26053cae74
"default" isn't really a group, it's more the absence of one. With Bundler, this means that a gem should be installed unconditionally, regardless of which groups are specified. It doesn't really make sense to allow these gems to be omitted from a bundlerEnv.
94 lines
2.5 KiB
Nix
94 lines
2.5 KiB
Nix
{ lib, gemConfig, ... }:
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let
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inherit (lib) attrValues concatMap converge filterAttrs getAttrs
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intersectLists;
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in rec {
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bundlerFiles = {
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gemfile ? null
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, lockfile ? null
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, gemset ? null
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, gemdir ? null
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, ...
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}: {
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inherit gemdir;
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gemfile =
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if gemfile == null then assert gemdir != null; gemdir + "/Gemfile"
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else gemfile;
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lockfile =
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if lockfile == null then assert gemdir != null; gemdir + "/Gemfile.lock"
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else lockfile;
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gemset =
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if gemset == null then assert gemdir != null; gemdir + "/gemset.nix"
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else gemset;
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};
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filterGemset = { ruby, groups, ... }: gemset:
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let
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platformGems = filterAttrs (_: platformMatches ruby) gemset;
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directlyMatchingGems = filterAttrs (_: groupMatches groups) platformGems;
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expandDependencies = gems:
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let
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depNames = concatMap (gem: gem.dependencies or []) (attrValues gems);
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deps = getAttrs depNames platformGems;
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in
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gems // deps;
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in
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converge expandDependencies directlyMatchingGems;
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platformMatches = {rubyEngine, version, ...}: attrs: (
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!(attrs ? "platforms") ||
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builtins.length attrs.platforms == 0 ||
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builtins.any (platform:
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platform.engine == rubyEngine &&
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(!(platform ? "version") || platform.version == version.majMin)
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) attrs.platforms
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);
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groupMatches = groups: attrs:
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groups == null || !(attrs ? "groups") ||
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(intersectLists (groups ++ [ "default" ]) attrs.groups) != [];
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applyGemConfigs = attrs:
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(if gemConfig ? "${attrs.gemName}"
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then attrs // gemConfig."${attrs.gemName}" attrs
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else attrs);
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genStubsScript = { lib, ruby, confFiles, bundler, groups, binPaths, ... }: ''
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${ruby}/bin/ruby ${./gen-bin-stubs.rb} \
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"${ruby}/bin/ruby" \
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"${confFiles}/Gemfile" \
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"$out/${ruby.gemPath}" \
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"${bundler}/${ruby.gemPath}" \
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${lib.escapeShellArg binPaths} \
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${lib.escapeShellArg groups}
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'';
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pathDerivation = { gemName, version, path, ... }:
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let
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res = {
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type = "derivation";
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bundledByPath = true;
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name = gemName;
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version = version;
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outPath = path;
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outputs = [ "out" ];
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out = res;
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outputName = "out";
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};
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in res;
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composeGemAttrs = ruby: gems: name: attrs: ((removeAttrs attrs ["platforms"]) // {
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inherit ruby;
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inherit (attrs.source) type;
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source = removeAttrs attrs.source ["type"];
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gemName = name;
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gemPath = map (gemName: gems."${gemName}") (attrs.dependencies or []);
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});
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}
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