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|
module MergeRequests
# MergeService class
#
# Do git merge and in case of success
# mark merge request as merged and execute all hooks and notifications
# Executed when you do merge via GitLab UI
#
class MergeService < MergeRequests::BaseService
MergeError = Class.new(StandardError)
attr_reader :merge_request, :source
def execute(merge_request)
@merge_request = merge_request
unless @merge_request.mergeable?
return log_merge_error('Merge request is not mergeable', save_message_on_model: true)
end
@source = find_merge_source
unless @source
return log_merge_error('No source for merge', save_message_on_model: true)
end
merge_request.in_locked_state do
if commit
after_merge
success
end
end
rescue MergeError => e
log_merge_error(e.message, save_message_on_model: true)
end
private
def commit
committer = repository.user_to_committer(current_user)
options = {
message: params[:commit_message] || merge_request.merge_commit_message,
author: committer,
committer: committer
}
commit_id = repository.merge(current_user, source, merge_request, options)
raise MergeError, 'Conflicts detected during merge' unless commit_id
merge_request.update(merge_commit_sha: commit_id)
rescue GitHooksService::PreReceiveError => e
raise MergeError, e.message
rescue StandardError => e
raise MergeError, "Something went wrong during merge: #{e.message}"
ensure
merge_request.update(in_progress_merge_commit_sha: nil)
end
def after_merge
MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
if params[:should_remove_source_branch].present? || @merge_request.force_remove_source_branch?
DeleteBranchService.new(@merge_request.source_project, branch_deletion_user)
.execute(merge_request.source_branch)
end
end
def branch_deletion_user
@merge_request.force_remove_source_branch? ? @merge_request.author : current_user
end
def log_merge_error(message, save_message_on_model: false)
Rails.logger.error("MergeService ERROR: #{merge_request_info} - #{message}")
@merge_request.update(merge_error: message) if save_message_on_model
end
def merge_request_info
merge_request.to_reference(full: true)
end
def find_merge_source
merge_request.diff_head_sha
end
end
end
|
