newSinglePackageConfigJsonFile method
Writes a new .dart_tool/package_config.json file for a package rooted at
packagePath, named name.
Implementation
void newSinglePackageConfigJsonFile({
required String packagePath,
required String name,
}) {
var builder = PackageConfigFileBuilder()
..add(name: name, rootPath: packagePath);
newPackageConfigJsonFileFromBuilder(packagePath, builder);
}