gitlab-org--gitlab-foss/app/models/commit.rb
2017-07-27 15:46:03 +02:00

397 lines
8.9 KiB
Ruby

class Commit
extend ActiveModel::Naming
extend Gitlab::Cache::RequestCache
include ActiveModel::Conversion
include Noteable
include Participable
include Mentionable
include Referable
include StaticModel
attr_mentionable :safe_message, pipeline: :single_line
participant :author
participant :committer
participant :notes_with_associations
attr_accessor :project, :author
DIFF_SAFE_LINES = Gitlab::Git::DiffCollection::DEFAULT_LIMITS[:max_lines]
# Commits above this size will not be rendered in HTML
DIFF_HARD_LIMIT_FILES = 1000
DIFF_HARD_LIMIT_LINES = 50000
# The SHA can be between 7 and 40 hex characters.
COMMIT_SHA_PATTERN = '\h{7,40}'.freeze
class << self
def decorate(commits, project)
commits.map do |commit|
if commit.is_a?(Commit)
commit
else
self.new(commit, project)
end
end
end
# Calculate number of lines to render for diffs
def diff_line_count(diffs)
diffs.reduce(0) { |sum, d| sum + Gitlab::Git::Util.count_lines(d.diff) }
end
# Truncate sha to 8 characters
def truncate_sha(sha)
sha[0..7]
end
def max_diff_options
{
max_files: DIFF_HARD_LIMIT_FILES,
max_lines: DIFF_HARD_LIMIT_LINES
}
end
def from_hash(hash, project)
new(Gitlab::Git::Commit.new(hash), project)
end
def valid_hash?(key)
!!(/\A#{COMMIT_SHA_PATTERN}\z/ =~ key)
end
end
attr_accessor :raw
def initialize(raw_commit, project)
raise "Nil as raw commit passed" unless raw_commit
@raw = raw_commit
@project = project
end
def id
@raw.id
end
def ==(other)
(self.class === other) && (raw == other.raw)
end
def self.reference_prefix
'@'
end
# Pattern used to extract commit references from text
#
# This pattern supports cross-project references.
def self.reference_pattern
@reference_pattern ||= %r{
(?:#{Project.reference_pattern}#{reference_prefix})?
(?<commit>\h{7,40})
}x
end
def self.link_reference_pattern
@link_reference_pattern ||= super("commit", /(?<commit>#{COMMIT_SHA_PATTERN})/)
end
def to_reference(from_project = nil, full: false)
commit_reference(from_project, id, full: full)
end
def reference_link_text(from_project = nil, full: false)
commit_reference(from_project, short_id, full: full)
end
def diff_line_count
@diff_line_count ||= Commit.diff_line_count(raw_diffs)
@diff_line_count
end
# Returns the commits title.
#
# Usually, the commit title is the first line of the commit message.
# In case this first line is longer than 100 characters, it is cut off
# after 80 characters + `...`
def title
return full_title if full_title.length < 100
full_title.truncate(81, separator: ' ', omission: '…')
end
# Returns the full commits title
def full_title
@full_title ||=
if safe_message.blank?
no_commit_message
else
safe_message.split("\n", 2).first
end
end
# Returns full commit message if title is truncated (greater than 99 characters)
# otherwise returns commit message without first line
def description
return safe_message if full_title.length >= 100
safe_message.split("\n", 2)[1].try(:chomp)
end
def description?
description.present?
end
def hook_attrs(with_changed_files: false)
data = {
id: id,
message: safe_message,
timestamp: committed_date.xmlschema,
url: Gitlab::UrlBuilder.build(self),
author: {
name: author_name,
email: author_email
}
}
if with_changed_files
data.merge!(repo_changes)
end
data
end
# Discover issues should be closed when this commit is pushed to a project's
# default branch.
def closes_issues(current_user = self.committer)
Gitlab::ClosingIssueExtractor.new(project, current_user).closed_by_message(safe_message)
end
def author
User.find_by_any_email(author_email.downcase)
end
request_cache(:author) { author_email.downcase }
def committer
@committer ||= User.find_by_any_email(committer_email.downcase)
end
def parents
@parents ||= parent_ids.map { |id| project.commit(id) }
end
def parent
@parent ||= project.commit(self.parent_id) if self.parent_id
end
def notes
project.notes.for_commit_id(self.id)
end
def discussion_notes
notes.non_diff_notes
end
def notes_with_associations
notes.includes(:author)
end
def method_missing(m, *args, &block)
@raw.send(m, *args, &block)
end
def respond_to_missing?(method, include_private = false)
@raw.respond_to?(method, include_private) || super
end
# Truncate sha to 8 characters
def short_id
@raw.short_id(7)
end
def diff_refs
Gitlab::Diff::DiffRefs.new(
base_sha: self.parent_id || Gitlab::Git::BLANK_SHA,
head_sha: self.sha
)
end
def pipelines
project.pipelines.where(sha: sha)
end
def last_pipeline
@last_pipeline ||= pipelines.last
end
def status(ref = nil)
@statuses ||= {}
return @statuses[ref] if @statuses.key?(ref)
@statuses[ref] = pipelines.latest_status(ref)
end
def signature
return @signature if defined?(@signature)
@signature = gpg_commit.signature
end
delegate :has_signature?, to: :gpg_commit
def revert_branch_name
"revert-#{short_id}"
end
def cherry_pick_branch_name
project.repository.next_branch("cherry-pick-#{short_id}", mild: true)
end
def revert_description(user)
if merged_merge_request?(user)
"This reverts merge request #{merged_merge_request(user).to_reference}"
else
"This reverts commit #{sha}"
end
end
def revert_message(user)
%Q{Revert "#{title.strip}"\n\n#{revert_description(user)}}
end
def reverts_commit?(commit, user)
description? && description.include?(commit.revert_description(user))
end
def merge_commit?
parents.size > 1
end
def merged_merge_request(current_user)
# Memoize with per-user access check
@merged_merge_request_hash ||= Hash.new do |hash, user|
hash[user] = merged_merge_request_no_cache(user)
end
@merged_merge_request_hash[current_user]
end
def has_been_reverted?(current_user, noteable = self)
ext = all_references(current_user)
noteable.notes_with_associations.system.each do |note|
note.all_references(current_user, extractor: ext)
end
ext.commits.any? { |commit_ref| commit_ref.reverts_commit?(self, current_user) }
end
def change_type_title(user)
merged_merge_request?(user) ? 'merge request' : 'commit'
end
# Get the URI type of the given path
#
# Used to build URLs to files in the repository in GFM.
#
# path - String path to check
#
# Examples:
#
# uri_type('doc/README.md') # => :blob
# uri_type('doc/logo.png') # => :raw
# uri_type('doc/api') # => :tree
# uri_type('not/found') # => :nil
#
# Returns a symbol
def uri_type(path)
entry = @raw.tree.path(path)
if entry[:type] == :blob
blob = ::Blob.decorate(Gitlab::Git::Blob.new(name: entry[:name]), @project)
blob.image? || blob.video? ? :raw : :blob
else
entry[:type]
end
rescue Rugged::TreeError
nil
end
def raw_diffs(*args)
if Gitlab::GitalyClient.feature_enabled?(:commit_raw_diffs)
Gitlab::GitalyClient::CommitService.new(project.repository).diff_from_parent(self, *args)
else
raw.diffs(*args)
end
end
def raw_deltas
@deltas ||= Gitlab::GitalyClient.migrate(:commit_deltas) do |is_enabled|
if is_enabled
Gitlab::GitalyClient::CommitService.new(project.repository).commit_deltas(self)
else
raw.deltas
end
end
end
def diffs(diff_options = nil)
Gitlab::Diff::FileCollection::Commit.new(self, diff_options: diff_options)
end
def persisted?
true
end
def touch
# no-op but needs to be defined since #persisted? is defined
end
WIP_REGEX = /\A\s*(((?i)(\[WIP\]|WIP:|WIP)\s|WIP$))|(fixup!|squash!)\s/.freeze
def work_in_progress?
!!(title =~ WIP_REGEX)
end
private
def commit_reference(from_project, referable_commit_id, full: false)
reference = project.to_reference(from_project, full: full)
if reference.present?
"#{reference}#{self.class.reference_prefix}#{referable_commit_id}"
else
referable_commit_id
end
end
def repo_changes
changes = { added: [], modified: [], removed: [] }
raw_deltas.each do |diff|
if diff.deleted_file
changes[:removed] << diff.old_path
elsif diff.renamed_file || diff.new_file
changes[:added] << diff.new_path
else
changes[:modified] << diff.new_path
end
end
changes
end
def merged_merge_request?(user)
!!merged_merge_request(user)
end
def merged_merge_request_no_cache(user)
MergeRequestsFinder.new(user, project_id: project.id).find_by(merge_commit_sha: id) if merge_commit?
end
def gpg_commit
@gpg_commit ||= Gitlab::Gpg::Commit.new(self)
end
end