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a80feff40b
MozReview-Commit-ID: 6B60uh4n2nY --HG-- extra : rebase_source : 4fd44789a9ee6376c72bae1132f73c81dd1eacbc
50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import os
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import errno
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def mtime(path):
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try:
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return os.stat(path).st_mtime
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except OSError as e:
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if e.errno == errno.ENOENT:
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return -1
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raise
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def rebuild_check(args):
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target = args[0]
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deps = args[1:]
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t = mtime(target)
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if t < 0:
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print(target)
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return
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newer = []
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removed = []
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for dep in deps:
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deptime = mtime(dep)
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if deptime < 0:
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removed.append(dep)
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elif mtime(dep) > t:
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newer.append(dep)
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if newer and removed:
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print('Rebuilding %s because %s changed and %s was removed' % (
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target, ', '.join(newer), ', '.join(removed)))
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elif newer:
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print('Rebuilding %s because %s changed' % (target, ', '.join(newer)))
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elif removed:
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print('Rebuilding %s because %s was removed' % (
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target, ', '.join(removed)))
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else:
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print('Rebuilding %s for an unknown reason' % target)
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if __name__ == '__main__':
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import sys
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rebuild_check(sys.argv[1:])
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