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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
|
module Github
class Import
class MergeRequest < ::MergeRequest
self.table_name = 'merge_requests'
self.reset_callbacks :save
self.reset_callbacks :commit
self.reset_callbacks :update
self.reset_callbacks :validate
end
class Issue < ::Issue
self.table_name = 'issues'
self.reset_callbacks :save
self.reset_callbacks :commit
self.reset_callbacks :update
self.reset_callbacks :validate
end
class Note < ::Note
self.table_name = 'notes'
self.reset_callbacks :save
self.reset_callbacks :commit
self.reset_callbacks :update
self.reset_callbacks :validate
end
attr_reader :project, :repository, :cached_label_ids, :cached_user_ids, :errors
def initialize(project)
@project = project
@repository = project.repository
@cached_label_ids = {}
@cached_user_ids = {}
@errors = []
end
def execute(owner, repo, token)
# Fetch repository
begin
project.create_repository
project.repository.add_remote('github', "https://{token}@github.com/#{owner}/#{repo}.git")
project.repository.set_remote_as_mirror('github')
project.repository.fetch_remote('github', forced: true)
project.repository.remove_remote('github')
rescue Gitlab::Shell::Error => e
error(:project, "https://github.com/#{owner}/#{repo}.git", e.message)
end
# Fetch labels
url = "/repos/#{owner}/#{repo}/labels"
loop do
response = Github::Client.new.get(url)
response.body.each do |raw|
begin
label = Github::Representation::Label.new(raw)
# TODO: we should take group labels in account
next if project.labels.where(title: label.title).exists?
project.labels.create!(title: label.title, color: label.color)
rescue => e
error(:label, label.url, e.message)
end
end
break unless url = response.rels[:next]
end
# Cache labels
# TODO: we should take group labels in account
project.labels.select(:id, :title).find_each do |label|
@cached_label_ids[label.title] = label.id
end
# Fetch milestones
url = "/repos/#{owner}/#{repo}/milestones"
loop do
response = Github::Client.new.get(url, state: :all)
response.body.each do |raw|
begin
milestone = Github::Representation::Milestone.new(raw)
next if project.milestones.where(iid: milestone.iid).exists?
project.milestones.create!(
iid: milestone.iid,
title: milestone.title,
description: milestone.description,
due_date: milestone.due_date,
state: milestone.state,
created_at: milestone.created_at,
updated_at: milestone.updated_at
)
rescue => e
error(:milestone, milestone.url, e.message)
end
end
break unless url = response.rels[:next]
end
# Fetch pull requests
url = "/repos/#{owner}/#{repo}/pulls"
loop do
response = Github::Client.new.get(url, state: :all, sort: :created, direction: :asc)
response.body.each do |raw|
pull_request = Github::Representation::PullRequest.new(project, raw)
merge_request = MergeRequest.find_or_initialize_by(iid: pull_request.iid, source_project_id: project.id)
next unless merge_request.new_record? && pull_request.valid?
begin
restore_source_branch(pull_request) unless pull_request.source_branch_exists?
restore_target_branch(pull_request) unless pull_request.target_branch_exists?
merge_request.iid = pull_request.iid
merge_request.title = pull_request.title
merge_request.description = pull_request.description
merge_request.source_project = pull_request.source_project
merge_request.source_branch = pull_request.source_branch_name
merge_request.source_branch_sha = pull_request.source_branch_sha
merge_request.target_project = pull_request.target_project
merge_request.target_branch = pull_request.target_branch_name
merge_request.target_branch_sha = pull_request.target_branch_sha
merge_request.state = pull_request.state
merge_request.milestone_id = milestone_id(pull_request.milestone)
merge_request.author_id = user_id(pull_request.author, project.creator_id)
merge_request.assignee_id = user_id(pull_request.assignee)
merge_request.created_at = pull_request.created_at
merge_request.updated_at = pull_request.updated_at
merge_request.save!(validate: false)
merge_request.merge_request_diffs.create
# Fetch review comments
review_comments_url = "/repos/#{owner}/#{repo}/pulls/#{pull_request.iid}/comments"
loop do
review_comments = Github::Client.new.get(review_comments_url)
ActiveRecord::Base.no_touching do
review_comments.body.each do |raw|
begin
comment = Github::Representation::Comment.new(raw)
note = Note.new
note.project_id = project.id
note.noteable = merge_request
note.note = comment.note
note.commit_id = comment.commit_id
note.line_code = comment.line_code
note.author_id = user_id(comment.author, project.creator_id)
note.type = comment.type
note.created_at = comment.created_at
note.updated_at = comment.updated_at
note.save!(validate: false)
rescue => e
error(:review_comment, comment.url, e.message)
end
end
end
break unless review_comments_url = review_comments.rels[:next]
end
# Fetch comments
comments_url = "/repos/#{owner}/#{repo}/issues/#{pull_request.iid}/comments"
loop do
comments = Github::Client.new.get(comments_url)
ActiveRecord::Base.no_touching do
comments.body.each do |raw|
begin
comment = Github::Representation::Comment.new(raw)
note = Note.new
note.project_id = project.id
note.noteable = merge_request
note.note = comment.note
note.author_id = user_id(comment.author, project.creator_id)
note.created_at = comment.created_at
note.updated_at = comment.updated_at
note.save!(validate: false)
rescue => e
error(:comment, comment.url, e.message)
end
end
end
break unless comments_url = comments.rels[:next]
end
rescue => e
error(:pull_request, pull_request.url, e.message)
ensure
clean_up_restored_branches(pull_request)
end
end
break unless url = response.rels[:next]
end
# Fetch issues
url = "/repos/#{owner}/#{repo}/issues"
loop do
response = Github::Client.new.get(url, state: :all, sort: :created, direction: :asc)
response.body.each do |raw|
representation = Github::Representation::Issue.new(raw)
begin
# Every pull request is an issue, but not every issue
# is a pull request. For this reason, "shared" actions
# for both features, like manipulating assignees, labels
# and milestones, are provided within the Issues API.
if representation.pull_request?
next unless representation.has_labels?
merge_request = MergeRequest.find_by!(target_project_id: project.id, iid: representation.iid)
merge_request.update_attribute(:label_ids, label_ids(representation.labels))
else
next if Issue.where(iid: representation.iid, project_id: project.id).exists?
issue = Issue.new
issue.iid = representation.iid
issue.project_id = project.id
issue.title = representation.title
issue.description = representation.description
issue.state = representation.state
issue.label_ids = label_ids(representation.labels)
issue.milestone_id = milestone_id(representation.milestone)
issue.author_id = user_id(representation.author, project.creator_id)
issue.assignee_id = user_id(representation.assignee)
issue.created_at = representation.created_at
issue.updated_at = representation.updated_at
issue.save(validate: false)
if representation.has_comments?
# Fetch comments
comments_url = "/repos/#{owner}/#{repo}/issues/#{issue.iid}/comments"
loop do
comments = Github::Client.new.get(comments_url)
ActiveRecord::Base.no_touching do
comments.body.each do |raw|
begin
comment = Github::Representation::Comment.new(raw)
note = Note.new
note.project_id = project.id
note.noteable = issue
note.note = comment.note
note.author_id = user_id(comment.author, project.creator_id)
note.created_at = comment.created_at
note.updated_at = comment.updated_at
note.save!(validate: false)
rescue => e
error(:comment, comment.url, e.message)
end
end
end
break unless comments_url = comments.rels[:next]
end
end
end
rescue => e
error(:issue, representation.url, e.message)
end
end
break unless url = response.rels[:next]
end
repository.expire_content_cache
errors
end
private
def restore_source_branch(pull_request)
repository.create_branch(pull_request.source_branch_name, pull_request.source_branch_sha)
end
def restore_target_branch(pull_request)
repository.create_branch(pull_request.target_branch_name, pull_request.target_branch_sha)
end
def remove_branch(name)
repository.delete_branch(name)
rescue Rugged::ReferenceError
errors << { type: :branch, url: nil, error: "Could not clean up restored branch: #{name}" }
end
def clean_up_restored_branches(pull_request)
return if pull_request.opened?
remove_branch(pull_request.source_branch_name) unless pull_request.source_branch_exists?
remove_branch(pull_request.target_branch_name) unless pull_request.target_branch_exists?
end
def label_ids(issuable)
issuable.map { |attrs| cached_label_ids[attrs.fetch('name')] }.compact
end
def milestone_id(milestone)
return unless milestone.present?
project.milestones.select(:id).find_by(iid: milestone.iid)&.id
end
def user_id(user, fallback_id = nil)
return unless user.present?
return cached_user_ids[user.id] if cached_user_ids.key?(user.id)
cached_user_ids[user.id] = find_by_external_uid(user.id) || find_by_email(user.email) || fallback_id
end
def find_by_email(email)
return nil unless email
::User.find_by_any_email(email)&.id
end
def find_by_external_uid(id)
return nil unless id
identities = ::Identity.arel_table
::User.select(:id)
.joins(:identities)
.where(identities[:provider].eq(:github).and(identities[:extern_uid].eq(id)))
.first&.id
end
def error(type, url, message)
errors << { type: type, url: Gitlab::UrlSanitizer.sanitize(url), error: message }
end
end
end
|