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      1 #!/usr/bin/env python
      2 # Copyright (C) 2018 The Android Open Source Project
      3 #
      4 # Licensed under the Apache License, Version 2.0 (the "License");
      5 # you may not use this file except in compliance with the License.
      6 # You may obtain a copy of the License at
      7 #
      8 #      http://www.apache.org/licenses/LICENSE-2.0
      9 #
     10 # Unless required by applicable law or agreed to in writing, software
     11 # distributed under the License is distributed on an "AS IS" BASIS,
     12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 # See the License for the specific language governing permissions and
     14 # limitations under the License.
     15 
     16 """ Script to list all files in a directory filtering by pattern.
     17 
     18 Do NOT use this script to pull in sources for GN targets. Globbing inputs is
     19 a bad idea, as it plays very badly with git leaving untracked files around. This
     20 script should be used only for cases where false positives won't affect the
     21 output of the build but just cause spurious re-runs (e.g. as input section of
     22 an "action" target).
     23 """
     24 from __future__ import print_function 
     25 import argparse
     26 import fnmatch
     27 import os
     28 import sys
     29 
     30 def main():
     31   parser = argparse.ArgumentParser()
     32   parser.add_argument('--filter', default=[], action='append')
     33   parser.add_argument('--exclude', default=[], action='append')
     34   parser.add_argument('--deps', default=None)
     35   parser.add_argument('--output', default=None)
     36   parser.add_argument('--root', required=True)
     37   args = parser.parse_args()
     38 
     39   fout = open(args.output, 'w') if args.output else sys.stdout
     40   def writepath(path):
     41     if args.deps:
     42       path = '\t' + path
     43     print(path, file=fout)
     44 
     45   root = args.root
     46   if not root.endswith('/'):
     47     root += '/'
     48   if not os.path.exists(root):
     49     return 0
     50 
     51   if args.deps:
     52     print(args.deps + ':', file=fout)
     53   for pardir, dirs, files in os.walk(root, topdown=True):
     54     assert pardir.startswith(root)
     55     relpar = pardir[len(root):]
     56     dirs[:] = [d for d in dirs if os.path.join(relpar, d) not in args.exclude]
     57     for fname in files:
     58       fpath = os.path.join(pardir, fname)
     59       match = len(args.filter) == 0
     60       for filter in args.filter:
     61         if fnmatch.fnmatch(fpath, filter):
     62           match = True
     63           break
     64       if match:
     65         writepath(fpath)
     66 
     67 if __name__ == '__main__':
     68   sys.exit(main())
     69