Code Coverage |
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Lines |
Functions and Methods |
Classes and Traits |
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| Total | |
71.03% |
76 / 107 |
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33.33% |
3 / 9 |
CRAP | |
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0 / 1 |
| Less_Cache | |
71.03% |
76 / 107 |
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33.33% |
3 / 9 |
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0 / 1 |
| Get | |
74.42% |
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21.84 | |||
| Regen | |
100.00% |
2 / 2 |
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100.00% |
1 / 1 |
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| Cache | |
80.00% |
8 / 10 |
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0.00% |
0 / 1 |
3.07 | |||
| OutputFile | |
40.00% |
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| CompiledName | |
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| SetCacheDir | |
100.00% |
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| CheckCacheDir | |
55.56% |
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| CleanCache | |
66.67% |
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15.48 | |||
| ListFiles | |
60.00% |
3 / 5 |
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2.26 | |||
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Utility for handling the generation and caching of css files |
| 5 | */ |
| 6 | class Less_Cache { |
| 7 | |
| 8 | /** @var string|false Directory less.php can use for storing data */ |
| 9 | public static $cache_dir = false; |
| 10 | |
| 11 | /** @var string Prefix for the storing data */ |
| 12 | public static $prefix = 'lessphp_'; |
| 13 | |
| 14 | /** @var string Prefix for the storing vars */ |
| 15 | public static $prefix_vars = 'lessphpvars_'; |
| 16 | |
| 17 | /** |
| 18 | * @var int Specifies the number of seconds after which data created by less.php will be seen |
| 19 | * as 'garbage' and potentially cleaned up |
| 20 | */ |
| 21 | public static $gc_lifetime = 604800; |
| 22 | |
| 23 | /** |
| 24 | * Save and reuse the results of compiled less files. |
| 25 | * The first call to Get() will generate css and save it. |
| 26 | * Subsequent calls to Get() with the same arguments will return the same css filename |
| 27 | * |
| 28 | * @param array $less_files Array of .less files to compile |
| 29 | * @param array $parser_options Array of compiler options |
| 30 | * @param array $modify_vars Array of variables |
| 31 | * @return string|false Name of the css file |
| 32 | */ |
| 33 | public static function Get( $less_files, $parser_options = [], $modify_vars = [] ) { |
| 34 | // check $cache_dir |
| 35 | if ( isset( $parser_options['cache_dir'] ) ) { |
| 36 | self::$cache_dir = $parser_options['cache_dir']; |
| 37 | } |
| 38 | |
| 39 | if ( empty( self::$cache_dir ) ) { |
| 40 | throw new Exception( 'cache_dir not set' ); |
| 41 | } |
| 42 | |
| 43 | if ( isset( $parser_options['prefix'] ) ) { |
| 44 | self::$prefix = $parser_options['prefix']; |
| 45 | } |
| 46 | |
| 47 | if ( empty( self::$prefix ) ) { |
| 48 | throw new Exception( 'prefix not set' ); |
| 49 | } |
| 50 | |
| 51 | if ( isset( $parser_options['prefix_vars'] ) ) { |
| 52 | self::$prefix_vars = $parser_options['prefix_vars']; |
| 53 | } |
| 54 | |
| 55 | if ( empty( self::$prefix_vars ) ) { |
| 56 | throw new Exception( 'prefix_vars not set' ); |
| 57 | } |
| 58 | |
| 59 | self::CheckCacheDir(); |
| 60 | $less_files = (array)$less_files; |
| 61 | |
| 62 | // create a file for variables |
| 63 | if ( !empty( $modify_vars ) ) { |
| 64 | $lessvars = Less_Parser::serializeVars( $modify_vars ); |
| 65 | $vars_file = self::$cache_dir . self::$prefix_vars . sha1( $lessvars ) . '.less'; |
| 66 | |
| 67 | if ( !file_exists( $vars_file ) ) { |
| 68 | file_put_contents( $vars_file, $lessvars ); |
| 69 | } |
| 70 | |
| 71 | $less_files += [ $vars_file => '/' ]; |
| 72 | } |
| 73 | |
| 74 | // generate name for compiled css file |
| 75 | $hash = md5( json_encode( $less_files ) ); |
| 76 | $list_file = self::$cache_dir . self::$prefix . $hash . '.list'; |
| 77 | |
| 78 | // check cached content |
| 79 | if ( !isset( $parser_options['use_cache'] ) || $parser_options['use_cache'] === true ) { |
| 80 | if ( file_exists( $list_file ) ) { |
| 81 | |
| 82 | self::ListFiles( $list_file, $list, $cached_name ); |
| 83 | $compiled_name = self::CompiledName( $list, $hash ); |
| 84 | |
| 85 | // if $cached_name is the same as the $compiled name, don't regenerate |
| 86 | if ( !$cached_name || $cached_name === $compiled_name ) { |
| 87 | |
| 88 | $output_file = self::OutputFile( $compiled_name, $parser_options ); |
| 89 | |
| 90 | if ( $output_file && file_exists( $output_file ) ) { |
| 91 | @touch( $list_file ); |
| 92 | return basename( $output_file ); // for backwards compatibility, we just return the name of the file |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | $compiled = self::Cache( $less_files, $parser_options ); |
| 99 | if ( !$compiled ) { |
| 100 | return false; |
| 101 | } |
| 102 | |
| 103 | $compiled_name = self::CompiledName( $less_files, $hash ); |
| 104 | $output_file = self::OutputFile( $compiled_name, $parser_options ); |
| 105 | |
| 106 | // save the file list |
| 107 | $list = $less_files; |
| 108 | $list[] = $compiled_name; |
| 109 | $cache = implode( "\n", $list ); |
| 110 | file_put_contents( $list_file, $cache ); |
| 111 | |
| 112 | // save the css |
| 113 | file_put_contents( $output_file, $compiled ); |
| 114 | |
| 115 | // clean up |
| 116 | self::CleanCache(); |
| 117 | |
| 118 | return basename( $output_file ); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Force the compiler to regenerate the cached css file |
| 123 | * |
| 124 | * @param array $less_files Array of .less files to compile |
| 125 | * @param array $parser_options Array of compiler options |
| 126 | * @param array $modify_vars Array of variables |
| 127 | * @return string Name of the css file |
| 128 | */ |
| 129 | public static function Regen( $less_files, $parser_options = [], $modify_vars = [] ) { |
| 130 | $parser_options['use_cache'] = false; |
| 131 | return self::Get( $less_files, $parser_options, $modify_vars ); |
| 132 | } |
| 133 | |
| 134 | public static function Cache( &$less_files, $parser_options = [] ) { |
| 135 | $parser_options['cache_dir'] = self::$cache_dir; |
| 136 | $parser = new Less_Parser( $parser_options ); |
| 137 | |
| 138 | // combine files |
| 139 | foreach ( $less_files as $file_path => $uri_or_less ) { |
| 140 | |
| 141 | // treat as less markup if there are newline characters |
| 142 | if ( strpos( $uri_or_less, "\n" ) !== false ) { |
| 143 | $parser->Parse( $uri_or_less ); |
| 144 | continue; |
| 145 | } |
| 146 | |
| 147 | $parser->ParseFile( $file_path, $uri_or_less ); |
| 148 | } |
| 149 | |