* * @see \Rector\Tests\Console\Formatter\ColorConsoleDiffFormatterTest */ final class ColorConsoleDiffFormatter { /** * @var string * @see https://regex101.com/r/ovLMDF/1 */ private const PLUS_START_REGEX = '#^(\\+.*)#'; /** * @var string * @see https://regex101.com/r/xwywpa/1 */ private const MINUT_START_REGEX = '#^(\\-.*)#'; /** * @var string * @see https://regex101.com/r/CMlwa8/1 */ private const AT_START_REGEX = '#^(@.*)#'; /** * @readonly * @var string */ private $template; public function __construct() { $this->template = \sprintf(' ---------- begin diff ----------%s%%s%s ----------- end diff -----------' . \PHP_EOL, \PHP_EOL, \PHP_EOL); } public function format(string $diff) : string { return $this->formatWithTemplate($diff, $this->template); } private function formatWithTemplate(string $diff, string $template) : string { $escapedDiff = OutputFormatter::escape(\rtrim($diff)); $escapedDiffLines = NewLineSplitter::split($escapedDiff); // remove description of added + remove; obvious on diffs foreach ($escapedDiffLines as $key => $escapedDiffLine) { if ($escapedDiffLine === '--- Original') { unset($escapedDiffLines[$key]); } if ($escapedDiffLine === '+++ New') { unset($escapedDiffLines[$key]); } } $coloredLines = \array_map(function (string $string) : string { $string = $this->makePlusLinesGreen($string); $string = $this->makeMinusLinesRed($string); $string = $this->makeAtNoteCyan($string); if ($string === ' ') { return ''; } return $string; }, $escapedDiffLines); return \sprintf($template, \implode(\PHP_EOL, $coloredLines)); } private function makePlusLinesGreen(string $string) : string { return Strings::replace($string, self::PLUS_START_REGEX, '$1'); } private function makeMinusLinesRed(string $string) : string { return Strings::replace($string, self::MINUT_START_REGEX, '$1'); } private function makeAtNoteCyan(string $string) : string { return Strings::replace($string, self::AT_START_REGEX, '$1'); } }