How to scan a project for "@todo" source code comments

Question

Is there any way to scan a codebase for any TODO's and generate a list that can be displayed on a standard web page.

E.g.

@todo Deprecated function remove......... (functions.php [Line 12])

This needs to work on a local WAMP server.

Answer 1

On a Windows platform or if you wanted to use PHP itself, you could use...

function getTodos($path) {
   $todos = array();
   $items = glob(rtrim($path, '/') . '/*');

   foreach($items as $item) {

       if (is_file($item) AND pathinfo($item, PATHINFO_EXTENSION) == 'php') {
           $fileContents = file_get_contents($item);

           $tokens = token_get_all($fileContents);

           foreach($tokens as $type = $token) {
               if (($type == 'T_COMMENT' OR $type == 'T_ML_COMMENT')
                   AND preg_match_all('/^\s*(?P<todo>@todo.*?)\z/m', $token, $matches) {
                  $todos = array_merge($todos, $matches['todo']);
               }
           }

       } else if (is_dir($item)) {
           $todos = array_merge$($todos, getTodos($item));
           continue;
       }       

   }

   return $lines;
}

I have not tested it, but it should work in theory. :)

On *nix, you could use grep...

$ grep -r \b@todo\b ./

It's not perfect (it will find it within strings) but it should be good enough. :)