ddidderr
e4a6ee7bf4
Intentional deviation from Ghostty 1.3.1 (DEVIANT_FIXES.md row 38). Zig's Theme.parseCLI (config/Config.zig:9788-9799) treats any value containing ',', '=' or ':' as a light/dark pair. Every absolute Windows path (C:\themes\x, \\?\C:\..., \\server\share\x) contains a colon, so Ghostty on Windows rejects all absolute theme paths. A value that is a single Windows absolute path is now taken as a theme path; the light:/dark: pair syntax still works, including with drive paths as values. Test Plan: - cargo test -p ghostty-config windows_absolute_path_detection theme_windows_absolute_path_and_pair_with_paths
ghostty-rs
A Rust rewrite of the Ghostty 1.3.1 terminal emulator for Linux (GTK4 + libadwaita, OpenGL).
It aims for behavioural parity with Ghostty: the same configuration file
format, options, defaults and documentation; the same keybindings and
actions; the same ghostty +action CLI; the same terminal emulation
(including kitty keyboard/graphics protocols, OSC 8 hyperlinks, semantic
prompts, synchronized output, tmux control mode); the same shell
integration, themes and terminfo.
All of Ghostty's Zig code is ported: the Linux GTK app (verified at runtime
and pixel-identical to Ghostty 1.3.1), the libghostty and libghostty-vt
C APIs (same headers/ABI), WASM, crash reporting, and the macOS
(Metal/CoreText) and Windows (ConPTY) code paths. macOS and Windows are
compile-checked on Linux (just check-macos, just check-windows); the
Windows test suites also run under Wine (just test-windows-wine), macOS has
not been run natively. The Swift macOS app is not part of the port; it is a
client of the libghostty C API.
Building and running
Requirements: Rust (edition 2024), GTK ≥ 4.14, libadwaita ≥ 1.5,
fontconfig, freetype, harfbuzz, Oniguruma, libepoxy, blueprint-compiler
and glib-compile-resources at build time.
cargo run # open a terminal window running your shell
cargo run -- -e htop # run a command
cargo run -- +list-themes # CLI actions work like Ghostty's
cargo run --profile production # optimized build (LTO, no debug assertions)
Dev-profile builds (cargo run) find resources/ (shell integration,
themes, terminfo) automatically; other profiles use the installed
resources or GHOSTTY_RESOURCES_DIR. Your existing Ghostty config
(~/.config/ghostty/config[.ghostty]) is used as-is.
Installing
just install /usr/local # binary, share/ghostty, terminfo, desktop files,
# completions, man pages, translations, icons
just install /usr false true # system-package layout (lib/systemd/user)
Testing
just test # cargo test --workspace (~3000 tests)
just clippy # clippy with -D warnings
Every Zig test block of the ported files was ported to a Rust test.
crates/ghostty-core/tests holds end-to-end tests that drive the real core,
terminal and a real pty through a fake app runtime. ghostty-bench mirrors
Ghostty's benchmark tool; terminal stream throughput is on par with the Zig
build (see docs/rewrite/notes/perf-P1.md).
Verification
just difftest— differential fuzzing of the terminal core against Ghostty's own Zig code (sets up Zig 0.15.2 undertarget/).just visual-parity— pixel comparison against the installed Ghostty in a headless nested weston.just test-windows-wine— runs the Windows test suites (incl. ConPTY /cmd.exeend-to-end tests) under Wine with mingw-w64.just check-all— native gate plus macOS/Windows/WASM checks.
Documentation
docs/rewrite/ARCHITECTURE.md– top-down decomposition, crate map, key design decisions, intentional omissionsdocs/rewrite/STATUS.md– work package historydocs/rewrite/DEVIANT_FIXES.md– every intentional deviation from Ghostty (upstream bugs fixed instead of replicated; commits titledfix-deviant(...))docs/rewrite/KNOWN_DIFFERENCES.md– remaining minor differencesdocs/rewrite/notes/– per-crate porting notes, deviations from Zig, audits and verification reports
License
MIT, like Ghostty. Bundled fonts and themes carry their own licenses (see
crates/ghostty-font/res/ and resources/LICENSE-iTerm2-Color-Schemes).