1 /*
2 * Copyright (C) 2016 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 "print.h"
18
19 #include <sys/ioctl.h>
20 #include <stdio.h>
21 #include <unistd.h>
22
23 #include "util.h"
24
25 bool g_stdoutIsTty;
26 char const* g_escapeBold;
27 char const* g_escapeRedBold;
28 char const* g_escapeGreenBold;
29 char const* g_escapeYellowBold;
30 char const* g_escapeUnderline;
31 char const* g_escapeEndColor;
32 char const* g_escapeClearLine;
33
34 void
init_print()35 init_print()
36 {
37 if (isatty(fileno(stdout))) {
38 g_stdoutIsTty = true;
39 g_escapeBold = "\033[1m";
40 g_escapeRedBold = "\033[91m\033[1m";
41 g_escapeGreenBold = "\033[92m\033[1m";
42 g_escapeYellowBold = "\033[93m\033[1m";
43 g_escapeUnderline = "\033[4m";
44 g_escapeEndColor = "\033[0m";
45 g_escapeClearLine = "\033[K";
46 } else {
47 g_stdoutIsTty = false;
48 g_escapeBold = "";
49 g_escapeRedBold = "";
50 g_escapeGreenBold = "";
51 g_escapeYellowBold = "";
52 g_escapeUnderline = "";
53 g_escapeEndColor = "";
54 g_escapeClearLine = "";
55 }
56 }
57
58 void
print_status(const char * format,...)59 print_status(const char* format, ...)
60 {
61 printf("\n%s%s", g_escapeBold, g_escapeUnderline);
62
63 va_list args;
64 va_start(args, format);
65 vfprintf(stdout, format, args);
66 va_end(args);
67
68 printf("%s\n", g_escapeEndColor);
69 }
70
71 void
print_command(const Command & command)72 print_command(const Command& command)
73 {
74 fputs(g_escapeBold, stdout);
75 for (map<string,string>::const_iterator it=command.env.begin(); it!=command.env.end(); it++) {
76 fputs(it->first.c_str(), stdout);
77 fputc('=', stdout);
78 fputs(escape_for_commandline(it->second.c_str()).c_str(), stdout);
79 putc(' ', stdout);
80 }
81 fputs(command.prog.c_str(), stdout);
82 for (vector<string>::const_iterator it=command.args.begin(); it!=command.args.end(); it++) {
83 putc(' ', stdout);
84 fputs(escape_for_commandline(it->c_str()).c_str(), stdout);
85 }
86 fputs(g_escapeEndColor, stdout);
87 fputc('\n', stdout);
88 }
89
90 void
print_error(const char * format,...)91 print_error(const char* format, ...)
92 {
93 fputs(g_escapeRedBold, stderr);
94
95 va_list args;
96 va_start(args, format);
97 vfprintf(stderr, format, args);
98 va_end(args);
99
100 fputs(g_escapeEndColor, stderr);
101 fputc('\n', stderr);
102 }
103
104 void
print_warning(const char * format,...)105 print_warning(const char* format, ...)
106 {
107 fputs(g_escapeYellowBold, stderr);
108
109 va_list args;
110 va_start(args, format);
111 vfprintf(stderr, format, args);
112 va_end(args);
113
114 fputs(g_escapeEndColor, stderr);
115 fputc('\n', stderr);
116 }
117
118 void
print_one_line(const char * format,...)119 print_one_line(const char* format, ...)
120 {
121 if (g_stdoutIsTty) {
122 struct winsize ws;
123 ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
124 int size = ws.ws_col + 1;
125 char* buf = (char*)malloc(size);
126
127 va_list args;
128 va_start(args, format);
129 vsnprintf(buf, size, format, args);
130 va_end(args);
131
132 printf("%s%s\r", buf, g_escapeClearLine);
133 free(buf);
134
135 fflush(stdout);
136 } else {
137 va_list args;
138 va_start(args, format);
139 vfprintf(stdout, format, args);
140 va_end(args);
141 printf("\n");
142 }
143 }
144
145 void
check_error(int err)146 check_error(int err)
147 {
148 if (err != 0) {
149 fputc('\n', stderr);
150 print_error("Stopping due to errors.");
151 exit(1);
152 }
153 }
154
155
156