gecko-dev/config/rebuild_check.py

31 lines
755 B
Python

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import os
def mtime(path):
return os.stat(path).st_mtime
def rebuild_check(args):
target = args[0]
deps = args[1:]
if not os.path.exists(target):
print target
return
t = mtime(target)
newer = []
for dep in deps:
if mtime(dep) > t:
newer.append(dep)
if newer:
print 'Rebuilding %s because %s changed' % (target, ', '.join(newer))
else:
print 'Rebuilding %s for an unknown reason' % target
if __name__ == '__main__':
import sys
rebuild_check(sys.argv[1:])