gitlab-org--gitlab-foss/app/services/merge_requests/refresh_service.rb
Sean McGivern 6b834f2cbc Create a todo on failing MR build
When a build fails for a commit, create a todo for the author of the
merge request that commit is the HEAD of. If the commit isn't the HEAD
commit of any MR, don't do anything. If there already is a todo for that
user and MR, don't do anything.

Current limitations:
- This isn't configurable by project.
- The author of a merge request might not be the person who pushed the
  breaking commit.
2016-05-17 10:17:45 +01:00

175 lines
5.7 KiB
Ruby

module MergeRequests
class RefreshService < MergeRequests::BaseService
def execute(oldrev, newrev, ref)
return true unless Gitlab::Git.branch_ref?(ref)
@oldrev, @newrev = oldrev, newrev
@branch_name = Gitlab::Git.ref_name(ref)
find_new_commits
# Be sure to close outstanding MRs before reloading them to avoid generating an
# empty diff during a manual merge
close_merge_requests
reload_merge_requests
reset_merge_when_build_succeeds
mark_pending_todos_done
# Leave a system note if a branch was deleted/added
if branch_added? || branch_removed?
comment_mr_branch_presence_changed
end
comment_mr_with_commits
execute_mr_web_hooks
true
end
private
# Collect open merge requests that target same branch we push into
# and close if push to master include last commit from merge request
# We need this to close(as merged) merge requests that were merged into
# target branch manually
def close_merge_requests
commit_ids = @commits.map(&:id)
merge_requests = @project.merge_requests.opened.where(target_branch: @branch_name).to_a
merge_requests = merge_requests.select(&:last_commit)
merge_requests = merge_requests.select do |merge_request|
commit_ids.include?(merge_request.last_commit.id)
end
merge_requests.uniq.select(&:source_project).each do |merge_request|
MergeRequests::PostMergeService.
new(merge_request.target_project, @current_user).
execute(merge_request)
end
end
def force_push?
Gitlab::ForcePushCheck.force_push?(@project, @oldrev, @newrev)
end
# Refresh merge request diff if we push to source or target branch of merge request
# Note: we should update merge requests from forks too
def reload_merge_requests
merge_requests = @project.merge_requests.opened.by_branch(@branch_name).to_a
merge_requests += fork_merge_requests.by_branch(@branch_name).to_a
merge_requests = filter_merge_requests(merge_requests)
merge_requests.each do |merge_request|
if merge_request.source_branch == @branch_name || force_push?
merge_request.reload_code
merge_request.mark_as_unchecked
else
mr_commit_ids = merge_request.commits.map(&:id)
push_commit_ids = @commits.map(&:id)
matches = mr_commit_ids & push_commit_ids
if matches.any?
merge_request.reload_code
merge_request.mark_as_unchecked
else
merge_request.mark_as_unchecked
end
end
end
end
def reset_merge_when_build_succeeds
merge_requests_for_source_branch.each(&:reset_merge_when_build_succeeds)
end
def mark_pending_todos_done
merge_requests_for_source_branch.each do |merge_request|
todo_service.merge_request_push(merge_request, @current_user)
end
end
def find_new_commits
if branch_added?
@commits = []
merge_request = merge_requests_for_source_branch.first
return unless merge_request
last_commit = merge_request.last_commit
begin
# Since any number of commits could have been made to the restored branch,
# find the common root to see what has been added.
common_ref = @project.repository.merge_base(last_commit.id, @newrev)
# If the a commit no longer exists in this repo, gitlab_git throws
# a Rugged::OdbError. This is fixed in https://gitlab.com/gitlab-org/gitlab_git/merge_requests/52
@commits = @project.repository.commits_between(common_ref, @newrev) if common_ref
rescue
end
elsif branch_removed?
# No commits for a deleted branch.
@commits = []
else
@commits = @project.repository.commits_between(@oldrev, @newrev)
end
end
# Add comment about branches being deleted or added to merge requests
def comment_mr_branch_presence_changed
presence = branch_added? ? :add : :delete
merge_requests_for_source_branch.each do |merge_request|
SystemNoteService.change_branch_presence(
merge_request, merge_request.project, @current_user,
:source, @branch_name, presence)
end
end
# Add comment about pushing new commits to merge requests
def comment_mr_with_commits
return unless @commits.present?
merge_requests_for_source_branch.each do |merge_request|
mr_commit_ids = Set.new(merge_request.commits.map(&:id))
new_commits, existing_commits = @commits.partition do |commit|
mr_commit_ids.include?(commit.id)
end
SystemNoteService.add_commits(merge_request, merge_request.project,
@current_user, new_commits,
existing_commits, @oldrev)
end
end
# Call merge request webhook with update branches
def execute_mr_web_hooks
merge_requests_for_source_branch.each do |merge_request|
execute_hooks(merge_request, 'update')
end
end
def filter_merge_requests(merge_requests)
merge_requests.uniq.select(&:source_project)
end
def merge_requests_for_source_branch
@source_merge_requests ||= begin
merge_requests = @project.origin_merge_requests.opened.where(source_branch: @branch_name).to_a
merge_requests += fork_merge_requests.where(source_branch: @branch_name).to_a
filter_merge_requests(merge_requests)
end
end
def fork_merge_requests
@fork_merge_requests ||= @project.fork_merge_requests.opened
end
def branch_added?
Gitlab::Git.blank_ref?(@oldrev)
end
def branch_removed?
Gitlab::Git.blank_ref?(@newrev)
end
end
end