Restructuring files

2017-05-27 15:19:34 -07:00
parent 022be78eb2
commit 998d011e42
13 changed files with 56 additions and 41 deletions
@@ -0,0 +1,53 @@
+{ lib, gemConfig, ... }:
+rec {
+  filterGemset = {ruby, groups,...}@env: gemset: lib.filterAttrs (name: attrs: platformMatches ruby attrs && groupMatches groups attrs) gemset;
+
+  platformMatches = {rubyEngine, version, ...}@ruby: attrs: (
+  !(attrs ? "platforms") ||
+  builtins.length attrs.platforms == 0 ||
+    builtins.any (platform:
+      platform.engine == rubyEngine &&
+        (!(platform ? "version") || platform.version == version.majMin)
+    ) attrs.platforms
+  );
+
+  groupMatches = groups: attrs: (
+  !(attrs ? "groups") ||
+    builtins.any (gemGroup: builtins.any (group: group == gemGroup) groups) attrs.groups
+  );
+
+  applyGemConfigs = attrs:
+    (if gemConfig ? "${attrs.gemName}"
+    then attrs // gemConfig."${attrs.gemName}" attrs
+    else attrs);
+
+  genStubsScript = { lib, ruby, confFiles, bundler, groups, binPaths, ... }: ''
+      ${ruby}/bin/ruby ${./gen-bin-stubs.rb} \
+        "${ruby}/bin/ruby" \
+        "${confFiles}/Gemfile" \
+        "$out/${ruby.gemPath}" \
+        "${bundler}/${ruby.gemPath}" \
+        ${lib.escapeShellArg binPaths} \
+        ${lib.escapeShellArg groups}
+    '';
+
+  pathDerivation = { gemName, version, path, ...  }:
+    let
+      res = {
+          type = "derivation";
+          bundledByPath = true;
+          name = gemName;
+          version = version;
+          outPath = path;
+          outputs = [ "out" ];
+          out = res;
+          outputName = "out";
+        };
+    in res;
+
+  composeGemAttrs = ruby: gems: name: attrs: ((removeAttrs attrs ["source" "platforms"]) // attrs.source // {
+    inherit ruby;
+    gemName = name;
+    gemPath = map (gemName: gems."${gemName}") (attrs.dependencies or []);
+  });
+}