129 lines
3.9 KiB
Nix
129 lines
3.9 KiB
Nix
{ stdenv, lib, crystal, shards, git, pkg-config, which, linkFarm, fetchFromGitHub, installShellFiles }:
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{
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# Some projects do not include a lock file, so you can pass one
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lockFile ? null
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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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# We support different builders. To make things more straight forward, make it
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# user selectable instead of trying to autodetect
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, format ? "make"
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, installManPages ? true
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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 = [ "--optionname" ]; }
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, crystalBinaries ? { }
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, ...
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}@args:
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assert (builtins.elem format [ "make" "crystal" "shards" ]);
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let
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mkDerivationArgs = builtins.removeAttrs args [
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"format"
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"installManPages"
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"lockFile"
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"shardsFile"
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"crystalBinaries"
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];
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crystalLib = linkFarm "crystal-lib" (lib.mapAttrsToList
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(name: value: {
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inherit name;
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path = fetchFromGitHub value;
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})
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(import shardsFile));
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defaultOptions = [ "--release" "--progress" "--verbose" "--no-debug" ];
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buildDirectly = shardsFile == null || crystalBinaries != { };
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in
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stdenv.mkDerivation (mkDerivationArgs // {
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configurePhase = args.configurePhase or lib.concatStringsSep "\n"
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(
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[
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"runHook preConfigure"
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]
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++ lib.optional (lockFile != null) "cp ${lockFile} ./shard.lock"
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++ lib.optionals (shardsFile != null) [
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"test -e lib || mkdir lib"
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"for d in ${crystalLib}/*; do ln -s $d lib/; done"
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"cp shard.lock lib/.shards.info"
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]
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++ [ "runHook postConfigure" ]
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);
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CRFLAGS = lib.concatStringsSep " " defaultOptions;
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PREFIX = placeholder "out";
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buildInputs = args.buildInputs or [ ] ++ [ crystal ]
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++ lib.optional (format != "crystal") shards;
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nativeBuildInputs = args.nativeBuildInputs or [ ] ++ [ git installShellFiles pkg-config which ];
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buildPhase = args.buildPhase or (lib.concatStringsSep "\n" ([
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"runHook preBuild"
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] ++ lib.optional (format == "make")
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"make \${buildTargets:-build} $makeFlags"
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++ lib.optionals (format == "crystal") (lib.mapAttrsToList
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(bin: attrs: ''
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crystal ${lib.escapeShellArgs ([
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"build"
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"-o"
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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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'')
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crystalBinaries)
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++ lib.optional (format == "shards")
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"shards build --local --production ${lib.concatStringsSep " " defaultOptions}"
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++ [ "runHook postBuild" ]));
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installPhase = args.installPhase or (lib.concatStringsSep "\n" ([
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"runHook preInstall"
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] ++ lib.optional (format == "make")
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"make \${installTargets:-install} $installFlags"
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++ lib.optionals (format == "crystal") (map
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(bin: ''
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install -Dm555 ${lib.escapeShellArgs [ bin "${placeholder "out"}/bin/${bin}" ]}
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'')
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(lib.attrNames crystalBinaries))
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++ lib.optional (format == "shards")
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"install -Dm555 bin/* -t $out/bin"
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++ [
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''
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for f in README* *.md LICENSE; do
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test -f $f && install -Dm444 $f -t $out/share/doc/${args.pname}
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done
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''
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] ++ (lib.optional installManPages ''
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if [ -d man ]; then
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installManPage man/*.?
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fi
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'') ++ [
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"runHook postInstall"
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]));
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doCheck = args.doCheck or true;
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checkPhase = args.checkPhase or (lib.concatStringsSep "\n" ([
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"runHook preCheck"
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] ++ lib.optional (format == "make")
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"make \${checkTarget:-test} $checkFlags"
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++ lib.optional (format != "make")
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"crystal \${checkTarget:-spec} $checkFlags"
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++ [ "runHook postCheck" ]));
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doInstallCheck = args.doInstallCheck or true;
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installCheckPhase = args.installCheckPhase or ''
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for f in $out/bin/*; do
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$f --help > /dev/null
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done
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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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