usingGit method
Implementation
bool? usingGit(String packageRoot) {
if (_usingGit == null) {
// search up the tree for the .git directory
var current = packageRoot;
var found = false;
while (current != rootPath && found == false) {
found = Directory(join(current, '.git')).existsSync();
current = dirname(current);
}
_usingGit = found;
}
return _usingGit;
}