119 lines
3.9 KiB
Ruby
119 lines
3.9 KiB
Ruby
module MergeRequests
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class BuildService < MergeRequests::BaseService
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def execute
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merge_request = MergeRequest.new(params)
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# Set MR attributes
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merge_request.can_be_created = true
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merge_request.compare_commits = []
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merge_request.source_project = project unless merge_request.source_project
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merge_request.target_project = nil unless can?(current_user, :read_project, merge_request.target_project)
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merge_request.target_project ||= (project.forked_from_project || project)
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merge_request.target_branch ||= merge_request.target_project.default_branch
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messages = validate_branches(merge_request)
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return build_failed(merge_request, messages) unless messages.empty?
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compare = CompareService.new.execute(
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merge_request.source_project,
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merge_request.source_branch,
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merge_request.target_project,
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merge_request.target_branch,
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)
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merge_request.compare_commits = compare.commits
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merge_request.compare = compare
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set_title_and_description(merge_request)
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end
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private
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def validate_branches(merge_request)
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messages = []
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if merge_request.target_branch.blank? || merge_request.source_branch.blank?
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messages <<
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if params[:source_branch] || params[:target_branch]
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"You must select source and target branch"
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end
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end
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if merge_request.source_project == merge_request.target_project &&
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merge_request.target_branch == merge_request.source_branch
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messages << 'You must select different branches'
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end
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# See if source and target branches exist
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if merge_request.source_branch.present? && !merge_request.source_project.commit(merge_request.source_branch)
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messages << "Source branch \"#{merge_request.source_branch}\" does not exist"
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end
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if merge_request.target_branch.present? && !merge_request.target_project.commit(merge_request.target_branch)
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messages << "Target branch \"#{merge_request.target_branch}\" does not exist"
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end
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messages
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end
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# When your branch name starts with an iid followed by a dash this pattern will be
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# interpreted as the user wants to close that issue on this project.
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#
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# For example:
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# - Issue 112 exists, title: Emoji don't show up in commit title
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# - Source branch is: 112-fix-mep-mep
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#
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# Will lead to:
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# - Appending `Closes #112` to the description
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# - Setting the title as 'Resolves "Emoji don't show up in commit title"' if there is
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# more than one commit in the MR
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#
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def set_title_and_description(merge_request)
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if match = merge_request.source_branch.match(/\A(\d+)-/)
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iid = match[1]
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end
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commits = merge_request.compare_commits
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if commits && commits.count == 1
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commit = commits.first
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merge_request.title = commit.title
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merge_request.description ||= commit.description.try(:strip)
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elsif iid && issue = merge_request.target_project.get_issue(iid, current_user)
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case issue
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when Issue
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merge_request.title = "Resolve \"#{issue.title}\""
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when ExternalIssue
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merge_request.title = "Resolve #{issue.title}"
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end
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else
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merge_request.title = merge_request.source_branch.titleize.humanize
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end
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if iid
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closes_issue = "Closes ##{iid}"
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if merge_request.description.present?
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merge_request.description += closes_issue.prepend("\n\n")
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else
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merge_request.description = closes_issue
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end
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end
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merge_request.title = merge_request.wip_title if commits.empty?
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merge_request
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end
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def build_failed(merge_request, messages)
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messages.compact.each do |message|
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merge_request.errors.add(:base, message)
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end
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merge_request.compare_commits = []
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merge_request.can_be_created = false
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merge_request
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end
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end
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end
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