dak/process_commands.py

   1 #! /usr/bin/env python
   2 #
   3 # Copyright (C) 2012, Ansgar Burchardt <ansgar@debian.org>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along
  16 # with this program; if not, write to the Free Software Foundation, Inc.,
  17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19 import apt_pkg
  20 import datetime
  21 import os
  22 import sys
  23 import time
  24
  25 from daklib.config import Config
  26 from daklib.command import CommandError, CommandFile
  27 from daklib.daklog import Logger
  28 from daklib.fstransactions import FilesystemTransaction
  29 from daklib.gpg import GpgException
  30 from daklib.utils import find_next_free
  31
  32 def usage():
  33     print """Usage: dak process-commands [-d <directory>] [<command-file>...]
  34
  35 process command files
  36 """
  37
  38 def main(argv=None):
  39     if argv is None:
  40         argv = sys.argv
  41
  42     arguments = [('h', 'help', 'Process-Commands::Options::Help'),
  43                  ('d', 'directory', 'Process-Commands::Options::Directory', 'HasArg')]
  44
  45     cnf = Config()
  46     cnf['Process-Commands::Options::Dummy'] = ''
  47     filenames = apt_pkg.parse_commandline(cnf.Cnf, arguments, argv)
  48     options = cnf.subtree('Process-Commands::Options')
  49
  50     if 'Help' in options or (len(filenames) == 0 and 'Directory' not in options):
  51         usage()
  52         sys.exit(0)
  53
  54     log = Logger('command')
  55
  56     now = datetime.datetime.now()
  57     donedir = os.path.join(cnf['Dir::Done'], now.strftime('%Y/%m/%d'))
  58     rejectdir = cnf['Dir::Reject']
  59
  60     if len(filenames) == 0:
  61         filenames = [ fn for fn in os.listdir(options['Directory']) if fn.endswith('.dak-commands') ]
  62
  63     for fn in filenames:
  64         basename = os.path.basename(fn)
  65         if not fn.endswith('.dak-commands'):
  66             log.log(['unexpected filename', basename])
  67             continue
  68
  69         with open(fn, 'r') as fh:
  70             data = fh.read()
  71
  72         try:
  73             command = CommandFile(basename, data, log)
  74             command.evaluate()
  75         except:
  76             created = os.stat(fn).st_mtime
  77             now = time.time()
  78             too_new = (now - created < int(cnf.get('Dinstall::SkipTime', '60')))
  79             if too_new:
  80                 log.log(['skipped (too new)'])
  81                 continue
  82             log.log(['reject', basename])
  83             dst = find_next_free(os.path.join(rejectdir, basename))
  84         else:
  85             log.log(['done', basename])
  86             dst = find_next_free(os.path.join(donedir, basename))
  87
  88         with FilesystemTransaction() as fs:
  89             fs.unlink(fn)
  90             fs.create(dst, mode=0o644).write(data)
  91             fs.commit()
  92
  93     log.close()
  94
  95 if __name__ == '__main__':
  96     main()