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| 1 | +<?php |
| 2 | + |
| 3 | +namespace WP_CLI\Tests\Context; |
| 4 | + |
| 5 | +use RuntimeException; |
| 6 | + |
| 7 | +/** |
| 8 | + * Run a system process, and learn what happened. |
| 9 | + */ |
| 10 | +class Process { |
| 11 | + /** |
| 12 | + * @var string The full command to execute by the system. |
| 13 | + */ |
| 14 | + private $command; |
| 15 | + |
| 16 | + /** |
| 17 | + * @var string|null The path of the working directory for the process or NULL if not specified (defaults to current working directory). |
| 18 | + */ |
| 19 | + private $cwd; |
| 20 | + |
| 21 | + /** |
| 22 | + * @var array Environment variables to set when running the command. |
| 23 | + */ |
| 24 | + private $env; |
| 25 | + |
| 26 | + /** |
| 27 | + * @var array Descriptor spec for `proc_open()`. |
| 28 | + */ |
| 29 | + private static $descriptors = [ |
| 30 | + 0 => STDIN, |
| 31 | + 1 => [ 'pipe', 'w' ], |
| 32 | + 2 => [ 'pipe', 'w' ], |
| 33 | + ]; |
| 34 | + |
| 35 | + /** |
| 36 | + * @var bool Whether to log run time info or not. |
| 37 | + */ |
| 38 | + public static $log_run_times = false; |
| 39 | + |
| 40 | + /** |
| 41 | + * @var array Array of process run time info, keyed by process command, each a 2-element array containing run time and run count. |
| 42 | + */ |
| 43 | + public static $run_times = []; |
| 44 | + |
| 45 | + /** |
| 46 | + * @param string $command Command to execute. |
| 47 | + * @param string|null $cwd Directory to execute the command in. |
| 48 | + * @param array|null $env Environment variables to set when running the command. |
| 49 | + * |
| 50 | + * @return Process |
| 51 | + */ |
| 52 | + public static function create( $command, $cwd = null, $env = [] ) { |
| 53 | + $proc = new self(); |
| 54 | + |
| 55 | + $proc->command = $command; |
| 56 | + $proc->cwd = $cwd; |
| 57 | + $proc->env = $env; |
| 58 | + |
| 59 | + return $proc; |
| 60 | + } |
| 61 | + |
| 62 | + private function __construct() {} |
| 63 | + |
| 64 | + /** |
| 65 | + * Run the command. |
| 66 | + * |
| 67 | + * @return \WP_CLI\ProcessRun |
| 68 | + */ |
| 69 | + public function run() { |
| 70 | + \WP_CLI\Utils\check_proc_available( 'Process::run' ); |
| 71 | + |
| 72 | + $start_time = microtime( true ); |
| 73 | + |
| 74 | + $pipes = []; |
| 75 | + if ( \WP_CLI\Utils\is_windows() ) { |
| 76 | + // On Windows, leaving pipes open can cause hangs. |
| 77 | + // Redirect output to files and close stdin. |
| 78 | + $stdout_file = tempnam( sys_get_temp_dir(), 'behat-stdout-' ); |
| 79 | + $stderr_file = tempnam( sys_get_temp_dir(), 'behat-stderr-' ); |
| 80 | + $descriptors = [ |
| 81 | + 0 => [ 'pipe', 'r' ], |
| 82 | + 1 => [ 'file', $stdout_file, 'a' ], |
| 83 | + 2 => [ 'file', $stderr_file, 'a' ], |
| 84 | + ]; |
| 85 | + $proc = \WP_CLI\Utils\proc_open_compat( $this->command, $descriptors, $pipes, $this->cwd, $this->env ); |
| 86 | + fclose( $pipes[0] ); |
| 87 | + $stdout = file_get_contents( $stdout_file ); |
| 88 | + $stderr = file_get_contents( $stderr_file ); |
| 89 | + unlink( $stdout_file ); |
| 90 | + unlink( $stderr_file ); |
| 91 | + } else { |
| 92 | + $proc = \WP_CLI\Utils\proc_open_compat( $this->command, self::$descriptors, $pipes, $this->cwd, $this->env ); |
| 93 | + $stdout = stream_get_contents( $pipes[1] ); |
| 94 | + fclose( $pipes[1] ); |
| 95 | + $stderr = stream_get_contents( $pipes[2] ); |
| 96 | + fclose( $pipes[2] ); |
| 97 | + } |
| 98 | + |
| 99 | + $return_code = proc_close( $proc ); |
| 100 | + |
| 101 | + $run_time = microtime( true ) - $start_time; |
| 102 | + |
| 103 | + if ( self::$log_run_times ) { |
| 104 | + if ( ! isset( self::$run_times[ $this->command ] ) ) { |
| 105 | + self::$run_times[ $this->command ] = [ 0, 0 ]; |
| 106 | + } |
| 107 | + self::$run_times[ $this->command ][0] += $run_time; |
| 108 | + ++self::$run_times[ $this->command ][1]; |
| 109 | + } |
| 110 | + |
| 111 | + return new \WP_CLI\ProcessRun( |
| 112 | + [ |
| 113 | + 'stdout' => $stdout, |
| 114 | + 'stderr' => $stderr, |
| 115 | + 'return_code' => $return_code, |
| 116 | + 'command' => $this->command, |
| 117 | + 'cwd' => $this->cwd, |
| 118 | + 'env' => $this->env, |
| 119 | + 'run_time' => $run_time, |
| 120 | + ] |
| 121 | + ); |
| 122 | + } |
| 123 | + |
| 124 | + /** |
| 125 | + * Run the command, but throw an Exception on error. |
| 126 | + * |
| 127 | + * @return \WP_CLI\ProcessRun |
| 128 | + */ |
| 129 | + public function run_check() { |
| 130 | + $r = $this->run(); |
| 131 | + |
| 132 | + if ( $r->return_code ) { |
| 133 | + throw new RuntimeException( $r ); |
| 134 | + } |
| 135 | + |
| 136 | + return $r; |
| 137 | + } |
| 138 | + |
| 139 | + /** |
| 140 | + * Run the command, but throw an Exception on error. |
| 141 | + * Same as `run_check()` above, but checks the correct stderr. |
| 142 | + * |
| 143 | + * @return \WP_CLI\ProcessRun |
| 144 | + */ |
| 145 | + public function run_check_stderr() { |
| 146 | + $r = $this->run(); |
| 147 | + |
| 148 | + if ( $r->return_code ) { |
| 149 | + throw new RuntimeException( $r ); |
| 150 | + } |
| 151 | + |
| 152 | + if ( ! empty( $r->stderr ) ) { |
| 153 | + // If the only thing that STDERR caught was the Requests deprecated message, ignore it. |
| 154 | + // This is a temporary fix until we have a better solution for dealing with Requests |
| 155 | + // as a dependency shared between WP Core and WP-CLI. |
| 156 | + $stderr_lines = array_filter( explode( "\n", $r->stderr ) ); |
| 157 | + if ( 1 === count( $stderr_lines ) ) { |
| 158 | + $stderr_line = $stderr_lines[0]; |
| 159 | + if ( |
| 160 | + false !== strpos( |
| 161 | + $stderr_line, |
| 162 | + 'The PSR-0 `Requests_...` class names in the Request library are deprecated.' |
| 163 | + ) |
| 164 | + ) { |
| 165 | + return $r; |
| 166 | + } |
| 167 | + } |
| 168 | + |
| 169 | + throw new RuntimeException( $r ); |
| 170 | + } |
| 171 | + |
| 172 | + return $r; |
| 173 | + } |
| 174 | +} |
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