code: function getIncludePath(path, options) {
    var includePath;
    var filePath;
    var views = options.views;
  
    // Abs path
    if (path.charAt(0) == '/') {
      includePath = exports.resolveInclude(path.replace(/^\/*/,''), options.root || '/', true);
    }
    // Relative paths
    else {
      // Look relative to a passed filename first
      if (options.filename) {
        filePath = exports.resolveInclude(path, options.filename);
        if (fs.existsSync(filePath)) {
          includePath = filePath;
        }
      }
      // Then look in any views directories
      if (!includePath) {
        if (Array.isArray(views) && views.some(function (v) {
          filePath = exports.resolveInclude(path, v, true);
          return fs.existsSync(filePath);
        })) {
          includePath = filePath;
        }
      }
      if (!includePath) {
        throw new Error('Could not find the include file "' +
            options.escapeFunction(path) + '"');
      }
    }
    return includePath;
  }
docs: Get the path to the included file by Options
  
  @param  {String}  path    specified path
  @param  {Options} options compilation options
  @return {String}