78 lines
3 KiB
Nix
78 lines
3 KiB
Nix
{ lib, callPackage, runCommand, makeWrapper, ruby }@defs:
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# Use for simple installation of Ruby tools shipped in a Gem.
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# Start with a Gemfile that includes `gem <toolgem>`
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# > nix-shell -p bundler bundix
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# (shell)> bundle lock
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# (shell)> bundix
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# Then use rubyTool in the default.nix:
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# rubyTool { pname = "gemifiedTool"; gemdir = ./.; exes = ["gemified-tool"]; }
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# The 'exes' parameter ensures that a copy of e.g. rake doesn't polute the system.
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{
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# use the name of the name in question; its version will be picked up from the gemset
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pname
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# Gemdir is the location of the Gemfile{,.lock} and gemset.nix; usually ./.
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# This is required unless gemfile, lockfile, and gemset are all provided
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, gemdir ? null
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# Exes is the list of executables provided by the gems in the Gemfile
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, exes ? []
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# Scripts are ruby programs depend on gems in the Gemfile (e.g. scripts/rails)
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, scripts ? []
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, ruby ? defs.ruby
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, gemfile ? null
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, lockfile ? null
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, gemset ? null
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, preferLocalBuild ? false
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, allowSubstitutes ? false
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, installManpages ? true
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, meta ? {}
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, nativeBuildInputs ? []
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, buildInputs ? []
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, postBuild ? ""
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, gemConfig ? null
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, passthru ? {}
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}@args:
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let
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basicEnv = (callPackage ../bundled-common {
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inherit ruby;
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}) args;
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cmdArgs = removeAttrs args [ "pname" "postBuild" "gemConfig" "passthru" "gemset" "gemdir" ] // {
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inherit preferLocalBuild allowSubstitutes; # pass the defaults
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nativeBuildInputs = nativeBuildInputs ++ lib.optionals (scripts != []) [ makeWrapper ];
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meta = {
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mainProgram = pname;
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inherit (ruby.meta) platforms;
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} // meta;
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passthru = basicEnv.passthru // {
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inherit basicEnv;
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inherit (basicEnv) env;
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} // passthru;
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};
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in
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runCommand basicEnv.name cmdArgs ''
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mkdir -p $out/bin
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${(lib.concatMapStrings (x: "ln -s '${basicEnv}/bin/${x}' $out/bin/${x};\n") exes)}
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${(lib.concatMapStrings (s: "makeWrapper $out/bin/$(basename ${s}) $srcdir/${s} " +
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"--set BUNDLE_GEMFILE ${basicEnv.confFiles}/Gemfile "+
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"--unset BUNDLE_PATH "+
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"--set BUNDLE_FROZEN 1 "+
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"--set GEM_HOME ${basicEnv}/${ruby.gemPath} "+
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"--set GEM_PATH ${basicEnv}/${ruby.gemPath} "+
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"--chdir \"$srcdir\";\n") scripts)}
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${lib.optionalString installManpages ''
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for section in {1..9}; do
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mandir="$out/share/man/man$section"
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# See: https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/ruby-modules/gem/default.nix#L184-L200
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# See: https://github.com/rubygems/rubygems/blob/7a7b234721c375874b7e22b1c5b14925b943f04e/bundler/lib/bundler.rb#L285-L291
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find -L ${basicEnv}/${ruby.gemPath}/${lib.optionalString (basicEnv.gemType == "git" || basicEnv.gemType == "url") "bundler/"}gems/${basicEnv.name} \( -wholename "*/man/*.$section" -o -wholename "*/man/man$section/*.$section" \) -print -execdir mkdir -p $mandir \; -execdir cp '{}' $mandir \;
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done
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''}
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''
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