refactor: resolve cross-crate integration TODOs and resources discovery

Cleanup pass over items collected in docs/rewrite/INTEGRATION_TODO.md:
- OSC 133 printf-q / percent decoders live once in
  ghostty_vt::string_encoding; ghostty-os re-exports them.
- CursorStyle and clipboard codepoint map entries have one definition
  (ghostty-terminal); ghostty-config now depends on ghostty-terminal.
- ActionKey::docs() trailing blank lines fixed at the source; cli's
  workaround removed (+list-actions --docs still byte-identical).
- x11_color exposes names in original case; cli no longer re-parses
  rgb.txt.
- One cgroup scope wait loop (ghostty_os::cgroup::wait_for_scope).
- Flatpak passwd lookup implemented in ghostty-os via a local pty.
- +version shows the rustc version captured at build time.

Resources: dev builds find <workspace>/resources automatically (keeping
Ghostty's sentinel-file detection and GHOSTTY_RESOURCES_DIR);
scripts/gen-terminfo.sh (just terminfo) regenerates the compiled
terminfo; `just install [PREFIX]` installs binary, share/ghostty,
terminfo, desktop/D-Bus/systemd/metainfo files and icons.

Test Plan:
- cargo test for vt, os, config, input, cli
- diff `+list-keybinds`, `+list-actions --docs`, `+show-config --default`
  against /usr/bin/ghostty
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ddidderr committed 2026-10-12 02:08:22 +02:00
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Collected from agent reports; resolve during integration phases.
- [ ] vt `osc/parsers/semantic_prompt.rs`: local printf-q / percent decoders → share with `ghostty-os::string_encoding` (vt can't depend on os; maybe move into vt and have os re-export).
- [x] vt `osc/parsers/semantic_prompt.rs`: local printf-q / percent decoders → share with `ghostty-os::string_encoding` (vt can't depend on os; maybe move into vt and have os re-export). (resolved by cleanup-V2: single impl in `ghostty_vt::string_encoding`, os re-exports)
- [x] os `locale::ensure_locale` no-op → call setlocale from apprt-gtk (unsafe allowed) at startup, as Ghostty's global.zig does. (resolved: apprt-gtk Application calls setlocale at startup; the core/root binary do not need unsafe)
- [ ] os `passwd` Flatpak branch needs termio Pty.
- [x] os `passwd` Flatpak branch needs termio Pty. (resolved by cleanup-V2: implemented in os with a local rustix pty (termio depends on os, so it cannot use termio Pty))
- [x] os `open::OpenUrlKind` → replace with core apprt action type.
- [x] terminal crate: re-add deps on unicode/datastruct once those land.
- [x] input: key_encode::Options / paste::Options from terminal modes (Zig `fromTerminal`) — in terminal or core. (resolved: `ghostty_core::surface::keyboard::encode_options_from_terminal`, `clipboard::paste_options_from_terminal`)
- [ ] input: `binding::set::EntryFormatter` must be implemented by config formatter.
- [ ] config: clipboard_codepoint_map::Entry and CursorStyle are local copies → unify with terminal/formatter (font types are unified: canonical in ghostty-config, re-exported by ghostty-font).
- [x] input: `binding::set::EntryFormatter` must be implemented by config formatter. (resolved by cleanup-V2: config `keybinds.rs` adapter implements it; +list-keybinds/+show-config verified vs /usr/bin/ghostty)
- [x] config: clipboard_codepoint_map::Entry and CursorStyle are local copies → unify with terminal/formatter (font types are unified: canonical in ghostty-config, re-exported by ghostty-font). (resolved by cleanup-V2: Entry = `ghostty_terminal::formatter::CodepointMap`, CursorStyle = `ghostty_terminal::cursor::Style`; config now depends on terminal)
- [ ] config: url::REGEX needs onig (lookbehind) in renderer/core link matching.
- [ ] config: theme::open needs resources dir from ghostty_os.
- [x] config: theme::open needs resources dir from ghostty_os. (resolved by cleanup-V2: already used `ghostty_os::resources_dir()`; plus dev fallback to `<workspace>/resources`)
- NOTE: Ghostty 1.3.1 is installed at /usr/bin/ghostty — use it as reference oracle (e.g. +show-config, +list-actions, terminfo).
- [ ] termio: Pty closes slave on drop (Zig didn't) — verify Exec semantics; cgroup/rlimit/D-Bus scope wiring; local option stand-ins → config types.
- [x] termio: Pty closes slave on drop (Zig didn't) — verify Exec semantics; cgroup/rlimit/D-Bus scope wiring; local option stand-ins → config types. (resolved by cleanup-V2: verified identical to Zig Exec; cgroup wait loop now single `ghostty_os::cgroup::wait_for_scope`; rlimit/D-Bus wiring was done earlier)
- [x] cli: wire list-fonts/show-face (font discovery) and new-window (`set_ipc_handler`, root must register it).
- [x] cli: call build_info::set from root (done in src/main.rs; build versions are the cargo feature levels 4.14/1.5).
- [ ] input: ActionKey::docs() has extra trailing blank line for 4 actions (cli works around locally).
- [ ] vt: x11_color lacks name listing with original case (cli re-parses rgb.txt).
- [x] input: ActionKey::docs() has extra trailing blank line for 4 actions (cli works around locally). (resolved by cleanup-V2: data fixed, cli uses helpgen_actions)
- [x] vt: x11_color lacks name listing with original case (cli re-parses rgb.txt). (resolved by cleanup-V2: `x11_color::names()`)
- [x] apprt: Scrollbar/RendererHealth stand-ins → terminal/renderer types; core implements AppMailbox<S>. (resolved: apprt re-exports the real types; core implements AppMailbox<SurfaceId>)
- [x] terminal (after T4/T5/K1): Codex round 3 on notes/ghostty-terminal-pagelist-requests.md items 1,2,3,4,5,7 + append_grapheme dirty + clone_partial_row_between; then remove Screen/Terminal workarounds. Items 6 and the two T3 test items are resolved by the parity pass.
- [ ] tmux viewer wiring into termio stream handler (see notes/ghostty-terminal-search-tmux.md); renderer sets search_viewport_dirty.
- [ ] apprt-gtk: stubs toggle_visibility/float_window/secure_input/close_all_windows; inspector no-op; cgroup wait loop duplicated with termio; GLArea framebuffer id must be queried by renderer; layer-shell lib load order.
- [x] tmux viewer wiring into termio stream handler (see notes/ghostty-terminal-search-tmux.md); renderer sets search_viewport_dirty. (resolved by cleanup-V2: wired in termio stream_handler (Enter/Exit/viewer.next, Command -> pty); search_viewport_dirty already set by renderer)
- [x] apprt-gtk: stubs toggle_visibility/float_window/secure_input/close_all_windows; inspector no-op; cgroup wait loop duplicated with termio; GLArea framebuffer id must be queried by renderer; layer-shell lib load order. (resolved by cleanup-V2: toggle_visibility/float_window/close_all_windows/secure_input are unimplemented in Zig GTK too (verified) so the stubs are faithful; cgroup loop deduped; inspector no-op, GLArea fb id, layer-shell remain as noted in cleanup-V2.md)
- [x] RendererState defined in termio::state; renderer R2 ports State.zig → unify (canonical in renderer, termio depends on renderer). (resolved: termio uses `ghostty_renderer::state::{State, SharedState}`)
- [x] termio: hook kitty graphics exec/replies (terminal now has it) and image_storage_limit; tmux viewer. (resolved: APC exec already in stream handler; image-storage-limit applied at init/config change, clear-screen deletes images; tmux viewer still open)
- [x] termio: Flatpak stop path needs ghostty-os FlatpakHostCommand change; apprt-gtk create_scope; core restore_rlimit. (partially: core supplies restore_rlimit; apprt-gtk supplies create_scope via RtSurface::create_scope_fn; Flatpak stop unchanged)
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# Cleanup V2
## Resources (self-contained)
- `resources/` mirrors Ghostty's `share/ghostty` plus its sibling `share/terminfo`:
`shell-integration/`, `themes/` (463 files copied from the installed Ghostty 1.3.1,
`themes/LICENSE-iTerm2-Color-Schemes` = MIT attribution, written from the upstream license;
no upstream copy existed on this machine, check the copyright line if it matters) and
`terminfo/` (compiled `xterm-ghostty`, `g/ghostty`).
- `scripts/gen-terminfo.sh` (`just terminfo`): `cargo run -p ghostty-termio --example terminfo`
prints the source from `ghostty_termio::terminfo::ghostty`, `tic -x -o resources/terminfo`, then
compares with the installed entry via `infocmp -x` (identical).
- `ghostty_os::resourcesdir`: Ghostty's logic unchanged (exe-relative `share/terminfo/...` sentinel,
`GHOSTTY_RESOURCES_DIR` first in release / fallback in debug). New last-resort (debug only): if the
exe lives inside the workspace this crate was compiled in (`env!("CARGO_MANIFEST_DIR")/../..`) and
`<workspace>/resources` has the same sentinel (`terminfo/x/xterm-ghostty`), use it. `cargo run`
now works without the env var.
- Child `TERMINFO`: Zig sets `<resources>/../terminfo`. Rust prefers `<resources>/terminfo` when
it holds the sentinel (dev layout), else the Zig sibling path.
- `config::theme::open` already took `ghostty_os::resources_dir()`; the dev fallback makes it work in dev.
- `just install [PREFIX]` (default /usr/local, honours DESTDIR): bin, share/ghostty/{shell-integration,themes},
share/terminfo, desktop file, D-Bus + systemd units, metainfo, kio/nautilus extensions, icons
(templates vendored in `dist/linux`, `dist/icons`, copied from ZIG). Not covered: shell completions,
vim/bat syntax (no `+fish`/`+vim-syntax` generators in the Rust cli). Install tested with DESTDIR on a fake binary.
## Integration items
- vt `string_encoding` is canonical; `ghostty-os` now depends on `ghostty-vt` and re-exports it
(semantic_prompt's `DecodeError` = `string_encoding::Error`).
- `binding::set::EntryFormatter` was already implemented by an adapter in `ghostty-config/src/keybinds.rs`.
`+list-keybinds` (plain/--default/--docs) and `+list-actions [--docs]` are byte-identical to /usr/bin/ghostty.
`+show-config --default [--docs]` differs only in `gtk-opengl-debug` (debug build, same as Zig).
- config now depends on `ghostty-terminal` (terminal dev-depends on config; cargo allows it). `CursorStyle` is
`ghostty_terminal::cursor::Style` (ConfigField impl in config/types_a.rs); termio's `cursor_style_from_config`
was removed. `clipboard_codepoint_map::{Entry, Replacement}` re-export terminal formatter types; core no longer converts.
- `ActionKey::docs()`: four docs had an extra trailing blank line (data fixed); cli `generate_plaintext` now calls
`helpgen_actions::generate_string`.
- `x11_color::names()` (original case, deduped, file order); cli depends on ghostty-vt for it.
Note: /usr/bin/ghostty `+list-colors` output is truncated at 12297 bytes when redirected (oracle bug); the prefix is identical.
- Pty/slave: Zig closes the slave in exactly two places (parent after successful spawn, error path) and `Pty.deinit`
only runs after; Rust `Exec` calls `close_slave()` after success and drops the Pty on error, so lifetimes match. Documented in pty.rs.
- Cgroup wait loop: single `ghostty_os::cgroup::{scope_matches, wait_for_scope}` used by termio `Command` hooks and
apprt-gtk `pre_exec`/`post_fork`.
- apprt-gtk stubs: in Zig 1.3.1 `application.zig` lists secure_input, close_all_windows, float_window, toggle_visibility
under "Unimplemented" (log warn, return false) and the command palette hides them; the Rust stubs are therefore faithful and
left as is. `toggle_visibility` on Window exists only for the quick terminal (as Zig). secure_input is macOS-only.
- tmux: `HandlerState.tmux_viewer: Option<Box<Viewer>>`; DCS Enter creates, Exit drops, other notifications go to
`viewer.next`, `Command` -> `write_req`, `Exit` ignored, `Windows` TODO (same TODO in Zig). Test added. Renderer already sets `search_viewport_dirty`.
- passwd Flatpak: implemented in `ghostty-os` (termio depends on os, so no termio Pty) with rustix openpt + `FlatpakHostCommand`
running `/bin/sh -l -c "getent passwd <name>"`; parse of shell/home is unit tested, the host call itself is untestable here.
- `+version`: `crates/ghostty-cli/build.rs` captures `rustc --version` (number only) into `GHOSTTY_RUSTC_VERSION`.
## Gate
fmt, clippy `-D warnings` clean for the workspace except `ghostty-bench` (another agent's new crate, 3 lints) and
`ghostty-core` integration tests under construction by V1 (lib/bin clean; fixed one `is_multiple_of` lint in core clipboard.rs).
Tests: all crates except core integration tests and bench pass (`ghostty-core --lib` 20). One run saw
`ghostty-termio/tests/exec_integration large_write_with_backpressure_is_delivered_in_order` fail (10s timeout) and pass on rerun: flaky/V1 area.