zypper-etckeeper.py

   1 #!/usr/bin/env python
   2
   3 import errno
   4 import subprocess
   5 import zypp_plugin
   6
   7
   8 def _call_etckeeper(install_arg):
   9     # zypper interprets the plugin's stdout as described in
  10     # http://doc.opensuse.org/projects/libzypp/HEAD/zypp-plugins.html so it's
  11     # important that we don't write anything to it. We therefore redirect
  12     # etckeeper's stdout to the plugin's stderr. Since zypper writes the
  13     # stderr of plugins to its log file, etckeeper's stdout will go there as
  14     # well.
  15
  16     subprocess.call(['etckeeper', install_arg], stdout=2)
  17
  18
  19 class EtckeeperPlugin(zypp_plugin.Plugin):
  20     def PLUGINBEGIN(self, headers, body):
  21         _call_etckeeper('pre-install')
  22         self.ack()
  23
  24     def PLUGINEND(self, headers, body):
  25         try:
  26             _call_etckeeper('post-install')
  27         except OSError as e:
  28             # if etckeeper was just removed, executing it will fail with
  29             # ENOENT
  30             if e.errno != errno.ENOENT:
  31                 # reraise so that we don't hide other errors than etckeeper
  32                 # not existing
  33                 raise
  34         self.ack()
  35
  36
  37 plugin = EtckeeperPlugin()
  38 plugin.main()