1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdarg.h>
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <unistd.h>
21
22 #include <gtest/gtest.h>
23
24 #include "Color.h"
25
26 namespace android {
27 namespace gtest_extras {
28
ShouldUseColor()29 static bool ShouldUseColor() {
30 const auto& gtest_color = ::testing::GTEST_FLAG(color);
31 if (gtest_color == "yes" || gtest_color == "true" || gtest_color == "t") {
32 return true;
33 }
34 if (gtest_color != "auto") {
35 return false;
36 }
37
38 bool stdout_is_tty = isatty(STDOUT_FILENO) != 0;
39 if (!stdout_is_tty) {
40 return false;
41 }
42
43 std::string color_term;
44 const char* const color_term_env = getenv("COLORTERM");
45 if (color_term_env != nullptr) {
46 color_term = color_term_env;
47 }
48 std::string term;
49 const char* const term_env = getenv("TERM");
50 if (term_env != nullptr) {
51 term = term_env;
52 }
53 return !color_term.empty() || term == "xterm" || term == "xterm-color" ||
54 term == "xterm-256color" || term == "screen" || term == "screen-256color" ||
55 term == "tmux" || term == "tmux-256color" || term == "rxvt-unicode" ||
56 term == "rxvt-unicode-256color" || term == "linux" || term == "cygwing";
57 }
58
ColoredPrintf(const char * color,const char * fmt,...)59 void ColoredPrintf(const char* color, const char* fmt, ...) {
60 static const bool use_color = ShouldUseColor();
61
62 va_list args;
63 va_start(args, fmt);
64
65 if (!use_color) {
66 vprintf(fmt, args);
67 } else {
68 printf("%s", color);
69 vprintf(fmt, args);
70 printf("%s", COLOR_RESET);
71 }
72
73 va_end(args);
74 }
75
76 } // namespace gtest_extras
77 } // namespace android
78