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# frozen_string_literal: true
# A collection of Commit instances for a specific project and Git reference.
class CommitCollection
include Enumerable
include Gitlab::Utils::StrongMemoize
attr_reader :project, :ref, :commits
# project - The project the commits belong to.
# commits - The Commit instances to store.
# ref - The name of the ref (e.g. "master").
def initialize(project, commits, ref = nil)
@project = project
@commits = commits
@ref = ref
end
def each(&block)
commits.each(&block)
end
def committers
emails = without_merge_commits.map(&:committer_email).uniq
User.by_any_email(emails)
end
def without_merge_commits
strong_memoize(:without_merge_commits) do
# `#enrich!` the collection to ensure all commits contain
# the necessary parent data
enrich!.commits.reject(&:merge_commit?)
end
end
def unenriched
commits.reject(&:gitaly_commit?)
end
def fully_enriched?
unenriched.empty?
end
# Batch load any commits that are not backed by full gitaly data, and
# replace them in the collection.
def enrich!
# A project is needed in order to fetch data from gitaly. Projects
# can be absent from commits in certain rare situations (like when
# viewing a MR of a deleted fork). In these cases, assume that the
# enriched data is not needed.
return self if project.blank? || fully_enriched?
# Batch load full Commits from the repository
# and map to a Hash of id => Commit
replacements = Hash[unenriched.map do |c|
[c.id, Commit.lazy(project, c.id)]
end.compact]
# Replace the commits, keeping the same order
@commits = @commits.map do |c|
replacements.fetch(c.id, c)
end
self
end
# Sets the pipeline status for every commit.
#
# Setting this status ahead of time removes the need for running a query for
# every commit we're displaying.
def with_pipeline_status
statuses = project.ci_pipelines.latest_status_per_commit(map(&:id), ref)
each do |commit|
commit.set_status_for_ref(ref, statuses[commit.id])
end
self
end
def respond_to_missing?(message, inc_private = false)
commits.respond_to?(message, inc_private)
end
# rubocop:disable GitlabSecurity/PublicSend
def method_missing(message, *args, &block)
commits.public_send(message, *args, &block)
end
end
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