gitlab-org--gitlab-foss/app/models/merge_request.rb
2013-02-26 10:38:40 +02:00

223 lines
5.5 KiB
Ruby

# == Schema Information
#
# Table name: merge_requests
#
# id :integer not null, primary key
# target_branch :string(255) not null
# source_branch :string(255) not null
# project_id :integer not null
# author_id :integer
# assignee_id :integer
# title :string(255)
# state :string(255) not null
# created_at :datetime not null
# updated_at :datetime not null
# st_commits :text(2147483647)
# st_diffs :text(2147483647)
# merge_status :integer default(1), not null
#
# milestone_id :integer
require Rails.root.join("app/models/commit")
require Rails.root.join("lib/static_model")
class MergeRequest < ActiveRecord::Base
include Issuable
BROKEN_DIFF = "--broken-diff"
attr_accessible :title, :assignee_id, :target_branch, :source_branch, :milestone_id,
:author_id_of_changes, :state_event
attr_accessor :should_remove_source_branch
state_machine :state, initial: :opened do
event :close do
transition [:reopened, :opened] => :closed
end
event :merge do
transition [:reopened, :opened] => :merged
end
event :reopen do
transition closed: :reopened
end
state :opened
state :reopened
state :closed
state :merged
end
state_machine :merge_status, initial: :unchecked do
event :mark_as_unchecked do
transition [:can_be_merged, :cannot_be_merged] => :unchecked
end
event :mark_as_mergeable do
transition unchecked: :can_be_merged
end
event :mark_as_unmergeable do
transition unchecked: :cannot_be_merged
end
state :unchecked
state :can_be_merged
state :cannot_be_merged
end
serialize :st_commits
serialize :st_diffs
validates :source_branch, presence: true
validates :target_branch, presence: true
validate :validate_branches
scope :merged, -> { with_state(:merged) }
scope :by_branch, ->(branch_name) { where("source_branch LIKE :branch OR target_branch LIKE :branch", branch: branch_name) }
scope :cared, ->(user) { where('assignee_id = :user OR author_id = :user', user: user.id) }
scope :by_milestone, ->(milestone) { where(milestone_id: milestone) }
# Closed scope for merge request should return
# both merged and closed mr's
scope :closed, -> { with_states(:closed, :merged) }
def validate_branches
if target_branch == source_branch
errors.add :base, "You can not use same branch for source and target branches"
end
end
def reload_code
self.reloaded_commits
self.reloaded_diffs
end
def check_if_can_be_merged
if Gitlab::Satellite::MergeAction.new(self.author, self).can_be_merged?
mark_as_mergeable
else
mark_as_unmergeable
end
end
def diffs
st_diffs || []
end
def reloaded_diffs
if opened? && unmerged_diffs.any?
self.st_diffs = unmerged_diffs
self.save
end
rescue Grit::Git::GitTimeout
self.st_diffs = [BROKEN_DIFF]
self.save
end
def broken_diffs?
diffs == [BROKEN_DIFF]
end
def valid_diffs?
!broken_diffs?
end
def unmerged_diffs
# Only show what is new in the source branch compared to the target branch, not the other way around.
# The linex below with merge_base is equivalent to diff with three dots (git diff branch1...branch2)
# From the git documentation: "git diff A...B" is equivalent to "git diff $(git-merge-base A B) B"
common_commit = project.repo.git.native(:merge_base, {}, [target_branch, source_branch]).strip
diffs = project.repo.diff(common_commit, source_branch)
end
def last_commit
commits.first
end
def merge_event
self.project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::MERGED).last
end
def closed_event
self.project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::CLOSED).last
end
def commits
st_commits || []
end
def probably_merged?
unmerged_commits.empty? &&
commits.any? && opened?
end
def reloaded_commits
if opened? && unmerged_commits.any?
self.st_commits = unmerged_commits
save
end
commits
end
def unmerged_commits
self.project.repo.
commits_between(self.target_branch, self.source_branch).
map {|c| Commit.new(c)}.
sort_by(&:created_at).
reverse
end
def merge!(user_id)
self.merge
Event.create(
project: self.project,
action: Event::MERGED,
target_id: self.id,
target_type: "MergeRequest",
author_id: user_id
)
end
def automerge!(current_user)
if Gitlab::Satellite::MergeAction.new(current_user, self).merge! && self.unmerged_commits.empty?
self.merge!(current_user.id)
true
end
rescue
mark_as_unmergeable
false
end
def mr_and_commit_notes
commit_ids = commits.map(&:id)
Note.where("(noteable_type = 'MergeRequest' AND noteable_id = :mr_id) OR (noteable_type = 'Commit' AND commit_id IN (:commit_ids))", mr_id: id, commit_ids: commit_ids)
end
# Returns the raw diff for this merge request
#
# see "git diff"
def to_diff
project.repo.git.native(:diff, {timeout: 30, raise: true}, "#{target_branch}...#{source_branch}")
end
# Returns the commit as a series of email patches.
#
# see "git format-patch"
def to_patch
project.repo.git.format_patch({timeout: 30, raise: true, stdout: true}, "#{target_branch}..#{source_branch}")
end
def last_commit_short_sha
@last_commit_short_sha ||= last_commit.sha[0..10]
end
end