1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/config/rebuild_check.py Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,44 @@
1.4 +# This Source Code Form is subject to the terms of the Mozilla Public
1.5 +# License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 +# file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 +
1.8 +import os
1.9 +import errno
1.10 +
1.11 +def mtime(path):
1.12 + try:
1.13 + return os.stat(path).st_mtime
1.14 + except OSError as e:
1.15 + if e.errno == errno.ENOENT:
1.16 + return -1
1.17 + raise
1.18 +
1.19 +def rebuild_check(args):
1.20 + target = args[0]
1.21 + deps = args[1:]
1.22 + t = mtime(target)
1.23 + if t < 0:
1.24 + print target
1.25 + return
1.26 +
1.27 + newer = []
1.28 + removed = []
1.29 + for dep in deps:
1.30 + deptime = mtime(dep)
1.31 + if deptime < 0:
1.32 + removed.append(dep)
1.33 + elif mtime(dep) > t:
1.34 + newer.append(dep)
1.35 +
1.36 + if newer and removed:
1.37 + print 'Rebuilding %s because %s changed and %s was removed' % (target, ', '.join(newer), ', '.join(removed))
1.38 + elif newer:
1.39 + print 'Rebuilding %s because %s changed' % (target, ', '.join(newer))
1.40 + elif removed:
1.41 + print 'Rebuilding %s because %s was removed' % (target, ', '.join(removed))
1.42 + else:
1.43 + print 'Rebuilding %s for an unknown reason' % target
1.44 +
1.45 +if __name__ == '__main__':
1.46 + import sys
1.47 + rebuild_check(sys.argv[1:])
