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
|
# frozen_string_literal: true
module MergeRequests
# MergeService class
#
# Do git merge and in case of success
# mark merge request as merged and execute all hooks and notifications
# Executed when you do merge via GitLab UI
#
class MergeService < MergeRequests::MergeBaseService
delegate :merge_jid, :state, to: :@merge_request
def execute(merge_request, options = {})
if project.merge_requests_ff_only_enabled && !self.is_a?(FfMergeService)
FfMergeService.new(project, current_user, params).execute(merge_request)
return
end
@merge_request = merge_request
@options = options
validate!
merge_request.in_locked_state do
if commit
after_merge
clean_merge_jid
success
end
end
log_info("Merge process finished on JID #{merge_jid} with state #{state}")
rescue MergeError => e
handle_merge_error(log_message: e.message, save_message_on_model: true)
end
private
def validate!
authorization_check!
error_check!
updated_check!
end
def authorization_check!
unless @merge_request.can_be_merged_by?(current_user)
raise_error('You are not allowed to merge this merge request')
end
end
def error_check!
super
check_source
error =
if @merge_request.should_be_rebased?
'Only fast-forward merge is allowed for your project. Please update your source branch'
elsif !@merge_request.mergeable?(skip_discussions_check: @options[:skip_discussions_check])
'Merge request is not mergeable'
elsif !@merge_request.squash && project.squash_always?
'This project requires squashing commits when merge requests are accepted.'
end
raise_error(error) if error
end
def updated_check!
unless source_matches?
raise_error('Branch has been updated since the merge was requested. '\
'Please review the changes.')
end
end
def commit
log_info("Git merge started on JID #{merge_jid}")
commit_id = try_merge
if commit_id
log_info("Git merge finished on JID #{merge_jid} commit #{commit_id}")
else
raise_error('Conflicts detected during merge')
end
merge_request.update!(merge_commit_sha: commit_id)
ensure
merge_request.update_and_mark_in_progress_merge_commit_sha(nil)
end
def try_merge
repository.merge(current_user, source, merge_request, commit_message).tap do
merge_request.update_column(:squash_commit_sha, source) if merge_request.squash_on_merge?
end
rescue Gitlab::Git::PreReceiveError => e
raise MergeError,
"Something went wrong during merge pre-receive hook. #{e.message}".strip
rescue => e
handle_merge_error(log_message: e.message)
raise_error('Something went wrong during merge')
end
def after_merge
log_info("Post merge started on JID #{merge_jid} with state #{state}")
MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
log_info("Post merge finished on JID #{merge_jid} with state #{state}")
if delete_source_branch?
::Branches::DeleteService.new(@merge_request.source_project, branch_deletion_user)
.execute(merge_request.source_branch)
end
end
def clean_merge_jid
merge_request.update_column(:merge_jid, nil)
end
def branch_deletion_user
@merge_request.force_remove_source_branch? ? @merge_request.author : current_user
end
# Verify again that the source branch can be removed, since branch may be protected,
# or the source branch may have been updated, or the user may not have permission
#
def delete_source_branch?
params.fetch('should_remove_source_branch', @merge_request.force_remove_source_branch?) &&
@merge_request.can_remove_source_branch?(branch_deletion_user)
end
def handle_merge_error(log_message:, save_message_on_model: false)
Gitlab::AppLogger.error("MergeService ERROR: #{merge_request_info} - #{log_message}")
@merge_request.update(merge_error: log_message) if save_message_on_model
end
def log_info(message)
@logger ||= Gitlab::AppLogger
@logger.info("#{merge_request_info} - #{message}")
end
def merge_request_info
merge_request.to_reference(full: true)
end
def source_matches?
# params-keys are symbols coming from the controller, but when they get
# loaded from the database they're strings
params.with_indifferent_access[:sha] == merge_request.diff_head_sha
end
end
end
|
