1# -*- coding: utf-8 -*-
2
3#-------------------------------------------------------------------------
4# drawElements Quality Program utilities
5# --------------------------------------
6#
7# Copyright 2015 The Android Open Source Project
8#
9# Licensed under the Apache License, Version 2.0 (the "License");
10# you may not use this file except in compliance with the License.
11# You may obtain a copy of the License at
12#
13#      http://www.apache.org/licenses/LICENSE-2.0
14#
15# Unless required by applicable law or agreed to in writing, software
16# distributed under the License is distributed on an "AS IS" BASIS,
17# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18# See the License for the specific language governing permissions and
19# limitations under the License.
20#
21#-------------------------------------------------------------------------
22
23import sys
24from argparse import ArgumentParser
25from common import getChangedFiles, getAllProjectFiles, isTextFile
26
27def checkFileWhitespace (file):
28    f = open(file, 'rb')
29    error = False
30    for lineNum, line in enumerate(f):
31        if line.endswith(" \n") or line.endswith("\t\n"):
32            error = True
33            print "%s:%i trailing whitespace" % (file, lineNum+1)
34        if " \t" in line:
35            error = True
36            print "%s:%i merged <space><tab>" % (file, lineNum+1)
37    f.close()
38
39    return not error
40
41def checkWhitespace (files):
42    error = False
43    for file in files:
44        if isTextFile(file):
45            if not checkFileWhitespace(file):
46                error = True
47
48    return not error
49
50if __name__ == "__main__":
51    parser = ArgumentParser()
52    parser.add_argument("-e", "--only-errors",  action="store_true", dest="onlyErrors",   default=False, help="Print only on error")
53    parser.add_argument("-i", "--only-changed", action="store_true", dest="useGitIndex",  default=False, help="Check only modified files. Uses git.")
54
55    args = parser.parse_args()
56
57    if args.useGitIndex:
58        files = getChangedFiles()
59    else:
60        files = getAllProjectFiles()
61
62    error = not checkWhitespace(files)
63
64    if error:
65        print "One or more checks failed"
66        sys.exit(1)
67    if not args.onlyErrors:
68        print "All checks passed"
69