Change update logic to be backwards compatible with old format.

autoupdate.py

 # Copyright (c) 2009-2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from buildutil import BuildObject
 from xml.dom import minidom
 import cherrypy
 import os
 import shutil
 import subprocess
@@ skipping 243 matching lines @@
                              '--read_only',
                              '--rootfs_mountpt=%s' % rootfs_dir,
                              '--stateful_mountpt=%s' % stateful_dir,
                             ])
       _LogMessage('Tarring up /usr/local and /var!')
       subprocess.check_call(['sudo',
                              'tar',
                              '-czf',
                              output_gz,
                              '--directory=%s' % stateful_dir,
+                             '--transform="s,dev_image,dev_image_new,"',

[petkov, 2010/11/09 21:31:12]

Maybe s,^dev_image,... and s,^var,... Otherwise if any filename under dev_image
contains the "var" substring it will be renamed.

Also, you can probably do a single sed expression with semicolon but I'm not
sure that would improve readability.

[sosa, 2010/11/09 21:51:46]

Good call on first.

I personally prefer what's there ... i thought about using one expression but
since this is easier to read I decided to stick with it

On 2010/11/09 21:31:12, petkov wrote:

+                             '--transform="s,var,var_new,"',
                              'dev_image',
                              'var',
                             ])
     except:
       _LogMessage('Failed to create stateful update file')
       raise
     finally:
       # Unmount best effort regardless.
       subprocess.call(['%s/mount_gpt_image.sh' % self.crosutils,
                        '--unmount',
@@ skipping 314 matching lines @@
         is_delta_format = self._IsDeltaFormatFile(filename)
         if label:
           url = '%s/%s/update.gz' % (static_urlbase, label)
         else:
           url = '%s/update.gz' % static_urlbase
 
         _LogMessage('Responding to client to use url %s to get image.' % url)
         return self.GetUpdatePayload(hash, sha256, size, url, is_delta_format)
       else:
         return self.GetNoUpdatePayload()