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