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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 remote_branches(remote_name)
gitaly_migrate(:ref_find_all_remote_branches) do |is_enabled|
if is_enabled
gitaly_ref_client.remote_branches(remote_name)
else
rugged_remote_branches(remote_name)
end
end
end
private
def rugged_remote_branches(remote_name)
branches = []
rugged.references.each("refs/remotes/#{remote_name}/*").map do |ref|
name = ref.name.sub(%r{\Arefs/remotes/#{remote_name}/}, '')
begin
target_commit = Gitlab::Git::Commit.find(self, ref.target.oid)
branches << Gitlab::Git::Branch.new(self, name, ref.target, target_commit)
rescue Rugged::ReferenceError
# Omit invalid branch
end
end
branches
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
end
end
end
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