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LGUG2Z
82366f7134
nix flake check --no-build failed in the nix-eval job on the runner with "path ...-Cargo.lock is not valid": crane's vendorCargoDeps runs pathExists on the lock at evaluation time, and `repoFile` is a store path that builtins.path makes during evaluation. Nix 2.35 with an empty store, as on a fresh runner, does not have it yet under --no-build; Lix, and a store that had seen the file, do. The parsed lock now comes from the flake source (cargoLockParsed in nix/lib.nix), and the Windows guest reads tools/test-partition.json the same way. The derivations are unchanged (same drv paths), so no cache key moves. Reproduced and fixed with upstream Nix and an empty store: nix shell nixpkgs#nixVersions.latest -c nix flake check --no-build --all-systems --store <empty dir>
80 lines
3.1 KiB
Nix
80 lines
3.1 KiB
Nix
# Helpers shared by the platform modules of the flake.
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{ inputs }:
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rec {
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# the repository, as the source of the flake
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repoRoot = ./..;
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# a file or directory of the repository as a store path of its own: `./tools/format-all` would name
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# a place in the store path of the whole flake source, which changes with every edit of the
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# repository and so would rebuild the derivation that reads it
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repoFile =
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rel:
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builtins.path {
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path = repoRoot + "/${rel}";
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name = builtins.baseNameOf rel;
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};
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# The lock, parsed at evaluation from the source of the flake itself. crane's `vendorCargoDeps` reads the lock it is
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# given while evaluating (`pathExists`, `readFile`), and `repoFile` above is a store path that `builtins.path` makes
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# during evaluation: Nix 2.35 on a runner whose store is empty does not have it there yet under
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# `nix flake check --no-build` ("path ... is not valid"), though Lix and a store that has seen it do. The
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# parsed lock is handed to `vendorCargoDeps` next to `cargoLock = repoFile "Cargo.lock"`, which is still what
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# the derivations name, so that an edit of any other file does not change them.
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cargoLockParsed = builtins.fromTOML (builtins.readFile (repoRoot + "/Cargo.lock"));
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# the version of the workspace: every package says `version.workspace = true`
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version =
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(builtins.fromTOML (builtins.readFile (repoRoot + "/Cargo.toml"))).workspace.package.version;
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# the systems that cross-build for Windows, build the Linux packages and build the macOS packages
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windowsSystems = [
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"x86_64-linux"
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"aarch64-linux"
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"aarch64-darwin"
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];
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linuxSystems = [
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"x86_64-linux"
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"aarch64-linux"
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];
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# Apple silicon also gets the checks of the KDE crates (they run against a fake desktop)
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linuxCheckSystems = linuxSystems ++ [ "aarch64-darwin" ];
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macosSystems = [
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"aarch64-darwin"
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"x86_64-darwin"
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];
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# The manifests (Cargo.toml, Cargo.lock, build scripts, .cargo/config.toml) of every member of the
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# workspace, of all three platforms, and nothing else: crane makes the dummy source of the dependency
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# derivations from it. A pure path (no derivation), so that crane reads it at evaluation without
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# building anything, which `nix flake check --all-systems` needs on a host that cannot build for the
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# other systems; and the same for every platform, so that the dependencies do not depend on the stubs.
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manifestSource =
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lib:
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lib.fileset.toSource {
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root = repoRoot;
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fileset = lib.fileset.fileFilter (
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file:
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builtins.elem file.name [
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"Cargo.toml"
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"Cargo.lock"
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"build.rs"
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"config.toml"
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]
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) repoRoot;
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};
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# nixpkgs with the rust overlay, for a system (x86_64-darwin: see the input nixpkgs-x86_64-darwin)
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mkPkgs = system: pkgsOf.${system};
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pkgsOf = builtins.listToAttrs (
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map (system: {
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name = system;
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value =
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import (if system == "x86_64-darwin" then inputs.nixpkgs-x86_64-darwin else inputs.nixpkgs)
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{
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inherit system;
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overlays = [ (import inputs.rust-overlay) ];
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};
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}) (windowsSystems ++ linuxSystems ++ macosSystems)
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);
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}
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