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|
# == Schema Information
#
# Table name: merge_requests
#
# id :integer not null, primary key
# target_branch :string(255) not null
# source_branch :string(255) not null
# source_project_id :integer not null
# author_id :integer
# assignee_id :integer
# title :string(255)
# created_at :datetime
# updated_at :datetime
# milestone_id :integer
# state :string(255)
# merge_status :string(255)
# target_project_id :integer not null
# iid :integer
# description :text
#
require Rails.root.join("app/models/commit")
require Rails.root.join("lib/static_model")
class MergeRequest < ActiveRecord::Base
include Issuable
include InternalId
belongs_to :target_project, foreign_key: :target_project_id, class_name: "Project"
belongs_to :source_project, foreign_key: :source_project_id, class_name: "Project"
has_one :merge_request_diff, dependent: :destroy
after_create :create_merge_request_diff
after_update :update_merge_request_diff
delegate :commits, :diffs, :last_commit, :last_commit_short_sha, to: :merge_request_diff, prefix: nil
attr_accessible :title, :assignee_id, :source_project_id, :source_branch, :target_project_id, :target_branch, :milestone_id, :state_event, :description
attr_accessor :should_remove_source_branch
# When this attribute is true some MR validation is ignored
# It allows us to close or modify broken merge requests
attr_accessor :allow_broken
state_machine :state, initial: :opened do
event :close do
transition [:reopened, :opened] => :closed
end
event :merge do
transition [:reopened, :opened, :locked] => :merged
end
event :reopen do
transition closed: :reopened
end
event :lock do
transition [:reopened, :opened] => :locked
end
event :unlock do
transition locked: :reopened
end
state :opened
state :reopened
state :closed
state :merged
state :locked
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
validates :source_project, presence: true, unless: :allow_broken
validates :source_branch, presence: true
validates :target_project, presence: true
validates :target_branch, presence: true
validate :validate_branches
validate :validate_fork
scope :of_group, ->(group) { where("source_project_id in (:group_project_ids) OR target_project_id in (:group_project_ids)", group_project_ids: group.project_ids) }
scope :of_user_team, ->(team) { where("(source_project_id in (:team_project_ids) OR target_project_id in (:team_project_ids) AND assignee_id in (:team_member_ids))", team_project_ids: team.project_ids, team_member_ids: team.member_ids) }
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) }
scope :in_projects, ->(project_ids) { where("source_project_id in (:project_ids) OR target_project_id in (:project_ids)", project_ids: project_ids) }
scope :of_projects, ->(ids) { where(target_project_id: ids) }
# Closed scope for merge request should return
# both merged and closed mr's
scope :closed, -> { with_states(:closed, :merged) }
def validate_branches
if target_project == source_project && target_branch == source_branch
errors.add :branch_conflict, "You can not use same project/branch for source and target"
end
if opened? || reopened?
similar_mrs = self.target_project.merge_requests.where(source_branch: source_branch, target_branch: target_branch, source_project_id: source_project.id).opened
similar_mrs = similar_mrs.where('id not in (?)', self.id) if self.id
if similar_mrs.any?
errors.add :base, "Cannot Create: This merge request already exists: #{similar_mrs.pluck(:title)}"
end
end
end
def validate_fork
return true unless target_project && source_project
if target_project == source_project
true
else
# If source and target projects are different
# we should check if source project is actually a fork of target project
if source_project.forked_from?(target_project)
true
else
errors.add :base, "Source project is not a fork of target project"
end
end
end
def update_merge_request_diff
if source_branch_changed? || target_branch_changed?
reload_code
mark_as_unchecked
end
end
def reload_code
if merge_request_diff && open?
merge_request_diff.reload_content
end
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 merge_event
self.target_project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::MERGED).last
end
def closed_event
self.target_project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::CLOSED).last
end
def automerge!(current_user, commit_message = nil)
MergeRequests::AutoMergeService.new.execute(self, current_user, commit_message)
end
def open?
opened? || reopened?
end
def mr_and_commit_notes
# Fetch comments only from last 100 commits
commits_for_notes_limit = 100
commit_ids = commits.last(commits_for_notes_limit).map(&:id)
project.notes.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(current_user)
Gitlab::Satellite::MergeAction.new(current_user, self).diff_in_satellite
end
# Returns the commit as a series of email patches.
#
# see "git format-patch"
def to_patch(current_user)
Gitlab::Satellite::MergeAction.new(current_user, self).format_patch
end
def for_fork?
target_project != source_project
end
def disallow_source_branch_removal?
source_project.root_ref?(source_branch) || source_project.protected_branches.include?(source_branch)
end
def project
target_project
end
# Return the set of issues that will be closed if this merge request is accepted.
def closes_issues
if target_branch == project.default_branch
commits.map { |c| c.closes_issues(project) }.flatten.uniq.sort_by(&:id)
else
[]
end
end
# Mentionable override.
def gfm_reference
"merge request !#{iid}"
end
def target_project_path
if target_project
target_project.path_with_namespace
else
"(removed)"
end
end
def source_project_path
if source_project
source_project.path_with_namespace
else
"(removed)"
end
end
def source_project_namespace
if source_project && source_project.namespace
source_project.namespace.path
else
"(removed)"
end
end
def target_project_namespace
if target_project && target_project.namespace
target_project.namespace.path
else
"(removed)"
end
end
def source_branch_exists?
return false unless self.source_project
self.source_project.repository.branch_names.include?(self.source_branch)
end
def target_branch_exists?
return false unless self.target_project
self.target_project.repository.branch_names.include?(self.target_branch)
end
# Reset merge request events cache
#
# Since we do cache @event we need to reset cache in special cases:
# * when a merge request is updated
# Events cache stored like events/23-20130109142513.
# The cache key includes updated_at timestamp.
# Thus it will automatically generate a new fragment
# when the event is updated because the key changes.
def reset_events_cache
Event.where(target_id: self.id, target_type: 'MergeRequest').
order('id DESC').limit(100).
update_all(updated_at: Time.now)
end
def merge_commit_message
message = "Merge branch '#{source_branch}' into '#{target_branch}'"
message << "\n\n"
message << title.to_s
message << "\n\n"
message << description.to_s
message
end
# Return array of possible target branches
# dependes on target project of MR
def target_branches
if target_project.nil?
[]
else
target_project.repository.branch_names
end
end
# Return array of possible source branches
# dependes on source project of MR
def source_branches
if source_project.nil?
[]
else
source_project.repository.branch_names
end
end
end
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