Install git gem into gems dir in hab

Signed-off-by: nitin sanghi <[email protected]>

habitat/plan.sh

@@ -78,6 +78,7 @@ do_build() {
     build_line "Installing gem dependencies ..."
     bundle install --jobs=3 --retry=3
     build_line "Installing gems from git repos properly ..."
+    ruby ./post-bundle-install.rb
     build_line "Installing this project's gems ..."
     bundle exec rake install:local
     gem install chef-utils chef-config appbundler aruba

post-bundle-install.rb

@@ -0,0 +1,30 @@
+#!/usr/bin/env ruby
+
+gem_home = Gem.paths.home
+
+puts "fixing bundle installed gems in #{gem_home}"
+
+# Install gems from git repos.  This makes the assumption that there is a <gem_name>.gemspec and
+# you can simply gem build + gem install the resulting gem, so nothing fancy.  This does not use
+# rake install since we need --conservative --minimal-deps in order to not install duplicate gems.
+#
+#
+puts "gem path #{gem_home}"
+
+Dir["#{gem_home}/bundler/gems/*"].each do |gempath|
+  puts "#{gempath}"
+  matches = File.basename(gempath).match(/.*-[A-Fa-f0-9]{12}/)
+  next unless matches
+  gem_name = File.basename(Dir["#{gempath}/*.gemspec"].first, ".gemspec")
+  # FIXME: should strip any valid ruby platform off of the gem_name if it matches
+
+  next unless gem_name
+
+  puts "re-installing #{gem_name}..."
+
+  Dir.chdir(gempath) do
+    system("gem build #{gem_name}.gemspec") or raise "gem build failed"
+    system("gem install #{gem_name}*.gem --conservative --minimal-deps --no-document") or raise "gem install failed"
+  end
+
+end