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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    if (sys.version_info < (3, 0)):
29        f = open(file, 'rt')
30    else:
31        f = open(file, 'rt', encoding="ascii", errors='replace', newline='')
32    error = False
33    for lineNum, line in enumerate(f):
34        if line.endswith(" \n") or line.endswith("\t\n"):
35            error = True
36            print("%s:%i trailing whitespace" % (file, lineNum+1))
37        if " \t" in line:
38            error = True
39            print("%s:%i merged <space><tab>" % (file, lineNum+1))
40        if line.endswith("\r") or line.endswith("\r\n"):
41            error = True
42            print("%s:%i incorrect line ending" % (file, lineNum+1))
43    f.close()
44
45    return not error
46
47def checkWhitespace (files):
48    error = False
49    for file in files:
50        if isTextFile(file):
51            if not checkFileWhitespace(file):
52                error = True
53
54    return not error
55
56if __name__ == "__main__":
57    parser = ArgumentParser()
58    parser.add_argument("-e", "--only-errors",  action="store_true", dest="onlyErrors",   default=False, help="Print only on error")
59    parser.add_argument("-i", "--only-changed", action="store_true", dest="useGitIndex",  default=False, help="Check only modified files. Uses git.")
60
61    args = parser.parse_args()
62
63    if args.useGitIndex:
64        files = getChangedFiles()
65    else:
66        files = getAllProjectFiles()
67
68    error = not checkWhitespace(files)
69
70    if error:
71        print("One or more checks failed")
72        sys.exit(1)
73    if not args.onlyErrors:
74        print("All checks passed")
75