mirror of
https://github.com/LGUG2Z/komorebi.git
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LGUG2Z
c59f5dddd0
latency measured a p95 of 128.9 ms against its 100 ms times scale on the WSL2 machine, under nested KVM with nothing else running, where x86-1 had passed it at scale 1. Every Linux host is no faster than a Mac to the suites that time the daemon, so scale is 1.5 on all of them: latency passes at it with a p95 of 132.4 ms against 150 ms. The run-to-run difference (p50 46.0 ms, then 70.0) is as large as the margin left, which PLATFORM.md says. PLATFORM.md records the wall times of the suites on this machine. All 33 were run there after the library was split: 32 passed at scale 1, and latency is the one that failed. The other 32 were not rerun at 1.5, which changes their derivations.
622 lines
25 KiB
Nix
622 lines
25 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, the configurations
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# the tests load, and the schemas
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|| (pkgs.lib.hasSuffix ".json" path)
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# the page of the docs that shows the example configuration, which a test compares
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# with the example file
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|| (pkgs.lib.hasSuffix "docs/example-configurations.md" path)
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# the example a test loads, to see that the docs show one that works
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|| (pkgs.lib.hasSuffix "docs/usage/wallpapers.md" path)
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# the sample key bindings that `komorebic quickstart` includes
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|| (pkgs.lib.hasSuffix "docs/skhdrc.sample" path)
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# the key binding files the komorebi-hotkeys tests read
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|| (pkgs.lib.hasInfix "/komorebi-hotkeys/tests/fixtures/" 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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# komorebic with the constant commit of the checks, whose output the schemas are
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# checked against: it is the same for every commit
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komorebicForChecks = craneLib.buildPackage (
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individualCrateArgs
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// {
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pname = "komorebic-for-checks";
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cargoExtraArgs = "--package komorebic --bin komorebic";
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}
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);
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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. A Linux host is no faster
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# than a Mac to the suites that time the daemon: on a 24-core WSL2 machine, under nested
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# KVM and with nothing else running, `latency` measured a p95 of 129 ms against its
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# 100 ms times `scale`, where x86-1 had passed it at 1
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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 = 1.5;
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};
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# the probe of a NixOS-WSL2 machine (docs/dev/wsl2-probe.md); the checks use a constant
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# revision, so that they are the same derivations for every commit
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wsl2Probe = import ./nix/dev/wsl2-probe.nix {
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inherit pkgs;
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rev = self.rev or self.dirtyRev or "unknown";
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};
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wsl2ProbeForChecks = import ./nix/dev/wsl2-probe.nix {
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inherit pkgs;
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rev = "nix-check";
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};
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# `run-kde` starts the demo guest of the host's architecture (docs/trying-it.md). The guest's
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# runner is named in the program, not depended on: the command works out what is missing
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# and builds it, with its progress shown, instead of `nix run` fetching 4 GB first.
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runKde =
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let
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arch = if system == "x86_64-linux" then "x86_64" else "aarch64";
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guest = self.nixosConfigurations."run-kde-${arch}";
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runner = builtins.unsafeDiscardStringContext "${guest.config.system.build.vm}";
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in
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pkgs.writeShellApplication {
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name = "run-kde";
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runtimeInputs = with pkgs; [
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coreutils
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e2fsprogs
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gawk
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git
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gnugrep
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gnused
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mesa-demos
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openssh
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qemu-utils
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virtiofsd
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];
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text = ''
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: "''${RUN_KDE_GUEST:=run-kde-${arch}}"
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: "''${RUN_KDE_RUNNER_BIN:=${runner}/bin/run-${guest.config.networking.hostName}-vm}"
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''
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+ builtins.readFile ./scripts/run-kde;
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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 schemas, the options made from one of them and the example are what the Rust types
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# say: `just jsonschema` and `just nixgen` write them
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schema-fresh =
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pkgs.runCommand "komorebi-schema-fresh"
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{
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nativeBuildInputs = [
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build.komorebicForChecks
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pkgs.diffutils
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];
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}
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''
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komorebic static-config-schema | diff -u ${./schema.json} - \
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|| { echo "schema.json is stale: run just jsonschema"; exit 1; }
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komorebic application-specific-configuration-schema | diff -u ${./schema.asc.json} - \
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|| { echo "schema.asc.json is stale: run just jsonschema"; exit 1; }
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expected=$(sha256sum ${./schema.json} | cut -d' ' -f1)
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head -n 1 ${./nix/komorebi-options.nix} | grep -qx "# schema-sha256: $expected" \
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|| { echo "nix/komorebi-options.nix is stale: run just nixgen"; exit 1; }
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touch $out
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'';
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# the options the module is typed with, evaluated against the example configuration
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nix-options-validation = import ./nix/tests/default.nix { inherit pkgs; };
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# every file of the key binding corpus through `komorebic hotkeys compile`, as the
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# module runs it
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keybindings-fixtures = import ./nix/tests/keybindings.nix {
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inherit pkgs;
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komorebic = build.fullBuild;
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};
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# The NixOS module in real NixOS systems, evaluated and never built, so a Mac checks it
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# too. A VM suite, `vm-module`, runs it.
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nixos-module-eval = import ./nix/tests/nixos-module.nix {
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inherit pkgs;
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inherit (nixpkgs.lib) nixosSystem;
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module = self.nixosModules.default;
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komorebiFor = guestSystem: self.packages.${guestSystem}.komorebi-full;
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borderEffectFor = guestSystem: self.packages.${guestSystem}.kde-rounded-corners-komorebi;
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animationEffectFor = guestSystem: self.packages.${guestSystem}.kwin-effect-geometry-change-komorebi;
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};
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# The Plasma guests to develop against, evaluated and never built, so that every system
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# sees an option that nixpkgs renamed or an assertion that fails. The QEMU guests are
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# systems in a VM (`vmVariant`), with a runner for the machine that runs QEMU; UTM's is
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# a system of its own. Each guest is for one kind of machine, which is also checked: the
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# architecture of the guest, the machine that runs its QEMU, and that a guest of a Linux
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# machine has KVM and one display device only.
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plasma-guests-eval =
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let
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guests = self.nixosConfigurations;
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machines =
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let
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mac = {
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guest = "aarch64-linux";
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host = "aarch64-darwin";
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};
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linux = system: {
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guest = system;
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host = system;
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};
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# the runner of the demo is given its display device, its ports and whether to
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# insist on KVM when it starts, by `run-kde`
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demo = machine: machine // { demo = true; };
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in
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{
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plasma-vm = mac;
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plasma-vm-session = mac;
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plasma-vm-x86_64 = linux "x86_64-linux";
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plasma-vm-session-x86_64 = linux "x86_64-linux";
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plasma-vm-aarch64 = linux "aarch64-linux";
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plasma-vm-session-aarch64 = linux "aarch64-linux";
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run-kde-x86_64 = demo (linux "x86_64-linux");
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run-kde-aarch64 = demo (linux "aarch64-linux");
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};
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isDisplay =
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option: lib.hasPrefix "-device virtio-vga" option || lib.hasPrefix "-device virtio-gpu" option;
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qemuGuest =
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name:
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let
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machine = machines.${name};
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demo = machine.demo or false;
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vm = guests.${name}.config.virtualisation.vmVariant.virtualisation;
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in
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assert lib.assertMsg (
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guests.${name}.pkgs.stdenv.hostPlatform.system == machine.guest
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) "${name} is not a ${machine.guest} guest";
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assert lib.assertMsg (
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vm.host.pkgs.stdenv.hostPlatform.system == machine.host
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) "${name} does not run on a ${machine.host} host";
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assert lib.assertMsg (
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vm.qemu.forceAccel != demo
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) "${name} would run without KVM or HVF, which is too slow to use";
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assert lib.assertMsg (
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builtins.length (builtins.filter isDisplay vm.qemu.options) == (if demo then 0 else 1)
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) "${name} does not have the display devices it should have";
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assert lib.assertMsg
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# an x86_64 machine has a VGA of its own, which would be a second display
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((machine.guest == "x86_64-linux" && !demo) == builtins.elem "-vga none" vm.qemu.options)
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"${name} has `-vga none` if and only if it is an x86_64 guest with a display device";
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assert lib.assertMsg (
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demo -> (vm.forwardPorts == [ ] && vm.sharedDirectories.run-kde.target == "/run/run-kde")
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) "${name} does not leave its ports and its shared directory to the runner's environment";
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{
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${name} = guests.${name}.config.virtualisation.vmVariant.system.build.toplevel;
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"${name}, its runner" = guests.${name}.config.system.build.vm;
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};
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builds = lib.foldl' (builds: name: builds // qemuGuest name) { } (lib.attrNames machines) // {
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plasma-utm = guests.plasma-utm.config.system.build.toplevel;
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};
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lines = lib.mapAttrsToList (
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name: drv: "${name}: ${builtins.unsafeDiscardStringContext drv.drvPath}"
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) builds;
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in
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pkgs.runCommand "plasma-guests-eval" { } ''
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${lib.concatMapStringsSep "\n" (line: "echo ${lib.escapeShellArg line}") lines}
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touch $out
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'';
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}
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# The probe builds (shellcheck runs over the script and over the guest's init as it
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# does) and its dry run works without a machine to probe, so that it cannot rot between
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# the times somebody runs it.
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// lib.optionalAttrs isLinux {
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wsl2-probe = wsl2ProbeForChecks.probe;
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wsl2-probe-dry-run =
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pkgs.runCommand "wsl2-probe-dry-run" { nativeBuildInputs = [ wsl2ProbeForChecks.probe ]; }
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''
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wsl2-probe --dry-run --no-prompt --report report.txt > out.txt
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cat out.txt
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for probe in P0 P1 P2 P3 P4 P5 P6; do
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grep -q "^$probe " out.txt || { echo "no verdict line for $probe"; exit 1; }
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done
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grep -q "PASTE THIS" out.txt
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grep -q "would run" out.txt
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# the report file has what the screen has
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grep -q "PASTE THIS" report.txt
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# a mistake in the options is refused
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if wsl2-probe --nonsense 2> err.txt; then exit 1; fi
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grep -q "unknown option" err.txt
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touch $out
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'';
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}
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# `run-kde` is shellchecked when it is built, and its output is what a test says it is
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// lib.optionalAttrs isLinux (
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{
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run-kde = config.packages.run-kde;
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}
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// import ./nix/tests/run-kde.nix {
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inherit pkgs;
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runKde = config.packages.run-kde;
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}
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)
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# The VM tests need QEMU with KVM, so only Linux checks them. A Mac runs the same tests
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# through legacyPackages.<system>.vm, see docs/dev/vm-tests.md.
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// lib.optionalAttrs isLinux (
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lib.mapAttrs' (name: test: lib.nameValuePair "vm-${name}" test) vm.suites
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)
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# the KWin effects komorebi drives, installed and inspected without a session
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// lib.optionalAttrs isLinux (
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import ./nix/tests/effects.nix {
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inherit pkgs;
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inherit (config) packages;
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}
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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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}
|
|
// lib.optionalAttrs isLinux {
|
|
# the same suites on a machine with no KVM, which is slow but works anywhere
|
|
vmTcg =
|
|
(import ./nix/tests/vm {
|
|
hostPkgs = pkgs;
|
|
inherit komorebiModule;
|
|
scale = 8;
|
|
}).suites;
|
|
};
|
|
|
|
packages = lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
|
|
inherit (build) komorebi komorebic;
|
|
komorebi-full = build.fullBuild;
|
|
default = build.fullBuild;
|
|
kde-rounded-corners-komorebi = pkgs.callPackage ./nix/kde-rounded-corners.nix { };
|
|
kwin-effect-geometry-change-komorebi = pkgs.callPackage ./nix/kwin-effect-geometry-change.nix { };
|
|
wsl2-probe = wsl2Probe.probe;
|
|
wsl2-probe-guest = wsl2Probe.guest;
|
|
run-kde = runKde;
|
|
};
|
|
|
|
apps = lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
|
|
komorebi = {
|
|
type = "app";
|
|
program = "${build.komorebi}/bin/komorebi";
|
|
meta.description = "The komorebi daemon";
|
|
};
|
|
komorebic = {
|
|
type = "app";
|
|
program = "${build.komorebic}/bin/komorebic";
|
|
meta.description = "The command line interface of komorebi";
|
|
};
|
|
wsl2-probe = {
|
|
type = "app";
|
|
program = lib.getExe wsl2Probe.probe;
|
|
meta.description = "Probes a NixOS-WSL2 machine for KVM, WSLg, a GPU and RDP";
|
|
};
|
|
run-kde = {
|
|
type = "app";
|
|
program = lib.getExe config.packages.run-kde;
|
|
meta.description = "Start the komorebi demo in a virtual machine";
|
|
};
|
|
default = config.apps.komorebi;
|
|
};
|
|
|
|
devShells.default = pkgs.mkShell {
|
|
name = "komorebi";
|
|
|
|
RUST_BACKTRACE = "full";
|
|
|
|
inputsFrom = [ build.fullBuild ];
|
|
|
|
packages = [
|
|
rustToolchainWithNightlyRustfmt
|
|
cargo-udeps
|
|
|
|
pkgs.cargo-deny
|
|
pkgs.cargo-nextest
|
|
pkgs.check-jsonschema
|
|
pkgs.jq
|
|
pkgs.just
|
|
pkgs.ripgrep
|
|
|
|
# the tests of the sleep and lock signals start private buses (`kwin::power`)
|
|
pkgs.dbus
|
|
|
|
# the bridge's type check and tests (`just check-js`)
|
|
pkgs.nodejs
|
|
pkgs.typescript
|
|
|
|
# the VM test library
|
|
pkgs.ruff
|
|
pkgs.ty
|
|
(pkgs.python3.withPackages (ps: [ ps.pytest ]))
|
|
];
|
|
};
|
|
|
|
pre-commit = {
|
|
check.enable = true;
|
|
settings.hooks.treefmt = {
|
|
enable = true;
|
|
package = config.treefmt.build.wrapper;
|
|
pass_filenames = false;
|
|
};
|
|
};
|
|
};
|
|
|
|
flake = {
|
|
overlays.default =
|
|
final: _:
|
|
let
|
|
build = mkKomorebiPackages { pkgs = mkPkgs final.stdenv.hostPlatform.system; };
|
|
in
|
|
{
|
|
inherit (build) komorebi komorebic;
|
|
komorebi-full = build.fullBuild;
|
|
# with the consumer's KWin, so that the plugin links the libkwin it is loaded into
|
|
kde-rounded-corners-komorebi = final.callPackage ./nix/kde-rounded-corners.nix { };
|
|
kwin-effect-geometry-change-komorebi = final.callPackage ./nix/kwin-effect-geometry-change.nix { };
|
|
};
|
|
overlays.komorebi = self.overlays.default;
|
|
|
|
# `services.komorebi`, with the overlay that provides its package, so that a NixOS
|
|
# configuration needs this flake as an input and one module line (docs/installation.md)
|
|
nixosModules.default = {
|
|
imports = [ ./nix/nixos-module.nix ];
|
|
nixpkgs.overlays = [ self.overlays.default ];
|
|
};
|
|
nixosModules.komorebi = self.nixosModules.default;
|
|
|
|
# Plasma guests to develop against (docs/dev/utm.md). For an Apple silicon Mac, QEMU runs
|
|
# the first two under HVF, and UTM boots the third from a disk image. For a Linux machine
|
|
# with KVM, QEMU runs the other four: the same two guests for an x86_64 host and for an
|
|
# aarch64 one, each of which runs the guest of its own architecture. The last two are the
|
|
# demo that `run-kde` starts.
|
|
nixosConfigurations =
|
|
let
|
|
# `guest` is the system of the guest, and `host` the pkgs of the machine that runs QEMU
|
|
mkPlasmaGuest =
|
|
{ guest, host }:
|
|
modules:
|
|
nixpkgs.lib.nixosSystem {
|
|
specialArgs.hostPkgs = host;
|
|
modules = [
|
|
self.nixosModules.default
|
|
{ nixpkgs.hostPlatform = guest; }
|
|
]
|
|
++ modules;
|
|
};
|
|
onMac = mkPlasmaGuest {
|
|
guest = "aarch64-linux";
|
|
host = nixpkgs.legacyPackages.aarch64-darwin;
|
|
};
|
|
onLinux =
|
|
system:
|
|
mkPlasmaGuest {
|
|
guest = system;
|
|
host = nixpkgs.legacyPackages.${system};
|
|
};
|
|
session = [
|
|
./nix/dev/plasma-vm.nix
|
|
{ komorebi.plasmaVm.session = true; }
|
|
];
|
|
# the session guest with the demo of `run-kde` (nix/dev/run-kde.nix) and no display
|
|
# device, which the command gives it when it starts the guest
|
|
demo = [
|
|
./nix/dev/plasma-vm.nix
|
|
{
|
|
komorebi.plasmaVm = {
|
|
session = true;
|
|
display = false;
|
|
};
|
|
}
|
|
./nix/dev/run-kde.nix
|
|
({ lib, ... }: { networking.hostName = lib.mkOverride 40 "komorebi-demo"; })
|
|
];
|
|
in
|
|
{
|
|
plasma-vm = onMac [ ./nix/dev/plasma-vm.nix ];
|
|
plasma-vm-session = onMac session;
|
|
plasma-utm = onMac [ ./nix/dev/plasma-utm.nix ];
|
|
|
|
plasma-vm-x86_64 = onLinux "x86_64-linux" [ ./nix/dev/plasma-vm.nix ];
|
|
plasma-vm-session-x86_64 = onLinux "x86_64-linux" session;
|
|
plasma-vm-aarch64 = onLinux "aarch64-linux" [ ./nix/dev/plasma-vm.nix ];
|
|
plasma-vm-session-aarch64 = onLinux "aarch64-linux" session;
|
|
|
|
run-kde-x86_64 = onLinux "x86_64-linux" demo;
|
|
run-kde-aarch64 = onLinux "aarch64-linux" demo;
|
|
};
|
|
};
|
|
};
|
|
}
|