forked from openkylin/platform_build
128 lines
3.5 KiB
Python
Executable File
128 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright (C) 2009 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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#
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# Finds files with the specified name under a particular directory, stopping
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# the search in a given subdirectory when the file is found.
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#
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import os
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import sys
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def perform_find(mindepth, prune, dirlist, filenames):
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result = []
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pruneleaves = set(map(lambda x: os.path.split(x)[1], prune))
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seen = set()
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for rootdir in dirlist:
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rootdepth = rootdir.count("/")
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for root, dirs, files in os.walk(rootdir, followlinks=True):
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# prune
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check_prune = False
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for d in dirs:
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if d in pruneleaves:
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check_prune = True
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break
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if check_prune:
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i = 0
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while i < len(dirs):
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if dirs[i] in prune:
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del dirs[i]
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else:
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i += 1
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# mindepth
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if mindepth > 0:
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depth = 1 + root.count("/") - rootdepth
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if depth < mindepth:
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continue
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# match
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for filename in filenames:
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if filename in files:
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result.append(os.path.join(root, filename))
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del dirs[:]
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# filter out inodes that have already been seen due to symlink loops
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i = 0
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while i < len(dirs):
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st = os.stat(os.path.join(root, dirs[i]))
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key = (st.st_dev, st.st_ino)
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if key in seen:
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del dirs[i]
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else:
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i += 1
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seen.add(key)
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return result
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def usage():
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sys.stderr.write("""Usage: %(progName)s [<options>] [--dir=<dir>] <filenames>
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Options:
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--mindepth=<mindepth>
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Both behave in the same way as their find(1) equivalents.
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--prune=<dirname>
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Avoids returning results from inside any directory called <dirname>
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(e.g., "*/out/*"). May be used multiple times.
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--dir=<dir>
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Add a directory to search. May be repeated multiple times. For backwards
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compatibility, if no --dir argument is provided then all but the last entry
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in <filenames> are treated as directories.
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""" % {
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"progName": os.path.split(sys.argv[0])[1],
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})
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sys.exit(1)
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def main(argv):
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mindepth = -1
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prune = []
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dirlist = []
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i=1
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while i<len(argv) and len(argv[i])>2 and argv[i][0:2] == "--":
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arg = argv[i]
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if arg.startswith("--mindepth="):
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try:
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mindepth = int(arg[len("--mindepth="):])
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except ValueError:
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usage()
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elif arg.startswith("--prune="):
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p = arg[len("--prune="):]
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if len(p) == 0:
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usage()
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prune.append(p)
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elif arg.startswith("--dir="):
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d = arg[len("--dir="):]
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if len(p) == 0:
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usage()
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dirlist.append(d)
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else:
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usage()
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i += 1
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if len(dirlist) == 0: # backwards compatibility
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if len(argv)-i < 2: # need both <dirlist> and <filename>
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usage()
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dirlist = argv[i:-1]
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filenames = [argv[-1]]
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else:
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if len(argv)-i < 1: # need <filename>
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usage()
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filenames = argv[i:]
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results = list(set(perform_find(mindepth, prune, dirlist, filenames)))
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results.sort()
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for r in results:
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print r
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if __name__ == "__main__":
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main(sys.argv)
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