tasks/task_helper.js
function(filepath) {
        return grunt.file.exists(filepath) ?
          Math.floor(fs.statSync(filepath).mtime.getTime() / 1000) : 0;
        // mtime before epochtime isn't supported.
      }
function(filepath) {
        return grunt.file.exists(filepath) ?
          Math.floor(fs.statSync(filepath).mtime.getTime() / 1000) : 0;
        // mtime before epochtime isn't supported.
      }
function ( filepath ) { return grunt . file . exists ( filepath ) ? Math . floor ( fs . statSync ( filepath ) . mtime . getTime ( ) / 1000 ) : 0 ; // mtime before epochtime isn't supported. }
retrieve mtime as seconds.
retrieve mtime as seconds .