debian-mirror-gitlab/app/services/git_push_service.rb

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# frozen_string_literal: true
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class GitPushService < BaseService
attr_accessor :push_data, :push_commits
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include Gitlab::Access
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include Gitlab::Utils::StrongMemoize
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# The N most recent commits to process in a single push payload.
PROCESS_COMMIT_LIMIT = 100
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# This method will be called after each git update
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# and only if the provided user and project are present in GitLab.
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#
# All callbacks for post receive action should be placed here.
#
# Next, this method:
# 1. Creates the push event
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# 2. Updates merge requests
# 3. Recognizes cross-references from commit messages
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# 4. Executes the project's webhooks
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# 5. Executes the project's services
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# 6. Checks if the project's main language has changed
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#
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def execute
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project.repository.after_create if project.empty_repo?
project.repository.after_push_commit(branch_name)
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if push_remove_branch?
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project.repository.after_remove_branch
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@push_commits = []
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elsif push_to_new_branch?
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project.repository.after_create_branch
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# Re-find the pushed commits.
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if default_branch?
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# Initial push to the default branch. Take the full history of that branch as "newly pushed".
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process_default_branch
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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.
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@push_commits = project.repository.commits_between(project.default_branch, params[:newrev])
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# don't process commits for the initial push to the default branch
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process_commit_messages
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end
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elsif push_to_existing_branch?
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# Collect data for this git push
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@push_commits = project.repository.commits_between(params[:oldrev], params[:newrev])
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process_commit_messages
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# Update the bare repositories info/attributes file using the contents of the default branches
# .gitattributes file
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update_gitattributes if default_branch?
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end
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execute_related_hooks
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perform_housekeeping
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update_remote_mirrors
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update_caches
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update_signatures
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end
def update_gitattributes
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project.repository.copy_gitattributes(params[:ref])
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end
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def update_caches
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if default_branch?
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if push_to_new_branch?
# If this is the initial push into the default branch, the file type caches
# will already be reset as a result of `Project#change_head`.
types = []
else
paths = Set.new
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last_pushed_commits.each do |commit|
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commit.raw_deltas.each do |diff|
paths << diff.new_path
end
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end
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types = Gitlab::FileDetector.types_in_paths(paths.to_a)
end
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DetectRepositoryLanguagesWorker.perform_async(@project.id, current_user.id)
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else
types = []
end
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ProjectCacheWorker.perform_async(project.id, types, [:commit_count, :repository_size])
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end
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def update_signatures
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commit_shas = last_pushed_commits.map(&:sha)
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return if commit_shas.empty?
shas_with_cached_signatures = GpgSignature.where(commit_sha: commit_shas).pluck(:commit_sha)
commit_shas -= shas_with_cached_signatures
return if commit_shas.empty?
commit_shas = Gitlab::Git::Commit.shas_with_signatures(project.repository, commit_shas)
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CreateGpgSignatureWorker.perform_async(commit_shas, project.id)
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end
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# Schedules processing of commit messages.
def process_commit_messages
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default = default_branch?
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last_pushed_commits.each do |commit|
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if commit.matches_cross_reference_regex?
ProcessCommitWorker
.perform_async(project.id, current_user.id, commit.to_hash, default)
end
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end
end
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protected
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def update_remote_mirrors
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return unless project.has_remote_mirror?
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project.mark_stuck_remote_mirrors_as_failed!
project.update_remote_mirrors
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end
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def execute_related_hooks
# Update merge requests that may be affected by this push. A new branch
# could cause the last commit of a merge request to change.
#
UpdateMergeRequestsWorker
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.perform_async(project.id, current_user.id, params[:oldrev], params[:newrev], params[:ref])
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EventCreateService.new.push(project, current_user, build_push_data)
Ci::CreatePipelineService.new(project, current_user, build_push_data).execute(:push)
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project.execute_hooks(build_push_data.dup, :push_hooks)
project.execute_services(build_push_data.dup, :push_hooks)
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if push_remove_branch?
AfterBranchDeleteService
.new(project, current_user)
.execute(branch_name)
end
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end
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def perform_housekeeping
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housekeeping = Projects::HousekeepingService.new(project)
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housekeeping.increment!
housekeeping.execute if housekeeping.needed?
rescue Projects::HousekeepingService::LeaseTaken
end
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def process_default_branch
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offset = [push_commits_count_for_ref - PROCESS_COMMIT_LIMIT, 0].max
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@push_commits = project.repository.commits(params[:newrev], offset: offset, limit: PROCESS_COMMIT_LIMIT)
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project.after_create_default_branch
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end
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def build_push_data
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@push_data ||= Gitlab::DataBuilder::Push.build(
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project,
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current_user,
params[:oldrev],
params[:newrev],
params[:ref],
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@push_commits,
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commits_count: commits_count)
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end
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def push_to_existing_branch?
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# Return if this is not a push to a branch (e.g. new commits)
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branch_ref? && !Gitlab::Git.blank_ref?(params[:oldrev])
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end
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def push_to_new_branch?
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strong_memoize(:push_to_new_branch) do
branch_ref? && Gitlab::Git.blank_ref?(params[:oldrev])
end
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end
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def push_remove_branch?
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strong_memoize(:push_remove_branch) do
branch_ref? && Gitlab::Git.blank_ref?(params[:newrev])
end
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end
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def default_branch?
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branch_ref? &&
(branch_name == project.default_branch || project.default_branch.nil?)
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end
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def commit_user(commit)
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commit.author || current_user
end
def branch_name
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strong_memoize(:branch_name) do
Gitlab::Git.ref_name(params[:ref])
end
end
def branch_ref?
strong_memoize(:branch_ref) do
Gitlab::Git.branch_ref?(params[:ref])
end
end
def commits_count
return push_commits_count_for_ref if default_branch? && push_to_new_branch?
Array(@push_commits).size
end
def push_commits_count_for_ref
strong_memoize(:push_commits_count_for_ref) do
project.repository.commit_count_for_ref(params[:ref])
end
end
def last_pushed_commits
@last_pushed_commits ||= @push_commits.last(PROCESS_COMMIT_LIMIT)
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end
end