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https://github.com/nix-community/dream2nix.git
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77 lines
1.9 KiB
Nix
77 lines
1.9 KiB
Nix
# evaluate packages from `/**/modules/drvs` and export them via `flake.packages`
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{
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self,
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inputs,
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...
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}: {
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perSystem = {
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system,
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config,
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lib,
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pkgs,
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...
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}: let
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inherit
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(lib)
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mapAttrs'
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flip
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;
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inherit
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(builtins)
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mapAttrs
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readDir
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;
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# A module imported into every package setting up the eval cache
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setup = {config, ...}: {
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lock.lockFileRel = "/modules/drvs/${config.name}/lock-${system}.json";
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lock.repoRoot = self;
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eval-cache.cacheFileRel = "/modules/drvs/${config.name}/cache-${system}.json";
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eval-cache.repoRoot = self;
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eval-cache.enable = true;
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deps.npm = inputs.nixpkgs.legacyPackages.${system}.nodejs.pkgs.npm.override (old: rec {
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version = "8.19.4";
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src = builtins.fetchTarball {
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url = "https://registry.npmjs.org/npm/-/npm-${version}.tgz";
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sha256 = "0xmvjkxgfavlbm8cj3jx66mlmc20f9kqzigjqripgj71j6b2m9by";
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};
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});
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};
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# evaluates the package behind a given module
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makeDrv = module: let
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evaled = lib.evalModules {
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modules = [
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self.modules.drv-parts.core
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module
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setup
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];
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specialArgs.packageSets = {
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nixpkgs = inputs.nixpkgs.legacyPackages.${system};
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writers = config.writers;
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};
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specialArgs.dream2nix = self;
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};
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in
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evaled.config.public;
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examples = readDir (self + /examples/dream2nix-packages);
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exampleModules =
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flip mapAttrs examples
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(name: _: self + /examples/dream2nix-packages + "/${name}");
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allModules' = self.modules.drvs // exampleModules;
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allModules = flip mapAttrs' allModules' (name: module: {
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name = "example-package-${name}";
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value = module;
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});
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in {
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# map all modules in ../drvs to a package output in the flake.
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checks =
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lib.mapAttrs (_: drvModule: makeDrv drvModule)
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allModules;
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};
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}
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