contextRootContaining method

ContextRoot? contextRootContaining(String filePath)

Return the context root containing the file at the given filePath.

Implementation

ContextRoot? contextRootContaining(String filePath) {
  var pathContext = resourceProvider.pathContext;

  /// Return `true` if the given [child] is either the same as or within the
  /// given [parent].
  bool isOrWithin(String parent, String child) {
    return parent == child || pathContext.isWithin(parent, child);
  }

  /// Return `true` if the given context [root] contains the target [file].
  bool ownsFile(ContextRoot root) {
    if (isOrWithin(root.root, filePath)) {
      var excludedPaths = root.exclude;
      for (var excludedPath in excludedPaths) {
        if (isOrWithin(excludedPath, filePath)) {
          return false;
        }
      }
      return true;
    }
    return false;
  }

  for (var root in driverMap.keys) {
    if (ownsFile(root)) {
      return root;
    }
  }
  return null;
}