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module Gitlab
module Git
module RepositoryMirroring
REFMAPS = {
# With `:all_refs`, the repository is equivalent to the result of `git clone --mirror`
all_refs: '+refs/*:refs/*',
heads: '+refs/heads/*:refs/heads/*',
tags: '+refs/tags/*:refs/tags/*'
}.freeze
RemoteError = Class.new(StandardError)
def set_remote_as_mirror(remote_name, refmap: :all_refs)
set_remote_refmap(remote_name, refmap)
rugged.config["remote.#{remote_name}.mirror"] = true
rugged.config["remote.#{remote_name}.prune"] = true
end
def set_remote_refmap(remote_name, refmap)
Array(refmap).each_with_index do |refspec, i|
refspec = REFMAPS[refspec] || refspec
# We need multiple `fetch` entries, but Rugged only allows replacing a config, not adding to it.
# To make sure we start from scratch, we set the first using rugged, and use `git` for any others
if i == 0
rugged.config["remote.#{remote_name}.fetch"] = refspec
else
run_git(%W[config --add remote.#{remote_name}.fetch #{refspec}])
end
end
end
def remote_tags(remote)
# Each line has this format: "dc872e9fa6963f8f03da6c8f6f264d0845d6b092\trefs/tags/v1.10.0\n"
# We want to convert it to: [{ 'v1.10.0' => 'dc872e9fa6963f8f03da6c8f6f264d0845d6b092' }, ...]
list_remote_tags(remote).map do |line|
target, path = line.strip.split("\t")
# When the remote repo does not have tags.
if target.nil? || path.nil?
Rails.logger.info "Empty or invalid list of tags for remote: #{remote}. Output: #{output}"
return []
end
name = path.split('/', 3).last
# We're only interested in tag references
# See: http://stackoverflow.com/questions/15472107/when-listing-git-ls-remote-why-theres-after-the-tag-name
next if name =~ /\^\{\}\Z/
target_commit = Gitlab::Git::Commit.find(self, target)
Gitlab::Git::Tag.new(self, name, target, target_commit)
end.compact
end
def remote_branches(remote_name)
branches = []
rugged.references.each("refs/remotes/#{remote_name}/*").map do |ref|
name = ref.name.sub(/\Arefs\/remotes\/#{remote_name}\//, '')
begin
target_commit = Gitlab::Git::Commit.find(self, ref.target)
branches << Gitlab::Git::Branch.new(self, name, ref.target, target_commit)
rescue Rugged::ReferenceError
# Omit invalid branch
end
end
branches
end
private
def list_remote_tags(remote)
tag_list, exit_code, error = nil
cmd = %W(#{Gitlab.config.git.bin_path} --git-dir=#{path} ls-remote --tags #{remote})
Open3.popen3(*cmd) do |stdin, stdout, stderr, wait_thr|
tag_list = stdout.read
error = stderr.read
exit_code = wait_thr.value.exitstatus
end
raise RemoteError, error unless exit_code.zero?
tag_list.split("\n")
end
end
end
end
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