code.delx.au - gnu-emacs-elpa/blob - admin/forward-diffs.py

   1 #!/usr/bin/python
   2 ### forward-diffs.py --- forward emacs-elpa-diffs mails to maintainers
   3
   4 ## Copyright (C) 2012 Free Software Foundation, Inc.
   5
   6 ## Author: Glenn Morris <rgm@gnu.org>
   7
   8 ## This program is free software; you can redistribute it and/or modify
   9 ## it under the terms of the GNU General Public License as published by
  10 ## the Free Software Foundation, either version 3 of the License, or
  11 ## (at your option) any later version.
  12
  13 ## This program is distributed in the hope that it will be useful,
  14 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ## GNU General Public License for more details.
  17
  18 ## You should have received a copy of the GNU General Public License
  19 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 ### Commentary:
  22
  23 ## Forward emails from the emacs-elpa-diffs mailing list to the
  24 ## maintainer(s) of the modified files.
  25
  26 ## Example usage from procmail (all arguments are compulsory):
  27
  28 ## :0c
  29 ## * ^TO_emacs-elpa-diffs@gnu\.org
  30 ## | forward-diffs.py -m maintfile -l logfile -s sender
  31
  32 ## where
  33
  34 ## sender = your email address
  35 ## logfile = file to write log to (you might want to rotate/compress/examine it)
  36 ## maintfile = file listing packages and their maintainers, with format:
  37 ##
  38 ## package1   email1
  39 ## package2   email2,email3
  40 ##
  41 ## Use "nomail" for the email field to not send a mail.
  42 ##
  43 ## overmaintfile = like maintfile, but takes precedence over it.
  44
  45 ### Code:
  46
  47 import optparse
  48 import sys
  49 import re
  50 import email
  51 import smtplib
  52 import datetime
  53 import os
  54
  55 usage="""usage: %prog <-m maintfile> <-l logfile> <-s sender>
  56    [-o overmaintfile] [--sendmail]
  57 Take a GNU ELPA diff on stdin, and forward it to the maintainer(s)."""
  58
  59 parser = optparse.OptionParser()
  60 parser.set_usage ( usage )
  61 parser.add_option( "-m", dest="maintfile", default=None,
  62                    help="file listing packages and maintainers")
  63 parser.add_option( "-l", dest="logfile", default=None,
  64                    help="file to append output to")
  65 parser.add_option( "-o", dest="overmaintfile", default=None,
  66                    help="override file listing packages and maintainers")
  67 parser.add_option( "-s", dest="sender", default=None,
  68                    help="sender address for forwards")
  69 parser.add_option( "--sendmail", dest="sendmail", default=False,
  70                    action="store_true", help="use sendmail rather than smtp")
  71
  72 ( opts, args ) = parser.parse_args()
  73
  74 if not opts.logfile:
  75     parser.error('No logfile specified')
  76
  77 if not opts.maintfile:
  78     parser.error('No maintfile specified')
  79
  80 if not opts.sender:
  81     parser.error('No sender specified')
  82
  83
  84 try:
  85     lfile = open( opts.logfile, 'a' )
  86 except Exception as err:
  87     sys.stderr.write('Error opening logfile: %s\n' % str(err))
  88     sys.exit(1)
  89
  90
  91 try:
  92     mfile = open( opts.maintfile, 'r' )
  93 except Exception as err:
  94     lfile.write('Error opening maintfile: %s\n' % str(err))
  95     sys.exit(1)
  96
  97 ## Each element is package: maint1, maint2, ...
  98 maints = {}
  99
 100 for line in mfile:
 101     if re.match( '^#|^ *$', line ): continue
 102     (pack, maint) = line.split()
 103     maints[pack] = maint.split(',')
 104
 105 mfile.close()
 106
 107
 108 if opts.overmaintfile:
 109     try:
 110         ofile = open( opts.overmaintfile, 'r' )
 111     except Exception as err:
 112         lfile.write('Error opening overmaintfile: %s\n' % str(err))
 113         sys.exit(1)
 114
 115     for line in ofile:
 116         if re.match( '^#|^ *$', line ): continue
 117         (pack, maint) = line.split()
 118         maints[pack] = maint.split(',')
 119
 120     ofile.close()
 121
 122
 123 stdin = sys.stdin
 124
 125 text = stdin.read()
 126
 127
 128 resent_via = 'GNU ELPA diff forwarder'
 129
 130 message = email.message_from_string( text )
 131
 132 (msg_name, msg_from) = email.utils.parseaddr( message['from'] )
 133
 134 lfile.write('\nDate: %s\n' % str(datetime.datetime.now()))
 135 lfile.write('Message-ID: %s\n' % message['message-id'])
 136 lfile.write('From: %s\n' % msg_from)
 137
 138 if resent_via == message['x-resent-via']:
 139     lfile.write('Mail loop; aborting\n')
 140     sys.exit(1)
 141
 142
 143 start = False
 144 packs_seen = []
 145 maints_seen = []
 146
 147 for line in text.splitlines():
 148
 149     if re.match( '^modified:$', line ):
 150         start = True
 151         continue
 152
 153     if not start: continue
 154
 155     if re.match( '^ *$', line ): break
 156
 157
 158     reg = re.match( '^packages/([^/]+)', line.strip() )
 159     if not reg: break
 160
 161
 162     pack = reg.group(1)
 163
 164     lfile.write('Package: %s\n' % pack)
 165
 166     if pack in packs_seen:
 167         lfile.write('Already seen this package\n')
 168         continue
 169
 170     packs_seen.append(pack)
 171
 172
 173     if not pack in maints:
 174         lfile.write('Unknown maintainer\n')
 175         continue
 176
 177
 178     for maint in maints[pack]:
 179
 180         lfile.write('Maint: %s\n' % maint)
 181
 182
 183         if maint in maints_seen:
 184             lfile.write('Already seen this maintainer\n')
 185             continue
 186
 187         maints_seen.append(maint)
 188
 189
 190         if maint == "nomail":
 191             lfile.write('Not resending, no mail is requested\n')
 192             continue
 193
 194
 195         if maint == msg_from:
 196             lfile.write('Not resending, since maintainer = committer\n')
 197             continue
 198
 199
 200         forward = message
 201         forward.add_header('X-Resent-Via', resent_via)
 202         forward.add_header('Resent-To', maint)
 203         forward.add_header('Resent-From', opts.sender)
 204
 205         lfile.write('Resending via %s...\n' % ('sendmail'
 206                     if opts.sendmail else 'smtp') )
 207
 208
 209         if opts.sendmail:
 210              s = os.popen("/usr/sbin/sendmail -i -f %s %s" %
 211                           (opts.sender, maint), "w")
 212              s.write(forward.as_string())
 213              status = s.close()
 214              if status:
 215                  lfile.write('Sendmail exit status: %s\n' % status)
 216
 217         else:
 218
 219             try:
 220                 s = smtplib.SMTP('localhost')
 221             except Exception as err:
 222                 lfile.write('Error opening smtp: %s\n' % str(err))
 223                 sys.exit(1)
 224
 225             try:
 226                 s.sendmail(opts.sender, maint, forward.as_string())
 227             except Exception as err:
 228                 lfile.write('Error sending smtp: %s\n' % str(err))
 229
 230             s.quit()
 231
 232 ### forward-diffs.py ends here