gitlabhq/app/models/merge_request.rb

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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
# project_id :integer not null
# author_id :integer
# assignee_id :integer
# title :string(255)
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# state :string(255) not null
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# created_at :datetime not null
# updated_at :datetime not null
# st_commits :text(2147483647)
# st_diffs :text(2147483647)
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# merge_status :integer default(1), not null
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#
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# milestone_id :integer
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require Rails.root.join("app/models/commit")
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require Rails.root.join("lib/static_model")
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class MergeRequest < ActiveRecord::Base
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include Issuable
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attr_accessible :title, :assignee_id, :target_branch, :source_branch, :milestone_id,
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:author_id_of_changes, :state_event
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attr_accessor :should_remove_source_branch
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state_machine :state, initial: :opened do
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event :close do
transition [:reopened, :opened] => :closed
end
event :merge do
transition [:reopened, :opened] => :merged
end
event :reopen do
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transition closed: :reopened
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end
state :opened
state :reopened
state :closed
state :merged
end
BROKEN_DIFF = "--broken-diff"
UNCHECKED = 1
CAN_BE_MERGED = 2
CANNOT_BE_MERGED = 3
serialize :st_commits
serialize :st_diffs
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validates :source_branch, presence: true
validates :target_branch, presence: true
validate :validate_branches
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scope :merged, -> { with_state(:merged) }
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class << self
def find_all_by_branch(branch_name)
where("source_branch LIKE :branch OR target_branch LIKE :branch", branch: branch_name)
end
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def cared(user)
where('assignee_id = :user OR author_id = :user', user: user.id)
end
def find_all_by_branch(branch_name)
where("source_branch LIKE :branch OR target_branch LIKE :branch", branch: branch_name)
end
def find_all_by_milestone(milestone)
where("milestone_id = :milestone_id", milestone_id: milestone)
end
end
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def human_merge_status
merge_statuses = {
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CAN_BE_MERGED => "can_be_merged",
CANNOT_BE_MERGED => "cannot_be_merged",
UNCHECKED => "unchecked"
}
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merge_statuses[self.merge_status]
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end
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 unchecked?
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merge_status == UNCHECKED
end
def mark_as_unchecked
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self.merge_status = UNCHECKED
self.save
end
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def can_be_merged?
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merge_status == CAN_BE_MERGED
end
def check_if_can_be_merged
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self.merge_status = if Gitlab::Satellite::MergeAction.new(self.author, self).can_be_merged?
CAN_BE_MERGED
else
CANNOT_BE_MERGED
end
self.save
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end
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def diffs
st_diffs || []
end
def reloaded_diffs
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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)
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end
def last_commit
commits.first
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end
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def merge_event
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self.project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::MERGED).last
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end
def closed_event
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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? &&
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commits.any? && opened?
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end
def mark_as_unmergable
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self.merge_status = CANNOT_BE_MERGED
self.save
end
def reloaded_commits
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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)
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self.merge
Event.create(
project: self.project,
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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
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rescue
self.mark_as_unmergable
false
end
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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
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end