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LGUG2Z
a86e2bdc63
On NixOS, running komorebi should take one flake input and one module line. The flake exports `services.komorebi` as nixosModules.default (and .komorebi). It adds the flake's overlay, which gains komorebi-full, installs komorebi and komorebic, and runs the daemon in every Plasma session as a systemd user unit, wanted by plasma-workspace.target and ordered after plasma-core.target, which Plasma orders after KWin. systemd starts a daemon that fails again; the exit status of a SIGTERM (130) counts as success, so a stopped unit is not failed. The unit's PATH is the one a terminal in the session has, instead of the few store paths NixOS gives a unit. The options are enable, package, logLevel and a read-only execStart, the command line the unit runs. There is no configFile: the daemon reads no configuration file yet, and an option that linked one would do nothing. nixos-module-eval evaluates seven scenarios as real NixOS systems and checks their assertions, the unit and execStart, with builtins.tryEval for the two that must not evaluate. Nothing in it builds a Linux package, so it runs on a Mac as well. The VM nodes import the module, so every suite runs komorebi as the module installs it. The headless node's komorebi@NAME runs execStart, which has --log-level, so the nodes set logLevel to debug and the suites stop passing it; latency, which times the daemon, keeps the default level. The session node starts the module's unit at login; render-smoke turns it off, since a tiled terminal would cover the desktop it looks at. A new fast suite, vm-module, logs in to Plasma and checks that the unit runs the daemon with the module's log level and PATH, that a window opened in the session is tiled, that a killed daemon is started again, and that a stop is not a failure. docs/installation.md covers NixOS first, and building from source on other distributions. There is no binary cache: the Komorebi license does not allow third parties to redistribute binaries.
328 lines
11 KiB
Nix
328 lines
11 KiB
Nix
{
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description = "komorebi for KDE Plasma";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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flake-parts.url = "github:hercules-ci/flake-parts";
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crane.url = "github:ipetkov/crane";
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rust-overlay.url = "github:oxalica/rust-overlay";
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rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
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treefmt-nix.url = "github:numtide/treefmt-nix";
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treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
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git-hooks-nix.url = "github:cachix/git-hooks.nix";
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git-hooks-nix.inputs.nixpkgs.follows = "nixpkgs";
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};
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outputs =
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inputs@{
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self,
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nixpkgs,
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flake-parts,
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crane,
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rust-overlay,
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...
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}:
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let
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mkPkgs =
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system:
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import nixpkgs {
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inherit system;
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overlays = [ (import rust-overlay) ];
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};
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mkKomorebiPackages =
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{ pkgs }:
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let
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toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
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craneLib = (crane.mkLib pkgs).overrideToolchain toolchain;
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# rustfmt.toml uses options only a nightly rustfmt knows
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craneLibFmt = (crane.mkLib pkgs).overrideToolchain (
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pkgs.rust-bin.nightly.latest.minimal.override { extensions = [ "rustfmt" ]; }
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);
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src = pkgs.lib.cleanSourceWith {
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src = ./.;
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filter =
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path: type:
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(craneLib.filterCargoSources path type)
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# the script komorebi loads into KWin, which the daemon includes
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|| (pkgs.lib.hasSuffix ".js" path)
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# the messages the tests of the bridge and of the daemon share
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|| (pkgs.lib.hasSuffix ".json" path);
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};
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commonArgs = {
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inherit src;
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pname = "komorebi-workspace";
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version = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).workspace.package.version;
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strictDeps = true;
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# The version crate wants a commit at compile time. It is a constant here, so that the
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# dependencies and every check are the same derivations for every commit; only the final
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# build below knows the real one.
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COMMIT_HASH = "nix-check";
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};
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cargoArtifacts = craneLib.buildDepsOnly commonArgs;
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individualCrateArgs = commonArgs // {
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inherit cargoArtifacts;
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doCheck = false;
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doDoc = false;
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};
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fullBuild = craneLib.buildPackage (
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individualCrateArgs
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// {
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COMMIT_HASH = self.rev or (pkgs.lib.removeSuffix "-dirty" self.dirtyRev);
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}
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);
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extractBinary =
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binaryName:
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pkgs.runCommand "komorebi-${binaryName}" { meta = fullBuild.meta // { }; } ''
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mkdir -p $out/bin
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cp ${fullBuild}/bin/${binaryName} $out/bin/
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'';
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in
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{
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inherit
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craneLib
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craneLibFmt
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src
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commonArgs
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individualCrateArgs
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fullBuild
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;
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komorebi = extractBinary "komorebi";
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komorebic = extractBinary "komorebic";
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};
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in
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flake-parts.lib.mkFlake { inherit inputs; } {
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# Linux is what komorebi runs on. An Apple silicon Mac gets the dev shell, the formatter and the
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# checks, which run the same tests against the fake desktop. nixpkgs dropped x86_64-darwin in
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# 26.11.
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systems = [
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"aarch64-linux"
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"x86_64-linux"
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"aarch64-darwin"
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];
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imports = [
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inputs.treefmt-nix.flakeModule
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inputs.git-hooks-nix.flakeModule
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];
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perSystem =
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{
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config,
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lib,
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system,
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...
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}:
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let
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pkgs = mkPkgs system;
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build = mkKomorebiPackages { inherit pkgs; };
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isLinux = pkgs.stdenv.hostPlatform.isLinux;
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# the guests install komorebi through the module, as a NixOS user does
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komorebiModule = self.nixosModules.default;
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# a Mac runs the guests under HVF, which is slower than KVM
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vm = import ./nix/tests/vm {
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hostPkgs = pkgs;
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inherit komorebiModule;
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scale = if isLinux then 1 else 1.5;
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};
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nightlyRustfmt = pkgs.rust-bin.nightly.latest.rustfmt;
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nightlyToolchain = pkgs.rust-bin.nightly.latest.default;
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rustToolchainWithNightlyRustfmt = pkgs.symlinkJoin {
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name = "rust-toolchain-with-nightly-rustfmt";
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paths = [
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nightlyRustfmt
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(pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml)
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];
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};
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# cargo-udeps needs a nightly compiler
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cargo-udeps = pkgs.writeShellScriptBin "cargo-udeps" ''
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export PATH="${nightlyToolchain}/bin:$PATH"
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exec ${pkgs.cargo-udeps}/bin/cargo-udeps "$@"
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'';
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in
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{
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treefmt = {
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projectRootFile = "flake.nix";
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programs = {
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deadnix.enable = true;
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just.enable = true;
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nixfmt.enable = true;
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taplo.enable = true;
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rustfmt = {
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enable = true;
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package = nightlyRustfmt;
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};
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};
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};
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checks = {
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komorebi-workspace-fmt = build.craneLibFmt.cargoFmt { inherit (build) src; };
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komorebi-workspace-clippy = build.craneLib.cargoClippy (
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build.individualCrateArgs
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// {
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cargoClippyExtraArgs = "--workspace --all-targets -- -D warnings";
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}
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);
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komorebi-workspace-doc = build.craneLib.cargoDoc (
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build.individualCrateArgs
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// {
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cargoDocExtraArgs = "--workspace --no-deps";
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env.RUSTDOCFLAGS = "-D warnings";
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}
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);
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komorebi-workspace-toml-fmt = build.craneLib.taploFmt {
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src = lib.sources.sourceFilesBySuffices build.src [ ".toml" ];
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};
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komorebi-workspace-deny = build.craneLib.cargoDeny { inherit (build) src; };
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komorebi-workspace-nextest = build.craneLib.cargoNextest (
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build.individualCrateArgs // { doCheck = true; }
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);
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# The bridge is not Rust: tsc checks its types from its JSDoc comments, and node runs
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# its tests against a fake KWin. No package.json and no build step.
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komorebi-bridge-js =
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pkgs.runCommand "komorebi-bridge-js"
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{
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nativeBuildInputs = [
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pkgs.nodejs
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pkgs.typescript
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];
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src = lib.fileset.toSource {
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root = ./komorebi/src/kwin;
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fileset = lib.fileset.fileFilter (file: !file.hasExt "rs") ./komorebi/src/kwin;
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};
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}
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''
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cd $src
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tsc -p tsconfig.json
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node --test bridge.test.js
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touch $out
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'';
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vm-lib = vm.lib;
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# The NixOS module in real NixOS systems, evaluated and never built, so a Mac checks it
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# too. A VM suite, `vm-module`, runs it.
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nixos-module-eval = import ./nix/tests/nixos-module.nix {
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inherit pkgs;
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inherit (nixpkgs.lib) nixosSystem;
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module = self.nixosModules.default;
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komorebiFor = guestSystem: self.packages.${guestSystem}.komorebi-full;
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};
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}
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# The VM tests need QEMU with KVM, so only Linux checks them. A Mac runs the same tests
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# through legacyPackages.<system>.vm, see docs/dev/vm-tests.md.
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// lib.optionalAttrs isLinux (
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lib.mapAttrs' (name: test: lib.nameValuePair "vm-${name}" test) vm.suites
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);
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legacyPackages = {
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# every suite, as a test with a `driver`, on every system
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vm = vm.suites;
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# the suites of each tier, for the CI matrix
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vmTiers = vm.tiers;
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# the guests of every suite, to build on a Linux builder when the host is a Mac
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vmGuests = vm.guests;
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}
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// lib.optionalAttrs isLinux {
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# the same suites on a machine with no KVM, which is slow but works anywhere
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vmTcg =
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(import ./nix/tests/vm {
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hostPkgs = pkgs;
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inherit komorebiModule;
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scale = 8;
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}).suites;
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};
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packages = lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
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inherit (build) komorebi komorebic;
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komorebi-full = build.fullBuild;
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default = build.fullBuild;
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};
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apps = lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
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komorebi = {
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type = "app";
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program = "${build.komorebi}/bin/komorebi";
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meta.description = "The komorebi daemon";
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};
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komorebic = {
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type = "app";
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program = "${build.komorebic}/bin/komorebic";
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meta.description = "The command line interface of komorebi";
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};
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default = config.apps.komorebi;
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};
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devShells.default = pkgs.mkShell {
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name = "komorebi";
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RUST_BACKTRACE = "full";
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inputsFrom = [ build.fullBuild ];
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packages = [
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rustToolchainWithNightlyRustfmt
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cargo-udeps
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pkgs.cargo-deny
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pkgs.cargo-nextest
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pkgs.jq
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pkgs.just
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pkgs.ripgrep
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# the bridge's type check and tests (`just check-js`)
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pkgs.nodejs
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pkgs.typescript
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# the VM test library
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pkgs.ruff
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pkgs.ty
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(pkgs.python3.withPackages (ps: [ ps.pytest ]))
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];
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};
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pre-commit = {
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check.enable = true;
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settings.hooks.treefmt = {
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enable = true;
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package = config.treefmt.build.wrapper;
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pass_filenames = false;
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};
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};
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};
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flake = {
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overlays.default =
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final: _:
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let
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build = mkKomorebiPackages { pkgs = mkPkgs final.stdenv.hostPlatform.system; };
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in
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{
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inherit (build) komorebi komorebic;
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komorebi-full = build.fullBuild;
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};
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overlays.komorebi = self.overlays.default;
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# `services.komorebi`, with the overlay that provides its package, so that a NixOS
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# configuration needs this flake as an input and one module line (docs/installation.md)
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nixosModules.default = {
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imports = [ ./nix/nixos-module.nix ];
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nixpkgs.overlays = [ self.overlays.default ];
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};
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nixosModules.komorebi = self.nixosModules.default;
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};
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};
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}
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