top-think /
framework
| Total Complexity | 70 |
| Total Lines | 350 |
| Duplicated Lines | 0 % |
| Coverage | 0% |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Console often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Console, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 17 | class Console |
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| 18 | { |
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| 19 | |||
| 20 | /** @var Resource */ |
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| 21 | private $stdout; |
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| 22 | |||
| 23 | /** @var Formatter */ |
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| 24 | private $formatter; |
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| 25 | |||
| 26 | private $terminalDimensions; |
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| 27 | |||
| 28 | /** @var Output */ |
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| 29 | private $output; |
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| 30 | |||
| 31 | public function __construct(Output $output) |
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| 32 | { |
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| 33 | $this->output = $output; |
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| 34 | $this->formatter = new Formatter(); |
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| 35 | $this->stdout = $this->openOutputStream(); |
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| 36 | $decorated = $this->hasColorSupport($this->stdout); |
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| 37 | $this->formatter->setDecorated($decorated); |
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| 38 | } |
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| 39 | |||
| 40 | public function setDecorated($decorated) |
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| 41 | { |
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| 42 | $this->formatter->setDecorated($decorated); |
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| 43 | } |
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| 44 | |||
| 45 | public function write($messages, bool $newline = false, int $type = 0, $stream = null) |
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| 46 | { |
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| 47 | if (Output::VERBOSITY_QUIET === $this->output->getVerbosity()) { |
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| 48 | return; |
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| 49 | } |
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| 50 | |||
| 51 | $messages = (array) $messages; |
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| 52 | |||
| 53 | foreach ($messages as $message) { |
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| 54 | switch ($type) { |
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| 55 | case Output::OUTPUT_NORMAL: |
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| 56 | $message = $this->formatter->format($message); |
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| 57 | break; |
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| 58 | case Output::OUTPUT_RAW: |
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| 59 | break; |
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| 60 | case Output::OUTPUT_PLAIN: |
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| 61 | $message = strip_tags($this->formatter->format($message)); |
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| 62 | break; |
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| 63 | default: |
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| 64 | throw new \InvalidArgumentException(sprintf('Unknown output type given (%s)', $type)); |
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| 65 | } |
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| 66 | |||
| 67 | $this->doWrite($message, $newline, $stream); |
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| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | public function renderException(\Throwable $e) |
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| 72 | { |
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| 73 | $stderr = $this->openErrorStream(); |
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| 74 | $decorated = $this->hasColorSupport($stderr); |
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| 75 | $this->formatter->setDecorated($decorated); |
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| 76 | |||
| 77 | do { |
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| 78 | $title = sprintf(' [%s] ', get_class($e)); |
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| 79 | |||
| 80 | $len = $this->stringWidth($title); |
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| 81 | |||
| 82 | $width = $this->getTerminalWidth() ? $this->getTerminalWidth() - 1 : PHP_INT_MAX; |
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| 83 | |||
| 84 | if (defined('HHVM_VERSION') && $width > 1 << 31) { |
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| 85 | $width = 1 << 31; |
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| 86 | } |
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| 87 | $lines = []; |
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| 88 | foreach (preg_split('/\r?\n/', $e->getMessage()) as $line) { |
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| 89 | foreach ($this->splitStringByWidth($line, $width - 4) as $line) { |
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| 90 | |||
| 91 | $lineLength = $this->stringWidth(preg_replace('/\[[^m]*m/', '', $line)) + 4; |
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| 92 | $lines[] = [$line, $lineLength]; |
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| 93 | |||
| 94 | $len = max($lineLength, $len); |
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| 95 | } |
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| 96 | } |
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| 97 | |||
| 98 | $messages = ['', '']; |
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| 99 | $messages[] = $emptyLine = sprintf('<error>%s</error>', str_repeat(' ', $len)); |
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| 100 | $messages[] = sprintf('<error>%s%s</error>', $title, str_repeat(' ', max(0, $len - $this->stringWidth($title)))); |
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| 101 | foreach ($lines as $line) { |
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| 102 | $messages[] = sprintf('<error> %s %s</error>', $line[0], str_repeat(' ', $len - $line[1])); |
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| 103 | } |
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| 104 | $messages[] = $emptyLine; |
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| 105 | $messages[] = ''; |
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| 106 | $messages[] = ''; |
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| 107 | |||
| 108 | $this->write($messages, true, Output::OUTPUT_NORMAL, $stderr); |
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| 109 | |||
| 110 | if (Output::VERBOSITY_VERBOSE <= $this->output->getVerbosity()) { |
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| 111 | $this->write('<comment>Exception trace:</comment>', true, Output::OUTPUT_NORMAL, $stderr); |
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| 112 | |||
| 113 | // exception related properties |
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| 114 | $trace = $e->getTrace(); |
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| 115 | array_unshift($trace, [ |
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| 116 | 'function' => '', |
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| 117 | 'file' => $e->getFile() !== null ? $e->getFile() : 'n/a', |
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| 118 | 'line' => $e->getLine() !== null ? $e->getLine() : 'n/a', |
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| 119 | 'args' => [], |
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| 120 | ]); |
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| 121 | |||
| 122 | for ($i = 0, $count = count($trace); $i < $count; ++$i) { |
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| 123 | $class = isset($trace[$i]['class']) ? $trace[$i]['class'] : ''; |
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| 124 | $type = isset($trace[$i]['type']) ? $trace[$i]['type'] : ''; |
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| 125 | $function = $trace[$i]['function']; |
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| 126 | $file = isset($trace[$i]['file']) ? $trace[$i]['file'] : 'n/a'; |
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| 127 | $line = isset($trace[$i]['line']) ? $trace[$i]['line'] : 'n/a'; |
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| 128 | |||
| 129 | $this->write(sprintf(' %s%s%s() at <info>%s:%s</info>', $class, $type, $function, $file, $line), true, Output::OUTPUT_NORMAL, $stderr); |
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| 130 | } |
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| 131 | |||
| 132 | $this->write('', true, Output::OUTPUT_NORMAL, $stderr); |
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| 133 | $this->write('', true, Output::OUTPUT_NORMAL, $stderr); |
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| 134 | } |
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| 135 | } while ($e = $e->getPrevious()); |
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| 136 | |||
| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * 获取终端宽度 |
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| 141 | * @return int|null |
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| 142 | */ |
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| 143 | protected function getTerminalWidth() |
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| 148 | } |
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| 149 | |||
| 150 | /** |
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| 151 | * 获取终端高度 |
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| 152 | * @return int|null |
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| 153 | */ |
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| 154 | protected function getTerminalHeight() |
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| 155 | { |
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| 156 | $dimensions = $this->getTerminalDimensions(); |
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| 157 | |||
| 158 | return $dimensions[1]; |
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| 159 | } |
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| 160 | |||
| 161 | /** |
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| 162 | * 获取当前终端的尺寸 |
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| 163 | * @return array |
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| 164 | */ |
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| 165 | public function getTerminalDimensions(): array |
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| 166 | { |
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| 167 | if ($this->terminalDimensions) { |
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| 168 | return $this->terminalDimensions; |
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| 169 | } |
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| 170 | |||
| 171 | if ('\\' === DIRECTORY_SEPARATOR) { |
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| 172 | if (preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim(getenv('ANSICON')), $matches)) { |
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| 173 | return [(int) $matches[1], (int) $matches[2]]; |
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| 174 | } |
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| 175 | if (preg_match('/^(\d+)x(\d+)$/', $this->getMode(), $matches)) { |
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| 176 | return [(int) $matches[1], (int) $matches[2]]; |
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| 177 | } |
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| 178 | } |
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| 179 | |||
| 180 | if ($sttyString = $this->getSttyColumns()) { |
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| 181 | if (preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) { |
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| 182 | return [(int) $matches[2], (int) $matches[1]]; |
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| 183 | } |
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| 184 | if (preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) { |
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| 185 | return [(int) $matches[2], (int) $matches[1]]; |
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| 186 | } |
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| 187 | } |
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| 188 | |||
| 189 | return [null, null]; |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * 获取stty列数 |
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| 194 | * @return string |
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| 195 | */ |
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| 196 | private function getSttyColumns() |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * 获取终端模式 |
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| 217 | * @return string <width>x<height> |
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| 218 | */ |
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| 219 | private function getMode() |
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| 220 | { |
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| 221 | if (!function_exists('proc_open')) { |
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| 222 | return ''; |
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| 223 | } |
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| 224 | |||
| 225 | $descriptorspec = [1 => ['pipe', 'w'], 2 => ['pipe', 'w']]; |
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| 226 | $process = proc_open('mode CON', $descriptorspec, $pipes, null, null, ['suppress_errors' => true]); |
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| 227 | if (is_resource($process)) { |
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| 228 | $info = stream_get_contents($pipes[1]); |
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| 229 | fclose($pipes[1]); |
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| 230 | fclose($pipes[2]); |
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| 231 | proc_close($process); |
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| 232 | |||
| 233 | if (preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) { |
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| 234 | return $matches[2] . 'x' . $matches[1]; |
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| 235 | } |
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| 236 | } |
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| 237 | |||
| 238 | return ''; |
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| 239 | } |
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| 240 | |||
| 241 | private function stringWidth(string $string): int |
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| 242 | { |
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| 243 | if (!function_exists('mb_strwidth')) { |
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| 244 | return strlen($string); |
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| 245 | } |
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| 246 | |||
| 247 | if (false === $encoding = mb_detect_encoding($string)) { |
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| 248 | return strlen($string); |
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| 249 | } |
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| 250 | |||
| 251 | return mb_strwidth($string, $encoding); |
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| 252 | } |
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| 253 | |||
| 254 | private function splitStringByWidth(string $string, int $width): array |
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| 255 | { |
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| 256 | if (!function_exists('mb_strwidth')) { |
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| 257 | return str_split($string, $width); |
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| 258 | } |
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| 259 | |||
| 260 | if (false === $encoding = mb_detect_encoding($string)) { |
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| 261 | return str_split($string, $width); |
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| 262 | } |
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| 263 | |||
| 264 | $utf8String = mb_convert_encoding($string, 'utf8', $encoding); |
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| 265 | $lines = []; |
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| 266 | $line = ''; |
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| 267 | foreach (preg_split('//u', $utf8String) as $char) { |
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| 268 | if (mb_strwidth($line . $char, 'utf8') <= $width) { |
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| 269 | $line .= $char; |
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| 270 | continue; |
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| 271 | } |
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| 272 | $lines[] = str_pad($line, $width); |
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| 273 | $line = $char; |
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| 274 | } |
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| 275 | if (strlen($line)) { |
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| 276 | $lines[] = count($lines) ? str_pad($line, $width) : $line; |
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| 277 | } |
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| 278 | |||
| 279 | mb_convert_variables($encoding, 'utf8', $lines); |
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| 280 | |||
| 281 | return $lines; |
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| 282 | } |
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| 283 | |||
| 284 | private function isRunningOS400(): bool |
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| 285 | { |
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| 286 | $checks = [ |
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| 287 | function_exists('php_uname') ? php_uname('s') : '', |
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| 288 | getenv('OSTYPE'), |
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| 289 | PHP_OS, |
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| 290 | ]; |
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| 291 | return false !== stripos(implode(';', $checks), 'OS400'); |
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| 292 | } |
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| 293 | |||
| 294 | /** |
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| 295 | * 当前环境是否支持写入控制台输出到stdout. |
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| 296 | * |
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| 297 | * @return bool |
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| 298 | */ |
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| 299 | protected function hasStdoutSupport(): bool |
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| 300 | { |
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| 301 | return false === $this->isRunningOS400(); |
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| 302 | } |
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| 303 | |||
| 304 | /** |
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| 305 | * 当前环境是否支持写入控制台输出到stderr. |
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| 306 | * |
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| 307 | * @return bool |
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| 308 | */ |
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| 309 | protected function hasStderrSupport(): bool |
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| 310 | { |
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| 311 | return false === $this->isRunningOS400(); |
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| 312 | } |
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| 313 | |||
| 314 | /** |
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| 315 | * @return resource |
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| 316 | */ |
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| 317 | private function openOutputStream() |
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| 318 | { |
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| 319 | if (!$this->hasStdoutSupport()) { |
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| 320 | return fopen('php://output', 'w'); |
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| 321 | } |
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| 322 | return @fopen('php://stdout', 'w') ?: fopen('php://output', 'w'); |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * @return resource |
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| 327 | */ |
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| 328 | private function openErrorStream() |
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| 329 | { |
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| 330 | return fopen($this->hasStderrSupport() ? 'php://stderr' : 'php://output', 'w'); |
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| 331 | } |
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| 332 | |||
| 333 | /** |
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| 334 | * 将消息写入到输出。 |
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| 335 | * @param string $message 消息 |
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| 336 | * @param bool $newline 是否另起一行 |
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| 337 | * @param null $stream |
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| 338 | */ |
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| 339 | protected function doWrite($message, $newline, $stream = null) |
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| 340 | { |
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| 341 | if (null === $stream) { |
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| 342 | $stream = $this->stdout; |
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| 343 | } |
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| 344 | if (false === @fwrite($stream, $message . ($newline ? PHP_EOL : ''))) { |
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| 345 | throw new \RuntimeException('Unable to write output.'); |
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| 346 | } |
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| 347 | |||
| 348 | fflush($stream); |
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| 349 | } |
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| 350 | |||
| 351 | /** |
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| 352 | * 是否支持着色 |
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| 353 | * @param $stream |
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| 354 | * @return bool |
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| 355 | */ |
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| 356 | protected function hasColorSupport($stream): bool |
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| 367 | } |
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| 368 | |||
| 369 | } |
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| 370 |
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