- @repositories = {}
- Repository.find_each do |repo|
- if git_dir = repo.server_path
- @repositories[repo.name] = {git_dir: git_dir}
- end
- end
+ def self.cache_dir_base
+ Rails.root.join 'tmp', 'git'
+ end
+
+ def self.fetch_remote_repository gitdir, git_url
+ # Caller decides which protocols are worth using. This is just a
+ # safety check to ensure we never use urls like "--flag" or wander
+ # into git's hardlink features by using bare "/path/foo" instead
+ # of "file:///path/foo".
+ unless /^[a-z]+:\/\// =~ git_url
+ raise ArgumentError.new "invalid git url #{git_url}"
+ end
+ begin
+ must_git gitdir, "branch"
+ rescue GitError => e
+ raise unless /Not a git repository/ =~ e.to_s
+ # OK, this just means we need to create a blank cache repository
+ # before fetching.
+ FileUtils.mkdir_p gitdir
+ must_git gitdir, "init"
+ end
+ must_git(gitdir,
+ "fetch --no-progress --tags --prune --force --update-head-ok #{git_url.shellescape} 'refs/heads/*:refs/heads/*'")
+ end