summaryrefslogtreecommitdiffstats
path: root/src/script/ptl-tool.py
blob: 110fa9e3af9fd91858a328ad621f4f3b21283482 (plain)
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
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
#!/usr/bin/python3

# README:
#
# This tool's purpose is to make it easier to merge PRs into test branches and
# into main. Make sure you generate a Personal access token in GitHub and
# add it your ~/.github.key.
#
# Because developers often have custom names for the ceph upstream remote
# (https://github.com/ceph/ceph.git), You will probably want to export the
# PTL_TOOL_BASE_PATH environment variable in your shell rc files before using
# this script:
#
#     export PTL_TOOL_BASE_PATH=refs/remotes/<remotename>/
#
# and PTL_TOOL_BASE_REMOTE as the name of your Ceph upstream remote (default: "upstream"):
#
#     export PTL_TOOL_BASE_REMOTE=<remotename>
#
#
# ** Here are some basic exmples to get started: **
#
# Merging all PRs labeled 'wip-pdonnell-testing' into a new test branch:
#
# $ src/script/ptl-tool.py --pr-label wip-pdonnell-testing
# Adding labeled PR #18805 to PR list
# Adding labeled PR #18774 to PR list
# Adding labeled PR #18600 to PR list
# Will merge PRs: [18805, 18774, 18600]
# Detaching HEAD onto base: main
# Merging PR #18805
# Merging PR #18774
# Merging PR #18600
# Checked out new branch wip-pdonnell-testing-20171108.054517
# Created tag testing/wip-pdonnell-testing-20171108.054517
#
#
# Merging all PRs labeled 'wip-pdonnell-testing' into main:
#
# $ src/script/ptl-tool.py --pr-label wip-pdonnell-testing --branch main
# Adding labeled PR #18805 to PR list
# Adding labeled PR #18774 to PR list
# Adding labeled PR #18600 to PR list
# Will merge PRs: [18805, 18774, 18600]
# Detaching HEAD onto base: main
# Merging PR #18805
# Merging PR #18774
# Merging PR #18600
# Checked out branch main
#
# Now push to main:
# $ git push upstream main
# ...
#
#
# Merging PR #1234567 and #2345678 into a new test branch with a testing label added to the PR:
#
# $ src/script/ptl-tool.py 1234567 2345678 --label wip-pdonnell-testing
# Detaching HEAD onto base: main
# Merging PR #1234567
# Labeled PR #1234567 wip-pdonnell-testing
# Merging PR #2345678
# Labeled PR #2345678 wip-pdonnell-testing
# Deleted old test branch wip-pdonnell-testing-20170928
# Created branch wip-pdonnell-testing-20170928
# Created tag testing/wip-pdonnell-testing-20170928_03
#
#
# Merging PR #1234567 into main leaving a detached HEAD (i.e. do not update your repo's main branch) and do not label:
#
# $ src/script/ptl-tool.py --branch HEAD --merge-branch-name main 1234567
# Detaching HEAD onto base: main
# Merging PR #1234567
# Leaving HEAD detached; no branch anchors your commits
#
# Now push to main:
# $ git push upstream HEAD:main
#
#
# Merging PR #12345678 into luminous leaving a detached HEAD (i.e. do not update your repo's main branch) and do not label:
#
# $ src/script/ptl-tool.py --base luminous --branch HEAD --merge-branch-name luminous 12345678
# Detaching HEAD onto base: luminous
# Merging PR #12345678
# Leaving HEAD detached; no branch anchors your commits
#
# Now push to luminous:
# $ git push upstream HEAD:luminous
#
#
# Merging all PRs labelled 'wip-pdonnell-testing' into main leaving a detached HEAD:
#
# $ src/script/ptl-tool.py --base main --branch HEAD --merge-branch-name main --pr-label wip-pdonnell-testing
# Adding labeled PR #18192 to PR list
# Will merge PRs: [18192]
# Detaching HEAD onto base: main
# Merging PR #18192
# Leaving HEAD detached; no branch anchors your commit


# TODO
# Look for check failures?
# redmine issue update: http://www.redmine.org/projects/redmine/wiki/Rest_Issues

import argparse
import codecs
import datetime
import getpass
import git
import itertools
import json
import logging
import os
import re
import requests
import sys

from os.path import expanduser

log = logging.getLogger(__name__)
log.addHandler(logging.StreamHandler())
log.setLevel(logging.INFO)

BASE_PROJECT = os.getenv("PTL_TOOL_BASE_PROJECT", "ceph")
BASE_REPO = os.getenv("PTL_TOOL_BASE_REPO", "ceph")
BASE_REMOTE = os.getenv("PTL_TOOL_BASE_REMOTE", "upstream")
BASE_PATH = os.getenv("PTL_TOOL_BASE_PATH", "refs/remotes/upstream/")
GITDIR = os.getenv("PTL_TOOL_GITDIR", ".")
USER = os.getenv("PTL_TOOL_USER", getpass.getuser())
with open(expanduser("~/.github.key")) as f:
    PASSWORD = f.read().strip()
TEST_BRANCH = os.getenv("PTL_TOOL_TEST_BRANCH", "wip-{user}-testing-%Y%m%d.%H%M%S")

SPECIAL_BRANCHES = ('main', 'luminous', 'jewel', 'HEAD')

INDICATIONS = [
    re.compile("(Reviewed-by: .+ <[\w@.-]+>)", re.IGNORECASE),
    re.compile("(Acked-by: .+ <[\w@.-]+>)", re.IGNORECASE),
    re.compile("(Tested-by: .+ <[\w@.-]+>)", re.IGNORECASE),
]

# find containing git dir
git_dir = GITDIR
max_levels = 6
while not os.path.exists(git_dir + '/.git'):
    git_dir += '/..'
    max_levels -= 1
    if max_levels < 0:
        break

CONTRIBUTORS = {}
NEW_CONTRIBUTORS = {}
with codecs.open(git_dir + "/.githubmap", encoding='utf-8') as f:
    comment = re.compile("\s*#")
    patt = re.compile("([\w-]+)\s+(.*)")
    for line in f:
        if comment.match(line):
            continue
        m = patt.match(line)
        CONTRIBUTORS[m.group(1)] = m.group(2)

BZ_MATCH = re.compile("(.*https?://bugzilla.redhat.com/.*)")
TRACKER_MATCH = re.compile("(.*https?://tracker.ceph.com/.*)")

def get(session, url, params=None, paging=True):
    if params is None:
        params = {}
    params['per_page'] = 100

    log.debug(f"Fetching {url}")
    response = session.get(url, auth=(USER, PASSWORD), params=params)
    log.debug(f"Response = {response}; links = {response.headers.get('link', '')}")
    if response.status_code != 200:
        log.error(f"Failed to fetch {url}: {response}")
        sys.exit(1)
    j = response.json()
    yield j
    if paging:
        link = response.headers.get('link', None)
        page = 2
        while link is not None and 'next' in link:
            log.debug(f"Fetching {url}")
            new_params = dict(params)
            new_params.update({'page': page})
            response = session.get(url, auth=(USER, PASSWORD), params=new_params)
            log.debug(f"Response = {response}; links = {response.headers.get('link', '')}")
            if response.status_code != 200:
                log.error(f"Failed to fetch {url}: {response}")
                sys.exit(1)
            yield response.json()
            link = response.headers.get('link', None)
            page += 1

def get_credits(session, pr, pr_req):
    comments = [pr_req]

    log.debug(f"Getting comments for #{pr}")
    endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/issues/{pr}/comments"
    for c in get(session, endpoint):
        comments.extend(c)

    log.debug(f"Getting reviews for #{pr}")
    endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/pulls/{pr}/reviews"
    reviews = []
    for c in get(session, endpoint):
        comments.extend(c)
        reviews.extend(c)

    log.debug(f"Getting review comments for #{pr}")
    endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/pulls/{pr}/comments"
    for c in get(session, endpoint):
        comments.extend(c)

    credits = set()
    for comment in comments:
        body = comment["body"]
        if body:
            url = comment["html_url"]
            for m in BZ_MATCH.finditer(body):
                log.info("[ {url} ] BZ cited: {cite}".format(url=url, cite=m.group(1)))
            for m in TRACKER_MATCH.finditer(body):
                log.info("[ {url} ] Ceph tracker cited: {cite}".format(url=url, cite=m.group(1)))
            for indication in INDICATIONS:
                for cap in indication.findall(comment["body"]):
                    credits.add(cap)

    new_new_contributors = {}
    for review in reviews:
        if review["state"] == "APPROVED":
            user = review["user"]["login"]
            try:
                credits.add("Reviewed-by: "+CONTRIBUTORS[user])
            except KeyError as e:
                try:
                    credits.add("Reviewed-by: "+NEW_CONTRIBUTORS[user])
                except KeyError as e:
                    try:
                        name = input("Need name for contributor \"%s\" (use ^D to skip); Reviewed-by: " % user)
                        name = name.strip()
                        if len(name) == 0:
                            continue
                        NEW_CONTRIBUTORS[user] = name
                        new_new_contributors[user] = name
                        credits.add("Reviewed-by: "+name)
                    except EOFError as e:
                        continue

    return "\n".join(credits), new_new_contributors

def build_branch(args):
    base = args.base
    branch = datetime.datetime.utcnow().strftime(args.branch).format(user=USER)
    label = args.label
    merge_branch_name = args.merge_branch_name
    if merge_branch_name is False:
        merge_branch_name = branch

    session = requests.Session()

    if label:
        # Check the label format
        if re.search(r'\bwip-(.*?)-testing\b', label) is None:
            log.error("Unknown Label '{lblname}'. Label Format: wip-<name>-testing".format(lblname=label))
            sys.exit(1)

        # Check if the Label exist in the repo
        endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/labels/{label}"
        get(session, endpoint, paging=False)

    G = git.Repo(args.git)

    # First get the latest base branch and PRs from BASE_REMOTE
    remote = getattr(G.remotes, BASE_REMOTE)
    remote.fetch()

    prs = args.prs
    if args.pr_label is not None:
        if args.pr_label == '' or args.pr_label.isspace():
            log.error("--pr-label must have a non-space value")
            sys.exit(1)
        payload = {'labels': args.pr_label, 'sort': 'created', 'direction': 'desc'}
        endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/issues"
        labeled_prs = []
        for l in get(session, endpoint, params=payload):
            labeled_prs.extend(l)
        if len(labeled_prs) == 0:
            log.error("Search for PRs matching label '{}' returned no results!".format(args.pr_label))
            sys.exit(1)
        for pr in labeled_prs:
            if pr['pull_request']:
                n = pr['number']
                log.info("Adding labeled PR #{} to PR list".format(n))
                prs.append(n)
    log.info("Will merge PRs: {}".format(prs))

    if base == 'HEAD':
        log.info("Branch base is HEAD; not checking out!")
    else:
        log.info("Detaching HEAD onto base: {}".format(base))
        try:
            base_path = args.base_path + base
            base = next(ref for ref in G.refs if ref.path == base_path)
        except StopIteration:
            log.error("Branch " + base + " does not exist!")
            sys.exit(1)

        # So we know that we're not on an old test branch, detach HEAD onto ref:
        base.checkout()

    for pr in prs:
        pr = int(pr)
        log.info("Merging PR #{pr}".format(pr=pr))

        remote_ref = "refs/pull/{pr}/head".format(pr=pr)
        fi = remote.fetch(remote_ref)
        if len(fi) != 1:
            log.error("PR {pr} does not exist?".format(pr=pr))
            sys.exit(1)
        tip = fi[0].ref.commit

        endpoint = f"https://api.github.com/repos/{BASE_PROJECT}/{BASE_REPO}/pulls/{pr}"
        response = next(get(session, endpoint, paging=False))

        message = "Merge PR #%d into %s\n\n* %s:\n" % (pr, merge_branch_name, remote_ref)

        for commit in G.iter_commits(rev="HEAD.."+str(tip)):
            message = message + ("\t%s\n" % commit.message.split('\n', 1)[0])
            # Get tracker issues / bzs cited so the PTL can do updates
            short = commit.hexsha[:8]
            for m in BZ_MATCH.finditer(commit.message):
                log.info("[ {sha1} ] BZ cited: {cite}".format(sha1=short, cite=m.group(1)))
            for m in TRACKER_MATCH.finditer(commit.message):
                log.info("[ {sha1} ] Ceph tracker cited: {cite}".format(sha1=short, cite=m.group(1)))

        message = message + "\n"
        if args.credits:
            (addendum, new_contributors) = get_credits(session, pr, response)
            message += addendum
        else:
            new_contributors = []

        G.git.merge(tip.hexsha, '--no-ff', m=message)

        if new_contributors:
            # Check out the PR, add a commit adding to .githubmap
            log.info("adding new contributors to githubmap in merge commit")
            with open(git_dir + "/.githubmap", "a") as f:
                for c in new_contributors:
                    f.write("%s %s\n" % (c, new_contributors[c]))
            G.index.add([".githubmap"])
            G.git.commit("--amend", "--no-edit")

        if label:
            req = session.post("https://api.github.com/repos/{project}/{repo}/issues/{pr}/labels".format(pr=pr, project=BASE_PROJECT, repo=BASE_REPO), data=json.dumps([label]), auth=(USER, PASSWORD))
            if req.status_code != 200:
                log.error("PR #%d could not be labeled %s: %s" % (pr, label, req))
                sys.exit(1)
            log.info("Labeled PR #{pr} {label}".format(pr=pr, label=label))

    # If the branch is 'HEAD', leave HEAD detached (but use "main" for commit message)
    if branch == 'HEAD':
        log.info("Leaving HEAD detached; no branch anchors your commits")
    else:
        created_branch = False
        try:
            G.head.reference = G.create_head(branch)
            log.info("Checked out new branch {branch}".format(branch=branch))
            created_branch = True
        except:
            G.head.reference = G.create_head(branch, force=True)
            log.info("Checked out branch {branch}".format(branch=branch))

        if created_branch:
            # tag it for future reference.
            tag = "testing/%s" % branch
            git.refs.tag.Tag.create(G, tag)
            log.info("Created tag %s" % tag)

def main():
    parser = argparse.ArgumentParser(description="Ceph PTL tool")
    default_base = 'main'
    default_branch = TEST_BRANCH
    default_label = ''
    if len(sys.argv) > 1 and sys.argv[1] in SPECIAL_BRANCHES:
        argv = sys.argv[2:]
        default_branch = 'HEAD' # Leave HEAD detached
        default_base = default_branch
        default_label = False
    else:
        argv = sys.argv[1:]
    parser.add_argument('--branch', dest='branch', action='store', default=default_branch, help='branch to create ("HEAD" leaves HEAD detached; i.e. no branch is made)')
    parser.add_argument('--merge-branch-name', dest='merge_branch_name', action='store', default=False, help='name of the branch for merge messages')
    parser.add_argument('--base', dest='base', action='store', default=default_base, help='base for branch')
    parser.add_argument('--base-path', dest='base_path', action='store', default=BASE_PATH, help='base for branch')
    parser.add_argument('--git-dir', dest='git', action='store', default=git_dir, help='git directory')
    parser.add_argument('--label', dest='label', action='store', default=default_label, help='label PRs for testing')
    parser.add_argument('--pr-label', dest='pr_label', action='store', help='label PRs for testing')
    parser.add_argument('--no-credits', dest='credits', action='store_false', help='skip indication search (Reviewed-by, etc.)')
    parser.add_argument('prs', metavar="PR", type=int, nargs='*', help='Pull Requests to merge')
    args = parser.parse_args(argv)
    return build_branch(args)

if __name__ == "__main__":
    main()