config/rebuild_check.py@97036ab72558 (annotated)
config/rebuild_check.py
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | # This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | # License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | # file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| michael@0 | 4 | |
| michael@0 | 5 | import os |
| michael@0 | 6 | import errno |
| michael@0 | 7 | |
| michael@0 | 8 | def mtime(path): |
| michael@0 | 9 | try: |
| michael@0 | 10 | return os.stat(path).st_mtime |
| michael@0 | 11 | except OSError as e: |
| michael@0 | 12 | if e.errno == errno.ENOENT: |
| michael@0 | 13 | return -1 |
| michael@0 | 14 | raise |
| michael@0 | 15 | |
| michael@0 | 16 | def rebuild_check(args): |
| michael@0 | 17 | target = args[0] |
| michael@0 | 18 | deps = args[1:] |
| michael@0 | 19 | t = mtime(target) |
| michael@0 | 20 | if t < 0: |
| michael@0 | 21 | print target |
| michael@0 | 22 | return |
| michael@0 | 23 | |
| michael@0 | 24 | newer = [] |
| michael@0 | 25 | removed = [] |
| michael@0 | 26 | for dep in deps: |
| michael@0 | 27 | deptime = mtime(dep) |
| michael@0 | 28 | if deptime < 0: |
| michael@0 | 29 | removed.append(dep) |
| michael@0 | 30 | elif mtime(dep) > t: |
| michael@0 | 31 | newer.append(dep) |
| michael@0 | 32 | |
| michael@0 | 33 | if newer and removed: |
| michael@0 | 34 | print 'Rebuilding %s because %s changed and %s was removed' % (target, ', '.join(newer), ', '.join(removed)) |
| michael@0 | 35 | elif newer: |
| michael@0 | 36 | print 'Rebuilding %s because %s changed' % (target, ', '.join(newer)) |
| michael@0 | 37 | elif removed: |
| michael@0 | 38 | print 'Rebuilding %s because %s was removed' % (target, ', '.join(removed)) |
| michael@0 | 39 | else: |
| michael@0 | 40 | print 'Rebuilding %s for an unknown reason' % target |
| michael@0 | 41 | |
| michael@0 | 42 | if __name__ == '__main__': |
| michael@0 | 43 | import sys |
| michael@0 | 44 | rebuild_check(sys.argv[1:]) |
