/
publish_toolstate.py
executable file
·222 lines (195 loc) · 7.38 KB
/
publish_toolstate.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import re
import json
import datetime
import collections
import textwrap
try:
import urllib2
except ImportError:
import urllib.request as urllib2
# List of people to ping when the status of a tool changed.
MAINTAINERS = {
'miri': '@oli-obk @RalfJung @eddyb',
'clippy-driver': '@Manishearth @llogiq @mcarton @oli-obk',
'rls': '@nrc @Xanewok',
'rustfmt': '@nrc @topecongiro',
'book': '@carols10cents @steveklabnik',
'nomicon': '@frewsxcv @Gankro',
'reference': '@steveklabnik @Havvy @matthewjasper @alercah',
'rust-by-example': '@steveklabnik @marioidival @projektir',
}
REPOS = {
'miri': 'https://github.com/solson/miri',
'clippy-driver': 'https://github.com/rust-lang/rust-clippy',
'rls': 'https://github.com/rust-lang/rls',
'rustfmt': 'https://github.com/rust-lang/rustfmt',
'book': 'https://github.com/rust-lang/book',
'nomicon': 'https://github.com/rust-lang-nursery/nomicon',
'reference': 'https://github.com/rust-lang-nursery/reference',
'rust-by-example': 'https://github.com/rust-lang/rust-by-example',
}
def read_current_status(current_commit, path):
'''Reads build status of `current_commit` from content of `history/*.tsv`
'''
with open(path, 'rU') as f:
for line in f:
(commit, status) = line.split('\t', 1)
if commit == current_commit:
return json.loads(status)
return {}
def issue(
tool,
maintainers,
relevant_pr_number,
relevant_pr_user,
pr_reviewer,
):
# Open an issue about the toolstate failure.
gh_url = 'https://api.github.com/repos/rust-lang/rust/issues'
assignees = [x.strip() for x in maintainers.split('@') if x != '']
assignees.append(relevant_pr_user)
response = urllib2.urlopen(urllib2.Request(
gh_url,
json.dumps({
'body': textwrap.dedent('''\
Hello, this is your friendly neighborhood mergebot.
After merging PR {}, I observed that the tool {} no longer builds.
A follow-up PR to the repository {} is needed to fix the fallout.
cc @{}, do you think you would have time to do the follow-up work?
If so, that would be great!
cc @{}, the PR reviewer, and @rust-lang/compiler -- nominating for prioritization.
''').format(relevant_pr_number, tool, REPOS[tool], relevant_pr_user, pr_reviewer),
'title': '`{}` no longer builds after {}'.format(tool, relevant_pr_number),
'assignees': assignees,
'labels': ['T-compiler', 'I-nominated'],
}),
{
'Authorization': 'token ' + github_token,
'Content-Type': 'application/json',
}
))
response.read()
def update_latest(
current_commit,
relevant_pr_number,
relevant_pr_url,
relevant_pr_user,
pr_reviewer,
current_datetime
):
'''Updates `_data/latest.json` to match build result of the given commit.
'''
with open('_data/latest.json', 'rb+') as f:
latest = json.load(f, object_pairs_hook=collections.OrderedDict)
current_status = {
os: read_current_status(current_commit, 'history/' + os + '.tsv')
for os in ['windows', 'linux']
}
slug = 'rust-lang/rust'
message = textwrap.dedent('''\
📣 Toolstate changed by {}!
Tested on commit {}@{}.
Direct link to PR: <{}>
''').format(relevant_pr_number, slug, current_commit, relevant_pr_url)
anything_changed = False
for status in latest:
tool = status['tool']
changed = False
build_failed = False
for os, s in current_status.items():
old = status[os]
new = s.get(tool, old)
status[os] = new
if new > old:
# things got fixed or at least the status quo improved
changed = True
message += '🎉 {} on {}: {} → {} (cc {}, @rust-lang/infra).\n' \
.format(tool, os, old, new, MAINTAINERS.get(tool))
elif new < old:
# tests or builds are failing and were not failing before
changed = True
title = '💔 {} on {}: {} → {}' \
.format(tool, os, old, new)
message += '{} (cc {}, @rust-lang/infra).\n' \
.format(title, MAINTAINERS.get(tool))
# only create issues for build failures. Other failures can be spurious
if new == 'build-fail':
build_failed = True
if build_failed:
try:
issue(
tool, MAINTAINERS.get(tool),
relevant_pr_number, relevant_pr_user, pr_reviewer,
)
except IOError as (errno, strerror):
# network errors will simply end up not creating an issue, but that's better
# than failing the entire build job
print "I/O error({0}): {1}".format(errno, strerror)
except:
print "Unexpected error:", sys.exc_info()[0]
raise
if changed:
status['commit'] = current_commit
status['datetime'] = current_datetime
anything_changed = True
if not anything_changed:
return ''
f.seek(0)
f.truncate(0)
json.dump(latest, f, indent=4, separators=(',', ': '))
return message
if __name__ == '__main__':
cur_commit = sys.argv[1]
cur_datetime = datetime.datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%SZ')
cur_commit_msg = sys.argv[2]
save_message_to_path = sys.argv[3]
github_token = sys.argv[4]
# assume that PR authors are also owners of the repo where the branch lives
relevant_pr_match = re.search(
'Auto merge of #([0-9]+) - ([^:]+):[^,]+ r=([^\s]+)',
cur_commit_msg,
)
if relevant_pr_match:
number = relevant_pr_match.group(1)
relevant_pr_user = relevant_pr_match.group(2)
relevant_pr_number = 'rust-lang/rust#' + number
relevant_pr_url = 'https://github.com/rust-lang/rust/pull/' + number
pr_reviewer = relevant_pr_match.group(3)
else:
number = '-1'
relevant_pr_user = '<unknown user>'
relevant_pr_number = '<unknown PR>'
relevant_pr_url = '<unknown>'
pr_reviewer = '<unknown reviewer>'
message = update_latest(
cur_commit,
relevant_pr_number,
relevant_pr_url,
relevant_pr_user,
pr_reviewer,
cur_datetime
)
if not message:
print('<Nothing changed>')
sys.exit(0)
print(message)
if not github_token:
print('Dry run only, not committing anything')
sys.exit(0)
with open(save_message_to_path, 'w') as f:
f.write(message)
# Write the toolstate comment on the PR as well.
gh_url = 'https://api.github.com/repos/rust-lang/rust/issues/{}/comments' \
.format(number)
response = urllib2.urlopen(urllib2.Request(
gh_url,
json.dumps({'body': message}),
{
'Authorization': 'token ' + github_token,
'Content-Type': 'application/json',
}
))
response.read()