forked from composer/composer
/
BinaryInstaller.php
256 lines (220 loc) · 8.39 KB
/
BinaryInstaller.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Installer;
use Composer\IO\IOInterface;
use Composer\Package\PackageInterface;
use Composer\Util\Filesystem;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use Composer\Util\Silencer;
/**
* Utility to handle installation of package "bin"/binaries
*
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author Konstantin Kudryashov <ever.zet@gmail.com>
* @author Helmut Hummel <info@helhum.io>
*/
class BinaryInstaller
{
protected $binDir;
protected $binCompat;
protected $io;
protected $filesystem;
/**
* @param IOInterface $io
* @param string $binDir
* @param string $binCompat
* @param Filesystem $filesystem
*/
public function __construct(IOInterface $io, $binDir, $binCompat, Filesystem $filesystem = null)
{
$this->binDir = $binDir;
$this->binCompat = $binCompat;
$this->io = $io;
$this->filesystem = $filesystem ?: new Filesystem();
}
public function installBinaries(PackageInterface $package, $installPath, $warnOnOverwrite = true)
{
$binaries = $this->getBinaries($package);
if (!$binaries) {
return;
}
foreach ($binaries as $bin) {
$binPath = $installPath.'/'.$bin;
if (!file_exists($binPath)) {
$this->io->writeError(' <warning>Skipped installation of bin '.$bin.' for package '.$package->getName().': file not found in package</warning>');
continue;
}
// in case a custom installer returned a relative path for the
// $package, we can now safely turn it into a absolute path (as we
// already checked the binary's existence). The following helpers
// will require absolute paths to work properly.
$binPath = realpath($binPath);
$this->initializeBinDir();
$link = $this->binDir.'/'.basename($bin);
if (file_exists($link)) {
if (is_link($link)) {
// likely leftover from a previous install, make sure
// that the target is still executable in case this
// is a fresh install of the vendor.
Silencer::call('chmod', $link, 0777 & ~umask());
}
if ($warnOnOverwrite) {
$this->io->writeError(' Skipped installation of bin '.$bin.' for package '.$package->getName().': name conflicts with an existing file');
}
continue;
}
if ($this->binCompat === "auto") {
if (Platform::isWindows() || Platform::isWindowsSubsystemForLinux()) {
$this->installFullBinaries($binPath, $link, $bin, $package);
} else {
$this->installSymlinkBinaries($binPath, $link);
}
} elseif ($this->binCompat === "full") {
$this->installFullBinaries($binPath, $link, $bin, $package);
}
Silencer::call('chmod', $link, 0777 & ~umask());
}
}
public function removeBinaries(PackageInterface $package)
{
$this->initializeBinDir();
$binaries = $this->getBinaries($package);
if (!$binaries) {
return;
}
foreach ($binaries as $bin) {
$link = $this->binDir.'/'.basename($bin);
if (is_link($link) || file_exists($link)) {
$this->filesystem->unlink($link);
}
if (file_exists($link.'.bat')) {
$this->filesystem->unlink($link.'.bat');
}
}
// attempt removing the bin dir in case it is left empty
if (is_dir($this->binDir) && $this->filesystem->isDirEmpty($this->binDir)) {
Silencer::call('rmdir', $this->binDir);
}
}
public static function determineBinaryCaller($bin)
{
if ('.bat' === substr($bin, -4) || '.exe' === substr($bin, -4)) {
return 'call';
}
$handle = fopen($bin, 'r');
$line = fgets($handle);
fclose($handle);
if (preg_match('{^#!/(?:usr/bin/env )?(?:[^/]+/)*(.+)$}m', $line, $match)) {
return trim($match[1]);
}
return 'php';
}
protected function getBinaries(PackageInterface $package)
{
return $package->getBinaries();
}
protected function installFullBinaries($binPath, $link, $bin, PackageInterface $package)
{
// add unixy support for cygwin and similar environments
if ('.bat' !== substr($binPath, -4)) {
$this->installUnixyProxyBinaries($binPath, $link);
@chmod($link, 0777 & ~umask());
$link .= '.bat';
if (file_exists($link)) {
$this->io->writeError(' Skipped installation of bin '.$bin.'.bat proxy for package '.$package->getName().': a .bat proxy was already installed');
}
}
if (!file_exists($link)) {
file_put_contents($link, $this->generateWindowsProxyCode($binPath, $link));
}
}
protected function installSymlinkBinaries($binPath, $link)
{
if (!$this->filesystem->relativeSymlink($binPath, $link)) {
$this->installUnixyProxyBinaries($binPath, $link);
}
}
protected function installUnixyProxyBinaries($binPath, $link)
{
file_put_contents($link, $this->generateUnixyProxyCode($binPath, $link));
}
protected function initializeBinDir()
{
$this->filesystem->ensureDirectoryExists($this->binDir);
$this->binDir = realpath($this->binDir);
}
protected function generateWindowsProxyCode($bin, $link)
{
$binPath = $this->filesystem->findShortestPath($link, $bin);
$caller = self::determineBinaryCaller($bin);
return "@ECHO OFF\r\n".
"setlocal DISABLEDELAYEDEXPANSION\r\n".
"SET BIN_TARGET=%~dp0/".trim(ProcessExecutor::escape($binPath), '"\'')."\r\n".
"{$caller} \"%BIN_TARGET%\" %*\r\n";
}
protected function generateUnixyProxyCode($bin, $link)
{
$binPath = $this->filesystem->findShortestPath($link, $bin);
$binDir = ProcessExecutor::escape(dirname($binPath));
$binFile = basename($binPath);
$binContents = file_get_contents($bin);
// For php files, we generate a PHP proxy instead of a shell one,
// which allows calling the proxy with a custom php process
if (preg_match('{^(?:#!(?:/usr)?/bin/env php|#!(?:/usr)?/bin/php|<?php)\r?\n}', $binContents, $match)) {
// verify the file is not a phar file, because those do not support php-proxying
if (false === ($pos = strpos($binContents, '__HALT_COMPILER')) || false === strpos(substr($binContents, 0, $pos), 'Phar::mapPhar')) {
$proxyCode = trim($match[0]);
// carry over the existing shebang if present, otherwise add our own
if ($proxyCode === "<?php") {
$proxyCode = "#!/usr/bin/env php";
}
$binPathExported = var_export($binPath, true);
return $proxyCode . "\n" . <<<PROXY
<?php
/**
* Proxy PHP file generated by Composer
*
* This file includes the referenced bin path ($binPath) using eval to remove the shebang if present
*
* @generated
*/
\$binPath = realpath(__DIR__ . "/" . $binPathExported);
\$contents = file_get_contents(\$binPath);
\$contents = preg_replace('{^#!/.+\\r?\\n<\\?(php)?}', '', \$contents, 1, \$replaced);
if (\$replaced) {
\$contents = strtr(\$contents, array(
'__FILE__' => var_export(\$binPath, true),
'__DIR__' => var_export(dirname(\$binPath), true),
));
eval(\$contents);
exit(0);
}
include \$binPath;
PROXY;
}
}
$proxyCode = <<<PROXY
#!/usr/bin/env sh
dir=\$(cd "\${0%[/\\\\]*}" > /dev/null; cd $binDir && pwd)
if [ -d /proc/cygdrive ]; then
case \$(which php) in
\$(readlink -n /proc/cygdrive)/*)
# We are in Cygwin using Windows php, so the path must be translated
dir=\$(cygpath -m "\$dir");
;;
esac
fi
"\${dir}/$binFile" "\$@"
PROXY;
return $proxyCode;
}
}