normalizeAssetKey method
Normalizes an asset path for comparison.
Implementation
String normalizeAssetKey(String assetPath, String projectRoot) {
var relative = p.relative(assetPath, from: projectRoot);
relative = relative.replaceAll('\\', '/');
if (relative.startsWith('./')) {
relative = relative.substring(2);
}
return relative.replaceAll(_variantPattern, '/');
}