guessPubCacheDir function
Implementation
String? guessPubCacheDir() {
var pubCache = Platform.environment['PUB_CACHE'];
if (pubCache != null && Directory(pubCache).existsSync()) return pubCache;
if (Platform.isWindows) {
final appData = Platform.environment['APPDATA'];
if (appData != null) {
pubCache = path.join(appData, 'Pub', 'Cache');
if (Directory(pubCache).existsSync()) return pubCache;
}
final localAppData = Platform.environment['LOCALAPPDATA'];
if (localAppData != null) {
pubCache = path.join(localAppData, 'Pub', 'Cache');
if (Directory(pubCache).existsSync()) return pubCache;
}
}
final homeDir = Platform.environment['HOME'] ?? Platform.environment['USERPROFILE'];
if (homeDir != null) {
return path.join(homeDir, '.pub-cache');
}
return null;
}