CelerityManagementSyntaxWorkflow.php
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	<?php

	final class CelerityManagementSyntaxWorkflow
	extends CelerityManagementWorkflow {

	protected function didConstruct() {
	$this
	->setName('syntax')
	->setExamples('syntax [options]')
	->setSynopsis(pht('Rebuild syntax highlighting CSS.'))
	->setArguments(
	array());
	}

	public function execute(PhutilArgumentParser $args) {
	$styles = PhabricatorSyntaxStyle::getAllStyles();

	$root = dirname(phutil_get_library_root('phabricator'));
	$root = $root.'/webroot/rsrc/css/syntax/';

	foreach ($styles as $key => $style) {
	$content = $this->generateCSS($style);
	$path = $root.'/syntax-'.$key.'.css';
	Filesystem::writeFile($path, $content);

	echo tsprintf(
	"%s\n",
	pht(
	'Rebuilt "%s" syntax CSS.',
	basename($path)));
	}

	return 0;
	}

	private function generateCSS(PhabricatorSyntaxStyle $style) {
	$key = $style->getSyntaxStyleKey();
	$provides = "syntax-{$key}-css";
	$generated = 'generated';

	$header =
	"/**\n".
	" * @provides {$provides}\n".
	" * @{$generated}\n".
	" */\n\n";

	$groups = array();
	$map = $style->getStyleMap();
	ksort($map);
	foreach ($map as $key => $value) {
	$groups[$value][] = $key;
	}

	$rules = array();
	foreach ($groups as $body => $classes) {
	$parts = array();
	foreach ($classes as $class) {
	$parts[] = ".remarkup-code .{$class}";
	}
	$rules[] = implode(",\n", $parts)." {\n {$body}\n}";
	}
	$rules = implode("\n\n", $rules);

	return $header.$rules."\n";
	}

	}