1 files changed, 67 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/ruby-modules/bundler-app/default.nix b/nixpkgs/pkgs/development/ruby-modules/bundler-app/default.nix
new file mode 100644
index 000000000000..f8843c615821
--- /dev/null
+++ b/nixpkgs/pkgs/development/ruby-modules/bundler-app/default.nix
@@ -0,0 +1,67 @@
+{ 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 <toolgem>`
+# > 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" "passthru" ] // {
+    inherit preferLocalBuild allowSubstitutes; # pass the defaults
+
+    buildInputs = buildInputs ++ lib.optional (scripts != []) makeWrapper;
+
+    passthru = basicEnv.passthru // {
+      inherit basicEnv;
+      inherit (basicEnv) env;
+    } // passthru;
+  };
+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
+    ''}
+  ''