133 lines
3.5 KiB
PHP
133 lines
3.5 KiB
PHP
<?php
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define('DS', DIRECTORY_SEPARATOR);
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require_once __DIR__ . DS . '..' . DS . 'vendor' . DS . 'autoload.php';
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class Compressor
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{
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public static function css($content)
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{
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return CssMin::minify($content);
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}
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public static function js($content)
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{
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return JSMin::minify($content);
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}
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public static function html($html)
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{
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$illegalTags = ['script', 'link', 'textarea', 'pre'];
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$chunks = preg_split( '/(<(' . join('|', $illegalTags) . ')(?:\/|.*?\/\2)>)/ms', $html, -1,
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PREG_SPLIT_DELIM_CAPTURE);
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$buffer = '';
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foreach ($chunks as $chunk)
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{
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if (in_array($chunk, $illegalTags))
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continue;
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if (preg_match('/^<(' . join('|', $illegalTags) . ')/', $chunk))
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{
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$buffer .= $chunk;
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continue;
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}
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# remove new lines & tabs
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$chunk = preg_replace( '/[\\n\\r\\t]+/', ' ', $chunk);
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# remove extra whitespace
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$chunk = preg_replace( '/\\s{2,}/', ' ', $chunk);
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# remove inter-tag whitespace
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$chunk = preg_replace( '/>\\s</', '><', $chunk);
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# remove CSS & JS comments
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$chunk = preg_replace( '/\\/\\*.*?\\*\\//i', '', $chunk);
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$buffer .= $chunk;
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}
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return $buffer;
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}
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}
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class IndexBuilder
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{
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public static function build()
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{
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$html = file_get_contents(__DIR__ . DS . 'index.html');
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self::includeTemplates($html);
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self::minifyScripts($html);
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self::minifyStylesheets($html);
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return $html;
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}
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private static function injectBody(&$html, $text)
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{
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$html = str_replace('</body>', $text . '</body>', $html);
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}
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private static function injectHead(&$html, $text)
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{
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$html = str_replace('</head>', $text . '</head>', $html);
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}
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private static function minifyScripts(&$html)
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{
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$scriptsToMinify = [];
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$html = preg_replace_callback(
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'/<script[^>]*src="([^"]+)"[^>]*><\/script>/',
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function($matches) use (&$scriptsToMinify)
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{
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$scriptPath = $matches[1];
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if (substr($scriptPath, 0, 2) == '//' or strpos($scriptPath, 'http') !== false)
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return $matches[0];
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$scriptsToMinify []= __DIR__ . DS . $scriptPath;
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return '';
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}, $html);
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$out = '<script type="text/javascript">';
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foreach ($scriptsToMinify as $scriptPath)
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$out .= Compressor::js(file_get_contents($scriptPath));
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$out .= '</script>';
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self::injectBody($html, $out);
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}
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private static function minifyStylesheets(&$html)
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{
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$html = preg_replace_callback(
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'/<link[^>]*href="([^"]+)"[^>]*>/',
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function($matches) use (&$stylesToMinify)
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{
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$stylePath = $matches[1];
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if (substr($stylePath, 0, 2) == '//' or strpos($stylePath, 'http') !== false)
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return $matches[0];
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if (strpos($matches[0], 'css') === false)
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return $matches[0];
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$stylesToMinify []= __DIR__ . DS . $stylePath;
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return '';
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}, $html);
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$out = '<style type="text/css">';
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foreach ($stylesToMinify as $stylePath)
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$out .= Compressor::css(file_get_contents($stylePath));
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$out .= '</style>';
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self::injectHead($html, $out);
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}
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private static function includeTemplates(&$html)
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{
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$templatesToInclude = [];
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foreach (glob(__DIR__ . DS . 'templates' . DS . '*.tpl') as $templatePath)
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$templatesToInclude []= $templatePath;
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$out = '';
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foreach ($templatesToInclude as $templatePath)
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{
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$out .= '<script type="text/template" id="' . str_replace('.tpl', '-template', basename($templatePath)) . '">';
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$out .= Compressor::html(file_get_contents($templatePath));
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$out .= '</script>';
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}
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self::injectBody($html, $out);
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}
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}
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$compiledPath = __DIR__ . DS . 'index-compiled.html';
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$html = IndexBuilder::build();
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$html = Compressor::html($html);
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file_put_contents($compiledPath, $html);
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