90 lines
2.9 KiB
Ruby
90 lines
2.9 KiB
Ruby
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module Gitlab
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module Git
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class RemoteMirror
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def initialize(repository, ref_name)
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@repository = repository
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@ref_name = ref_name
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end
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def update(only_branches_matching: [])
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@repository.gitaly_migrate(:remote_update_remote_mirror) do |is_enabled|
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if is_enabled
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gitaly_update(only_branches_matching)
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else
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rugged_update(only_branches_matching)
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end
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end
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end
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private
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def gitaly_update(only_branches_matching)
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@repository.gitaly_remote_client.update_remote_mirror(@ref_name, only_branches_matching)
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end
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def rugged_update(only_branches_matching)
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local_branches = refs_obj(@repository.local_branches, only_refs_matching: only_branches_matching)
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remote_branches = refs_obj(@repository.remote_branches(@ref_name), only_refs_matching: only_branches_matching)
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updated_branches = changed_refs(local_branches, remote_branches)
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push_branches(updated_branches.keys) if updated_branches.present?
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delete_refs(local_branches, remote_branches)
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local_tags = refs_obj(@repository.tags)
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remote_tags = refs_obj(@repository.remote_tags(@ref_name))
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updated_tags = changed_refs(local_tags, remote_tags)
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@repository.push_remote_branches(@ref_name, updated_tags.keys) if updated_tags.present?
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delete_refs(local_tags, remote_tags)
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end
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def refs_obj(refs, only_refs_matching: [])
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refs.each_with_object({}) do |ref, refs|
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next if only_refs_matching.present? && !only_refs_matching.include?(ref.name)
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refs[ref.name] = ref
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end
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end
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def changed_refs(local_refs, remote_refs)
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local_refs.select do |ref_name, ref|
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remote_ref = remote_refs[ref_name]
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remote_ref.nil? || ref.dereferenced_target != remote_ref.dereferenced_target
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end
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end
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def push_branches(branches)
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default_branch, branches = branches.partition do |branch|
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@repository.root_ref == branch
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end
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# Push the default branch first so it works fine when remote mirror is empty.
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branches.unshift(*default_branch)
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@repository.push_remote_branches(@ref_name, branches)
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end
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def delete_refs(local_refs, remote_refs)
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refs = refs_to_delete(local_refs, remote_refs)
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@repository.delete_remote_branches(@ref_name, refs.keys) if refs.present?
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end
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def refs_to_delete(local_refs, remote_refs)
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default_branch_id = @repository.commit.id
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remote_refs.select do |remote_ref_name, remote_ref|
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next false if local_refs[remote_ref_name] # skip if branch or tag exist in local repo
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remote_ref_id = remote_ref.dereferenced_target.try(:id)
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remote_ref_id && @repository.rugged_is_ancestor?(remote_ref_id, default_branch_id)
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end
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end
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end
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end
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end
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