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<?php /* * This file is part of Composer. * * (c) Nils Adermann <[email protected]> * Jordi Boggiano <[email protected]> * * 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 <[email protected]> * @author Konstantin Kudryashov <[email protected]> * @author Helmut Hummel <[email protected]> */ 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 (!$binaries) { return; } Platform::workaroundFilesystemIssues(); foreach ($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, $package); } elseif ($this->binCompat === "symlink") { $this->installSymlinkBinaries($binPath, $link); } Silencer::call('chmod', $binPath, 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); $link .= '.bat'; if (file_exists($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)); Silencer::call('chmod', $link, 0777 & ~umask()); } } protected function installSymlinkBinaries($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)); Silencer::call('chmod', $link, 0777 & ~umask()); } 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; } }