src/tools/publish_toolstate.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 # Copyright 2017 The Rust Project Developers. See the COPYRIGHT
   5 # file at the top-level directory of this distribution and at
   6 # http://rust-lang.org/COPYRIGHT.
   7 #
   8 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   9 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
  10 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
  11 # option. This file may not be copied, modified, or distributed
  12 # except according to those terms.
  13
  14 import sys
  15 import re
  16 import json
  17 import copy
  18 import datetime
  19 import collections
  20
  21 # List of people to ping when the status of a tool changed.
  22 MAINTAINERS = {
  23     'miri': '@oli-obk @RalfJung @eddyb',
  24     'clippy-driver': '@Manishearth @llogiq @mcarton @oli-obk',
  25     'rls': '@nrc',
  26     'rustfmt': '@nrc',
  27 }
  28
  29
  30 def read_current_status(current_commit, path):
  31     '''Reads build status of `current_commit` from content of `history/*.tsv`
  32     '''
  33     with open(path, 'rU') as f:
  34         for line in f:
  35             (commit, status) = line.split('\t', 1)
  36             if commit == current_commit:
  37                 return json.loads(status)
  38     return {}
  39
  40
  41 def update_latest(current_commit, relevant_pr_number, current_datetime):
  42     '''Updates `_data/latest.json` to match build result of the given commit.
  43     '''
  44     with open('_data/latest.json', 'rb+') as f:
  45         latest = json.load(f, object_pairs_hook=collections.OrderedDict)
  46
  47         current_status = {
  48             os: read_current_status(current_commit, 'history/' + os + '.tsv')
  49             for os in ['windows', 'linux']
  50         }
  51
  52         slug = 'rust-lang/rust'
  53         message = '📣 Toolstate changed by {}!\n\nTested on commit {}@{}.\n\n' \
  54             .format(relevant_pr_number, slug, current_commit)
  55         anything_changed = False
  56         for status in latest:
  57             tool = status['tool']
  58             changed = False
  59
  60             for os, s in current_status.items():
  61                 old = status[os]
  62                 new = s.get(tool, old)
  63                 status[os] = new
  64                 if new > old:
  65                     changed = True
  66                     message += '🎉 {} on {}: {} → {}.\n' \
  67                         .format(tool, os, old, new)
  68                 elif new < old:
  69                     changed = True
  70                     message += '💔 {} on {}: {} → {} (cc {}).\n' \
  71                         .format(tool, os, old, new, MAINTAINERS[tool])
  72
  73             if changed:
  74                 status['commit'] = current_commit
  75                 status['datetime'] = current_datetime
  76                 anything_changed = True
  77
  78         if not anything_changed:
  79             return ''
  80
  81         f.seek(0)
  82         f.truncate(0)
  83         json.dump(latest, f, indent=4, separators=(',', ': '))
  84         return message
  85
  86
  87 if __name__ == '__main__':
  88     cur_commit = sys.argv[1]
  89     cur_datetime = datetime.datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%SZ')
  90     cur_commit_msg = sys.argv[2]
  91     save_message_to_path = sys.argv[3]
  92
  93     relevant_pr_match = re.search('#[0-9]+', cur_commit_msg)
  94     if relevant_pr_match:
  95         relevant_pr_number = 'rust-lang/rust' + relevant_pr_match.group(0)
  96     else:
  97         relevant_pr_number = '<unknown PR>'
  98
  99     message = update_latest(cur_commit, relevant_pr_number, cur_datetime)
 100     if message:
 101         print(message)
 102         with open(save_message_to_path, 'w') as f:
 103             f.write(message)
 104     else:
 105         print('<Nothing changed>')