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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        if line.endswith("\r") or line.endswith("\r\n"):
38            error = True
39            print "%s:%i incorrect line ending" % (file, lineNum+1)
40    f.close()
41
42    return not error
43
44def checkWhitespace (files):
45    error = False
46    for file in files:
47        if isTextFile(file):
48            if not checkFileWhitespace(file):
49                error = True
50
51    return not error
52
53if __name__ == "__main__":
54    parser = ArgumentParser()
55    parser.add_argument("-e", "--only-errors",  action="store_true", dest="onlyErrors",   default=False, help="Print only on error")
56    parser.add_argument("-i", "--only-changed", action="store_true", dest="useGitIndex",  default=False, help="Check only modified files. Uses git.")
57
58    args = parser.parse_args()
59
60    if args.useGitIndex:
61        files = getChangedFiles()
62    else:
63        files = getAllProjectFiles()
64
65    error = not checkWhitespace(files)
66
67    if error:
68        print "One or more checks failed"
69        sys.exit(1)
70    if not args.onlyErrors:
71        print "All checks passed"
72