54 lines
1.7 KiB
Nix
54 lines
1.7 KiB
Nix
{ stdenv, lib, crystal, linkFarm, fetchFromGitHub }:
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{ # Generate shards.nix with `nix-shell -p crystal2nix --run crystal2nix` in the projects root
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shardsFile ? null
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# Specify binaries to build in the form { foo.src = "src/foo.cr"; }
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# The default `crystal build` options can be overridden with { foo.options = [ "--no-debug" ]; }
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, crystalBinaries ? {}
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, ...
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}@args:
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let
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mkDerivationArgs = builtins.removeAttrs args [ "shardsFile" "crystalBinaries" ];
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crystalLib = linkFarm "crystal-lib" (lib.mapAttrsToList (name: value: {
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inherit name;
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path = fetchFromGitHub value;
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}) (import shardsFile));
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defaultOptions = [ "--release" "--progress" "--no-debug" "--verbose" ];
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in stdenv.mkDerivation (mkDerivationArgs // {
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configurePhase = args.configurePhase or ''
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runHook preConfigure
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${lib.optionalString (shardsFile != null) "ln -s ${crystalLib} lib"}
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runHook postConfigure
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'';
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buildInputs = args.buildInputs or [] ++ [ crystal ];
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buildPhase = args.buildPhase or ''
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runHook preBuild
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${lib.concatStringsSep "\n" (lib.mapAttrsToList (bin: attrs: ''
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crystal ${lib.escapeShellArgs ([
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"build"
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"-o" bin
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(attrs.src or (throw "No source file for crystal binary ${bin} provided"))
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] ++ attrs.options or defaultOptions)}
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'') crystalBinaries)}
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runHook postBuild
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'';
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installPhase = args.installPhase or ''
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runHook preInstall
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mkdir -p "$out/bin"
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${lib.concatMapStringsSep "\n" (bin: ''
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mv ${lib.escapeShellArgs [ bin "${placeholder "out"}/bin/${bin}" ]}
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'') (lib.attrNames crystalBinaries)}
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runHook postInstall
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'';
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meta = args.meta or {} // {
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platforms = args.meta.platforms or crystal.meta.platforms;
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};
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})
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