local_gem.txt

rake local_gem:init
rake local_gem:update_projects

cd project_dir
begin
  abort if git_staging_dirty?
  bundle_update(gem_name)
  abort unless lockfile_modified?
  git_add(gem_name)
  git_commit(MSG_GEM_UPDATED, gem_name)
ensure
  cd old_dir
end


—
in local gem dir
before push commit
update gem lock file in each dependent project directory


updater = GemUpdater.new
updater.update_project(project_dir)