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