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#!/usr/bin/env python
import sys
import argparse
from collections import defaultdict
warn = 'Warning: {0} file "{1}" is touched by more than one package: {2}\n'
def main():
parser = argparse.ArgumentParser()
parser.add_argument('packages_file_list', nargs='*',
help='The packages-file-list to check from')
parser.add_argument('-t', '--type', metavar="TYPE",
help='Report as a TYPE file (TYPE is either target, staging, or host)')
args = parser.parse_args()
if not len(args.packages_file_list) == 1:
sys.stderr.write('No packages-file-list was provided.\n')
return False
if args.type is None:
sys.stderr.write('No type was provided\n')
return False
file_to_pkg = defaultdict(list)
with open(args.packages_file_list[0], 'rb') as pkg_file_list:
for line in pkg_file_list.readlines():
pkg, _, file = line.rstrip(b'\n').partition(b',')
file_to_pkg[file].append(pkg)
for file in file_to_pkg:
if len(file_to_pkg[file]) > 1:
# If possible, try to decode the binary strings with
# the default user's locale
try:
sys.stderr.write(warn.format(args.type, file.decode(),
[p.decode() for p in file_to_pkg[file]]))
except UnicodeDecodeError:
# ... but fallback to just dumping them raw if they
# contain non-representable chars
sys.stderr.write(warn.format(args.type, file,
file_to_pkg[file]))
if __name__ == "__main__":
sys.exit(main())
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