::Error, PartialEq, Eq)]
pub enum Error {
#[error("openpty failed")]
OpenptyFailed,
#[error("get mode failed")]
GetModeFailed,
#[error("ioctl failed")]
IoctlFailed,
#[error("operation not supported")]
OperationNotSupported,
#[error("setsid failed")]
ProcessGroupFailed,
#[error("setting the controlling terminal failed")]
SetControllingTerminalFailed,
}
/// A pty master/slave pair.
///
/// Deviation from Zig: both fds are `OwnedFd` and are closed on drop (the Zig
/// struct never closes the slave automatically). To close the slave early
/// (as Exec does after the fork) use [`Pty::close_slave`] or destructure.
#[derive(Debug)]
pub struct Pty {
pub master: OwnedFd,
/// `None` once closed with [`Pty::close_slave`].
pub slave: Option<OwnedFd>,
}
impl Pty {
/// Open a new PTY with the given initial size.
pub fn open(size: Winsize) -> Result<Pty, Error> {
// Equivalent of glibc openpty(): the master is CLOEXEC (Ghostty sets
// this explicitly: only the slave fd should be inherited by the
// child), the slave is not.
let master = pty::openpt(
pty::OpenptFlags::RDWR | pty::OpenptFlags::NOCTTY | pty::OpenptFlags::CLOEXEC,
)
.map_err(|_| Error::OpenptyFailed)?;
pty::grantpt(&master).map_err(|_| Error::OpenptyFailed)?;
pty::unlockpt(&master).map_err(|_| Error::OpenptyFailed)?;
let name = pty::ptsname(&master, Vec::new()).map_err(|_| Error::OpenptyFailed)?;
let slave = fs::open(
name.as_c_str(),
fs::OFlags::RDWR | fs::OFlags::NOCTTY,
fs::Mode::empty(),
)
.map_err(|_| Error::OpenptyFailed)?;
termios::tcsetwinsize(&master, size.into()).map_err(|_| Error::OpenptyFailed)?;
// Enable UTF-8 mode. I think this is on by default on Linux but it
// is NOT on by default on macOS so we ensure that it is always set.
let mut attrs = termios::tcgetattr(&master).map_err(|_| Error::OpenptyFailed)?;
attrs.input_modes.insert(termios::InputModes::IUTF8);
termios::tcsetattr(&master, termios::OptionalActions::Now, &attrs)
.map_err(|_| Error::OpenptyFailed)?;
Ok(Pty {
master,
slave: Some(slave),
})
}
/// Close the slave side (the parent does this after forking the child).
pub fn close_slave(&mut self) {
self.slave = None;
}
/// Get the modes of the pty (read from the master).
pub fn get_mode(&self) -> Result<Mode, Error> {
let attrs = termios::tcgetattr(&self.master).map_err(|_| Error::GetModeFailed)?;
Ok(Mode {
canonical: attrs.local_modes.contains(termios::LocalModes::ICANON),
echo: attrs.local_modes.contains(termios::LocalModes::ECHO),
})
}
/// Return the size of the pty.
pub fn get_size(&self) -> Result<Winsize, Error> {
termios::tcgetwinsize(&self.master)
.map(Into::into)
.map_err(|_| Error::IoctlFailed)
}
/// Set the size of the pty.
pub fn set_size(&mut self, size: Winsize) -> Result<(), Error> {
termios::tcsetwinsize(&self.master, size.into()).map_err(|_| Error::IoctlFailed)
}
/// Raw fds for use in the child's pre-exec hook (see [`child_pre_exec`]).
pub fn raw_fds(&self) -> (RawFd, Option<RawFd>) {
(
self.master.as_raw_fd(),
self.slave.as_ref().map(AsRawFd::as_raw_fd),
)
}
/// This should be called prior to exec in the forked child process
/// in order to setup the tty properly. See [`child_pre_exec`].
pub fn child_pre_exec(&self) -> Result<(), Error> {
let (master, slave) = self.raw_fds();
child_pre_exec(master, slave.unwrap_or(-1))
}
}
/// Signals reset to their default disposition in the child.
const RESET_SIGNALS: [nix::sys::signal::Signal; 13] = {
use nix::sys::signal::Signal as S;
[
S::SIGABRT,
S::SIGALRM,
S::SIGBUS,
S::SIGCHLD,
S::SIGFPE,
S::SIGHUP,
S::SIGILL,
S::SIGINT,
S::SIGPIPE,
S::SIGSEGV,
S::SIGTRAP,
S::SIGTERM,
S::SIGQUIT,
]
};
/// Child-side setup of the tty: reset signals, `setsid`, `TIOCSCTTY` on the
/// slave and close the master/slave fds. Operates on raw fd numbers so it can
/// be used from a post-fork hook (`Command::os_pre_exec`) without touching
/// any `OwnedFd` destructors. Everything in here is async-signal-safe (no
/// allocation, no locks).
///
/// A negative `slave` skips the controlling-terminal step and the close.
pub fn child_pre_exec(master: RawFd, slave: RawFd) -> Result<(), Error> {
use nix::sys::signal::{SaFlags, SigAction, SigHandler, SigSet};
// Reset our signals
let sa = SigAction::new(SigHandler::SigDfl, SaFlags::empty(), SigSet::empty());
for sig in RESET_SIGNALS {
reset_signal(sig, &sa);
}
// Create a new process group
process::setsid().map_err(|_| Error::ProcessGroupFailed)?;
if slave >= 0 {
// Set controlling terminal
set_controlling_terminal(slave)?;
}
// Can close master/slave pair now
close_raw(slave);
close_raw(master);
Ok(())
}
#[allow(unsafe_code)]
fn reset_signal(sig: nix::sys::signal::Signal, sa: &nix::sys::signal::SigAction) {
// SAFETY: sigaction(2) is async-signal-safe and SIG_DFL installs no
// Rust handler code.
let _ = unsafe { nix::sys::signal::sigaction(sig, sa) };
}
#[allow(unsafe_code)]
fn set_controlling_terminal(slave: RawFd) -> Result<(), Error> {
use std::os::fd::BorrowedFd;
// SAFETY: the fd is owned by the caller and stays open for the duration of
// this call; we only borrow it for one ioctl.
let fd = unsafe { BorrowedFd::borrow_raw(slave) };
process::ioctl_tiocsctty(fd).map_err(|err| {
log::error!("error setting controlling terminal errno={err:?}");
Error::SetControllingTerminalFailed
})
}
#[allow(unsafe_code)]
fn close_raw(fd: RawFd) {
if fd < 0 {
return;
}
// SAFETY: closing a raw fd number we were told to close; in the child
// the `OwnedFd`s that nominally own these are never dropped (the child
// execs or `_exit`s), so there is no double close.
unsafe { rustix::io::close(fd) };
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn pty_size() {
let mut ws = Winsize {
ws_row: 50,
ws_col: 80,
ws_xpixel: 1,
ws_ypixel: 1,
};
let mut pty = Pty::open(ws).unwrap();
// Initialize size should match what we gave it
assert_eq!(ws, pty.get_size().unwrap());
// Can set and read new sizes
ws.ws_row *= 2;
pty.set_size(ws).unwrap();
assert_eq!(ws, pty.get_size().unwrap());
}
#[test]
fn default_mode_and_utf8() {
let pty = Pty::open(Winsize::default()).unwrap();
let mode = pty.get_mode().unwrap();
assert_eq!(mode, Mode::default());
let attrs = termios::tcgetattr(&pty.master).unwrap();
assert!(attrs.input_modes.contains(termios::InputModes::IUTF8));
}
#[test]
fn master_is_cloexec_slave_is_not() {
let pty = Pty::open(Winsize::default()).unwrap();
let m = rustix::io::fcntl_getfd(&pty.master).unwrap();
assert!(m.contains(rustix::io::FdFlags::CLOEXEC));
let s = rustix::io::fcntl_getfd(pty.slave.as_ref().unwrap()).unwrap();
assert!(!s.contains(rustix::io::FdFlags::CLOEXEC));
}
}
crates/ghostty-termio/src/shell_integration.rs
+893
View File
@@ -0,0 +1,893 @@
//! Shell integration setup. Port of `termio/shell_integration.zig`.
//!
//! The shell scripts live in `resources/shell-integration/` at the workspace
//! root (copied verbatim from `src/shell-integration/`).
use std::{collections::HashMap, path::Path};
use ghostty_os::{env::prepend_env, homedir, shell::ShellCommandBuilder};
/// The environment passed to the child (Zig `std.process.EnvMap`).
pub type EnvMap = HashMap<String, String>;
/// Shell types we support
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Shell {
Bash,
Elvish,
Fish,
Nushell,
Zsh,
}
impl Shell {
pub const ALL: [Shell; 5] = [
Shell::Bash,
Shell::Elvish,
Shell::Fish,
Shell::Nushell,
Shell::Zsh,
];
/// The name of the shell (Zig `@tagName`), also the directory name inside
/// `shell-integration/`.
pub fn tag_name(self) -> &'static str {
match self {
Shell::Bash => "bash",
Shell::Elvish => "elvish",
Shell::Fish => "fish",
Shell::Nushell => "nushell",
Shell::Zsh => "zsh",
}
}
}
/// Local stand-in for `config.Command`.
/// TODO(integration): replace with `ghostty_config::Command`.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Command {
/// A shell command line, split with `ArgIteratorGeneral` rules.
Shell(String),
/// Directly executed argv.
Direct(Vec<String>),
}
impl Command {
/// The arguments of the command. For shell commands this is a best
/// effort parse equivalent to Zig's `std.process.ArgIteratorGeneral(.{})`
/// (whitespace separated, double quotes group, backslashes only special
/// before a quote).
pub fn arg_iterator(&self) -> std::vec::IntoIter<String> {
match self {
Command::Direct(v) => v.clone().into_iter(),
Command::Shell(s) => split_args_general(s).into_iter(),
}
}
}
/// `std.process.ArgIteratorGeneral(.{})` (Windows command-line rules).
fn split_args_general(cmd_line: &str) -> Vec<String> {
let b = cmd_line.as_bytes();
let mut i = 0;
let mut out = Vec::new();
loop {
// Skip whitespace
while i < b.len() && (b[i] == b' ' || b[i] == b'\t') {
i += 1;
}
if i >= b.len() {
return out;
}
let mut buf: Vec<u8> = Vec::new();
let mut backslashes = 0usize;
let mut in_quote = false;
loop {
let c = b.get(i).copied();
match c {
None => {
buf.extend(std::iter::repeat_n(b'\\', backslashes));
break;
}
Some(b' ' | b'\t') if !in_quote => {
buf.extend(std::iter::repeat_n(b'\\', backslashes));
i += 1;
break;
}
Some(b'\\') => {
backslashes += 1;
i += 1;
}
Some(b'"') => {
let real = backslashes.is_multiple_of(2);
buf.extend(std::iter::repeat_n(b'\\', backslashes / 2));
backslashes = 0;
if real {
in_quote = !in_quote;
} else {
buf.push(b'"');
}
i += 1;
}
Some(ch) => {
buf.extend(std::iter::repeat_n(b'\\', backslashes));
backslashes = 0;
buf.push(ch);
i += 1;
}
}
}
out.push(String::from_utf8_lossy(&buf).into_owned());
}
}
/// Local stand-in for `config.ShellIntegrationFeatures` (same defaults).
/// TODO(integration): replace with `ghostty_config::ShellIntegrationFeatures`.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct ShellIntegrationFeatures {
pub cursor: bool,
pub sudo: bool,
pub title: bool,
pub ssh_env: bool,
pub ssh_terminfo: bool,
pub path: bool,
}
impl Default for ShellIntegrationFeatures {
fn default() -> Self {
Self {
cursor: true,
sudo: false,
title: true,
ssh_env: false,
ssh_terminfo: false,
path: true,
}
}
}
impl ShellIntegrationFeatures {
/// All features disabled (`std.mem.zeroes`).
pub const NONE: Self = Self {
cursor: false,
sudo: false,
title: false,
ssh_env: false,
ssh_terminfo: false,
path: false,
};
}
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("unable to determine home directory: {0}")]
Home(#[from] homedir::Error),
}
/// The result of setting up a shell integration.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ShellIntegration {
/// The successfully-integrated shell.
pub shell: Shell,
/// The command to use to start the shell with the integration.
/// In most cases this is identical to the command given but for
/// bash in particular it may be different.
pub command: Command,
}
/// Set up the command execution environment for automatic
/// integrated shell integration and return a ShellIntegration
/// struct describing the integration. If integration fails
/// (shell type couldn't be detected, etc.), this will return None.
pub fn setup(
resource_dir: &str,
command: &Command,
env: &mut EnvMap,
force_shell: Option<Shell>,
) -> Result<Option<ShellIntegration>, Error> {
let Some(shell) = force_shell.or_else(|| detect_shell(command)) else {
return Ok(None);
};
let new_command = match shell {
Shell::Bash => setup_bash(command, resource_dir, env)?,
Shell::Nushell => setup_nushell(command, resource_dir, env),
Shell::Zsh => setup_zsh(command, resource_dir, env),
Shell::Elvish | Shell::Fish => {
if !setup_xdg_data_dirs(resource_dir, env) {
return Ok(None);
}
Some(command.clone())
}
};
Ok(new_command.map(|command| ShellIntegration { shell, command }))
}
fn basename(path: &str) -> &str {
// std.fs.path.basename: strips trailing separators.
let trimmed = path.trim_end_matches('/');
match trimmed.rfind('/') {
Some(i) => &trimmed[i + 1..],
None => trimmed,
}
}
fn detect_shell(command: &Command) -> Option<Shell> {
let mut it = command.arg_iterator();
let arg0 = it.next()?;
let exe = basename(&arg0);
match exe {
// (The Darwin /bin/bash special case does not apply on Linux.)
"bash" => Some(Shell::Bash),
"elvish" => Some(Shell::Elvish),
"fish" => Some(Shell::Fish),
"nu" => Some(Shell::Nushell),
"zsh" => Some(Shell::Zsh),
_ => None,
}
}
/// Set up the shell integration features environment variable.
pub fn setup_features(env: &mut EnvMap, features: ShellIntegrationFeatures, cursor_blink: bool) {
// Sorted (case-insensitively) so that the output is deterministic.
let fields: [(&str, bool); 6] = [
("cursor", features.cursor),
("path", features.path),
("ssh-env", features.ssh_env),
("ssh-terminfo", features.ssh_terminfo),
("sudo", features.sudo),
("title", features.title),
];
let mut buf = String::new();
for (name, enabled) in fields {
if enabled {
if !buf.is_empty() {
buf.push(',');
}
buf.push_str(name);
if name == "cursor" {
buf.push_str(if cursor_blink { ":blink" } else { ":steady" });
}
}
}
if !buf.is_empty() {
env.insert("GHOSTTY_SHELL_FEATURES".to_owned(), buf);
}
}
/// Setup the bash automatic shell integration. This works by
/// starting bash in POSIX mode and using the ENV environment
/// variable to load our bash integration script. This prevents
/// bash from loading its normal startup files, which becomes
/// our script's responsibility (along with disabling POSIX
/// mode).
///
/// This returns a new shell command string that enables the integration
/// or None if integration failed.
fn setup_bash(
command: &Command,
resource_dir: &str,
env: &mut EnvMap,
) -> Result<Option<Command>, Error> {
let mut cmd = ShellCommandBuilder::new();
// Iterator that yields each argument in the original command line.
let mut iter = command.arg_iterator();
// Start accumulating arguments with the executable and initial flags.
match iter.next() {
Some(exe) => cmd.append_arg(&exe),
None => return Ok(None),
}
cmd.append_arg("--posix");
// Stores the list of intercepted command line flags that will be passed
// to our shell integration script: --norc --noprofile
// We always include at least "1" so the script can differentiate between
// being manually sourced or automatically injected (from here).
let mut inject = String::from("1");
// Walk through the rest of the given arguments. If we see an option that
// would require complex or unsupported integration behavior, we bail out
// and skip loading our shell integration. Users can still manually source
// the shell integration script.
//
// Unsupported options:
// -c -c is always non-interactive
// --posix POSIX mode (a la /bin/sh)
let mut rcfile: Option<String> = None;
while let Some(arg) = iter.next() {
if arg == "--posix" {
return Ok(None);
} else if arg == "--norc" {
inject.push_str(" --norc");
} else if arg == "--noprofile" {
inject.push_str(" --noprofile");
} else if arg == "--rcfile" || arg == "--init-file" {
rcfile = iter.next();
} else if arg.len() > 1 && arg.starts_with('-') && !arg[1..].starts_with('-') {
// '-c command' is always non-interactive
if arg.contains('c') {
return Ok(None);
}
cmd.append_arg(&arg);
} else if arg == "-" || arg == "--" {
// All remaining arguments should be passed directly to the shell
// command. We shouldn't perform any further option processing.
cmd.append_arg(&arg);
for remaining in iter.by_ref() {
cmd.append_arg(&remaining);
}
break;
} else {
cmd.append_arg(&arg);
}
}
// Preserve an existing ENV value. We're about to overwrite it.
if let Some(v) = env.get("ENV").cloned() {
env.insert("GHOSTTY_BASH_ENV".to_owned(), v);
}
// Set our new ENV to point to our integration script.
let script_path = format!("{resource_dir}/shell-integration/bash/ghostty.bash");
match std::fs::File::open(&script_path) {
Ok(_) => {
env.insert("ENV".to_owned(), script_path);
}
Err(err) => {
log::warn!("unable to open {script_path}: {err}");
env.remove("GHOSTTY_BASH_ENV");
return Ok(None);
}
}
env.insert("GHOSTTY_BASH_INJECT".to_owned(), inject);
if let Some(v) = rcfile {
env.insert("GHOSTTY_BASH_RCFILE".to_owned(), v);
}
// In POSIX mode, HISTFILE defaults to ~/.sh_history, so unless we're
// staying in POSIX mode (--posix), change it back to ~/.bash_history.
if !env.contains_key("HISTFILE")
&& let Some(home) = homedir::home()?
{
env.insert("HISTFILE".to_owned(), format!("{home}/.bash_history"));
env.insert("GHOSTTY_BASH_UNEXPORT_HISTFILE".to_owned(), "1".to_owned());
}
// Return a copy of our modified command line to use as the shell command.
Ok(Some(Command::Shell(cmd.written().to_owned())))
}
/// Setup automatic shell integration for shells that include
/// their modules from paths in `XDG_DATA_DIRS` env variable.
///
/// The shell-integration path is prepended to `XDG_DATA_DIRS`.
/// It is also saved in the `GHOSTTY_SHELL_INTEGRATION_XDG_DIR` variable
/// so that the shell can refer to it and safely remove this directory
/// from `XDG_DATA_DIRS` when integration is complete.
fn setup_xdg_data_dirs(resource_dir: &str, env: &mut EnvMap) -> bool {
// Get our path to the shell integration directory.
let integ_path = format!("{resource_dir}/shell-integration");
if let Err(err) = std::fs::read_dir(&integ_path) {
log::warn!("unable to open {integ_path}: {err}");
return false;
}
// Set an env var so we can remove this from XDG_DATA_DIRS later.
// This happens in the shell integration config itself. We do this
// so that our modifications don't interfere with other commands.
env.insert(
"GHOSTTY_SHELL_INTEGRATION_XDG_DIR".to_owned(),
integ_path.clone(),
);
// If no XDG_DATA_DIRS set use the default value as specified.
// This ensures that the default directories aren't lost by setting
// our desired integration dir directly. See #2711.
// <https://specifications.freedesktop.org/basedir-spec/0.6/#variables>
let key = "XDG_DATA_DIRS";
let current = env
.get(key)
.map_or("/usr/local/share:/usr/share", String::as_str);
let new = prepend_env(current, &integ_path);
env.insert(key.to_owned(), new);
true
}
/// Set up automatic Nushell shell integration. This works by adding our
/// shell resource directory to the `XDG_DATA_DIRS` environment variable,
/// which Nushell will use to load `nushell/vendor/autoload/ghostty.nu`.
///
/// We then add `--execute 'use ghostty ...'` to the nu command line to
/// automatically enable our shell features.
fn setup_nushell(command: &Command, resource_dir: &str, env: &mut EnvMap) -> Option<Command> {
// Add our XDG_DATA_DIRS entry (for nushell/vendor/autoload/). This
// makes our 'ghostty' module automatically available, even if any
// of the later checks abort the rest of our automatic integration.
if !setup_xdg_data_dirs(resource_dir, env) {
return None;
}
let mut cmd = ShellCommandBuilder::new();
let mut iter = command.arg_iterator();
// Start accumulating arguments with the executable and initial flags.
cmd.append_arg(&iter.next()?);
// Tell nu to immediately "use" all of the exported functions in our
// 'ghostty' module.
//
// We can consider making this more specific based on the set of
// enabled shell features (e.g. `use ghostty sudo`). At the moment,
// shell features are all runtime-guarded in the nushell script.
cmd.append_arg("--execute 'use ghostty *'");
// Walk through the rest of the given arguments. If we see an option that
// would require complex or unsupported integration behavior, we bail out
// and skip loading our shell integration. Users can still manually source
// the shell integration module.
//
// Unsupported options:
// -c / --command -c is always non-interactive
// --lsp --lsp starts the language server
while let Some(arg) = iter.next() {
if arg == "--command" || arg == "--lsp" {
return None;
} else if arg.len() > 1 && arg.starts_with('-') && !arg[1..].starts_with('-') {
if arg.contains('c') {
return None;
}
cmd.append_arg(&arg);
} else if arg == "-" || arg == "--" {
// All remaining arguments should be passed directly to the shell
// command. We shouldn't perform any further option processing.
cmd.append_arg(&arg);
for remaining in iter.by_ref() {
cmd.append_arg(&remaining);
}
break;
} else {
cmd.append_arg(&arg);
}
}
// Return a copy of our modified command line to use as the shell command.
Some(Command::Shell(cmd.written().to_owned()))
}
/// Setup the zsh automatic shell integration. This works by setting
/// ZDOTDIR to our resources dir so that zsh will load our config. This
/// config then loads the true user config.
fn setup_zsh(command: &Command, resource_dir: &str, env: &mut EnvMap) -> Option<Command> {
// Preserve an existing ZDOTDIR value. We're about to overwrite it.
if let Some(old) = env.get("ZDOTDIR").cloned() {
env.insert("GHOSTTY_ZSH_ZDOTDIR".to_owned(), old);
}
// Set our new ZDOTDIR to point to our shell resource directory.
let integ_path = format!("{resource_dir}/shell-integration/zsh");
if !Path::new(&integ_path).is_dir() {
// Mirrors openDirAbsolute failing (missing or not a directory).
log::warn!("unable to open {integ_path}");
return None;
}
env.insert("ZDOTDIR".to_owned(), integ_path);
Some(command.clone())
}
#[cfg(test)]
mod tests {
use ghostty_os::TempDir;
use super::*;
/// Test helper that creates a temporary resources directory with shell
/// integration paths.
struct TmpResourcesDir {
_tmp: TempDir,
path: String,
shell_path: String,
}
impl TmpResourcesDir {
fn new(shell: Shell) -> Self {
let tmp = TempDir::init().unwrap();
let path = std::fs::canonicalize(tmp.path())
.unwrap()
.to_string_lossy()
.into_owned();
let rel = format!("shell-integration/{}", shell.tag_name());
std::fs::create_dir_all(format!("{path}/{rel}")).unwrap();
let shell_path = format!("{path}/{rel}");
if shell == Shell::Bash {
std::fs::write(format!("{path}/shell-integration/bash/ghostty.bash"), "").unwrap();
}
Self {
_tmp: tmp,
path,
shell_path,
}
}
}
fn sh(s: &str) -> Command {
Command::Shell(s.to_owned())
}
fn shell_str(c: Option<&Command>) -> &str {
match c.unwrap() {
Command::Shell(s) => s,
Command::Direct(_) => panic!("expected shell"),
}
}
#[test]
fn force_shell() {
let mut env = EnvMap::new();
for shell in Shell::ALL {
let res = TmpResourcesDir::new(shell);
let result = setup(&res.path, &sh("sh"), &mut env, Some(shell)).unwrap();
assert_eq!(shell, result.unwrap().shell);
}
}
#[test]
fn shell_integration_failure() {
let mut env = EnvMap::new();
let result = setup("/nonexistent", &sh("sh"), &mut env, None).unwrap();
assert!(result.is_none());
assert_eq!(0, env.len());
}
#[test]
fn detect_shell_cases() {
assert_eq!(detect_shell(&sh("sh")), None);
assert_eq!(detect_shell(&sh("bash")), Some(Shell::Bash));
assert_eq!(detect_shell(&sh("elvish")), Some(Shell::Elvish));
assert_eq!(detect_shell(&sh("fish")), Some(Shell::Fish));
assert_eq!(detect_shell(&sh("nu")), Some(Shell::Nushell));
assert_eq!(detect_shell(&sh("zsh")), Some(Shell::Zsh));
assert_eq!(detect_shell(&sh("bash -c 'command'")), Some(Shell::Bash));
assert_eq!(detect_shell(&sh("\"/a b/bash\"")), Some(Shell::Bash));
assert_eq!(detect_shell(&sh("/usr/bin/zsh")), Some(Shell::Zsh));
assert_eq!(
detect_shell(&Command::Direct(vec!["/bin/fish".into()])),
Some(Shell::Fish)
);
assert_eq!(detect_shell(&sh("")), None);
}
#[test]
fn arg_iterator_shell_and_direct() {
let v: Vec<_> = sh("echo hello world").arg_iterator().collect();
assert_eq!(v, ["echo", "hello", "world"]);
let v: Vec<_> = Command::Direct(vec!["echo".into(), "hello world".into()])
.arg_iterator()
.collect();
assert_eq!(v, ["echo", "hello world"]);
let v: Vec<_> = sh("a \"b c\"\td\\\"e").arg_iterator().collect();
assert_eq!(v, ["a", "b c", "d\"e"]);
}
#[test]
fn setup_features_all_variants() {
// all features enabled
let mut env = EnvMap::new();
setup_features(
&mut env,
ShellIntegrationFeatures {
cursor: true,
sudo: true,
title: true,
ssh_env: true,
ssh_terminfo: true,
path: true,
},
true,
);
assert_eq!(
"cursor:blink,path,ssh-env,ssh-terminfo,sudo,title",
env["GHOSTTY_SHELL_FEATURES"]
);
// all features disabled
let mut env = EnvMap::new();
setup_features(&mut env, ShellIntegrationFeatures::NONE, true);
assert!(!env.contains_key("GHOSTTY_SHELL_FEATURES"));
// mixed features
let mut env = EnvMap::new();
setup_features(
&mut env,
ShellIntegrationFeatures {
sudo: true,
ssh_env: true,
..ShellIntegrationFeatures::NONE
},
true,
);
assert_eq!("ssh-env,sudo", env["GHOSTTY_SHELL_FEATURES"]);
// blinking cursor
let only_cursor = ShellIntegrationFeatures {
cursor: true,
..ShellIntegrationFeatures::NONE
};
let mut env = EnvMap::new();
setup_features(&mut env, only_cursor, true);
assert_eq!("cursor:blink", env["GHOSTTY_SHELL_FEATURES"]);
// steady cursor
let mut env = EnvMap::new();
setup_features(&mut env, only_cursor, false);
assert_eq!("cursor:steady", env["GHOSTTY_SHELL_FEATURES"]);
}
#[test]
fn default_features() {
let mut env = EnvMap::new();
setup_features(&mut env, ShellIntegrationFeatures::default(), true);
assert_eq!("cursor:blink,path,title", env["GHOSTTY_SHELL_FEATURES"]);
}
#[test]
fn bash() {
let res = TmpResourcesDir::new(Shell::Bash);
let mut env = EnvMap::new();
let command = setup_bash(&sh("bash"), &res.path, &mut env).unwrap();
assert_eq!("bash --posix", shell_str(command.as_ref()));
assert_eq!("1", env["GHOSTTY_BASH_INJECT"]);
assert_eq!(format!("{}/ghostty.bash", res.shell_path), env["ENV"]);
}
#[test]
fn bash_unsupported_options() {
let res = TmpResourcesDir::new(Shell::Bash);
for cmdline in [
"bash --posix",
"bash --rcfile script.sh --posix",
"bash --init-file script.sh --posix",
"bash -c script.sh",
"bash -ic script.sh",
] {
let mut env = EnvMap::new();
assert!(
setup_bash(&sh(cmdline), &res.path, &mut env)
.unwrap()
.is_none()
);
assert_eq!(0, env.len());
}
}
#[test]
fn bash_inject_flags() {
let res = TmpResourcesDir::new(Shell::Bash);
let mut env = EnvMap::new();
let command = setup_bash(&sh("bash --norc"), &res.path, &mut env).unwrap();
assert_eq!("bash --posix", shell_str(command.as_ref()));
assert_eq!("1 --norc", env["GHOSTTY_BASH_INJECT"]);
let mut env = EnvMap::new();
let command = setup_bash(&sh("bash --noprofile"), &res.path, &mut env).unwrap();
assert_eq!("bash --posix", shell_str(command.as_ref()));
assert_eq!("1 --noprofile", env["GHOSTTY_BASH_INJECT"]);
}
#[test]
fn bash_rcfile() {
let res = TmpResourcesDir::new(Shell::Bash);
let mut env = EnvMap::new();
let command = setup_bash(&sh("bash --rcfile profile.sh"), &res.path, &mut env).unwrap();
assert_eq!("bash --posix", shell_str(command.as_ref()));
assert_eq!("profile.sh", env["GHOSTTY_BASH_RCFILE"]);
let command = setup_bash(&sh("bash --init-file profile.sh"), &res.path, &mut env).unwrap();
assert_eq!("bash --posix", shell_str(command.as_ref()));
assert_eq!("profile.sh", env["GHOSTTY_BASH_RCFILE"]);
}
#[test]
fn bash_histfile() {
let res = TmpResourcesDir::new(Shell::Bash);
// HISTFILE unset (needs a home dir; set HOME so it is deterministic)
temp_env::with_var("HOME", Some("/home/test"), || {
let mut env = EnvMap::new();
setup_bash(&sh("bash"), &res.path, &mut env).unwrap();
assert!(env["HISTFILE"].ends_with(".bash_history"));
assert_eq!("1", env["GHOSTTY_BASH_UNEXPORT_HISTFILE"]);
});
// HISTFILE set
let mut env = EnvMap::new();
env.insert("HISTFILE".into(), "my_history".into());
setup_bash(&sh("bash"), &res.path, &mut env).unwrap();
assert_eq!("my_history", env["HISTFILE"]);
assert!(!env.contains_key("GHOSTTY_BASH_UNEXPORT_HISTFILE"));
}
#[test]
fn bash_env() {
let res = TmpResourcesDir::new(Shell::Bash);
let mut env = EnvMap::new();
env.insert("ENV".into(), "env.sh".into());
setup_bash(&sh("bash"), &res.path, &mut env).unwrap();
assert_eq!("env.sh", env["GHOSTTY_BASH_ENV"]);
assert_eq!(format!("{}/ghostty.bash", res.shell_path), env["ENV"]);
}
#[test]
fn bash_additional_arguments() {
let res = TmpResourcesDir::new(Shell::Bash);
let mut env = EnvMap::new();
let command = setup_bash(&sh("bash - --arg file1 file2"), &res.path, &mut env).unwrap();
assert_eq!(
"bash --posix - --arg file1 file2",
shell_str(command.as_ref())
);
let command = setup_bash(&sh("bash -- --arg file1 file2"), &res.path, &mut env).unwrap();
assert_eq!(
"bash --posix -- --arg file1 file2",
shell_str(command.as_ref())
);
}
#[test]
fn bash_missing_resources() {
let tmp = TempDir::init().unwrap();
let dir = std::fs::canonicalize(tmp.path()).unwrap();
let mut env = EnvMap::new();
assert!(
setup_bash(&sh("bash"), dir.to_str().unwrap(), &mut env)
.unwrap()
.is_none()
);
assert_eq!(0, env.len());
}
#[test]
fn xdg_empty_xdg_data_dirs() {
let res = TmpResourcesDir::new(Shell::Fish);
let mut env = EnvMap::new();
assert!(setup_xdg_data_dirs(&res.path, &mut env));
assert_eq!(
format!("{}/shell-integration", res.path),
env["GHOSTTY_SHELL_INTEGRATION_XDG_DIR"]
);
assert_eq!(
format!("{}/shell-integration:/usr/local/share:/usr/share", res.path),
env["XDG_DATA_DIRS"]
);
}
#[test]
fn xdg_existing_xdg_data_dirs() {
let res = TmpResourcesDir::new(Shell::Fish);
let mut env = EnvMap::new();
env.insert("XDG_DATA_DIRS".into(), "/opt/share".into());
assert!(setup_xdg_data_dirs(&res.path, &mut env));
assert_eq!(
format!("{}/shell-integration", res.path),
env["GHOSTTY_SHELL_INTEGRATION_XDG_DIR"]
);
assert_eq!(
format!("{}/shell-integration:/opt/share", res.path),
env["XDG_DATA_DIRS"]
);
}
#[test]
fn xdg_missing_resources() {
let tmp = TempDir::init().unwrap();
let dir = std::fs::canonicalize(tmp.path()).unwrap();
let mut env = EnvMap::new();
assert!(!setup_xdg_data_dirs(dir.to_str().unwrap(), &mut env));
assert_eq!(0, env.len());
}
#[test]
fn nushell() {
let res = TmpResourcesDir::new(Shell::Nushell);
let mut env = EnvMap::new();
let command = setup_nushell(&sh("nu"), &res.path, &mut env);
assert_eq!("nu --execute 'use ghostty *'", shell_str(command.as_ref()));
assert_eq!(
format!("{}/shell-integration", res.path),
env["GHOSTTY_SHELL_INTEGRATION_XDG_DIR"]
);
assert!(env["XDG_DATA_DIRS"].starts_with(&format!("{}/shell-integration", res.path)));
}
#[test]
fn nushell_unsupported_options() {
let res = TmpResourcesDir::new(Shell::Nushell);
for cmdline in [
"nu --command exit",
"nu --lsp",
"nu -c script.sh",
"nu -ic script.sh",
] {
let mut env = EnvMap::new();
assert!(setup_nushell(&sh(cmdline), &res.path, &mut env).is_none());
assert!(env.contains_key("XDG_DATA_DIRS"));
assert!(env.contains_key("GHOSTTY_SHELL_INTEGRATION_XDG_DIR"));
}
}
#[test]
fn nushell_missing_resources() {
let tmp = TempDir::init().unwrap();
let dir = std::fs::canonicalize(tmp.path()).unwrap();
let mut env = EnvMap::new();
assert!(setup_nushell(&sh("nu"), dir.to_str().unwrap(), &mut env).is_none());
assert_eq!(0, env.len());
}
#[test]
fn zsh() {
let res = TmpResourcesDir::new(Shell::Zsh);
let mut env = EnvMap::new();
let command = setup_zsh(&sh("zsh"), &res.path, &mut env);
assert_eq!("zsh", shell_str(command.as_ref()));
assert_eq!(res.shell_path, env["ZDOTDIR"]);
assert!(!env.contains_key("GHOSTTY_ZSH_ZDOTDIR"));
}
#[test]
fn zsh_zdotdir() {
let res = TmpResourcesDir::new(Shell::Zsh);
let mut env = EnvMap::new();
env.insert("ZDOTDIR".into(), "$HOME/.config/zsh".into());
let command = setup_zsh(&sh("zsh"), &res.path, &mut env);
assert_eq!("zsh", shell_str(command.as_ref()));
assert_eq!(res.shell_path, env["ZDOTDIR"]);
assert_eq!("$HOME/.config/zsh", env["GHOSTTY_ZSH_ZDOTDIR"]);
}
#[test]
fn zsh_missing_resources() {
let tmp = TempDir::init().unwrap();
let dir = std::fs::canonicalize(tmp.path()).unwrap();
let mut env = EnvMap::new();
assert!(setup_zsh(&sh("zsh"), dir.to_str().unwrap(), &mut env).is_none());
assert_eq!(0, env.len());
}
#[test]
fn bundled_resources_exist() {
// The shipped scripts that setup() points shells at.
let root = Path::new(env!("CARGO_MANIFEST_DIR")).join("../../resources");
let root = root.to_str().unwrap();
let mut env = EnvMap::new();
let r = setup(root, &sh("bash"), &mut env, None).unwrap().unwrap();
assert_eq!(r.shell, Shell::Bash);
assert!(env["ENV"].ends_with("shell-integration/bash/ghostty.bash"));
assert!(
Path::new(root)
.join("shell-integration/nushell/vendor/autoload/ghostty.nu")
.is_file()
);
}
}
crates/ghostty-termio/src/terminfo/ghostty.rs
+1184
View File
@@ -0,0 +1,1184 @@
//! Ghostty's terminfo entry. Port of `terminfo/ghostty.zig`.
use super::source::{Capability, Source, Value};
/// Ghostty's terminfo entry.
pub const GHOSTTY: Source = Source {
names: &[
// We support the "xterm-" prefix because some poorly behaved programs
// use this to detect if the terminal supports 256 colors and other
// features.
// HACK: This is a hack on a hack...we use "xterm-ghostty" to prevent
// vim from breaking, and when we do this as the default we break
// tcell-based applications (lazygit, aerc, etc). tcell has a bug where
// the primary terminfo name must be the value of TERM.
// https://github.com/gdamore/tcell/pull/639 fixes the issue but is not
// merged yet. Consider switching these in the future.
"xterm-ghostty",
// The preferred name
"ghostty",
// Our "formal" name
"Ghostty",
],
// NOTE: These capabilities are super underdocumented and I'm not 100%
// I've got the list or my understanding of any in this list fully correct.
// As we learn more, please update the comments to better explain what
// anything means.
//
// I've marked some capabilities as "???" if I don't understand what they
// mean but I just assume I support since other modern terminals do. In
// this case, I'd love if anyone could help explain what this means and
// verify that Ghostty does indeed support it and if not we can fix it.
capabilities: &[
// automatic right margin -- when reaching the end of a line, text is
// wrapped to the next line.
Capability {
name: "am",
value: Value::Boolean,
},
// background color erase -- screen is erased with the background color
Capability {
name: "bce",
value: Value::Boolean,
},
// terminal can change color definitions, i.e. we can change the color
// palette.
Capability {
name: "ccc",
value: Value::Boolean,
},
// supports changing the window title.
Capability {
name: "hs",
value: Value::Boolean,
},
// terminal has a meta key
Capability {
name: "km",
value: Value::Boolean,
},
// terminal will not echo input on the screen on its own
Capability {
name: "mc5i",
value: Value::Boolean,
},
// safe to move (move what?) while in insert/standout mode. (???)
Capability {
name: "mir",
value: Value::Boolean,
},
Capability {
name: "msgr",
value: Value::Boolean,
},
// no pad character (???)
Capability {
name: "npc",
value: Value::Boolean,
},
// newline ignored after 80 cols (???)
Capability {
name: "xenl",
value: Value::Boolean,
},
// Terminal supports default colors
Capability {
name: "AX",
value: Value::Boolean,
},
// Tmux "truecolor" mode. Other programs also use this to detect
// if the terminal supports "truecolor". This means that the terminal
// can display 24-bit RGB colors.
Capability {
name: "Tc",
value: Value::Boolean,
},
// Colored underlines. https://sw.kovidgoyal.net/kitty/underlines/
Capability {
name: "Su",
value: Value::Boolean,
},
// Terminal supports a number of xterm extensions
Capability {
name: "XT",
value: Value::Boolean,
},
// Full keyboard support using Kitty's keyboard protocol:
// https://sw.kovidgoyal.net/kitty/keyboard-protocol/
Capability {
name: "fullkbd",
value: Value::Boolean,
},
// Number of colors in the color palette.
Capability {
name: "colors",
value: Value::Numeric(256),
},
// Number of columns in a line. Our terminal is variable width on
// Window resize but this appears to just be the value set by most
// terminals.
Capability {
name: "cols",
value: Value::Numeric(80),
},
// Initial tabstop interval.
Capability {
name: "it",
value: Value::Numeric(8),
},
// Number of lines on a page. Similar to cols this is variable width
// but this appears to be the value set by most terminals.
Capability {
name: "lines",
value: Value::Numeric(24),
},
// Number of color pairs on the screen.
Capability {
name: "pairs",
value: Value::Numeric(32767),
},
// Alternate character set. This is the VT100 alternate character set.
// I don't know what the value means, I copied this from Kitty and
// verified with some other terminals (looks similar).
Capability {
name: "acsc",
value: Value::String(
"++\\,\\,--..00``aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~",
),
},
// Curly, dashed, etc underlines
Capability {
name: "Smulx",
value: Value::String("\\E[4:%p1%dm"),
},
// Colored underlines
Capability {
name: "Setulc",
value: Value::String(
"\\E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m",
),
},
// Cursor styles
Capability {
name: "Ss",
value: Value::String("\\E[%p1%d q"),
},
// Cursor style reset
Capability {
name: "Se",
value: Value::String("\\E[2 q"),
},
// OSC 52 Clipboard
Capability {
name: "Ms",
value: Value::String("\\E]52;%p1%s;%p2%s\\007"),
},
// Synchronized output
Capability {
name: "Sync",
value: Value::String("\\E[?2026%?%p1%{1}%-%tl%eh%;"),
},
// Bracketed paste mode
Capability {
name: "BD",
value: Value::String("\\E[?2004l"),
},
Capability {
name: "BE",
value: Value::String("\\E[?2004h"),
},
// Bracketed paste start/end
Capability {
name: "PS",
value: Value::String("\\E[200~"),
},
Capability {
name: "PE",
value: Value::String("\\E[201~"),
},
// Mouse
Capability {
name: "XM",
value: Value::String("\\E[?1006;1000%?%p1%{1}%=%th%el%;"),
},
Capability {
name: "xm",
value: Value::String("\\E[<%i%p3%d;%p1%d;%p2%d;%?%p4%tM%em%;"),
},
// Secondary device attributes request / response
Capability {
name: "RV",
value: Value::String("\\E[>c"),
},
Capability {
name: "rv",
value: Value::String("\\E\\\\[[0-9]+;[0-9]+;[0-9]+c"),
},
// XTVERSION
Capability {
name: "XR",
value: Value::String("\\E[>0q"),
},
Capability {
name: "xr",
value: Value::String("\\EP>\\\\|[ -~]+a\\E\\\\"),
},
// DECSLRM (Left/Right Margins)
Capability {
name: "Enmg",
value: Value::String("\\E[?69h"),
},
Capability {
name: "Dsmg",
value: Value::String("\\E[?69l"),
},
Capability {
name: "Clmg",
value: Value::String("\\E[s"),
},
Capability {
name: "Cmg",
value: Value::String("\\E[%i%p1%d;%p2%ds"),
},
// Clear screen. E3 is the extension to clear scrollback
Capability {
name: "clear",
value: Value::String("\\E[H\\E[2J"),
},
Capability {
name: "E3",
value: Value::String("\\E[3J"),
},
// Focus reporting. Introduced in ncurses 6.4-20231028
Capability {
name: "fe",
value: Value::String("\\E[?1004h"),
},
Capability {
name: "fd",
value: Value::String("\\E[?1004l"),
},
Capability {
name: "kxIN",
value: Value::String("\\E[I"),
},
Capability {
name: "kxOUT",
value: Value::String("\\E[O"),
},
// These are all capabilities that should be pretty straightforward
// and map to input sequences.
Capability {
name: "bel",
value: Value::String("^G"),
},
Capability {
name: "blink",
value: Value::String("\\E[5m"),
},
Capability {
name: "bold",
value: Value::String("\\E[1m"),
},
Capability {
name: "cbt",
value: Value::String("\\E[Z"),
},
Capability {
name: "civis",
value: Value::String("\\E[?25l"),
},
Capability {
name: "cnorm",
value: Value::String("\\E[?12l\\E[?25h"),
},
Capability {
name: "cr",
value: Value::String("\\r"),
},
Capability {
name: "csr",
value: Value::String("\\E[%i%p1%d;%p2%dr"),
},
Capability {
name: "cub",
value: Value::String("\\E[%p1%dD"),
},
Capability {
name: "cub1",
value: Value::String("^H"),
},
Capability {
name: "cud",
value: Value::String("\\E[%p1%dB"),
},
Capability {
name: "cud1",
value: Value::String("^J"),
},
Capability {
name: "cuf",
value: Value::String("\\E[%p1%dC"),
},
Capability {
name: "cuf1",
value: Value::String("\\E[C"),
},
Capability {
name: "cup",
value: Value::String("\\E[%i%p1%d;%p2%dH"),
},
Capability {
name: "cuu",
value: Value::String("\\E[%p1%dA"),
},
Capability {
name: "cuu1",
value: Value::String("\\E[A"),
},
Capability {
name: "cvvis",
value: Value::String("\\E[?12;25h"),
},
Capability {
name: "dch",
value: Value::String("\\E[%p1%dP"),
},
Capability {
name: "dch1",
value: Value::String("\\E[P"),
},
Capability {
name: "dim",
value: Value::String("\\E[2m"),
},
Capability {
name: "dl",
value: Value::String("\\E[%p1%dM"),
},
Capability {
name: "dl1",
value: Value::String("\\E[M"),
},
Capability {
name: "dsl",
value: Value::String("\\E]2;\\007"),
},
Capability {
name: "ech",
value: Value::String("\\E[%p1%dX"),
},
Capability {
name: "ed",
value: Value::String("\\E[J"),
},
Capability {
name: "el",
value: Value::String("\\E[K"),
},
Capability {
name: "el1",
value: Value::String("\\E[1K"),
},
Capability {
name: "flash",
value: Value::String("\\E[?5h$<100/>\\E[?5l"),
},
Capability {
name: "fsl",
value: Value::String("^G"),
},
Capability {
name: "home",
value: Value::String("\\E[H"),
},
Capability {
name: "hpa",
value: Value::String("\\E[%i%p1%dG"),
},
Capability {
name: "ht",
value: Value::String("^I"),
},
Capability {
name: "hts",
value: Value::String("\\EH"),
},
Capability {
name: "ich",
value: Value::String("\\E[%p1%d@"),
},
Capability {
name: "ich1",
value: Value::String("\\E[@"),
},
Capability {
name: "il",
value: Value::String("\\E[%p1%dL"),
},
Capability {
name: "il1",
value: Value::String("\\E[L"),
},
Capability {
name: "ind",
value: Value::String("\\n"),
},
Capability {
name: "indn",
value: Value::String("\\E[%p1%dS"),
},
Capability {
name: "initc",
value: Value::String(
"\\E]4;%p1%d;rgb\\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\\E\\\\",
),
},
Capability {
name: "invis",
value: Value::String("\\E[8m"),
},
Capability {
name: "oc",
value: Value::String("\\E]104\\007"),
},
Capability {
name: "op",
value: Value::String("\\E[39;49m"),
},
Capability {
name: "rc",
value: Value::String("\\E8"),
},
Capability {
name: "rep",
value: Value::String("%p1%c\\E[%p2%{1}%-%db"),
},
Capability {
name: "rev",
value: Value::String("\\E[7m"),
},
Capability {
name: "ri",
value: Value::String("\\EM"),
},
Capability {
name: "rin",
value: Value::String("\\E[%p1%dT"),
},
Capability {
name: "ritm",
value: Value::String("\\E[23m"),
},
Capability {
name: "rmacs",
value: Value::String("\\E(B"),
},
Capability {
name: "rmam",
value: Value::String("\\E[?7l"),
},
Capability {
name: "rmcup",
value: Value::String("\\E[?1049l"),
},
Capability {
name: "rmir",
value: Value::String("\\E[4l"),
},
Capability {
name: "rmkx",
value: Value::String("\\E[?1l\\E>"),
},
Capability {
name: "rmso",
value: Value::String("\\E[27m"),
},
Capability {
name: "rmul",
value: Value::String("\\E[24m"),
},
Capability {
name: "rmxx",
value: Value::String("\\E[29m"),
},
Capability {
name: "setab",
value: Value::String(
"\\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m",
),
},
Capability {
name: "setaf",
value: Value::String(
"\\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m",
),
},
Capability {
name: "setrgbb",
value: Value::String("\\E[48:2:%p1%d:%p2%d:%p3%dm"),
},
Capability {
name: "setrgbf",
value: Value::String("\\E[38:2:%p1%d:%p2%d:%p3%dm"),
},
Capability {
name: "sgr",
value: Value::String(
"%?%p9%t\\E(0%e\\E(B%;\\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m",
),
},
Capability {
name: "sgr0",
value: Value::String("\\E(B\\E[m"),
},
Capability {
name: "sitm",
value: Value::String("\\E[3m"),
},
Capability {
name: "smacs",
value: Value::String("\\E(0"),
},
Capability {
name: "smam",
value: Value::String("\\E[?7h"),
},
Capability {
name: "smcup",
value: Value::String("\\E[?1049h"),
},
Capability {
name: "smir",
value: Value::String("\\E[4h"),
},
Capability {
name: "smkx",
value: Value::String("\\E[?1h\\E="),
},
Capability {
name: "smso",
value: Value::String("\\E[7m"),
},
Capability {
name: "smul",
value: Value::String("\\E[4m"),
},
Capability {
name: "smxx",
value: Value::String("\\E[9m"),
},
Capability {
name: "tbc",
value: Value::String("\\E[3g"),
},
Capability {
name: "tsl",
value: Value::String("\\E]2;"),
},
Capability {
name: "u6",
value: Value::String("\\E[%i%d;%dR"),
},
Capability {
name: "u7",
value: Value::String("\\E[6n"),
},
Capability {
name: "u8",
value: Value::String("\\E[?%[;0123456789]c"),
},
Capability {
name: "u9",
value: Value::String("\\E[c"),
},
Capability {
name: "vpa",
value: Value::String("\\E[%i%p1%dd"),
},
//-----------------------------------------------------------
// Completely unvalidated entries that are blindly copied from
// other terminals (Kitty, Wezterm, Alacritty) and may or may not
// actually work with Ghostty. todo is to validate these!
Capability {
name: "kDC",
value: Value::String("\\E[3;2~"),
},
Capability {
name: "kDC3",
value: Value::String("\\E[3;3~"),
},
Capability {
name: "kDC4",
value: Value::String("\\E[3;4~"),
},
Capability {
name: "kDC5",
value: Value::String("\\E[3;5~"),
},
Capability {
name: "kDC6",
value: Value::String("\\E[3;6~"),
},
Capability {
name: "kDC7",
value: Value::String("\\E[3;7~"),
},
Capability {
name: "kDN",
value: Value::String("\\E[1;2B"),
},
Capability {
name: "kDN3",
value: Value::String("\\E[1;3B"),
},
Capability {
name: "kDN4",
value: Value::String("\\E[1;4B"),
},
Capability {
name: "kDN5",
value: Value::String("\\E[1;5B"),
},
Capability {
name: "kDN6",
value: Value::String("\\E[1;6B"),
},
Capability {
name: "kDN7",
value: Value::String("\\E[1;7B"),
},
Capability {
name: "kEND",
value: Value::String("\\E[1;2F"),
},
Capability {
name: "kEND3",
value: Value::String("\\E[1;3F"),
},
Capability {
name: "kEND4",
value: Value::String("\\E[1;4F"),
},
Capability {
name: "kEND5",
value: Value::String("\\E[1;5F"),
},
Capability {
name: "kEND6",
value: Value::String("\\E[1;6F"),
},
Capability {
name: "kEND7",
value: Value::String("\\E[1;7F"),
},
Capability {
name: "kHOM",
value: Value::String("\\E[1;2H"),
},
Capability {
name: "kHOM3",
value: Value::String("\\E[1;3H"),
},
Capability {
name: "kHOM4",
value: Value::String("\\E[1;4H"),
},
Capability {
name: "kHOM5",
value: Value::String("\\E[1;5H"),
},
Capability {
name: "kHOM6",
value: Value::String("\\E[1;6H"),
},
Capability {
name: "kHOM7",
value: Value::String("\\E[1;7H"),
},
Capability {
name: "kIC",
value: Value::String("\\E[2;2~"),
},
Capability {
name: "kIC3",
value: Value::String("\\E[2;3~"),
},
Capability {
name: "kIC4",
value: Value::String("\\E[2;4~"),
},
Capability {
name: "kIC5",
value: Value::String("\\E[2;5~"),
},
Capability {
name: "kIC6",
value: Value::String("\\E[2;6~"),
},
Capability {
name: "kIC7",
value: Value::String("\\E[2;7~"),
},
Capability {
name: "kLFT",
value: Value::String("\\E[1;2D"),
},
Capability {
name: "kLFT3",
value: Value::String("\\E[1;3D"),
},
Capability {
name: "kLFT4",
value: Value::String("\\E[1;4D"),
},
Capability {
name: "kLFT5",
value: Value::String("\\E[1;5D"),
},
Capability {
name: "kLFT6",
value: Value::String("\\E[1;6D"),
},
Capability {
name: "kLFT7",
value: Value::String("\\E[1;7D"),
},
Capability {
name: "kNXT",
value: Value::String("\\E[6;2~"),
},
Capability {
name: "kNXT3",
value: Value::String("\\E[6;3~"),
},
Capability {
name: "kNXT4",
value: Value::String("\\E[6;4~"),
},
Capability {
name: "kNXT5",
value: Value::String("\\E[6;5~"),
},
Capability {
name: "kNXT6",
value: Value::String("\\E[6;6~"),
},
Capability {
name: "kNXT7",
value: Value::String("\\E[6;7~"),
},
Capability {
name: "kPRV",
value: Value::String("\\E[5;2~"),
},
Capability {
name: "kPRV3",
value: Value::String("\\E[5;3~"),
},
Capability {
name: "kPRV4",
value: Value::String("\\E[5;4~"),
},
Capability {
name: "kPRV5",
value: Value::String("\\E[5;5~"),
},
Capability {
name: "kPRV6",
value: Value::String("\\E[5;6~"),
},
Capability {
name: "kPRV7",
value: Value::String("\\E[5;7~"),
},
Capability {
name: "kRIT",
value: Value::String("\\E[1;2C"),
},
Capability {
name: "kRIT3",
value: Value::String("\\E[1;3C"),
},
Capability {
name: "kRIT4",
value: Value::String("\\E[1;4C"),
},
Capability {
name: "kRIT5",
value: Value::String("\\E[1;5C"),
},
Capability {
name: "kRIT6",
value: Value::String("\\E[1;6C"),
},
Capability {
name: "kRIT7",
value: Value::String("\\E[1;7C"),
},
Capability {
name: "kUP",
value: Value::String("\\E[1;2A"),
},
Capability {
name: "kUP3",
value: Value::String("\\E[1;3A"),
},
Capability {
name: "kUP4",
value: Value::String("\\E[1;4A"),
},
Capability {
name: "kUP5",
value: Value::String("\\E[1;5A"),
},
Capability {
name: "kUP6",
value: Value::String("\\E[1;6A"),
},
Capability {
name: "kUP7",
value: Value::String("\\E[1;7A"),
},
Capability {
name: "kbs",
value: Value::String("^?"),
},
Capability {
name: "kcbt",
value: Value::String("\\E[Z"),
},
Capability {
name: "kcub1",
value: Value::String("\\EOD"),
},
Capability {
name: "kcud1",
value: Value::String("\\EOB"),
},
Capability {
name: "kcuf1",
value: Value::String("\\EOC"),
},
Capability {
name: "kcuu1",
value: Value::String("\\EOA"),
},
Capability {
name: "kdch1",
value: Value::String("\\E[3~"),
},
Capability {
name: "kend",
value: Value::String("\\EOF"),
},
Capability {
name: "kent",
value: Value::String("\\EOM"),
},
Capability {
name: "kf1",
value: Value::String("\\EOP"),
},
Capability {
name: "kf10",
value: Value::String("\\E[21~"),
},
Capability {
name: "kf11",
value: Value::String("\\E[23~"),
},
Capability {
name: "kf12",
value: Value::String("\\E[24~"),
},
Capability {
name: "kf13",
value: Value::String("\\E[1;2P"),
},
Capability {
name: "kf14",
value: Value::String("\\E[1;2Q"),
},
Capability {
name: "kf15",
value: Value::String("\\E[1;2R"),
},
Capability {
name: "kf16",
value: Value::String("\\E[1;2S"),
},
Capability {
name: "kf17",
value: Value::String("\\E[15;2~"),
},
Capability {
name: "kf18",
value: Value::String("\\E[17;2~"),
},
Capability {
name: "kf19",
value: Value::String("\\E[18;2~"),
},
Capability {
name: "kf2",
value: Value::String("\\EOQ"),
},
Capability {
name: "kf20",
value: Value::String("\\E[19;2~"),
},
Capability {
name: "kf21",
value: Value::String("\\E[20;2~"),
},
Capability {
name: "kf22",
value: Value::String("\\E[21;2~"),
},
Capability {
name: "kf23",
value: Value::String("\\E[23;2~"),
},
Capability {
name: "kf24",
value: Value::String("\\E[24;2~"),
},
Capability {
name: "kf25",
value: Value::String("\\E[1;5P"),
},
Capability {
name: "kf26",
value: Value::String("\\E[1;5Q"),
},
Capability {
name: "kf27",
value: Value::String("\\E[1;5R"),
},
Capability {
name: "kf28",
value: Value::String("\\E[1;5S"),
},
Capability {
name: "kf29",
value: Value::String("\\E[15;5~"),
},
Capability {
name: "kf3",
value: Value::String("\\EOR"),
},
Capability {
name: "kf30",
value: Value::String("\\E[17;5~"),
},
Capability {
name: "kf31",
value: Value::String("\\E[18;5~"),
},
Capability {
name: "kf32",
value: Value::String("\\E[19;5~"),
},
Capability {
name: "kf33",
value: Value::String("\\E[20;5~"),
},
Capability {
name: "kf34",
value: Value::String("\\E[21;5~"),
},
Capability {
name: "kf35",
value: Value::String("\\E[23;5~"),
},
Capability {
name: "kf36",
value: Value::String("\\E[24;5~"),
},
Capability {
name: "kf37",
value: Value::String("\\E[1;6P"),
},
Capability {
name: "kf38",
value: Value::String("\\E[1;6Q"),
},
Capability {
name: "kf39",
value: Value::String("\\E[1;6R"),
},
Capability {
name: "kf4",
value: Value::String("\\EOS"),
},
Capability {
name: "kf40",
value: Value::String("\\E[1;6S"),
},
Capability {
name: "kf41",
value: Value::String("\\E[15;6~"),
},
Capability {
name: "kf42",
value: Value::String("\\E[17;6~"),
},
Capability {
name: "kf43",
value: Value::String("\\E[18;6~"),
},
Capability {
name: "kf44",
value: Value::String("\\E[19;6~"),
},
Capability {
name: "kf45",
value: Value::String("\\E[20;6~"),
},
Capability {
name: "kf46",
value: Value::String("\\E[21;6~"),
},
Capability {
name: "kf47",
value: Value::String("\\E[23;6~"),
},
Capability {
name: "kf48",
value: Value::String("\\E[24;6~"),
},
Capability {
name: "kf49",
value: Value::String("\\E[1;3P"),
},
Capability {
name: "kf5",
value: Value::String("\\E[15~"),
},
Capability {
name: "kf50",
value: Value::String("\\E[1;3Q"),
},
Capability {
name: "kf51",
value: Value::String("\\E[1;3R"),
},
Capability {
name: "kf52",
value: Value::String("\\E[1;3S"),
},
Capability {
name: "kf53",
value: Value::String("\\E[15;3~"),
},
Capability {
name: "kf54",
value: Value::String("\\E[17;3~"),
},
Capability {
name: "kf55",
value: Value::String("\\E[18;3~"),
},
Capability {
name: "kf56",
value: Value::String("\\E[19;3~"),
},
Capability {
name: "kf57",
value: Value::String("\\E[20;3~"),
},
Capability {
name: "kf58",
value: Value::String("\\E[21;3~"),
},
Capability {
name: "kf59",
value: Value::String("\\E[23;3~"),
},
Capability {
name: "kf6",
value: Value::String("\\E[17~"),
},
Capability {
name: "kf60",
value: Value::String("\\E[24;3~"),
},
Capability {
name: "kf61",
value: Value::String("\\E[1;4P"),
},
Capability {
name: "kf62",
value: Value::String("\\E[1;4Q"),
},
Capability {
name: "kf63",
value: Value::String("\\E[1;4R"),
},
Capability {
name: "kf7",
value: Value::String("\\E[18~"),
},
Capability {
name: "kf8",
value: Value::String("\\E[19~"),
},
Capability {
name: "kf9",
value: Value::String("\\E[20~"),
},
Capability {
name: "khome",
value: Value::String("\\EOH"),
},
Capability {
name: "kich1",
value: Value::String("\\E[2~"),
},
Capability {
name: "kind",
value: Value::String("\\E[1;2B"),
},
Capability {
name: "kmous",
value: Value::String("\\E[<"),
},
Capability {
name: "knp",
value: Value::String("\\E[6~"),
},
Capability {
name: "kpp",
value: Value::String("\\E[5~"),
},
Capability {
name: "kri",
value: Value::String("\\E[1;2A"),
},
Capability {
name: "rs1",
value: Value::String("\\E]\\E\\\\\\Ec"),
},
Capability {
name: "sc",
value: Value::String("\\E7"),
},
],
};
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn encode() {
let mut buf = Vec::new();
GHOSTTY.encode(&mut buf).unwrap();
assert!(!buf.is_empty());
let s = String::from_utf8(buf).unwrap();
assert!(s.starts_with("xterm-ghostty|ghostty|Ghostty,\n\tam,\n\tbce,\n"));
assert!(s.ends_with("\tsc=\\E7,\n"));
}
}
crates/ghostty-termio/src/terminfo/mod.rs
+14
View File
@@ -0,0 +1,14 @@
//! Package terminfo provides functionality related to terminfo/termcap files.
//!
//! At the time of writing this comment, the focus is on generating terminfo
//! files so that we can maintain our terminfo in Rust instead of hand-writing
//! the archaic (imo) terminfo format by hand. But eventually we may want to
//! extract this into a more full-featured library on its own.
//!
//! Port of `terminfo/main.zig`.
pub mod ghostty;
pub mod source;
pub use ghostty::GHOSTTY as ghostty;
pub use source::Source;
crates/ghostty-termio/src/terminfo/source.rs
+214
View File
@@ -0,0 +1,214 @@
//! Terminfo source format. This can be used to encode terminfo files.
//! This cannot parse terminfo source files yet because it isn't something
//! I need to do but this can be added later.
//!
//! Background: <https://invisible-island.net/ncurses/man/terminfo.5.html>
//!
//! Port of `terminfo/Source.zig`.
use std::collections::HashMap;
use std::io;
/// A terminfo source description.
#[derive(Debug, Clone, Copy)]
pub struct Source {
/// The set of names for the terminal. These match the TERM environment
/// variable and are used to look up this terminal. Historically, the final
/// name in the list was the most common name for the terminal and contains
/// spaces and other characters. See terminfo(5) for details.
pub names: &'static [&'static str],
/// The set of capabilities in this terminfo file.
pub capabilities: &'static [Capability],
}
/// A capability in a terminfo file. This also includes any "use" capabilities
/// since they behave just like other capabilities as documented in terminfo(5).
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Capability {
/// The name of capability. This is the "Cap-name" value in terminfo(5).
pub name: &'static str,
pub value: Value,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Value {
/// Canceled value, i.e. suffixed with @
Canceled,
/// Boolean values are always true if they exist so there is no value.
Boolean,
/// Numeric values are always "unsigned decimal integers". The size
/// of the integer is unspecified in terminfo(5). 32-bits is a common
/// integer size but this may be wrong.
Numeric(u32),
String(&'static str),
}
impl Source {
/// Encode as a terminfo source file. The encoding is always done in a
/// human-readable format with whitespace. Fields are always written in the
/// order of the slices on this struct; this will not do any reordering.
pub fn encode<W: io::Write>(&self, writer: &mut W) -> io::Result<()> {
// Encode the names in the order specified
for (i, name) in self.names.iter().enumerate() {
if i != 0 {
writer.write_all(b"|")?;
}
writer.write_all(name.as_bytes())?;
}
writer.write_all(b",\n")?;
// Encode each of the capabilities in the order specified
for cap in self.capabilities {
writer.write_all(b"\t")?;
writer.write_all(cap.name.as_bytes())?;
match cap.value {
Value::Canceled => writer.write_all(b"@")?,
Value::Boolean => {}
Value::Numeric(v) => write!(writer, "#{v}")?,
Value::String(v) => write!(writer, "={v}")?,
}
writer.write_all(b",\n")?;
}
Ok(())
}
/// Encode to an owned `String`.
pub fn encode_to_string(&self) -> String {
let mut buf = Vec::new();
// Writing to a Vec cannot fail.
let _ = self.encode(&mut buf);
String::from_utf8_lossy(&buf).into_owned()
}
/// Returns a map for all of the capabilities in this terminfo. The key is
/// the hex-encoded (uppercase) capability name and the value is what
/// should be sent as a response to XTGETTCAP.
/// Important: the value is the FULL response including the escape
/// sequences.
///
/// Panics on canceled capabilities (unsupported, like the Zig
/// `@compileError`) and on `^` control characters that are not at the
/// start of a string.
pub fn xtgettcap_map(&self) -> HashMap<String, String> {
let mut kvs: Vec<(String, String)> = Vec::with_capacity(self.capabilities.len() + 3);
// We have all of our capabilities plus TN, Co, and RGB which aren't
// in the capabilities list but are query-able.
kvs.push(("TN".into(), self.names[0].into()));
kvs.push(("Co".into(), "256".into()));
kvs.push(("RGB".into(), "8".into()));
for cap in self.capabilities {
let value = match cap.value {
Value::Canceled => panic!("canceled not handled yet"),
Value::Boolean => String::new(),
Value::String(v) => {
// If a string contains parameters, then we do not escape
// anything within the string. I BELIEVE the history here is
// xterm initially only supported specific capabilities and
// none had parameters so it returned the tcap encoded form.
// Later, Kitty added support for more capabilities some of
// which have parameters. But Kitty returned them in
// terminfo source format. So we need to handle both cases.
if v.contains('%') {
v.to_string()
} else {
// No-parameters. Encode and return.
// First replace \E with the escape char (0x1B)
let mut result = v.replace("\\E", "\x1b");
// Replace '^' with the control char version of that char.
while let Some(idx) = result.find('^') {
assert!(idx == 0, "handle control-char in middle of string");
let c = result.as_bytes()[idx + 1];
let replacement = match c {
b'?' => 0x7F, // DEL, special cased from ncurses
c => c - 64,
};
let pat = result[idx..idx + 2].to_string();
result = result.replace(&pat, &char::from(replacement).to_string());
}
result
}
}
Value::Numeric(v) => v.to_string(),
};
kvs.push((cap.name.to_string(), value));
}
// Now go through and convert them all to hex-encoded strings.
kvs.into_iter()
.map(|(k, v)| {
let key = hexencode(k.as_bytes());
let out = if v.is_empty() {
format!("\x1bP1+r{key}\x1b\\")
} else {
format!("\x1bP1+r{key}={}\x1b\\", hexencode(v.as_bytes()))
};
(key, out)
})
.collect()
}
}
/// Uppercase hex encoding (`std.fmt.bytesToHex(.., .upper)`).
pub fn hexencode(input: &[u8]) -> String {
use std::fmt::Write;
let mut s = String::with_capacity(input.len() * 2);
for b in input {
let _ = write!(s, "{b:02X}");
}
s
}
#[cfg(test)]
mod tests {
use super::*;
const fn cap(name: &'static str, value: Value) -> Capability {
Capability { name, value }
}
#[test]
fn xtgettcap_map() {
static SRC: Source = Source {
names: &["ghostty", "xterm-ghostty", "Ghostty"],
capabilities: &[
cap("am", Value::Boolean),
cap("colors", Value::Numeric(256)),
cap("kx", Value::String("^?")),
cap("kbs", Value::String("^H")),
cap("kf1", Value::String("\\EOP")),
cap("Smulx", Value::String("\\E[4:%p1%dm")),
],
};
let map = SRC.xtgettcap_map();
assert_eq!("\x1bP1+r616D\x1b\\", map[&hexencode(b"am")]);
assert_eq!("\x1bP1+r6B78=7F\x1b\\", map[&hexencode(b"kx")]);
assert_eq!("\x1bP1+r6B6273=08\x1b\\", map[&hexencode(b"kbs")]);
assert_eq!("\x1bP1+r6B6631=1B4F50\x1b\\", map[&hexencode(b"kf1")]);
assert_eq!(
"\x1bP1+r536D756C78=5C455B343A25703125646D\x1b\\",
map[&hexencode(b"Smulx")]
);
}
#[test]
fn encode() {
static SRC: Source = Source {
names: &["ghostty", "xterm-ghostty", "Ghostty"],
capabilities: &[
cap("am", Value::Boolean),
cap("ccc", Value::Canceled),
cap("colors", Value::Numeric(256)),
cap("bel", Value::String("^G")),
],
};
let expected = "ghostty|xterm-ghostty|Ghostty,\n\tam,\n\tccc@,\n\tcolors#256,\n\tbel=^G,\n";
assert_eq!(expected, SRC.encode_to_string());
}
}
crates/ghostty-termio/tests/data/xterm-ghostty.terminfo
+269
View File
@@ -0,0 +1,269 @@
xterm-ghostty|ghostty|Ghostty,
am,
bce,
ccc,
hs,
km,
mc5i,
mir,
msgr,
npc,
xenl,
AX,
Tc,
Su,
XT,
fullkbd,
colors#256,
cols#80,
it#8,
lines#24,
pairs#32767,
acsc=++\,\,--..00``aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
Smulx=\E[4:%p1%dm,
Setulc=\E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m,
Ss=\E[%p1%d q,
Se=\E[2 q,
Ms=\E]52;%p1%s;%p2%s\007,
Sync=\E[?2026%?%p1%{1}%-%tl%eh%;,
BD=\E[?2004l,
BE=\E[?2004h,
PS=\E[200~,
PE=\E[201~,
XM=\E[?1006;1000%?%p1%{1}%=%th%el%;,
xm=\E[<%i%p3%d;%p1%d;%p2%d;%?%p4%tM%em%;,
RV=\E[>c,
rv=\E\\[[0-9]+;[0-9]+;[0-9]+c,
XR=\E[>0q,
xr=\EP>\\|[ -~]+a\E\\,
Enmg=\E[?69h,
Dsmg=\E[?69l,
Clmg=\E[s,
Cmg=\E[%i%p1%d;%p2%ds,
clear=\E[H\E[2J,
E3=\E[3J,
fe=\E[?1004h,
fd=\E[?1004l,
kxIN=\E[I,
kxOUT=\E[O,
bel=^G,
blink=\E[5m,
bold=\E[1m,
cbt=\E[Z,
civis=\E[?25l,
cnorm=\E[?12l\E[?25h,
cr=\r,
csr=\E[%i%p1%d;%p2%dr,
cub=\E[%p1%dD,
cub1=^H,
cud=\E[%p1%dB,
cud1=^J,
cuf=\E[%p1%dC,
cuf1=\E[C,
cup=\E[%i%p1%d;%p2%dH,
cuu=\E[%p1%dA,
cuu1=\E[A,
cvvis=\E[?12;25h,
dch=\E[%p1%dP,
dch1=\E[P,
dim=\E[2m,
dl=\E[%p1%dM,
dl1=\E[M,
dsl=\E]2;\007,
ech=\E[%p1%dX,
ed=\E[J,
el=\E[K,
el1=\E[1K,
flash=\E[?5h$<100/>\E[?5l,
fsl=^G,
home=\E[H,
hpa=\E[%i%p1%dG,
ht=^I,
hts=\EH,
ich=\E[%p1%d@,
ich1=\E[@,
il=\E[%p1%dL,
il1=\E[L,
ind=\n,
indn=\E[%p1%dS,
initc=\E]4;%p1%d;rgb\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\\,
invis=\E[8m,
oc=\E]104\007,
op=\E[39;49m,
rc=\E8,
rep=%p1%c\E[%p2%{1}%-%db,
rev=\E[7m,
ri=\EM,
rin=\E[%p1%dT,
ritm=\E[23m,
rmacs=\E(B,
rmam=\E[?7l,
rmcup=\E[?1049l,
rmir=\E[4l,
rmkx=\E[?1l\E>,
rmso=\E[27m,
rmul=\E[24m,
rmxx=\E[29m,
setab=\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m,
setaf=\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m,
setrgbb=\E[48:2:%p1%d:%p2%d:%p3%dm,
setrgbf=\E[38:2:%p1%d:%p2%d:%p3%dm,
sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
sgr0=\E(B\E[m,
sitm=\E[3m,
smacs=\E(0,
smam=\E[?7h,
smcup=\E[?1049h,
smir=\E[4h,
smkx=\E[?1h\E=,
smso=\E[7m,
smul=\E[4m,
smxx=\E[9m,
tbc=\E[3g,
tsl=\E]2;,
u6=\E[%i%d;%dR,
u7=\E[6n,
u8=\E[?%[;0123456789]c,
u9=\E[c,
vpa=\E[%i%p1%dd,
kDC=\E[3;2~,
kDC3=\E[3;3~,
kDC4=\E[3;4~,
kDC5=\E[3;5~,
kDC6=\E[3;6~,
kDC7=\E[3;7~,
kDN=\E[1;2B,
kDN3=\E[1;3B,
kDN4=\E[1;4B,
kDN5=\E[1;5B,
kDN6=\E[1;6B,
kDN7=\E[1;7B,
kEND=\E[1;2F,
kEND3=\E[1;3F,
kEND4=\E[1;4F,
kEND5=\E[1;5F,
kEND6=\E[1;6F,
kEND7=\E[1;7F,
kHOM=\E[1;2H,
kHOM3=\E[1;3H,
kHOM4=\E[1;4H,
kHOM5=\E[1;5H,
kHOM6=\E[1;6H,
kHOM7=\E[1;7H,
kIC=\E[2;2~,
kIC3=\E[2;3~,
kIC4=\E[2;4~,
kIC5=\E[2;5~,
kIC6=\E[2;6~,
kIC7=\E[2;7~,
kLFT=\E[1;2D,
kLFT3=\E[1;3D,
kLFT4=\E[1;4D,
kLFT5=\E[1;5D,
kLFT6=\E[1;6D,
kLFT7=\E[1;7D,
kNXT=\E[6;2~,
kNXT3=\E[6;3~,
kNXT4=\E[6;4~,
kNXT5=\E[6;5~,
kNXT6=\E[6;6~,
kNXT7=\E[6;7~,
kPRV=\E[5;2~,
kPRV3=\E[5;3~,
kPRV4=\E[5;4~,
kPRV5=\E[5;5~,
kPRV6=\E[5;6~,
kPRV7=\E[5;7~,
kRIT=\E[1;2C,
kRIT3=\E[1;3C,
kRIT4=\E[1;4C,
kRIT5=\E[1;5C,
kRIT6=\E[1;6C,
kRIT7=\E[1;7C,
kUP=\E[1;2A,
kUP3=\E[1;3A,
kUP4=\E[1;4A,
kUP5=\E[1;5A,
kUP6=\E[1;6A,
kUP7=\E[1;7A,
kbs=^?,
kcbt=\E[Z,
kcub1=\EOD,
kcud1=\EOB,
kcuf1=\EOC,
kcuu1=\EOA,
kdch1=\E[3~,
kend=\EOF,
kent=\EOM,
kf1=\EOP,
kf10=\E[21~,
kf11=\E[23~,
kf12=\E[24~,
kf13=\E[1;2P,
kf14=\E[1;2Q,
kf15=\E[1;2R,
kf16=\E[1;2S,
kf17=\E[15;2~,
kf18=\E[17;2~,
kf19=\E[18;2~,
kf2=\EOQ,
kf20=\E[19;2~,
kf21=\E[20;2~,
kf22=\E[21;2~,
kf23=\E[23;2~,
kf24=\E[24;2~,
kf25=\E[1;5P,
kf26=\E[1;5Q,
kf27=\E[1;5R,
kf28=\E[1;5S,
kf29=\E[15;5~,
kf3=\EOR,
kf30=\E[17;5~,
kf31=\E[18;5~,
kf32=\E[19;5~,
kf33=\E[20;5~,
kf34=\E[21;5~,
kf35=\E[23;5~,
kf36=\E[24;5~,
kf37=\E[1;6P,
kf38=\E[1;6Q,
kf39=\E[1;6R,
kf4=\EOS,
kf40=\E[1;6S,
kf41=\E[15;6~,
kf42=\E[17;6~,
kf43=\E[18;6~,
kf44=\E[19;6~,
kf45=\E[20;6~,
kf46=\E[21;6~,
kf47=\E[23;6~,
kf48=\E[24;6~,
kf49=\E[1;3P,
kf5=\E[15~,
kf50=\E[1;3Q,
kf51=\E[1;3R,
kf52=\E[1;3S,
kf53=\E[15;3~,
kf54=\E[17;3~,
kf55=\E[18;3~,
kf56=\E[19;3~,
kf57=\E[20;3~,
kf58=\E[21;3~,
kf59=\E[23;3~,
kf6=\E[17~,
kf60=\E[24;3~,
kf61=\E[1;4P,
kf62=\E[1;4Q,
kf63=\E[1;4R,
kf7=\E[18~,
kf8=\E[19~,
kf9=\E[20~,
khome=\EOH,
kich1=\E[2~,
kind=\E[1;2B,
kmous=\E[<,
knp=\E[6~,
kpp=\E[5~,
kri=\E[1;2A,
rs1=\E]\E\\\Ec,
sc=\E7,
crates/ghostty-termio/tests/pty_command.rs
+100
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@@ -0,0 +1,100 @@
//! Integration test: run a real child attached to a pty.
#![allow(clippy::unwrap_used)]
use std::{
fs::File,
io::Read,
os::fd::{AsRawFd, OwnedFd},
};
use ghostty_termio::{Command, Pty, Winsize, command::Exit, pty::child_pre_exec};
fn dup(fd: &OwnedFd) -> OwnedFd {
fd.try_clone().unwrap()
}
/// Read from the master until the child side hangs up (EIO on Linux).
fn read_until_hangup(master: OwnedFd) -> String {
let mut f = File::from(master);
let mut out = Vec::new();
let mut buf = [0u8; 4096];
loop {
match f.read(&mut buf) {
Ok(0) | Err(_) => break,
Ok(n) => out.extend_from_slice(&buf[..n]),
}
}
String::from_utf8_lossy(&out).into_owned()
}
fn run_on_pty(script: &str, size: Winsize) -> (String, Exit) {
let mut pty = Pty::open(size).unwrap();
let slave = pty.slave.take().unwrap();
let (master_raw, _) = pty.raw_fds();
let slave_raw = slave.as_raw_fd();
let mut cmd = Command::new("/bin/sh", &["/bin/sh", "-c", script]);
cmd.stdin = Some(dup(&slave));
cmd.stdout = Some(dup(&slave));
cmd.stderr = Some(dup(&slave));
cmd.os_pre_exec = Some(Box::new(move || {
// Make the slave our controlling terminal in a new session; this
// also closes the master/slave descriptors in the child.
match child_pre_exec(master_raw, slave_raw) {
Ok(()) => None,
Err(_) => Some(1),
}
}));
cmd.start().unwrap();
// Close our copies of the slave so we see a hangup when the child exits.
drop(cmd.stdin.take());
drop(cmd.stdout.take());
drop(cmd.stderr.take());
drop(slave);
let exit = cmd.wait(true).unwrap();
let out = read_until_hangup(pty.master);
(out, exit)
}
#[test]
fn echo_and_stty_size_on_pty() {
let size = Winsize {
ws_row: 31,
ws_col: 97,
ws_xpixel: 0,
ws_ypixel: 0,
};
let (out, exit) = run_on_pty("echo hi; stty size", size);
assert_eq!(exit, Exit::Exited(0));
// A pty translates \n to \r\n.
assert_eq!(out, "hi\r\n31 97\r\n");
}
#[test]
fn child_has_controlling_terminal() {
// `tty` succeeds only with a terminal on stdin; /dev/tty only opens when
// we have a controlling terminal (TIOCSCTTY).
let (out, exit) = run_on_pty(
"tty >/dev/null && echo tty; echo x > /dev/tty && echo ctty",
Winsize::default(),
);
assert_eq!(exit, Exit::Exited(0));
assert!(out.contains("tty\r\n"), "{out:?}");
assert!(out.contains("ctty\r\n"), "{out:?}");
}
#[test]
fn resize_is_visible_to_child() {
let size = Winsize {
ws_row: 10,
ws_col: 20,
ws_xpixel: 0,
ws_ypixel: 0,
};
let (out, _) = run_on_pty("stty size", size);
assert_eq!(out, "10 20\r\n");
}
crates/ghostty-termio/tests/terminfo_golden.rs
+34
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@@ -0,0 +1,34 @@
//! The terminfo source emitted by the Rust port must be byte-identical to the
#![allow(clippy::unwrap_used)]
//! output of the Zig `terminfo/ghostty.zig` `encode` (golden file generated
//! with the Zig reference implementation).
use ghostty_termio::terminfo;
#[test]
fn terminfo_source_matches_zig_output() {
let expected = include_str!("data/xterm-ghostty.terminfo");
assert_eq!(expected, terminfo::ghostty.encode_to_string());
}
#[test]
fn terminfo_compiles_with_tic_if_available() {
let Ok(dir) = std::env::var("CARGO_TARGET_TMPDIR") else {
return;
};
let src = std::path::Path::new(&dir).join("xterm-ghostty.src");
std::fs::write(&src, terminfo::ghostty.encode_to_string()).unwrap();
let out = std::path::Path::new(&dir).join("terminfo-out");
let _ = std::fs::create_dir_all(&out);
let Ok(status) = std::process::Command::new("tic")
.arg("-x")
.arg("-o")
.arg(&out)
.arg(&src)
.status()
else {
return; // tic not installed
};
assert!(status.success());
}
docs/rewrite/notes/ghostty-termio-IO1.md
+72
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@@ -0,0 +1,72 @@
# ghostty-termio notes (agent IO1)
Linux only. Crate lints: `unsafe_code = "deny"` (workspace clippy table copied
into the crate's `[lints.clippy]`); `#[allow(unsafe_code)]` only on tiny items
with `// SAFETY:` (fork, execvpe, _exit, close, sigaction, borrow_raw).
## File -> module
- `pty.zig` -> `pty.rs` (`Pty`, `Winsize`, `Mode`, `child_pre_exec(master, slave)`)
- `Command.zig` (+ `apprt/gtk/{pre_exec,post_fork}.zig` cgroup logic, `cgroup.zig` fmtScope)
-> `command.rs`
- `termio/shell_integration.zig` -> `shell_integration.rs`
- `terminfo/{main,Source,ghostty}.zig` -> `terminfo/{mod,source,ghostty}.rs`
(`terminfo::ghostty` is a `const Source`; `encode`, `encode_to_string`,
`xtgettcap_map`). Output verified byte-identical with the Zig `encode` (golden
file `tests/data/xterm-ghostty.terminfo`, generated with `zig run`).
- Shell scripts copied verbatim to `resources/shell-integration/` (workspace root).
## Not ported (deferred; need ghostty-terminal / renderer)
Exec.zig, Termio.zig, Thread.zig, stream_handler.zig, mailbox.zig, message.zig,
backend.zig, Options.zig (all reference `terminal`/`renderer`/`apprt` types).
## Design / deviations
- Deps `ghostty-config` and `ghostty-terminal` REMOVED from Cargo.toml (note in file).
Deps: ghostty-os, rustix (pty, termios, process, fs, stdio), nix (signal), libc, log, thiserror.
- `Command` does its own `fork` + `libc::execvpe` (not std::process::Command) so the
child setup is exactly Ghostty's: dup2 stdio (CLOEXEC cleared), best-effort chdir
(failure ignored), restore rlimit (`restore_rlimit: Option<Rlimit>` replaces
`global_state.rlimits`), `os_pre_exec` then `rt_pre_exec` hooks (`Fn() -> Option<u8>`,
`Some(code)` => `_exit(code)`; panics => exit 1), then execvpe. All allocation happens
before fork. Exec failure: child prints the same "Requested executable not found" message
(other errors: `errno=N` instead of the Zig error name) to stderr and `_exit(1)`; there
is no `ExecFailedInChild` error because the child can never return into caller code.
`exit_immediately(code)` is provided for hooks that want to exit (use instead of
`std::process::exit`).
- Signal mask: Zig never reset the mask explicitly in Command either; only `Pty::child_pre_exec`
resets 13 signal dispositions to SIG_DFL (same list as Zig), then setsid + TIOCSCTTY and
closes slave+master. Close-all-fds is not done (Zig doesn't either; master is CLOEXEC).
- stdio fields are `Option<OwnedFd>` (callers pass `try_clone()`d fds); `wait(block)` returns
`Result<Exit, Errno>`; non-blocking wait loops until a status is available (as Zig, with a
`yield_now`). `setData/getData` dropped (closures capture state). Empty `args` => argv =
[path] (what the Zig doc comment promises; Zig code itself passed an empty argv).
- Inherited env is snapshotted with `vars_os()` before fork (Zig passes `environ`).
- `Pty`: `slave: Option<OwnedFd>`; both fds close on drop (Zig never auto-closed the slave).
Master opened CLOEXEC, slave not (like glibc openpty + explicit CLOEXEC). IUTF8 set.
- cgroup: `linux_cgroup_pre_exec(&RtPreExecInfo)` (child side, waits <=250ms) and
`linux_cgroup_post_fork(cmd, &RtPostForkInfo, create_scope)` where `create_scope` is a
closure standing in for the GIO D-Bus `cgroup.createScope`. `fmt_scope(pid)`.
Local `LinuxCgroup`/`GtkSingleInstance`/`Rt*Info` types: TODO(integration) from ghostty-config.
- shell_integration: local `Command` (Shell/Direct) with `ArgIteratorGeneral` quoting rules,
`ShellIntegrationFeatures` (same defaults) - TODO(integration) replace with config types.
`EnvMap = HashMap<String,String>`. `setup(resource_dir, &Command, &mut EnvMap, Option<Shell>)`
-> `Result<Option<ShellIntegration>, Error>` (Error only from `homedir::home`).
Darwin `/bin/bash` special case dropped.
## Tests (52 total: 47 unit + 5 integration, all passing)
Zig tests ported (35): pty 1; Command 10 (createNullDelimitedEnvMap as `prepare()`, os/rt pre exec
1+2, rt post fork, redirect stdout, custom env, custom cwd, execve failure); shell_integration 21
(force shell, failure, detectShell, setup features, bash x8, xdg x3, nushell x3, zsh x3);
terminfo 3 (xtgettcap map, Source encode, ghostty encode).
Skipped: Windows/NullPty/Windows env block helpers, `refAllDecls` tests.
Extras: pty cloexec/IUTF8/mode, Exit decoding, signal exit, nonblocking wait, invalid cwd ignored,
fd leak check, cgroup mode matrices, arg splitter, bundled-resources check, terminfo golden vs Zig,
`tic -x` compile of the generated source (skipped if tic absent),
`tests/pty_command.rs`: real `/bin/sh -c 'echo hi; stty size'` on a 31x97 pty (output
`hi\r\n31 97\r\n`), controlling-tty check, resize check.
## Known gaps / TODO(integration)
- Config-derived types above; `restore_rlimit` from global state; D-Bus scope creation.
- `Pty::child_pre_exec` is meant to be called from Exec's `os_pre_exec` (see tests/pty_command.rs
for the wiring). Flatpak passwd path in ghostty-os needs Pty (ghostty-os TODO) - now available.
- Hooks run after fork in a possibly multithreaded process; `linux_cgroup_pre_exec` allocates
and sleeps (same as Zig) - fine on glibc.
resources/shell-integration/README.md
+117
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@@ -0,0 +1,117 @@
# Shell Integration Code
This is the shell-specific shell-integration code that is
used for the shell-integration feature set that Ghostty
supports.
This README is meant as developer documentation and not as
user documentation. For user documentation, see the main
README or [ghostty.org](https://ghostty.org/docs)
## Implementation Details
### Bash
Automatic [Bash](https://www.gnu.org/software/bash/) shell integration works by
starting Bash in POSIX mode and using the `ENV` environment variable to load
our integration script (`bash/ghostty.bash`). This prevents Bash from loading
its normal startup files, which becomes our script's responsibility (along with
disabling POSIX mode).
Bash shell integration can also be sourced manually from `bash/ghostty.bash`.
This also works for older versions of Bash.
```bash
# Ghostty shell integration for Bash. This must be at the top of your bashrc!
if [ -n "${GHOSTTY_RESOURCES_DIR}" ]; then
builtin source "${GHOSTTY_RESOURCES_DIR}/shell-integration/bash/ghostty.bash"
fi
```
> [!NOTE]
>
> The version of Bash distributed with macOS (`/bin/bash`) does not support
> automatic shell integration. You'll need to manually source the shell
> integration script (as shown above). You can also install a standard
> version of Bash from Homebrew or elsewhere and set it as your shell.
### Elvish
For [Elvish](https://elv.sh), `$GHOSTTY_RESOURCES_DIR/src/shell-integration`
contains an `./elvish/lib/ghostty-integration.elv` file.
Elvish, on startup, searches for paths defined in `XDG_DATA_DIRS`
variable for `./elvish/lib/*.elv` files and imports them. They are thus
made available for use as modules by way of `use <filename>`.
Ghostty launches Elvish, passing the environment with `XDG_DATA_DIRS` prepended
with `$GHOSTTY_RESOURCES_DIR/src/shell-integration`. It contains
`./elvish/lib/ghostty-integration.elv`. The user can then import it
by `use ghostty-integration` every time after shell startup or
autostart integration in `$XDG_CONFIG_HOME/elvish/rc.elv`,
which will run the integration routines.
If you decide to autostart `ghostty-integration` with `rc.elv`, you should
detect whether the terminal is Ghostty or not. To do this, add this to the end
of your `rc.elv` file:
```elvish
if (eq $E:TERM "xterm-ghostty") {
try { use ghostty-integration } catch { }
}
```
The [Elvish](https://elv.sh) shell integration is supported by
the community and is not officially supported by Ghostty. We distribute
it for ease of access and use but do not provide support for it.
If you experience issues with the Elvish shell integration, I welcome
any contributions to fix them. Thank you!
### Fish
For [Fish](https://fishshell.com/), Ghostty prepends to the
`XDG_DATA_DIRS` directory. Fish automatically loads configuration
files in `<XDG_DATA_DIR>/fish/vendor_conf.d/*.fish` on startup,
allowing us to automatically integrate with the shell. For details
on the Fish startup process, see the
[Fish documentation](https://fishshell.com/docs/current/language.html).
### Nushell
For [Nushell](https://www.nushell.sh/), Ghostty prepends to the
`XDG_DATA_DIRS` directory, making the `ghostty` module available through
Nushell's vendor autoload mechanism. Ghostty then automatically imports
the module using the `-e "use ghostty *"` flag when starting Nushell.
Nushell provides many shell features itself, such as `title` and `cursor`,
so our integration focuses on Ghostty-specific features like `sudo`,
`ssh-env`, and `ssh-terminfo`.
The shell integration is automatically enabled when running Nushell in Ghostty,
but you can also load it manually is shell integration is disabled:
```nushell
source $GHOSTTY_RESOURCES_DIR/shell-integration/nushell/vendor/autoload/ghostty.nu
use ghostty *
```
### Zsh
Automatic [Zsh](https://www.zsh.org/) integration works by temporarily setting
`ZDOTDIR` to our `zsh` directory. An existing `ZDOTDIR` environment variable
value will be retained and restored after our shell integration scripts are
run.
However, if `ZDOTDIR` is set in a system-wide file like `/etc/zshenv`, it will
override Ghostty's `ZDOTDIR` value, preventing the shell integration from being
loaded. In this case, the shell integration needs to be loaded manually.
To load the Zsh shell integration manually:
```zsh
if [[ -n $GHOSTTY_RESOURCES_DIR ]]; then
source "$GHOSTTY_RESOURCES_DIR"/shell-integration/zsh/ghostty-integration
fi
```
Shell integration requires Zsh 5.1+.
resources/shell-integration/bash/bash-preexec.sh
+382
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@@ -0,0 +1,382 @@
# bash-preexec.sh -- Bash support for ZSH-like 'preexec' and 'precmd' functions.
# https://github.com/rcaloras/bash-preexec
#
#
# 'preexec' functions are executed before each interactive command is
# executed, with the interactive command as its argument. The 'precmd'
# function is executed before each prompt is displayed.
#
# Author: Ryan Caloras (ryan@bashhub.com)
# Forked from Original Author: Glyph Lefkowitz
#
# V0.6.0
#
# General Usage:
#
# 1. Source this file at the end of your bash profile so as not to interfere
# with anything else that's using PROMPT_COMMAND.
#
# 2. Add any precmd or preexec functions by appending them to their arrays:
# e.g.
# precmd_functions+=(my_precmd_function)
# precmd_functions+=(some_other_precmd_function)
#
# preexec_functions+=(my_preexec_function)
#
# 3. Consider changing anything using the DEBUG trap or PROMPT_COMMAND
# to use preexec and precmd instead. Preexisting usages will be
# preserved, but doing so manually may be less surprising.
#
# Note: This module requires two Bash features which you must not otherwise be
# using: the "DEBUG" trap, and the "PROMPT_COMMAND" variable. If you override
# either of these after bash-preexec has been installed it will most likely break.
# Tell shellcheck what kind of file this is.
# shellcheck shell=bash
# Make sure this is bash that's running and return otherwise.
# Use POSIX syntax for this line:
if [ -z "${BASH_VERSION-}" ]; then
return 1
fi
# We only support Bash 3.1+.
# Note: BASH_VERSINFO is first available in Bash-2.0.
if [[ -z "${BASH_VERSINFO-}" ]] || (( BASH_VERSINFO[0] < 3 || (BASH_VERSINFO[0] == 3 && BASH_VERSINFO[1] < 1) )); then
return 1
fi
# Avoid duplicate inclusion
if [[ -n "${bash_preexec_imported:-}" || -n "${__bp_imported:-}" ]]; then
return 0
fi
bash_preexec_imported="defined"
# WARNING: This variable is no longer used and should not be relied upon.
# Use ${bash_preexec_imported} instead.
# shellcheck disable=SC2034
__bp_imported="${bash_preexec_imported}"
# Should be available to each precmd and preexec
# functions, should they want it. $? and $_ are available as $? and $_, but
# $PIPESTATUS is available only in a copy, $BP_PIPESTATUS.
# TODO: Figure out how to restore PIPESTATUS before each precmd or preexec
# function.
__bp_last_ret_value="$?"
BP_PIPESTATUS=("${PIPESTATUS[@]}")
__bp_last_argument_prev_command="$_"
__bp_inside_precmd=0
__bp_inside_preexec=0
# Initial PROMPT_COMMAND string that is removed from PROMPT_COMMAND post __bp_install
__bp_install_string=$'__bp_trap_string="$(trap -p DEBUG)"\ntrap - DEBUG\n__bp_install'
# Fails if any of the given variables are readonly
# Reference https://stackoverflow.com/a/4441178
__bp_require_not_readonly() {
local var
for var; do
if ! ( unset "$var" 2> /dev/null ); then
echo "bash-preexec requires write access to ${var}" >&2
return 1
fi
done
}
# Remove ignorespace and or replace ignoreboth from HISTCONTROL
# so we can accurately invoke preexec with a command from our
# history even if it starts with a space.
__bp_adjust_histcontrol() {
local histcontrol
histcontrol="${HISTCONTROL:-}"
histcontrol="${histcontrol//ignorespace}"
# Replace ignoreboth with ignoredups
if [[ "$histcontrol" == *"ignoreboth"* ]]; then
histcontrol="ignoredups:${histcontrol//ignoreboth}"
fi
export HISTCONTROL="$histcontrol"
}
# This variable describes whether we are currently in "interactive mode";
# i.e. whether this shell has just executed a prompt and is waiting for user
# input. It documents whether the current command invoked by the trace hook is
# run interactively by the user; it's set immediately after the prompt hook,
# and unset as soon as the trace hook is run.
__bp_preexec_interactive_mode=""
# These arrays are used to add functions to be run before, or after, prompts.
declare -a precmd_functions
declare -a preexec_functions
# Trims leading and trailing whitespace from $2 and writes it to the variable
# name passed as $1
__bp_trim_whitespace() {
local var=${1:?} text=${2:-}
text="${text#"${text%%[![:space:]]*}"}" # remove leading whitespace characters
text="${text%"${text##*[![:space:]]}"}" # remove trailing whitespace characters
printf -v "$var" '%s' "$text"
}
# Trims whitespace and removes any leading or trailing semicolons from $2 and
# writes the resulting string to the variable name passed as $1. Used for
# manipulating substrings in PROMPT_COMMAND
__bp_sanitize_string() {
local var=${1:?} text=${2:-} sanitized
__bp_trim_whitespace sanitized "$text"
sanitized=${sanitized%;}
sanitized=${sanitized#;}
__bp_trim_whitespace sanitized "$sanitized"
printf -v "$var" '%s' "$sanitized"
}
# This function is installed as part of the PROMPT_COMMAND;
# It sets a variable to indicate that the prompt was just displayed,
# to allow the DEBUG trap to know that the next command is likely interactive.
__bp_interactive_mode() {
__bp_preexec_interactive_mode="on"
}
# This function is installed as part of the PROMPT_COMMAND.
# It will invoke any functions defined in the precmd_functions array.
__bp_precmd_invoke_cmd() {
# Save the returned value from our last command, and from each process in
# its pipeline. Note: this MUST be the first thing done in this function.
# BP_PIPESTATUS may be unused, ignore
# shellcheck disable=SC2034
__bp_last_ret_value="$?" BP_PIPESTATUS=("${PIPESTATUS[@]}")
# Don't invoke precmds if we are inside an execution of an "original
# prompt command" by another precmd execution loop. This avoids infinite
# recursion.
if (( __bp_inside_precmd > 0 )); then
return
fi
local __bp_inside_precmd=1
# Invoke every function defined in our function array.
local precmd_function
for precmd_function in "${precmd_functions[@]}"; do
# Only execute this function if it actually exists.
# Test existence of functions with: declare -[Ff]
if type -t "$precmd_function" 1>/dev/null; then
__bp_set_ret_value "$__bp_last_ret_value" "$__bp_last_argument_prev_command"
# Quote our function invocation to prevent issues with IFS
"$precmd_function"
fi
done
__bp_set_ret_value "$__bp_last_ret_value"
}
# Sets a return value in $?. We may want to get access to the $? variable in our
# precmd functions. This is available for instance in zsh. We can simulate it in bash
# by setting the value here.
__bp_set_ret_value() {
return ${1:+"$1"}
}
__bp_in_prompt_command() {
local prompt_command_array IFS=$'\n;'
read -rd '' -a prompt_command_array <<< "${PROMPT_COMMAND[*]:-}"
local trimmed_arg
__bp_trim_whitespace trimmed_arg "${1:-}"
local command trimmed_command
for command in "${prompt_command_array[@]:-}"; do
__bp_trim_whitespace trimmed_command "$command"
if [[ "$trimmed_command" == "$trimmed_arg" ]]; then
return 0
fi
done
return 1
}
# This function is installed as the DEBUG trap. It is invoked before each
# interactive prompt display. Its purpose is to inspect the current
# environment to attempt to detect if the current command is being invoked
# interactively, and invoke 'preexec' if so.
__bp_preexec_invoke_exec() {
# Save the contents of $_ so that it can be restored later on.
# https://stackoverflow.com/questions/40944532/bash-preserve-in-a-debug-trap#40944702
__bp_last_argument_prev_command="${1:-}"
# Don't invoke preexecs if we are inside of another preexec.
if (( __bp_inside_preexec > 0 )); then
return
fi
local __bp_inside_preexec=1
# Checks if the file descriptor is not standard out (i.e. '1')
# __bp_delay_install checks if we're in test. Needed for bats to run.
# Prevents preexec from being invoked for functions in PS1
if [[ ! -t 1 && -z "${__bp_delay_install:-}" ]]; then
return
fi
if [[ -n "${COMP_POINT:-}" || -n "${READLINE_POINT:-}" ]]; then
# We're in the middle of a completer or a keybinding set up by "bind
# -x". This obviously can't be an interactively issued command.
return
fi
if [[ -z "${__bp_preexec_interactive_mode:-}" ]]; then
# We're doing something related to displaying the prompt. Let the
# prompt set the title instead of me.
return
else
# If we're in a subshell, then the prompt won't be re-displayed to put
# us back into interactive mode, so let's not set the variable back.
# In other words, if you have a subshell like
# (sleep 1; sleep 2)
# You want to see the 'sleep 2' as a set_command_title as well.
if [[ 0 -eq "${BASH_SUBSHELL:-}" ]]; then
__bp_preexec_interactive_mode=""
fi
fi
if __bp_in_prompt_command "${BASH_COMMAND:-}"; then
# If we're executing something inside our prompt_command then we don't
# want to call preexec. Bash prior to 3.1 can't detect this at all :/
__bp_preexec_interactive_mode=""
return
fi
local this_command
this_command=$(LC_ALL=C HISTTIMEFORMAT='' builtin history 1)
this_command="${this_command#*[[:digit:]][* ] }"
# Sanity check to make sure we have something to invoke our function with.
if [[ -z "$this_command" ]]; then
return
fi
# Invoke every function defined in our function array.
local preexec_function
local preexec_function_ret_value
local preexec_ret_value=0
for preexec_function in "${preexec_functions[@]:-}"; do
# Only execute each function if it actually exists.
# Test existence of function with: declare -[fF]
if type -t "$preexec_function" 1>/dev/null; then
__bp_set_ret_value "${__bp_last_ret_value:-}"
# Quote our function invocation to prevent issues with IFS
"$preexec_function" "$this_command"
preexec_function_ret_value="$?"
if [[ "$preexec_function_ret_value" != 0 ]]; then
preexec_ret_value="$preexec_function_ret_value"
fi
fi
done
# Restore the last argument of the last executed command, and set the return
# value of the DEBUG trap to be the return code of the last preexec function
# to return an error.
# If `extdebug` is enabled a non-zero return value from any preexec function
# will cause the user's command not to execute.
# Run `shopt -s extdebug` to enable
__bp_set_ret_value "$preexec_ret_value" "$__bp_last_argument_prev_command"
}
__bp_install() {
# Exit if we already have this installed.
if [[ "${PROMPT_COMMAND[*]:-}" == *"__bp_precmd_invoke_cmd"* ]]; then
return 1
fi
trap '__bp_preexec_invoke_exec "$_"' DEBUG
# Preserve any prior DEBUG trap as a preexec function
eval "local trap_argv=(${__bp_trap_string:-})"
local prior_trap=${trap_argv[2]:-}
unset __bp_trap_string
if [[ -n "$prior_trap" ]]; then
eval '__bp_original_debug_trap() {
'"$prior_trap"'
}'
preexec_functions+=(__bp_original_debug_trap)
fi
# Adjust our HISTCONTROL Variable if needed.
#
# GHOSTTY: Don't modify HISTCONTROL. This hack is only needed to improve the
# accuracy of the command argument passed to the preexec functions, and we
# don't use that argument in our bash shell integration script (and nor does
# the __bp_original_debug_trap function above, which is the only other active
# preexec function).
#__bp_adjust_histcontrol
# Issue #25. Setting debug trap for subshells causes sessions to exit for
# backgrounded subshell commands (e.g. (pwd)& ). Believe this is a bug in Bash.
#
# Disabling this by default. It can be enabled by setting this variable.
if [[ -n "${__bp_enable_subshells:-}" ]]; then
# Set so debug trap will work be invoked in subshells.
set -o functrace > /dev/null 2>&1
shopt -s extdebug > /dev/null 2>&1
fi
local existing_prompt_command
# Remove setting our trap install string and sanitize the existing prompt command string
existing_prompt_command="${PROMPT_COMMAND:-}"
# Edge case of appending to PROMPT_COMMAND
existing_prompt_command="${existing_prompt_command//$__bp_install_string/:}" # no-op
existing_prompt_command="${existing_prompt_command//$'\n':$'\n'/$'\n'}" # remove known-token only
existing_prompt_command="${existing_prompt_command//$'\n':;/$'\n'}" # remove known-token only
__bp_sanitize_string existing_prompt_command "$existing_prompt_command"
if [[ "${existing_prompt_command:-:}" == ":" ]]; then
existing_prompt_command=
fi
# Install our hooks in PROMPT_COMMAND to allow our trap to know when we've
# actually entered something.
PROMPT_COMMAND='__bp_precmd_invoke_cmd'
PROMPT_COMMAND+=${existing_prompt_command:+$'\n'$existing_prompt_command}
if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 1) )); then
PROMPT_COMMAND+=('__bp_interactive_mode')
else
# shellcheck disable=SC2179 # PROMPT_COMMAND is not an array in bash <= 5.0
PROMPT_COMMAND+=$'\n__bp_interactive_mode'
fi
# Add two functions to our arrays for convenience
# of definition.
precmd_functions+=(precmd)
preexec_functions+=(preexec)
# Invoke our two functions manually that were added to $PROMPT_COMMAND
__bp_precmd_invoke_cmd
__bp_interactive_mode
}
# Sets an installation string as part of our PROMPT_COMMAND to install
# after our session has started. This allows bash-preexec to be included
# at any point in our bash profile.
__bp_install_after_session_init() {
# bash-preexec needs to modify these variables in order to work correctly
# if it can't, just stop the installation
__bp_require_not_readonly PROMPT_COMMAND HISTCONTROL HISTTIMEFORMAT || return
local sanitized_prompt_command
__bp_sanitize_string sanitized_prompt_command "${PROMPT_COMMAND:-}"
if [[ -n "$sanitized_prompt_command" ]]; then
# shellcheck disable=SC2178 # PROMPT_COMMAND is not an array in bash <= 5.0
PROMPT_COMMAND=${sanitized_prompt_command}$'\n'
fi
# shellcheck disable=SC2179 # PROMPT_COMMAND is not an array in bash <= 5.0
PROMPT_COMMAND+=${__bp_install_string}
}
# Run our install so long as we're not delaying it.
if [[ -z "${__bp_delay_install:-}" ]]; then
__bp_install_after_session_init
fi
resources/shell-integration/bash/ghostty.bash
+315
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@@ -0,0 +1,315 @@
# Parts of this script are based on Kitty's bash integration. Kitty is
# distributed under GPLv3, so this file is also distributed under GPLv3.
# The license header is reproduced below:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# We need to be in interactive mode to proceed.
if [[ "$-" != *i* ]]; then builtin return; fi
# When automatic shell integration is active, we were started in POSIX
# mode and need to manually recreate the bash startup sequence.
if [ -n "$GHOSTTY_BASH_INJECT" ]; then
# Store a temporary copy of our startup flags and unset these global
# environment variables so we can safely handle reentrancy.
builtin declare __ghostty_bash_flags="$GHOSTTY_BASH_INJECT"
builtin unset ENV GHOSTTY_BASH_INJECT
# Restore an existing ENV that was replaced by the shell integration code.
if [[ -n "$GHOSTTY_BASH_ENV" ]]; then
builtin export ENV=$GHOSTTY_BASH_ENV
builtin unset GHOSTTY_BASH_ENV
fi
# Restore bash's default 'posix' behavior. Also reset 'inherit_errexit',
# which doesn't happen as part of the 'posix' reset.
builtin set +o posix
builtin shopt -u inherit_errexit 2>/dev/null
# Unexport HISTFILE if it was set by the shell integration code.
if [[ -n "$GHOSTTY_BASH_UNEXPORT_HISTFILE" ]]; then
builtin export -n HISTFILE
builtin unset GHOSTTY_BASH_UNEXPORT_HISTFILE
fi
# Manually source the startup files. See INVOCATION in bash(1) and
# run_startup_files() in shell.c in the Bash source code.
if builtin shopt -q login_shell; then
if [[ $__ghostty_bash_flags != *"--noprofile"* ]]; then
[ -r /etc/profile ] && builtin source "/etc/profile"
for __ghostty_rcfile in "$HOME/.bash_profile" "$HOME/.bash_login" "$HOME/.profile"; do
[ -r "$__ghostty_rcfile" ] && {
builtin source "$__ghostty_rcfile"
break
}
done
fi
else
if [[ $__ghostty_bash_flags != *"--norc"* ]]; then
# The location of the system bashrc is determined at bash build
# time via -DSYS_BASHRC and can therefore vary across distros:
# Arch, Debian, Ubuntu use /etc/bash.bashrc
# Fedora uses /etc/bashrc sourced from ~/.bashrc instead of SYS_BASHRC
# Void Linux uses /etc/bash/bashrc
# Nixos uses /etc/bashrc
for __ghostty_rcfile in /etc/bash.bashrc /etc/bash/bashrc /etc/bashrc; do
[ -r "$__ghostty_rcfile" ] && {
builtin source "$__ghostty_rcfile"
break
}
done
if [[ -z "$GHOSTTY_BASH_RCFILE" ]]; then GHOSTTY_BASH_RCFILE="$HOME/.bashrc"; fi
[ -r "$GHOSTTY_BASH_RCFILE" ] && builtin source "$GHOSTTY_BASH_RCFILE"
fi
fi
builtin unset __ghostty_rcfile
builtin unset __ghostty_bash_flags
builtin unset GHOSTTY_BASH_RCFILE
fi
# Add Ghostty binary to PATH if the path feature is enabled
if [[ "$GHOSTTY_SHELL_FEATURES" == *"path"* && -n "$GHOSTTY_BIN_DIR" ]]; then
if [[ ":$PATH:" != *":$GHOSTTY_BIN_DIR:"* ]]; then
export PATH="$PATH:$GHOSTTY_BIN_DIR"
fi
fi
# Sudo
if [[ "$GHOSTTY_SHELL_FEATURES" == *"sudo"* && -n "$TERMINFO" ]]; then
# Wrap `sudo` command to ensure Ghostty terminfo is preserved.
#
# This approach supports wrapping a `sudo` alias, but the alias definition
# must come _after_ this function is defined. Otherwise, the alias expansion
# will take precedence over this function, and it won't be wrapped.
function sudo {
builtin local sudo_has_sudoedit_flags="no"
for arg in "$@"; do
# Check if argument is '-e' or '--edit' (sudoedit flags)
if [[ "$arg" == "-e" || $arg == "--edit" ]]; then
sudo_has_sudoedit_flags="yes"
builtin break
fi
# Check if argument is neither an option nor a key-value pair
if [[ "$arg" != -* && "$arg" != *=* ]]; then
builtin break
fi
done
if [[ "$sudo_has_sudoedit_flags" == "yes" ]]; then
builtin command sudo "$@"
else
builtin command sudo --preserve-env=TERMINFO "$@"
fi
}
fi
# SSH Integration
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-* ]]; then
function ssh() {
builtin local ssh_term ssh_opts
ssh_term="xterm-256color"
ssh_opts=()
# Configure environment variables for remote session
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-env* ]]; then
ssh_opts+=(-o "SetEnv COLORTERM=truecolor")
ssh_opts+=(-o "SendEnv TERM_PROGRAM TERM_PROGRAM_VERSION")
fi
# Install terminfo on remote host if needed
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-terminfo* ]]; then
builtin local ssh_user ssh_hostname
while IFS=' ' read -r ssh_key ssh_value; do
case "$ssh_key" in
user) ssh_user="$ssh_value" ;;
hostname) ssh_hostname="$ssh_value" ;;
esac
[[ -n "$ssh_user" && -n "$ssh_hostname" ]] && break
done < <(builtin command ssh -G "$@" 2>/dev/null)
if [[ -n "$ssh_hostname" ]]; then
builtin local ssh_target="${ssh_user}@${ssh_hostname}"
# Check if terminfo is already cached
if "$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --host="$ssh_target" >/dev/null 2>&1; then
ssh_term="xterm-ghostty"
elif builtin command -v infocmp >/dev/null 2>&1; then
builtin local ssh_terminfo ssh_cpath_dir ssh_cpath
ssh_terminfo=$(infocmp -0 -x xterm-ghostty 2>/dev/null)
if [[ -n "$ssh_terminfo" ]]; then
builtin echo "Setting up xterm-ghostty terminfo on $ssh_hostname..." >&2
ssh_cpath_dir=$(mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null) || ssh_cpath_dir="/tmp/ghostty-ssh-$ssh_user.$$"
ssh_cpath="$ssh_cpath_dir/socket"
if builtin echo "$ssh_terminfo" | builtin command ssh -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null; then
ssh_term="xterm-ghostty"
ssh_opts+=(-o "ControlPath=$ssh_cpath")
# Cache successful installation
"$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
else
builtin echo "Warning: Failed to install terminfo." >&2
fi
else
builtin echo "Warning: Could not generate terminfo data." >&2
fi
else
builtin echo "Warning: ghostty command not available for cache management." >&2
fi
fi
fi
# Execute SSH with TERM environment variable
TERM="$ssh_term" builtin command ssh "${ssh_opts[@]}" "$@"
}
fi
# This is set to 1 when we're executing a command so that we don't
# send prompt marks multiple times.
_ghostty_executing=""
_ghostty_last_reported_cwd=""
function __ghostty_precmd() {
local ret="$?"
if test "$_ghostty_executing" != "0"; then
_GHOSTTY_SAVE_PS1="$PS1"
_GHOSTTY_SAVE_PS2="$PS2"
# Use 133;P (not 133;A) inside PS1 to avoid fresh-line behavior on
# readline redraws (e.g., vi mode switches, Ctrl-L). The initial
# 133;A with fresh-line is emitted once via printf below.
PS1='\[\e]133;P;k=i\a\]'$PS1'\[\e]133;B\a\]'
PS2='\[\e]133;P;k=s\a\]'$PS2'\[\e]133;B\a\]'
# Bash doesn't redraw the leading lines in a multiline prompt so we mark
# the start of each line (after each newline) as a secondary prompt. This
# correctly handles multiline prompts by setting the first to primary and
# the subsequent lines to secondary.
#
# We only replace the \n prompt escape, not literal newlines ($'\n'),
# because literal newlines may appear inside $(...) command substitutions
# where inserting escape sequences would break shell syntax.
if [[ "$PS1" == *"\n"* ]]; then
PS1="${PS1//\\n/\\n$'\\[\\e]133;P;k=s\\a\\]'}"
fi
# Cursor
if [[ "$GHOSTTY_SHELL_FEATURES" == *"cursor"* ]]; then
builtin local cursor=5 # blinking bar
[[ "$GHOSTTY_SHELL_FEATURES" == *"cursor:steady"* ]] && cursor=6 # steady bar
[[ "$PS1" != *"\[\e[${cursor} q\]"* ]] && PS1=$PS1"\[\e[${cursor} q\]"
[[ "$PS0" != *'\[\e[0 q\]'* ]] && PS0=$PS0'\[\e[0 q\]' # reset
fi
# Title (working directory)
if [[ "$GHOSTTY_SHELL_FEATURES" == *"title"* ]]; then
PS1=$PS1'\[\e]2;\w\a\]'
fi
fi
if test "$_ghostty_executing" != ""; then
# End of current command. Report its status.
builtin printf "\e]133;D;%s;aid=%s\a" "$ret" "$BASHPID"
fi
# Fresh line and start of prompt.
builtin printf "\e]133;A;redraw=last;cl=line;aid=%s\a" "$BASHPID"
# unfortunately bash provides no hooks to detect cwd changes
# in particular this means cwd reporting will not happen for a
# command like cd /test && cat. PS0 is evaluated before cd is run.
if [[ "$_ghostty_last_reported_cwd" != "$PWD" ]]; then
_ghostty_last_reported_cwd="$PWD"
builtin printf "\e]7;kitty-shell-cwd://%s%s\a" "$HOSTNAME" "$PWD"
fi
_ghostty_executing=0
}
function __ghostty_preexec() {
builtin local cmd="$1"
PS1="$_GHOSTTY_SAVE_PS1"
PS2="$_GHOSTTY_SAVE_PS2"
# Title (current command)
if [[ -n $cmd && "$GHOSTTY_SHELL_FEATURES" == *"title"* ]]; then
builtin printf "\e]2;%s\a" "${cmd//[[:cntrl:]]/}"
fi
# End of input, start of output.
builtin printf "\e]133;C;\a"
_ghostty_executing=1
}
if (( BASH_VERSINFO[0] > 4 || (BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] >= 4) )); then
__ghostty_preexec_hook() {
builtin local cmd
cmd=$(LC_ALL=C HISTTIMEFORMAT='' builtin history 1)
cmd="${cmd#*[[:digit:]][* ] }" # remove leading history number
[[ -n "$cmd" ]] && __ghostty_preexec "$cmd"
}
# Use function substitution in 5.3+. Otherwise, use command substitution.
# Any output (including escape sequences) goes to the terminal.
# Only define if not already set (allows re-sourcing).
if [[ -z "${__ghostty_ps0+x}" ]]; then
if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 3) )); then
# shellcheck disable=SC2016
builtin readonly __ghostty_ps0='${ __ghostty_preexec_hook; }'
else
# shellcheck disable=SC2016
builtin readonly __ghostty_ps0='$(__ghostty_preexec_hook >/dev/tty)'
fi
fi
__ghostty_hook() {
builtin local ret=$?
__ghostty_precmd "$ret"
if [[ "$PS0" != *"$__ghostty_ps0"* ]]; then
PS0=$PS0"${__ghostty_ps0}"
fi
}
# Append our hook to PROMPT_COMMAND, preserving its existing type.
# shellcheck disable=SC2128,SC2178,SC2179
if [[ ";${PROMPT_COMMAND[*]:-};" != *";__ghostty_hook;"* ]]; then
if [[ -z "${PROMPT_COMMAND[*]}" ]]; then
if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 1) )); then
PROMPT_COMMAND=(__ghostty_hook)
else
PROMPT_COMMAND="__ghostty_hook"
fi
elif [[ $(builtin declare -p PROMPT_COMMAND 2>/dev/null) == "declare -a "* ]]; then
PROMPT_COMMAND+=(__ghostty_hook)
else
[[ "${PROMPT_COMMAND}" =~ \;[[:space:]]*$ ]] || PROMPT_COMMAND+=";"
PROMPT_COMMAND+=" __ghostty_hook"
fi
fi
else
builtin source "$(dirname -- "${BASH_SOURCE[0]}")/bash-preexec.sh"
preexec_functions+=(__ghostty_preexec)
precmd_functions+=(__ghostty_precmd)
fi
resources/shell-integration/elvish/lib/ghostty-integration.elv
+191
View File
@@ -0,0 +1,191 @@
{
use platform
use str
# Clean up XDG_DATA_DIRS by removing GHOSTTY_SHELL_INTEGRATION_XDG_DIR
if (and (has-env GHOSTTY_SHELL_INTEGRATION_XDG_DIR) (has-env XDG_DATA_DIRS)) {
set-env XDG_DATA_DIRS (str:replace $E:GHOSTTY_SHELL_INTEGRATION_XDG_DIR":" "" $E:XDG_DATA_DIRS)
unset-env GHOSTTY_SHELL_INTEGRATION_XDG_DIR
}
# List of enabled shell integration features
var features = [(str:split ',' $E:GHOSTTY_SHELL_FEATURES)]
# State tracking for semantic prompt sequences
# Values: 'prompt-start', 'pre-exec', 'post-exec'
fn set-prompt-state {|new| set-env __ghostty_prompt_state $new }
fn mark-prompt-start {
if (not-eq $E:__ghostty_prompt_state 'prompt-start') {
printf "\e]133;D;aid="$pid"\a"
}
set-prompt-state 'prompt-start'
printf "\e]133;A;aid="$pid"\a"
}
fn mark-output-start {|_|
set-prompt-state 'pre-exec'
printf "\e]133;C\a"
}
fn mark-output-end {|cmd-info|
set-prompt-state 'post-exec'
var exit-status = 0
# in case of error: retrieve exit status,
# unless does not exist (= builtin function failure), then default to 1
if (not-eq $nil $cmd-info[error]) {
set exit-status = 1
if (has-key $cmd-info[error] reason) {
if (has-key $cmd-info[error][reason] exit-status) {
set exit-status = $cmd-info[error][reason][exit-status]
}
}
}
printf "\e]133;D;"$exit-status";aid="$pid"\a"
}
# NOTE: OSC 133;B (end of prompt, start of input) cannot be reliably
# implemented at the script level in Elvish. The prompt function's output is
# escaped, and writing to /dev/tty has timing issues because Elvish renders
# its prompts on a background thread. Full semantic prompt support requires a
# native implementation: https://github.com/elves/elvish/pull/1917
fn sudo-with-terminfo {|@args|
var sudoedit = $false
for arg $args {
if (str:has-prefix $arg --) {
if (eq $arg --edit) {
set sudoedit = $true
break
}
} elif (str:has-prefix $arg -) {
if (str:contains (str:trim-prefix $arg -) e) {
set sudoedit = $true
break
}
} elif (not (str:contains $arg =)) {
break
}
}
if (not $sudoedit) { set args = [ --preserve-env=TERMINFO $@args ] }
(external sudo) $@args
}
fn ssh-integration {|@args|
var ssh-term = "xterm-256color"
var ssh-opts = []
# Configure environment variables for remote session
if (has-value $features ssh-env) {
set ssh-opts = (conj $ssh-opts ^
-o "SetEnv COLORTERM=truecolor" ^
-o "SendEnv TERM_PROGRAM TERM_PROGRAM_VERSION")
}
if (has-value $features ssh-terminfo) {
var ssh-user = ""
var ssh-hostname = ""
# Parse ssh config
for line [((external ssh) -G $@args)] {
var parts = [(str:fields $line)]
if (> (count $parts) 1) {
var ssh-key = $parts[0]
var ssh-value = $parts[1]
if (eq $ssh-key user) {
set ssh-user = $ssh-value
} elif (eq $ssh-key hostname) {
set ssh-hostname = $ssh-value
}
if (and (not-eq $ssh-user "") (not-eq $ssh-hostname "")) {
break
}
}
}
if (not-eq $ssh-hostname "") {
var ghostty = $E:GHOSTTY_BIN_DIR/"ghostty"
var ssh-target = $ssh-user"@"$ssh-hostname
# Check if terminfo is already cached
if (bool ?($ghostty +ssh-cache --host=$ssh-target)) {
set ssh-term = "xterm-ghostty"
} elif (has-external infocmp) {
var ssh-terminfo = ((external infocmp) -0 -x xterm-ghostty 2>/dev/null | slurp)
if (not-eq $ssh-terminfo "") {
echo "Setting up xterm-ghostty terminfo on "$ssh-hostname"..." >&2
use os
var ssh-cpath-dir = (os:temp-dir "ghostty-ssh-"$ssh-user".*")
var ssh-cpath = $ssh-cpath-dir"/socket"
if (bool ?(echo $ssh-terminfo | (external ssh) $@ssh-opts -o ControlMaster=yes -o ControlPath=$ssh-cpath -o ControlPersist=60s $@args '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null)) {
set ssh-term = "xterm-ghostty"
set ssh-opts = (conj $ssh-opts -o ControlPath=$ssh-cpath)
# Cache successful installation
$ghostty +ssh-cache --add=$ssh-target >/dev/null
} else {
echo "Warning: Failed to install terminfo." >&2
}
} else {
echo "Warning: Could not generate terminfo data." >&2
}
} else {
echo "Warning: ghostty command not available for cache management." >&2
}
}
}
with [E:TERM = $ssh-term] {
(external ssh) $@ssh-opts $@args
}
}
defer {
mark-prompt-start
}
set edit:before-readline = (conj $edit:before-readline $mark-prompt-start~)
set edit:after-readline = (conj $edit:after-readline $mark-output-start~)
set edit:after-command = (conj $edit:after-command $mark-output-end~)
if (str:contains $E:GHOSTTY_SHELL_FEATURES "cursor") {
var cursor = "5" # blinking bar
if (has-value $features cursor:steady) {
set cursor = "6" # steady bar
}
fn beam { printf "\e["$cursor" q" }
fn reset { printf "\e[0 q" }
set edit:before-readline = (conj $edit:before-readline $beam~)
set edit:after-readline = (conj $edit:after-readline {|_| reset })
}
if (and (has-value $features path) (has-env GHOSTTY_BIN_DIR)) {
if (not (has-value $paths $E:GHOSTTY_BIN_DIR)) {
set paths = [$@paths $E:GHOSTTY_BIN_DIR]
}
}
if (and (has-value $features sudo) (not-eq "" $E:TERMINFO) (has-external sudo)) {
edit:add-var sudo~ $sudo-with-terminfo~
}
if (and (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-) (has-external ssh)) {
edit:add-var ssh~ $ssh-integration~
}
# Report changes to the current directory.
fn report-pwd { printf "\e]7;kitty-shell-cwd://%s%s\a" (platform:hostname) $pwd }
set after-chdir = (conj $after-chdir {|_| report-pwd })
report-pwd
}
resources/shell-integration/fish/vendor_conf.d/ghostty-shell-integration.fish
+246
View File
@@ -0,0 +1,246 @@
# This shell script aims to be written in a way where it can't really fail
# or all failure scenarios are handled, so that we never leave the shell in
# a weird state. If you find a way to break this, please report a bug!
function ghostty_restore_xdg_data_dir -d "restore the original XDG_DATA_DIR value"
# If we don't have our own data dir then we don't need to do anything.
if not set -q GHOSTTY_SHELL_INTEGRATION_XDG_DIR
return
end
# If the data dir isn't set at all then we don't need to do anything.
if not set -q XDG_DATA_DIRS
return
end
# We need to do this so that XDG_DATA_DIRS turns into an array.
set --function --path xdg_data_dirs "$XDG_DATA_DIRS"
# If our data dir is in the list then remove it.
if set --function index (contains --index "$GHOSTTY_SHELL_INTEGRATION_XDG_DIR" $xdg_data_dirs)
set --erase --function xdg_data_dirs[$index]
end
# Re-export our data dir
if set -q xdg_data_dirs[1]
set --global --export --unpath XDG_DATA_DIRS "$xdg_data_dirs"
else
set --erase --global XDG_DATA_DIRS
end
set --erase GHOSTTY_SHELL_INTEGRATION_XDG_DIR
end
function ghostty_exit -d "exit the shell integration setup"
functions -e ghostty_restore_xdg_data_dir
functions -e ghostty_exit
exit 0
end
# We always try to restore the XDG data dir
ghostty_restore_xdg_data_dir
# If we aren't interactive or we've already run, don't run.
status --is-interactive || ghostty_exit
# We do the full setup on the first prompt render. We do this so that other
# shell integrations that setup the prompt and modify things are able to run
# first. We want to run _last_.
function __ghostty_setup --on-event fish_prompt -d "Setup ghostty integration"
functions -e __ghostty_setup
set --local features (string split , $GHOSTTY_SHELL_FEATURES)
# Parse the fish version for feature detection.
# Default to 0.0 if version is unavailable or malformed.
set -l fish_major 0
set -l fish_minor 0
if set -q version[1]
set -l fish_ver (string match -r '(\d+)\.(\d+)' -- $version[1])
if set -q fish_ver[2]; and test -n "$fish_ver[2]"
set fish_major "$fish_ver[2]"
end
if set -q fish_ver[3]; and test -n "$fish_ver[3]"
set fish_minor "$fish_ver[3]"
end
end
# Our OSC133A (prompt start) sequence. If we're using Fish >= 4.1
# then it supports click_events so we enable that.
set -g __ghostty_prompt_start_mark "\e]133;A\a"
if test "$fish_major" -gt 4; or test "$fish_major" -eq 4 -a "$fish_minor" -ge 1
set -g __ghostty_prompt_start_mark "\e]133;A;click_events=1\a"
end
if string match -q 'cursor*' -- $features
set -l cursor 5 # blinking bar
contains cursor:steady $features && set cursor 6 # steady bar
# Change the cursor to a beam on prompt.
function __ghostty_set_cursor_beam --on-event fish_prompt -V cursor -d "Set cursor shape"
if not functions -q fish_vi_cursor_handle
echo -en "\e[$cursor q"
end
end
function __ghostty_reset_cursor --on-event fish_preexec -d "Reset cursor shape"
if not functions -q fish_vi_cursor_handle
echo -en "\e[0 q"
end
end
end
# Add Ghostty binary to PATH if the path feature is enabled
if contains path $features; and test -n "$GHOSTTY_BIN_DIR"
fish_add_path --global --path --append "$GHOSTTY_BIN_DIR"
end
# When using sudo shell integration feature, ensure $TERMINFO is set
# and `sudo` is not already a function or alias
if contains sudo $features; and test -n "$TERMINFO"; and test file = (type -t sudo 2> /dev/null; or echo "x")
# Wrap `sudo` command to ensure Ghostty terminfo is preserved
function sudo -d "Wrap sudo to preserve terminfo"
set --function sudo_has_sudoedit_flags no
for arg in $argv
# Check if argument is '-e' or '--edit' (sudoedit flags)
if string match -q -- -e "$arg"; or string match -q -- --edit "$arg"
set --function sudo_has_sudoedit_flags yes
break
end
# Check if argument is neither an option nor a key-value pair
if not string match -r -q -- "^-" "$arg"; and not string match -r -q -- "=" "$arg"
break
end
end
if test "$sudo_has_sudoedit_flags" = yes
command sudo $argv
else
command sudo --preserve-env=TERMINFO $argv
end
end
end
# SSH Integration
set -l features (string split ',' -- "$GHOSTTY_SHELL_FEATURES")
if contains ssh-env $features; or contains ssh-terminfo $features
function ssh --wraps=ssh --description "SSH wrapper with Ghostty integration"
set -l features (string split ',' -- "$GHOSTTY_SHELL_FEATURES")
set -l ssh_term xterm-256color
set -l ssh_opts
# Configure environment variables for remote session
if contains ssh-env $features
set -a ssh_opts -o "SetEnv COLORTERM=truecolor"
set -a ssh_opts -o "SendEnv TERM_PROGRAM TERM_PROGRAM_VERSION"
end
# Install terminfo on remote host if needed
if contains ssh-terminfo $features
set -l ssh_user
set -l ssh_hostname
for line in (command ssh -G $argv 2>/dev/null)
set -l parts (string split ' ' -- $line)
if test (count $parts) -ge 2
switch $parts[1]
case user
set ssh_user $parts[2]
case hostname
set ssh_hostname $parts[2]
end
if test -n "$ssh_user"; and test -n "$ssh_hostname"
break
end
end
end
if test -n "$ssh_hostname"
set -l ssh_target "$ssh_user@$ssh_hostname"
# Check if terminfo is already cached
if test -x "$GHOSTTY_BIN_DIR/ghostty"; and "$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --host="$ssh_target" >/dev/null 2>&1
set ssh_term xterm-ghostty
else if command -q infocmp
set -l ssh_terminfo
set -l ssh_cpath_dir
set -l ssh_cpath
set ssh_terminfo "$(infocmp -0 -x xterm-ghostty 2>/dev/null)"
if test -n "$ssh_terminfo"
echo "Setting up xterm-ghostty terminfo on $ssh_hostname..." >&2
set ssh_cpath_dir (mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null; or echo "/tmp/ghostty-ssh-$ssh_user."(random))
set ssh_cpath "$ssh_cpath_dir/socket"
if echo "$ssh_terminfo" | command ssh $ssh_opts -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s $argv '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null
set ssh_term xterm-ghostty
set -a ssh_opts -o "ControlPath=$ssh_cpath"
# Cache successful installation
if test -x "$GHOSTTY_BIN_DIR/ghostty"
"$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --add="$ssh_target" >/dev/null 2>&1; or true
end
else
echo "Warning: Failed to install terminfo." >&2
end
else
echo "Warning: Could not generate terminfo data." >&2
end
else
echo "Warning: ghostty command not available for cache management." >&2
end
end
end
# Execute SSH with TERM environment variable
TERM="$ssh_term" command ssh $ssh_opts $argv
end
end
# Setup prompt marking
function __ghostty_mark_prompt_start --on-event fish_prompt --on-event fish_posterror
# If we never got the output end event, then we need to send it now.
if test "$__ghostty_prompt_state" != prompt-start
echo -en "\e]133;D\a"
end
set --global __ghostty_prompt_state prompt-start
echo -en $__ghostty_prompt_start_mark
end
function __ghostty_mark_output_start --on-event fish_preexec
set --global __ghostty_prompt_state pre-exec
echo -en "\e]133;C\a"
end
function __ghostty_mark_output_end --on-event fish_postexec
set --global __ghostty_prompt_state post-exec
echo -en "\e]133;D;$status\a"
end
# Report pwd. This is actually built-in to fish but only for terminals
# that match an allowlist and that isn't us.
function __update_cwd_osc --on-variable PWD -d 'Notify capable terminals when $PWD changes'
if status --is-command-substitution || set -q INSIDE_EMACS
return
end
printf \e\]7\;file://%s%s\a $hostname (string escape --style=url $PWD)
end
# Enable fish to handle reflow because Ghostty clears the prompt on resize.
set --global fish_handle_reflow 1
# Initial calls for first prompt
if string match -q 'cursor*' -- $features
__ghostty_set_cursor_beam
end
__ghostty_mark_prompt_start
__update_cwd_osc
end
ghostty_exit
resources/shell-integration/nushell/vendor/autoload/ghostty.nu
Vendored
+110
View File
@@ -0,0 +1,110 @@
# Ghostty shell integration
export module ghostty {
def has_feature [feature: string] {
$feature in ($env.GHOSTTY_SHELL_FEATURES | default "" | split row ',')
}
# Wrap `ssh` with Ghostty TERMINFO support
export def --wrapped ssh [...args] {
mut ssh_env = {}
mut ssh_opts = []
# `ssh-env`: use xterm-256color and propagate COLORTERM/TERM_PROGRAM vars
if (has_feature "ssh-env") {
$ssh_env.TERM = "xterm-256color"
$ssh_opts = [
"-o" "SetEnv COLORTERM=truecolor"
"-o" "SendEnv TERM_PROGRAM TERM_PROGRAM_VERSION"
]
}
# `ssh-terminfo`: auto-install xterm-ghostty terminfo on remote hosts
if (has_feature "ssh-terminfo") {
let ghostty = ($env.GHOSTTY_BIN_DIR? | default "") | path join "ghostty"
let ssh_cfg = ^ssh -G ...$args
| lines
| parse "{key} {value}"
| where key in ["user" "hostname"]
| select key value
| transpose -rd
| default {user: $env.USER hostname: "localhost"}
let ssh_id = $"($ssh_cfg.user)@($ssh_cfg.hostname)"
if (^$ghostty "+ssh-cache" $"--host=($ssh_id)" | complete | $in.exit_code == 0) {
$ssh_env.TERM = "xterm-ghostty"
} else {
$ssh_env.TERM = "xterm-256color"
let terminfo = try {
^infocmp -0 -x xterm-ghostty
} catch {
print -e "infocmp failed, using xterm-256color"
}
if ($terminfo | is-not-empty) {
print $"Setting up xterm-ghostty terminfo on ($ssh_cfg.hostname)..."
let ctrl_path = (
mktemp -td $"ghostty-ssh-($ssh_cfg.user).XXXXXX"
| path join "socket"
)
let remote_args = $ssh_opts ++ [
"-o" "ControlMaster=yes"
"-o" $"ControlPath=($ctrl_path)"
"-o" "ControlPersist=60s"
] ++ $args
$terminfo | ^ssh ...$remote_args '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1'
| complete
| if $in.exit_code == 0 {
^$ghostty "+ssh-cache" $"--add=($ssh_id)" e>| print -e
$ssh_env.TERM = "xterm-ghostty"
$ssh_opts = ($ssh_opts ++ ["-o" $"ControlPath=($ctrl_path)"])
} else {
print -e "terminfo install failed, using xterm-256color"
}
}
}
}
let ssh_args = $ssh_opts ++ $args
with-env $ssh_env {
^ssh ...$ssh_args
}
}
# Wrap `sudo` to preserve Ghostty's TERMINFO environment variable
export def --wrapped sudo [...args] {
mut sudo_args = $args
if (has_feature "sudo") {
# Extract just the sudo options (before the command)
let sudo_options = (
$args | take until {|arg|
not (($arg | str starts-with "-") or ($arg | str contains "="))
}
)
# Prepend TERMINFO preservation flag if not using sudoedit
if (not ("-e" in $sudo_options or "--edit" in $sudo_options)) {
$sudo_args = ($args | prepend "--preserve-env=TERMINFO")
}
}
^sudo ...$sudo_args
}
}
# Clean up XDG_DATA_DIRS by removing GHOSTTY_SHELL_INTEGRATION_XDG_DIR
if 'GHOSTTY_SHELL_INTEGRATION_XDG_DIR' in $env {
if 'XDG_DATA_DIRS' in $env {
$env.XDG_DATA_DIRS = ($env.XDG_DATA_DIRS | str replace $"($env.GHOSTTY_SHELL_INTEGRATION_XDG_DIR):" "")
}
hide-env GHOSTTY_SHELL_INTEGRATION_XDG_DIR
}
resources/shell-integration/zsh/.zshenv
+61
View File
@@ -0,0 +1,61 @@
# Based on (started as) a copy of Kitty's zsh integration. Kitty is
# distributed under GPLv3, so this file is also distributed under GPLv3.
# The license header is reproduced below:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This script is sourced automatically by zsh when ZDOTDIR is set to this
# directory. It therefore assumes it's running within our shell integration
# environment and should not be sourced manually (unlike ghostty-integration).
#
# This file can get sourced with aliases enabled. To avoid alias expansion
# we quote everything that can be quoted. Some aliases will still break us
# though.
# Restore the original ZDOTDIR value if GHOSTTY_ZSH_ZDOTDIR is set.
# Otherwise, unset the ZDOTDIR that was set during shell injection.
if [[ -n "${GHOSTTY_ZSH_ZDOTDIR+X}" ]]; then
'builtin' 'export' ZDOTDIR="$GHOSTTY_ZSH_ZDOTDIR"
'builtin' 'unset' 'GHOSTTY_ZSH_ZDOTDIR'
else
'builtin' 'unset' 'ZDOTDIR'
fi
# Use try-always to have the right error code.
{
# Zsh treats unset ZDOTDIR as if it was HOME. We do the same.
#
# Source the user's .zshenv before sourcing ghostty-integration because the
# former might set fpath and other things without which ghostty-integration
# won't work.
#
# Use typeset in case we are in a function with warn_create_global in
# effect. Unlikely but better safe than sorry.
'builtin' 'typeset' _ghostty_file=${ZDOTDIR-$HOME}"/.zshenv"
# Zsh ignores unreadable rc files. We do the same.
# Zsh ignores rc files that are directories, and so does source.
[[ ! -r "$_ghostty_file" ]] || 'builtin' 'source' '--' "$_ghostty_file"
} always {
if [[ -o 'interactive' ]]; then
# ${(%):-%x} is the path to the current file.
# On top of it we add :A:h to get the directory.
'builtin' 'typeset' _ghostty_file="${${(%):-%x}:A:h}"/ghostty-integration
if [[ -r "$_ghostty_file" ]]; then
'builtin' 'autoload' '-Uz' '--' "$_ghostty_file"
"${_ghostty_file:t}"
'builtin' 'unfunction' '--' "${_ghostty_file:t}"
fi
fi
'builtin' 'unset' '_ghostty_file'
}
resources/shell-integration/zsh/ghostty-integration
+458
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@@ -0,0 +1,458 @@
# vim:ft=zsh
#
# Based on (started as) a copy of Kitty's zsh integration. Kitty is
# distributed under GPLv3, so this file is also distributed under GPLv3.
# The license header is reproduced below:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Enables integration between zsh and ghostty.
#
# This is an autoloadable function. It's invoked automatically in shells
# directly spawned by Ghostty but not in any other shells. For example, running
# `exec zsh`, `sudo -E zsh`, `tmux`, or plain `zsh` will create a shell where
# ghostty-integration won't automatically run. Zsh users who want integration with
# Ghostty in all shells should add the following lines to their .zshrc:
#
# if [[ -n $GHOSTTY_RESOURCES_DIR ]]; then
# source "$GHOSTTY_RESOURCES_DIR"/shell-integration/zsh/ghostty-integration
# fi
#
# Implementation note: We can assume that alias expansion is disabled in this
# file, so no need to quote defensively. We still have to defensively prefix all
# builtins with `builtin` to avoid accidentally invoking user-defined functions.
# We avoid `function` reserved word as an additional defensive measure.
# Note that updating options with `builtin emulate -L zsh` affects the global options
# if it's called outside of a function. So nearly all code has to be in functions.
_entrypoint() {
builtin emulate -L zsh -o no_warn_create_global -o no_aliases
[[ -o interactive ]] || builtin return 0 # non-interactive shell
(( ! $+_ghostty_state )) || builtin return 0 # already initialized
# We require zsh 5.1+ (released Sept 2015) for features like functions_source,
# introspection arrays, and array pattern substitution.
if ! { builtin autoload -- is-at-least 2>/dev/null && is-at-least 5.1; }; then
builtin echo "Zsh ${ZSH_VERSION} is too old for ghostty shell integration (5.1+ required)" >&2
builtin return 1
fi
# 0: no OSC 133 [AC] marks have been written yet.
# 1: the last written OSC 133 C has not been closed with D yet.
# 2: none of the above.
builtin typeset -gi _ghostty_state
# Attempt to create a writable file descriptor to the TTY so that we can print
# to the TTY later even when STDOUT is redirected. This code is fairly subtle.
#
# - It's tempting to do `[[ -t 1 ]] && exec {_ghostty_state}>&1` but we cannot do this
# because it'll create a file descriptor >= 10 without O_CLOEXEC. This file
# descriptor will leak to child processes.
# - If we do `exec {3}>&1`, the file descriptor won't leak to the child processes
# but it'll still leak if the current process is replaced with another. In
# addition, it'll break user code that relies on fd 3 being available.
# - Zsh doesn't expose dup3, which would have allowed us to copy STDOUT with
# O_CLOEXEC. The only way to create a file descriptor with O_CLOEXEC is via
# sysopen.
# - `zmodload zsh/system` and `sysopen -o cloexec -wu _ghostty_fd -- /dev/tty` can
# fail with an error message to STDERR (the latter can happen even if /dev/tty
# is writable), hence the redirection of STDERR. We do it for the whole block
# for performance reasons (redirections are slow).
# - We must open the file descriptor right here rather than in _ghostty_deferred_init
# because there are broken zsh plugins out there that run `exec {fd}< <(cmd)`
# and then close the file descriptor more than once while suppressing errors.
# This could end up closing our file descriptor if we opened it in
# _ghostty_deferred_init.
typeset -gi _ghostty_fd
{
builtin zmodload zsh/system && (( $+builtins[sysopen] )) && {
{ [[ -w $TTY ]] && builtin sysopen -o cloexec -wu _ghostty_fd -- $TTY } ||
{ [[ -w /dev/tty ]] && builtin sysopen -o cloexec -wu _ghostty_fd -- /dev/tty }
}
} 2>/dev/null || (( _ghostty_fd = 1 ))
# Defer initialization so that other zsh init files can be configure
# the integration.
builtin typeset -ag precmd_functions
precmd_functions+=(_ghostty_deferred_init)
}
_ghostty_deferred_init() {
builtin emulate -L zsh -o no_warn_create_global -o no_aliases
# Enable semantic markup with OSC 133.
_ghostty_precmd() {
builtin local -i cmd_status=$?
builtin emulate -L zsh -o no_warn_create_global -o no_aliases
# Don't write OSC 133 D when our precmd handler is invoked from zle.
# Some plugins do that to update prompt on cd.
if ! builtin zle; then
# This code works incorrectly in the presence of a precmd or chpwd
# hook that prints. For example, sindresorhus/pure prints an empty
# line on precmd and marlonrichert/zsh-snap prints $PWD on chpwd.
# We'll end up writing our OSC 133 D mark too late.
#
# Another failure mode is when the output of a command doesn't end
# with LF and prompst_sp is set (it is by default). In this case
# we'll incorrectly state that '%' from prompt_sp is a part of the
# command's output.
if (( _ghostty_state == 1 )); then
# The last written OSC 133 C has not been closed with D yet.
# Close it and supply status.
builtin print -nu $_ghostty_fd '\e]133;D;'$cmd_status'\a'
(( _ghostty_state = 2 ))
elif (( _ghostty_state == 2 )); then
# There might be an unclosed OSC 133 C. Close that.
builtin print -nu $_ghostty_fd '\e]133;D\a'
fi
fi
builtin local mark1=$'%{\e]133;A;cl=line\a%}'
if [[ -o prompt_percent ]]; then
builtin typeset -g precmd_functions
if [[ ${precmd_functions[-1]} == _ghostty_precmd ]]; then
# This is the best case for us: we can add our marks to PS1 and
# PS2. This way our marks will be printed whenever zsh
# redisplays prompt: on reset-prompt, on SIGWINCH, and on
# SIGCHLD if notify is set. Themes that update prompt
# asynchronously from a `zle -F` handler might still remove our
# marks. Oh well.
# Restore PS1/PS2 to their pre-mark state if nothing else has
# modified them since we last added marks. This avoids exposing
# PS1 with our marks to other hooks (which can break themes like
# Pure that use pattern matching to strip/rebuild the prompt).
# If PS1 was modified (by a theme, async update, etc.), we
# keep the modified version, prioritizing the theme's changes.
builtin local ps1_changed=0
if [[ -n ${_ghostty_saved_ps1+x} ]]; then
if [[ $PS1 == $_ghostty_marked_ps1 ]]; then
PS1=$_ghostty_saved_ps1
PS2=$_ghostty_saved_ps2
elif [[ $PS1 != $_ghostty_saved_ps1 ]]; then
ps1_changed=1
fi
fi
# Save the clean PS1/PS2 before we add marks.
_ghostty_saved_ps1=$PS1
_ghostty_saved_ps2=$PS2
# Add our marks. Since we always start from a clean PS1
# (either restored above or freshly set by a theme), we can
# unconditionally add mark1 and markB.
builtin local mark2=$'%{\e]133;A;k=s\a%}'
builtin local markB=$'%{\e]133;B\a%}'
PS1=${mark1}${PS1}${markB}
# Handle multiline prompts by marking newline-separated
# continuation lines with k=s (mark2). We skip the newline
# immediately after mark1 to avoid introducing a double
# newline due to OSC 133;A's fresh-line behavior.
#
# We skip this when PS1 changed because injecting marks into
# newlines can break pattern matching in themes that
# strip/rebuild the prompt dynamically (e.g., Pure).
if (( ! ps1_changed )) && [[ $PS1 == *$'\n'* ]]; then
if [[ $PS1 == ${mark1}$'\n'* ]]; then
builtin local rest=${PS1#${mark1}$'\n'}
if [[ $rest == *$'\n'* ]]; then
PS1=${mark1}$'\n'${rest//$'\n'/$'\n'${mark2}}
fi
else
PS1=${PS1//$'\n'/$'\n'${mark2}}
fi
fi
# PS2 mark is needed when clearing the prompt on resize
PS2=${mark2}${PS2}${markB}
# Save the marked PS1 so we can detect modifications
# by other hooks in the next cycle.
_ghostty_marked_ps1=$PS1
(( _ghostty_state = 2 ))
else
# If our precmd hook is not the last, we cannot rely on prompt
# changes to stick, so we don't even try. At least we can move
# our hook to the end to have better luck next time. If there is
# another piece of code that wants to take this privileged
# position, this won't work well. We'll break them as much as
# they are breaking us.
precmd_functions=(${precmd_functions:#_ghostty_precmd} _ghostty_precmd)
# Plugins that invoke precmd hooks from zle do that before zle
# is trashed. This means that the cursor is in the middle of
# BUFFER and we cannot print our mark there. Prompt might
# already have a mark, so the following reset-prompt will write
# it. If it doesn't, there is nothing we can do.
if ! builtin zle; then
builtin print -rnu $_ghostty_fd -- $mark1[3,-3]
(( _ghostty_state = 2 ))
fi
fi
elif ! builtin zle; then
# Without prompt_percent we cannot patch prompt. Just print the
# mark, except when we are invoked from zle. In the latter case we
# cannot do anything.
builtin print -rnu $_ghostty_fd -- $mark1[3,-3]
(( _ghostty_state = 2 ))
fi
}
_ghostty_preexec() {
builtin emulate -L zsh -o no_warn_create_global -o no_aliases
# Restore the original PS1/PS2 if nothing else has modified them
# since our precmd added marks. This ensures other preexec hooks
# see a clean PS1 without our marks. If PS1 was modified (e.g.,
# by an async theme update), we leave it alone.
if [[ -n ${_ghostty_saved_ps1+x} && $PS1 == $_ghostty_marked_ps1 ]]; then
PS1=$_ghostty_saved_ps1
PS2=$_ghostty_saved_ps2
fi
# This will work incorrectly in the presence of a preexec hook that
# prints. For example, if MichaelAquilina/zsh-you-should-use installs
# its preexec hook before us, we'll incorrectly mark its output as
# belonging to the command (as if the user typed it into zle) rather
# than command output.
builtin print -nu $_ghostty_fd '\e]133;C\a'
(( _ghostty_state = 1 ))
}
# Enable reporting current working dir to terminal. Ghostty supports
# the kitty-shell-cwd format.
_ghostty_report_pwd() { builtin print -nu $_ghostty_fd '\e]7;kitty-shell-cwd://'"$HOST""$PWD"'\a'; }
chpwd_functions=(${chpwd_functions[@]} "_ghostty_report_pwd")
# An executed program could change cwd and report the changed cwd, so also report cwd at each new prompt
# as in this case chpwd_functions is insufficient. chpwd_functions is still needed for things like: cd x && something
functions[_ghostty_precmd]+="
_ghostty_report_pwd"
_ghostty_report_pwd
if [[ "$GHOSTTY_SHELL_FEATURES" == *"title"* ]]; then
# Enable terminal title changes, formatted for user-friendly display.
functions[_ghostty_precmd]+="
builtin print -rnu $_ghostty_fd \$'\\e]2;'\"\${(%):-%(4~|…/%3~|%~)}\"\$'\\a'"
functions[_ghostty_preexec]+="
builtin print -rnu $_ghostty_fd \$'\\e]2;'\"\${1//[[:cntrl:]]}\"\$'\\a'"
fi
if [[ "$GHOSTTY_SHELL_FEATURES" == *"cursor"* ]]; then
# Enable cursor shape changes depending on the current keymap.
# This implementation leaks blinking block cursor into external commands
# executed from zle. For example, users of fzf-based widgets may find
# themselves with a blinking block cursor within fzf.
_ghostty_zle_line_init _ghostty_zle_line_finish _ghostty_zle_keymap_select() {
builtin local steady=0
[[ "$GHOSTTY_SHELL_FEATURES" == *"cursor:steady"* ]] && steady=1
case ${KEYMAP-} in
vicmd|visual) builtin print -nu "$_ghostty_fd" "\e[$(( 1 + steady )) q" ;; # block
*) builtin print -nu "$_ghostty_fd" "\e[$(( 5 + steady )) q" ;; # bar
esac
}
# Restore the default shape before executing an external command
functions[_ghostty_preexec]+="
builtin print -rnu $_ghostty_fd \$'\\e[0 q'"
fi
# Emit semantic prompt markers at line-init if PS1 doesn't contain our
# marks. This ensures the terminal sees prompt markers even if another
# plugin (like zinit or oh-my-posh) regenerated PS1 after our precmd ran.
# We use 133;P instead of 133;A to avoid fresh-line behavior which would
# disrupt the display since the prompt has already been drawn. We also
# emit 133;B to mark the input area, which is needed for click-to-move.
(( $+functions[_ghostty_zle_line_init] )) || _ghostty_zle_line_init() { builtin true; }
functions[_ghostty_zle_line_init]="
if [[ \$PS1 != *$'%{\\e]133;A'* ]]; then
builtin print -nu \$_ghostty_fd '\\e]133;P;k=i\\a\\e]133;B\\a'
fi
"${functions[_ghostty_zle_line_init]}
# Add Ghostty binary to PATH if the path feature is enabled
if [[ "$GHOSTTY_SHELL_FEATURES" == *"path"* ]] && [[ -n "$GHOSTTY_BIN_DIR" ]]; then
if [[ ":$PATH:" != *":$GHOSTTY_BIN_DIR:"* ]]; then
builtin export PATH="$PATH:$GHOSTTY_BIN_DIR"
fi
fi
# Sudo
if [[ "$GHOSTTY_SHELL_FEATURES" == *"sudo"* ]] && [[ -n "$TERMINFO" ]]; then
# Wrap `sudo` command to ensure Ghostty terminfo is preserved
function sudo() {
builtin local sudo_has_sudoedit_flags="no"
for arg in "$@"; do
# Check if argument is '-e' or '--edit' (sudoedit flags)
if [[ "$arg" == "-e" || $arg == "--edit" ]]; then
sudo_has_sudoedit_flags="yes"
builtin break
fi
# Check if argument is neither an option nor a key-value pair
if [[ "$arg" != -* && "$arg" != *=* ]]; then
builtin break
fi
done
if [[ "$sudo_has_sudoedit_flags" == "yes" ]]; then
builtin command sudo "$@";
else
builtin command sudo --preserve-env=TERMINFO "$@";
fi
}
fi
# SSH Integration
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-* ]]; then
function ssh() {
emulate -L zsh
setopt local_options no_glob_subst
local ssh_term ssh_opts
ssh_term="xterm-256color"
ssh_opts=()
# Configure environment variables for remote session
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-env* ]]; then
ssh_opts+=(-o "SetEnv COLORTERM=truecolor")
ssh_opts+=(-o "SendEnv TERM_PROGRAM TERM_PROGRAM_VERSION")
fi
# Install terminfo on remote host if needed
if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-terminfo* ]]; then
local ssh_user ssh_hostname
while IFS=' ' read -r ssh_key ssh_value; do
case "$ssh_key" in
user) ssh_user="$ssh_value" ;;
hostname) ssh_hostname="$ssh_value" ;;
esac
[[ -n "$ssh_user" && -n "$ssh_hostname" ]] && break
done < <(command ssh -G "$@" 2>/dev/null)
if [[ -n "$ssh_hostname" ]]; then
local ssh_target="${ssh_user}@${ssh_hostname}"
# Check if terminfo is already cached
if "$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --host="$ssh_target" >/dev/null 2>&1; then
ssh_term="xterm-ghostty"
elif (( $+commands[infocmp] )); then
local ssh_terminfo ssh_cpath_dir ssh_cpath
ssh_terminfo=$(infocmp -0 -x xterm-ghostty 2>/dev/null)
if [[ -n "$ssh_terminfo" ]]; then
print "Setting up xterm-ghostty terminfo on $ssh_hostname..." >&2
ssh_cpath_dir=$(mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null) || ssh_cpath_dir="/tmp/ghostty-ssh-$ssh_user.$$"
ssh_cpath="$ssh_cpath_dir/socket"
if builtin print -r "$ssh_terminfo" | command ssh "${ssh_opts[@]}" -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null; then
ssh_term="xterm-ghostty"
ssh_opts+=(-o "ControlPath=$ssh_cpath")
# Cache successful installation
"$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
else
print "Warning: Failed to install terminfo." >&2
fi
else
print "Warning: Could not generate terminfo data." >&2
fi
else
print "Warning: ghostty command not available for cache management." >&2
fi
fi
fi
# Execute SSH with TERM environment variable
TERM="$ssh_term" command ssh "${ssh_opts[@]}" "$@"
}
fi
# Some zsh users manually run `source ~/.zshrc` in order to apply rc file
# changes to the current shell. This is a terrible practice that breaks many
# things, including our shell integration. For example, Oh My Zsh and Prezto
# (both very popular among zsh users) will remove zle-line-init and
# zle-line-finish hooks if .zshrc is manually sourced. Prezto will also remove
# zle-keymap-select.
#
# Another common (and much more robust) way to apply rc file changes to the
# current shell is `exec zsh`. This will remove our integration from the shell
# unless it's explicitly invoked from .zshrc. This is not an issue with
# `exec zsh` but rather with our implementation of automatic shell integration.
# In the ideal world we would use add-zle-hook-widget to hook zle-line-init
# and similar widget. This breaks user configs though, so we have do this
# horrible thing instead.
builtin local hook func widget orig_widget flag
for hook in line-init line-finish keymap-select; do
func=_ghostty_zle_${hook/-/_}
(( $+functions[$func] )) || builtin continue
widget=zle-$hook
if [[ $widgets[$widget] == user:azhw:* &&
$+functions[add-zle-hook-widget] -eq 1 ]]; then
# If the widget is already hooked by add-zle-hook-widget at the top
# level, add our hook at the end. We MUST do it this way. We cannot
# just wrap the widget ourselves in this case because it would
# trigger bugs in add-zle-hook-widget.
add-zle-hook-widget $hook $func
else
if (( $+widgets[$widget] )); then
# There is a widget but it's not from add-zle-hook-widget. We
# can rename the original widget, install our own and invoke
# the original when we are called.
#
# Note: The leading dot is to work around bugs in
# zsh-syntax-highlighting.
orig_widget=._ghostty_orig_$widget
builtin zle -A $widget $orig_widget
if [[ $widgets[$widget] == user:* ]]; then
# No -w here to preserve $WIDGET within the original widget.
flag=
else
flag=w
fi
functions[$func]+="
builtin zle $orig_widget -N$flag -- \"\$@\""
fi
builtin zle -N $widget $func
fi
done
if (( $+functions[_ghostty_preexec] )); then
builtin typeset -ag preexec_functions
preexec_functions+=(_ghostty_preexec)
fi
builtin typeset -ag precmd_functions
if (( $+functions[_ghostty_precmd] )); then
precmd_functions=(${precmd_functions:#_ghostty_deferred_init} _ghostty_precmd)
_ghostty_precmd
else
precmd_functions=(${precmd_functions:#_ghostty_deferred_init})
fi
# Unfunction _ghostty_deferred_init to save memory. Don't unfunction
# ghostty-integration though because decent public functions aren't supposed to
# to unfunction themselves when invoked. Unfunctioning is done by calling code.
builtin unfunction _ghostty_deferred_init
}
_entrypoint