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class GitPushService < BaseService
attr_accessor :push_data, :push_commits
include Gitlab::CurrentSettings
include Gitlab::Access
# This method will be called after each git update
# and only if the provided user and project are present in GitLab.
#
# All callbacks for post receive action should be placed here.
#
# Next, this method:
# 1. Creates the push event
# 2. Updates merge requests
# 3. Recognizes cross-references from commit messages
# 4. Executes the project's webhooks
# 5. Executes the project's services
# 6. Checks if the project's main language has changed
#
def execute
@project.repository.after_push_commit(branch_name, params[:newrev])
if push_remove_branch?
@project.repository.after_remove_branch
@push_commits = []
elsif push_to_new_branch?
@project.repository.after_create_branch
# Re-find the pushed commits.
if is_default_branch?
# Initial push to the default branch. Take the full history of that branch as "newly pushed".
process_default_branch
else
# Use the pushed commits that aren't reachable by the default branch
# as a heuristic. This may include more commits than are actually pushed, but
# that shouldn't matter because we check for existing cross-references later.
@push_commits = @project.repository.commits_between(@project.default_branch, params[:newrev])
# don't process commits for the initial push to the default branch
process_commit_messages
end
elsif push_to_existing_branch?
# Collect data for this git push
@push_commits = @project.repository.commits_between(params[:oldrev], params[:newrev])
process_commit_messages
end
# Update merge requests that may be affected by this push. A new branch
# could cause the last commit of a merge request to change.
update_merge_requests
# Checks if the main language has changed in the project and if so
# it updates it accordingly
update_main_language
perform_housekeeping
end
def update_main_language
# Performance can be bad so for now only check main_language once
# See https://gitlab.com/gitlab-org/gitlab-ce/issues/14937
return if @project.main_language.present?
return unless is_default_branch?
return unless push_to_new_branch? || push_to_existing_branch?
current_language = @project.repository.main_language
@project.update_attributes(main_language: current_language)
true
end
protected
def update_merge_requests
@project.update_merge_requests(params[:oldrev], params[:newrev], params[:ref], current_user)
EventCreateService.new.push(@project, current_user, build_push_data)
@project.execute_hooks(build_push_data.dup, :push_hooks)
@project.execute_services(build_push_data.dup, :push_hooks)
CreateCommitBuildsService.new.execute(@project, current_user, build_push_data)
ProjectCacheWorker.perform_async(@project.id)
end
def perform_housekeeping
housekeeping = Projects::HousekeepingService.new(@project)
housekeeping.increment!
housekeeping.execute if housekeeping.needed?
rescue Projects::HousekeepingService::LeaseTaken
end
def process_default_branch
@push_commits = project.repository.commits(params[:newrev])
# Ensure HEAD points to the default branch in case it is not master
project.change_head(branch_name)
# Set protection on the default branch if configured
if current_application_settings.default_branch_protection != PROTECTION_NONE
developers_can_push = current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_PUSH ? true : false
@project.protected_branches.create({ name: @project.default_branch, developers_can_push: developers_can_push })
end
end
# Extract any GFM references from the pushed commit messages. If the configured issue-closing regex is matched,
# close the referenced Issue. Create cross-reference Notes corresponding to any other referenced Mentionables.
def process_commit_messages
is_default_branch = is_default_branch?
authors = Hash.new do |hash, commit|
email = commit.author_email
next hash[email] if hash.has_key?(email)
hash[email] = commit_user(commit)
end
@push_commits.each do |commit|
# Keep track of the issues that will be actually closed because they are on a default branch.
# Hence, when creating cross-reference notes, the not-closed issues (on non-default branches)
# will also have cross-reference.
closed_issues = []
if is_default_branch
# Close issues if these commits were pushed to the project's default branch and the commit message matches the
# closing regex. Exclude any mentioned Issues from cross-referencing even if the commits are being pushed to
# a different branch.
closed_issues = commit.closes_issues(current_user)
closed_issues.each do |issue|
if can?(current_user, :update_issue, issue)
Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit: commit)
end
end
end
commit.create_cross_references!(authors[commit], closed_issues)
end
end
def build_push_data
@push_data ||= Gitlab::PushDataBuilder.
build(@project, current_user, params[:oldrev], params[:newrev], params[:ref], push_commits)
end
def push_to_existing_branch?
# Return if this is not a push to a branch (e.g. new commits)
Gitlab::Git.branch_ref?(params[:ref]) && !Gitlab::Git.blank_ref?(params[:oldrev])
end
def push_to_new_branch?
Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:oldrev])
end
def push_remove_branch?
Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:newrev])
end
def push_to_branch?
Gitlab::Git.branch_ref?(params[:ref])
end
def is_default_branch?
Gitlab::Git.branch_ref?(params[:ref]) &&
(Gitlab::Git.ref_name(params[:ref]) == project.default_branch || project.default_branch.nil?)
end
def commit_user(commit)
commit.author || current_user
end
def branch_name
@branch_name ||= Gitlab::Git.ref_name(params[:ref])
end
end
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