Function gitignoreToGlobPattern

build-system/tasks/clean.js:19–28

* Rewrite glob patterns according to .gitignore syntax relative to cwd. * https://git-scm.com/docs/gitignore#_pattern_format * @param {string} pattern In .gitignore format * @return {string} Pattern in standard glob format

(pattern)

 * @return {string} Pattern in standard glob format
 */
function gitignoreToGlobPattern(pattern) {
  // If there is a separator at the beginning or middle (or both) of the
  // pattern, then the pattern is relative to the directory level of the
  // particular .gitignore file itself.
  if (pattern.startsWith('/')) {
    return pattern.substr(1);
  }
  // Otherwise the pattern may also match at any level below the .gitignore level.
  return `**/${pattern}`;
}

/**
 * @return {Promise<string[]>}