1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
# == 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)
# created_at :datetime not null
# updated_at :datetime not null
# st_commits :text(2147483647)
# st_diffs :text(2147483647)
# milestone_id :integer
# state :string(255)
# merge_status :string(255)
#
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 :branch_conflict, "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
load_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 = dump_commits(unmerged_commits)
save
end
commits
end
def unmerged_commits
self.project.repository.
commits_between(self.target_branch, self.source_branch).
sort_by(&:created_at).
reverse
end
def merge!(user_id)
self.author_id_of_changes = user_id
self.merge
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
private
def dump_commits(commits)
commits.map(&:to_hash)
end
def load_commits(array)
array.map { |hash| Commit.new(Gitlab::Git::Commit.new(hash)) }
end
end