install method
Implementation
Future<void> install(String projectPath, List<String> packages) async {
if (packages.isEmpty) return;
final baseDir = projectPath.endsWith('/')
? projectPath.substring(0, projectPath.length - 1)
: projectPath;
final result = await Process.run(
'flutter',
['pub', 'add', ...packages],
workingDirectory: baseDir,
);
if (result.exitCode != 0) {
throw ProcessException(
'flutter',
['pub', 'add', ...packages],
result.stderr as String,
result.exitCode,
);
}
}