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module MergeRequests
class GetUrlsService < BaseService
attr_reader :project
def initialize(project)
@project = project
end
def execute(changes)
return [] unless project.printing_merge_request_link_enabled
branches = get_branches(changes)
merge_requests_map = opened_merge_requests_from_source_branches(branches)
branches.map do |branch|
existing_merge_request = merge_requests_map[branch]
if existing_merge_request
url_for_existing_merge_request(existing_merge_request)
else
url_for_new_merge_request(branch)
end
end
end
private
def opened_merge_requests_from_source_branches(branches)
merge_requests = MergeRequest.from_project(project).opened.from_source_branches(branches)
merge_requests.index_by(&:source_branch)
end
def get_branches(changes)
return [] if project.empty_repo?
return [] unless project.merge_requests_enabled?
changes_list = Gitlab::ChangesList.new(changes)
changes_list.map do |change|
next unless Gitlab::Git.branch_ref?(change[:ref])
# Deleted branch
next if Gitlab::Git.blank_ref?(change[:newrev])
# Default branch
branch_name = Gitlab::Git.branch_name(change[:ref])
next if branch_name == project.default_branch
branch_name
end.compact
end
def url_for_new_merge_request(branch_name)
merge_request_params = { source_branch: branch_name }
url = Gitlab::Routing.url_helpers.new_namespace_project_merge_request_url(project.namespace, project, merge_request: merge_request_params)
{ branch_name: branch_name, url: url, new_merge_request: true }
end
def url_for_existing_merge_request(merge_request)
target_project = merge_request.target_project
url = Gitlab::Routing.url_helpers.namespace_project_merge_request_url(target_project.namespace, target_project, merge_request)
{ branch_name: merge_request.source_branch, url: url, new_merge_request: false }
end
end
end
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