gitlab-org--gitlab-foss/app/services/push_event_payload_service.rb
Andrew Newdigate 3288e1a874 Adds the Rubocop ReturnNil cop
This style change enforces `return if ...` instead of
`return nil if ...` to save maintainers a few minor review points
2019-03-06 17:51:56 +02:00

122 lines
2.4 KiB
Ruby

# frozen_string_literal: true
# Service class for creating push event payloads as stored in the
# "push_event_payloads" table.
#
# Example:
#
# data = Gitlab::DataBuilder::Push.build(...)
# event = Event.create(...)
#
# PushEventPayloadService.new(event, data).execute
class PushEventPayloadService
# event - The event this push payload belongs to.
# push_data - A Hash produced by `Gitlab::DataBuilder::Push.build` to use for
# building the push payload.
def initialize(event, push_data)
@event = event
@push_data = push_data
end
# Creates and returns a new PushEventPayload row.
#
# This method will raise upon encountering validation errors.
#
# Returns an instance of PushEventPayload.
def execute
@event.build_push_event_payload(
commit_count: commit_count,
action: action,
ref_type: ref_type,
commit_from: commit_from_id,
commit_to: commit_to_id,
ref: trimmed_ref,
commit_title: commit_title,
event_id: @event.id
)
@event.push_event_payload.save!
@event.push_event_payload
end
# Returns the commit title to use.
#
# The commit title is limited to the first line and a maximum of 70
# characters.
def commit_title
commit = @push_data.fetch(:commits).last
return unless commit && commit[:message]
raw_msg = commit[:message]
# Find where the first line ends, without turning the entire message into an
# Array of lines (this is a waste of memory for large commit messages).
index = raw_msg.index("\n")
message = index ? raw_msg[0..index] : raw_msg
message.strip.truncate(70)
end
def commit_from_id
if create?
nil
else
revision_before
end
end
def commit_to_id
if remove?
nil
else
revision_after
end
end
def commit_count
@push_data.fetch(:total_commits_count)
end
def ref
@push_data.fetch(:ref)
end
def revision_before
@push_data.fetch(:before)
end
def revision_after
@push_data.fetch(:after)
end
def trimmed_ref
Gitlab::Git.ref_name(ref)
end
def create?
Gitlab::Git.blank_ref?(revision_before)
end
def remove?
Gitlab::Git.blank_ref?(revision_after)
end
def action
if create?
:created
elsif remove?
:removed
else
:pushed
end
end
def ref_type
if Gitlab::Git.tag_ref?(ref)
:tag
else
:branch
end
end
end