249 lines
4.8 KiB
PHP
249 lines
4.8 KiB
PHP
#!/usr/bin/env php
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<?php
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// Command line utility to compile LESS to STDOUT
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// Leaf Corcoran <leafot@gmail.com>, 2013
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$exe = array_shift($argv); // remove filename
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$HELP = <<<EOT
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Usage: $exe [options] input-file [output-file]
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Options include:
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-h, --help Show this message
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-v Print the version
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-f=format Set the output format, includes "default", "compressed"
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-c Keep /* */ comments in output
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-r Read from STDIN instead of input-file
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-w Watch input-file, and compile to output-file if it is changed
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-T Dump formatted parse tree
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-X Dump raw parse tree
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EOT;
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$opts = getopt('hvrwncXTf:', array('help'));
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while (count($argv) > 0 && preg_match('/^-([-hvrwncXT]$|[f]=)/', $argv[0])) {
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array_shift($argv);
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}
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function has() {
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global $opts;
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foreach (func_get_args() as $arg) {
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if (isset($opts[$arg])) return true;
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}
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return false;
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}
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if (has("h", "help")) {
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exit($HELP);
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}
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error_reporting(E_ALL);
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$path = realpath(dirname(__FILE__)).'/';
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require $path."lessc.inc.php";
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$VERSION = lessc::$VERSION;
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$fa = "Fatal Error: ";
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function err($msg) {
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fwrite(STDERR, $msg."\n");
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}
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if (php_sapi_name() != "cli") {
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err($fa.$argv[0]." must be run in the command line.");
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exit(1);
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}
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function make_less($fname = null) {
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global $opts;
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$l = new lessc($fname);
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if (has("f")) {
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$format = $opts["f"];
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if ($format != "default") $l->setFormatter($format);
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}
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if (has("c")) {
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$l->setPreserveComments(true);
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}
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return $l;
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}
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function process($data, $import = null) {
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global $fa;
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$l = make_less();
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if ($import) $l->importDir = $import;
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try {
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echo $l->parse($data);
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exit(0);
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} catch (exception $ex) {
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err($fa."\n".str_repeat('=', 20)."\n".
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$ex->getMessage());
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exit(1);
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}
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}
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if (has("v")) {
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exit($VERSION."\n");
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}
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if (has("r")) {
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if (!empty($argv)) {
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$data = $argv[0];
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} else {
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$data = "";
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while (!feof(STDIN)) {
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$data .= fread(STDIN, 8192);
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}
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}
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exit(process($data));
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}
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if (has("w")) {
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// need two files
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if (!is_file($in = array_shift($argv)) ||
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null == $out = array_shift($argv))
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{
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err($fa.$exe." -w infile outfile");
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exit(1);
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}
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echo "Watching ".$in.
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(has("n") ? ' with notifications' : '').
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", press Ctrl + c to exit.\n";
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$cache = $in;
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$last_action = 0;
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while (true) {
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clearstatcache();
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// check if anything has changed since last fail
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$updated = false;
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if (is_array($cache)) {
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foreach ($cache['files'] as $fname=>$_) {
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if (filemtime($fname) > $last_action) {
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$updated = true;
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break;
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}
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}
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} else $updated = true;
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// try to compile it
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if ($updated) {
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$last_action = time();
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try {
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$cache = lessc::cexecute($cache);
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echo "Writing updated file: ".$out."\n";
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if (!file_put_contents($out, $cache['compiled'])) {
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err($fa."Could not write to file ".$out);
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exit(1);
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}
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} catch (exception $ex) {
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echo "\nFatal Error:\n".str_repeat('=', 20)."\n".
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$ex->getMessage()."\n\n";
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if (has("n")) {
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`notify-send -u critical "compile failed" "{$ex->getMessage()}"`;
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}
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}
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}
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sleep(1);
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}
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exit(0);
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}
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if (!$fname = array_shift($argv)) {
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echo $HELP;
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exit(1);
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}
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function dumpValue($node, $depth = 0) {
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if (is_object($node)) {
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$indent = str_repeat(" ", $depth);
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$out = array();
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foreach ($node->props as $prop) {
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$out[] = $indent . dumpValue($prop, $depth + 1);
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}
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$out = implode("\n", $out);
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if (!empty($node->tags)) {
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$out = "+ ".implode(", ", $node->tags)."\n".$out;
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}
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return $out;
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} elseif (is_array($node)) {
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if (empty($node)) return "[]";
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$type = $node[0];
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if ($type == "block")
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return dumpValue($node[1], $depth);
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$out = array();
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foreach ($node as $value) {
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$out[] = dumpValue($value, $depth);
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}
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return "{ ".implode(", ", $out)." }";
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} else {
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if (is_string($node) && preg_match("/[\s,]/", $node)) {
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return '"'.$node.'"';
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}
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return $node; // normal value
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}
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}
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function stripValue($o, $toStrip) {
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if (is_array($o) || is_object($o)) {
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$isObject = is_object($o);
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$o = (array)$o;
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foreach ($toStrip as $removeKey) {
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if (!empty($o[$removeKey])) {
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$o[$removeKey] = "*stripped*";
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}
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}
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foreach ($o as $k => $v) {
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$o[$k] = stripValue($v, $toStrip);
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}
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if ($isObject) {
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$o = (object)$o;
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}
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}
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return $o;
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}
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function dumpWithoutParent($o, $alsoStrip=array()) {
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$toStrip = array_merge(array("parent"), $alsoStrip);
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print_r(stripValue($o, $toStrip));
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}
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try {
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$less = make_less($fname);
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if (has("T", "X")) {
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$parser = new lessc_parser($less, $fname);
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$tree = $parser->parse(file_get_contents($fname));
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if (has("X"))
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$out = print_r($tree, 1);
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else
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$out = dumpValue($tree)."\n";
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} else {
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$out = $less->parse();
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}
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if (!$fout = array_shift($argv)) {
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echo $out;
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} else {
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file_put_contents($fout, $out);
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}
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} catch (\Exception $ex) {
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err($fa.$ex->getMessage());
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exit(1);
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}
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