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module Gitlab
module ImportExport
class MergeRequestParser
FORKED_PROJECT_ID = -1
def initialize(project, diff_head_sha, merge_request, relation_hash)
@project = project
@diff_head_sha = diff_head_sha
@merge_request = merge_request
@relation_hash = relation_hash
end
def parse!
if fork_merge_request? && @diff_head_sha
@merge_request.source_project_id = @relation_hash['project_id']
fetch_ref unless branch_exists?(@merge_request.source_branch)
create_target_branch unless branch_exists?(@merge_request.target_branch)
end
@merge_request
end
def create_target_branch
@project.repository.create_branch(@merge_request.target_branch, @merge_request.target_branch_sha)
end
def fetch_ref
@project.repository.fetch_ref(@project.repository, source_ref: @diff_head_sha, target_ref: @merge_request.source_branch)
end
def branch_exists?(branch_name)
@project.repository.raw.branch_exists?(branch_name)
end
def fork_merge_request?
@relation_hash['source_project_id'] == FORKED_PROJECT_ID
end
end
end
end
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