|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* This file is part of the box project. |
|
5
|
|
|
* |
|
6
|
|
|
* (c) Kevin Herrera <[email protected]> |
|
7
|
|
|
* Théo Fidry <[email protected]> |
|
8
|
|
|
* |
|
9
|
|
|
* This source file is subject to the MIT license that is bundled |
|
10
|
|
|
* with this source code in the file LICENSE. |
|
11
|
|
|
*/ |
|
12
|
|
|
|
|
13
|
|
|
namespace KevinGH\RequirementChecker; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* This file is copy/pasted from the Symfony project to avoid a dependency on `symfony/console` which would be too big for just using this |
|
17
|
|
|
* class. |
|
18
|
|
|
* |
|
19
|
|
|
* @license MIT (c) Fabien Potencier <[email protected]> |
|
20
|
|
|
*/ |
|
21
|
|
|
class Terminal |
|
22
|
|
|
{ |
|
23
|
|
|
private static $width; |
|
24
|
|
|
private static $height; |
|
25
|
|
|
private static $stty; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Gets the terminal width. |
|
29
|
|
|
* |
|
30
|
|
|
* @return int |
|
31
|
|
|
*/ |
|
32
|
|
|
public function getWidth() |
|
33
|
|
|
{ |
|
34
|
|
|
$width = getenv('COLUMNS'); |
|
35
|
|
|
if (false !== $width) { |
|
36
|
|
|
return (int) trim($width); |
|
37
|
|
|
} |
|
38
|
|
|
|
|
39
|
|
|
if (null === self::$width) { |
|
40
|
|
|
self::initDimensions(); |
|
41
|
|
|
} |
|
42
|
|
|
|
|
43
|
|
|
return self::$width ?: 80; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* Gets the terminal height. |
|
48
|
|
|
* |
|
49
|
|
|
* @return int |
|
50
|
|
|
*/ |
|
51
|
|
|
public function getHeight() |
|
52
|
|
|
{ |
|
53
|
|
|
$height = getenv('LINES'); |
|
54
|
|
|
if (false !== $height) { |
|
55
|
|
|
return (int) trim($height); |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
if (null === self::$height) { |
|
59
|
|
|
self::initDimensions(); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
return self::$height ?: 50; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* @internal |
|
67
|
|
|
* |
|
68
|
|
|
* @return bool |
|
69
|
|
|
*/ |
|
70
|
|
|
public static function hasSttyAvailable() |
|
71
|
|
|
{ |
|
72
|
|
|
if (null !== self::$stty) { |
|
73
|
|
|
return self::$stty; |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
exec('stty 2>&1', $output, $exitcode); |
|
77
|
|
|
|
|
78
|
|
|
return self::$stty = 0 === $exitcode; |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
private static function initDimensions() |
|
82
|
|
|
{ |
|
83
|
|
|
if ('\\' === \DIRECTORY_SEPARATOR) { |
|
84
|
|
|
if (preg_match('/^(\d+)x(\d+)(?: \((\d+)x(\d+)\))?$/', trim(getenv('ANSICON')), $matches)) { |
|
85
|
|
|
// extract [w, H] from "wxh (WxH)" |
|
86
|
|
|
// or [w, h] from "wxh" |
|
87
|
|
|
self::$width = (int) $matches[1]; |
|
88
|
|
|
self::$height = isset($matches[4]) ? (int) $matches[4] : (int) $matches[2]; |
|
89
|
|
|
} elseif (self::hasSttyAvailable()) { |
|
90
|
|
|
self::initDimensionsUsingStty(); |
|
91
|
|
|
} elseif (null !== $dimensions = self::getConsoleMode()) { |
|
92
|
|
|
// extract [w, h] from "wxh" |
|
93
|
|
|
self::$width = (int) $dimensions[0]; |
|
94
|
|
|
self::$height = (int) $dimensions[1]; |
|
95
|
|
|
} |
|
96
|
|
|
} else { |
|
97
|
|
|
self::initDimensionsUsingStty(); |
|
98
|
|
|
} |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
private static function initDimensionsUsingStty() |
|
102
|
|
|
{ |
|
103
|
|
|
if ($sttyString = self::getSttyColumns()) { |
|
104
|
|
|
if (preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) { |
|
105
|
|
|
// extract [w, h] from "rows h; columns w;" |
|
106
|
|
|
self::$width = (int) $matches[2]; |
|
107
|
|
|
self::$height = (int) $matches[1]; |
|
108
|
|
|
} elseif (preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) { |
|
109
|
|
|
// extract [w, h] from "; h rows; w columns" |
|
110
|
|
|
self::$width = (int) $matches[2]; |
|
111
|
|
|
self::$height = (int) $matches[1]; |
|
112
|
|
|
} |
|
113
|
|
|
} |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
/** |
|
117
|
|
|
* Runs and parses mode CON if it's available, suppressing any error output. |
|
118
|
|
|
* |
|
119
|
|
|
* @return int[]|null An array composed of the width and the height or null if it could not be parsed |
|
120
|
|
|
*/ |
|
121
|
|
|
private static function getConsoleMode() |
|
122
|
|
|
{ |
|
123
|
|
|
$info = self::readFromProcess('mode CON'); |
|
124
|
|
|
|
|
125
|
|
|
if (null === $info || !preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) { |
|
126
|
|
|
return null; |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
return array((int) $matches[2], (int) $matches[1]); |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* Runs and parses stty -a if it's available, suppressing any error output. |
|
134
|
|
|
* |
|
135
|
|
|
* @return string|null |
|
136
|
|
|
*/ |
|
137
|
|
|
private static function getSttyColumns() |
|
138
|
|
|
{ |
|
139
|
|
|
return self::readFromProcess('stty -a | grep columns'); |
|
140
|
|
|
} |
|
141
|
|
|
|
|
142
|
|
|
/** |
|
143
|
|
|
* @param string $command |
|
144
|
|
|
* |
|
145
|
|
|
* @return string|null |
|
146
|
|
|
*/ |
|
147
|
|
|
private static function readFromProcess($command) |
|
148
|
|
|
{ |
|
149
|
|
|
if (!\function_exists('proc_open')) { |
|
150
|
|
|
return null; |
|
151
|
|
|
} |
|
152
|
|
|
|
|
153
|
|
|
$descriptorspec = array( |
|
154
|
|
|
1 => array('pipe', 'w'), |
|
155
|
|
|
2 => array('pipe', 'w'), |
|
156
|
|
|
); |
|
157
|
|
|
|
|
158
|
|
|
$process = proc_open($command, $descriptorspec, $pipes, null, null, array('suppress_errors' => true)); |
|
159
|
|
|
if (!\is_resource($process)) { |
|
160
|
|
|
return null; |
|
161
|
|
|
} |
|
162
|
|
|
|
|
163
|
|
|
$info = stream_get_contents($pipes[1]); |
|
164
|
|
|
fclose($pipes[1]); |
|
165
|
|
|
fclose($pipes[2]); |
|
166
|
|
|
proc_close($process); |
|
167
|
|
|
|
|
168
|
|
|
return $info; |
|
169
|
|
|
} |
|
170
|
|
|
} |
|
171
|
|
|
|
humbug /
box
