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ea8314a10a
For files with lots of dependencies (i.e. libxul), printing out the entire list of changed files can be tedious. Instead, let's pick some reasonable limit for the number of files we'll explicitly show, and indicate that there are more files (but not print them out) for cases that exceed that limit. Differential Revision: https://phabricator.services.mozilla.com/D51913 --HG-- extra : moz-landing-system : lando
69 lines
1.7 KiB
Python
69 lines
1.7 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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from __future__ import absolute_import
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from __future__ import print_function
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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 deptime > t:
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newer.append(dep)
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def format_filelist(filelist):
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if not filelist:
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return None
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limit = 5
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length = len(filelist)
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if length < limit:
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return ', '.join(filelist)
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truncated = filelist[:limit]
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remaining = length - limit
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return '%s (and %d other files)' % (', '.join(truncated), remaining)
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newer = format_filelist(newer)
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removed = format_filelist(removed)
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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, newer, removed))
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elif newer:
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print('Rebuilding %s because %s changed' % (target, newer))
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elif removed:
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print('Rebuilding %s because %s was removed' % (
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target, 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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