Greyson Parrelli
738cead680
Uses libghostty-vt (the API Ghostty documents for external embedders) for the terminal core. Ghostty's other C API, ghostty.h, exposes a full terminal surface but only supports macOS and iOS platform tags, so it cannot be embedded on Linux. We supply the layers libghostty-vt deliberately leaves out: PTY and process management, a Cairo/Pango cell renderer, and a GTK4/libadwaita UI with a Zen-style vertical tab sidebar. Nix pins the whole toolchain (Zig 0.16 via zig-overlay, GTK 4.22, libadwaita) so no host setup is needed.
98 lines
2.7 KiB
Nix
98 lines
2.7 KiB
Nix
{
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description = "Vertical-tab terminal built on libghostty-vt";
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inputs = {
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# Ghostty tracks nixpkgs-unstable to get GTK 4.20 / GNOME 49. We follow
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# suit so that our zig-gobject bindings (shared with Ghostty) match the
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# GObject introspection data of the GTK we link against.
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nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
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flake-compat = {
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url = "github:edolstra/flake-compat";
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flake = false;
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};
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systems = {
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url = "github:nix-systems/default";
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flake = false;
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};
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# Zig 0.16.0 is not in nixpkgs yet; libghostty-vt requires it.
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zig = {
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url = "github:mitchellh/zig-overlay";
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inputs = {
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nixpkgs.follows = "nixpkgs";
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flake-compat.follows = "flake-compat";
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systems.follows = "systems";
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};
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};
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};
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outputs = {
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self,
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nixpkgs,
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zig,
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systems,
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...
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}: let
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inherit (nixpkgs) lib legacyPackages;
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forAllSystems = f:
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lib.genAttrs (import systems) (system: f legacyPackages.${system} system);
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in {
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devShells = forAllSystems (pkgs: system: {
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default = pkgs.mkShell {
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name = "vtabs";
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nativeBuildInputs = [
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zig.packages.${system}."0.16.0"
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pkgs.pkg-config
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pkgs.gdb
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# Used by ./shot.sh to run the app inside a throwaway headless
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# compositor and screenshot it, so UI can be checked without
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# touching the developer's real session.
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pkgs.sway
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pkgs.grim
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pkgs.wtype
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];
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buildInputs = with pkgs; [
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# GTK4 + libadwaita, the same native UI stack Ghostty uses on Linux.
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gtk4
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libadwaita
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glib
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gobject-introspection
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pango
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cairo
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harfbuzz
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gdk-pixbuf
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graphene
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# Windowing backends GTK links against.
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wayland
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libxkbcommon
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libx11
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# Font stack used by Pango for glyph rasterization.
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fontconfig
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freetype
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# Icon themes so the app doesn't render missing-image icons.
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adwaita-icon-theme
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hicolor-icon-theme
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];
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shellHook = ''
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# GTK needs to find icon themes and schemas at runtime when the app
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# is launched straight out of the dev shell rather than installed.
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export XDG_DATA_DIRS="${pkgs.gtk4}/share/gsettings-schemas/${pkgs.gtk4.name}:${pkgs.adwaita-icon-theme}/share:${pkgs.hicolor-icon-theme}/share:$XDG_DATA_DIRS"
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export GSETTINGS_SCHEMA_DIR="${pkgs.gtk4}/share/gsettings-schemas/${pkgs.gtk4.name}/glib-2.0/schemas"
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'';
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};
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});
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formatter = forAllSystems (pkgs: _: pkgs.alejandra);
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};
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}
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