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main.dart
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import 'dart:io';
import 'package:args/args.dart';
import 'package:flutter_launcher_icons/abs/icon_generator.dart';
import 'package:flutter_launcher_icons/android.dart' as android_launcher_icons;
import 'package:flutter_launcher_icons/constants.dart' as constants;
import 'package:flutter_launcher_icons/constants.dart';
import 'package:flutter_launcher_icons/custom_exceptions.dart';
import 'package:flutter_launcher_icons/flutter_launcher_icons_config.dart';
import 'package:flutter_launcher_icons/ios.dart' as ios_launcher_icons;
import 'package:flutter_launcher_icons/logger.dart';
import 'package:flutter_launcher_icons/pubspec_parser.dart';
import 'package:flutter_launcher_icons/web/web_icon_generator.dart';
import 'package:flutter_launcher_icons/windows/windows_icon_generator.dart';
import 'package:path/path.dart' as path;
import 'package:yaml/yaml.dart';
const String fileOption = 'file';
const String helpFlag = 'help';
const String verboseFlag = 'verbose';
const String prefixOption = 'prefix';
const String defaultConfigFile = 'flutter_launcher_icons.yaml';
const String flavorConfigFilePattern = r'^flutter_launcher_icons-(.*).yaml$';
/// todo: remove this as it is moved to utils.dart
String flavorConfigFile(String flavor) => 'flutter_launcher_icons-$flavor.yaml';
List<String> getFlavors() {
final List<String> flavors = [];
for (var item in Directory('.').listSync()) {
if (item is File) {
final name = path.basename(item.path);
final match = RegExp(flavorConfigFilePattern).firstMatch(name);
if (match != null) {
flavors.add(match.group(1)!);
}
}
}
return flavors;
}
Future<void> createIconsFromArguments(List<String> arguments) async {
final ArgParser parser = ArgParser(allowTrailingOptions: true);
parser
..addFlag(helpFlag, abbr: 'h', help: 'Usage help', negatable: false)
// Make default null to differentiate when it is explicitly set
..addOption(fileOption, abbr: 'f', help: 'Path to config file', defaultsTo: defaultConfigFile)
..addFlag(verboseFlag, abbr: 'v', help: 'Verbose output', defaultsTo: false)
..addOption(
prefixOption,
abbr: 'p',
help: 'Generates config in the given path. Only Supports web platform',
defaultsTo: '.',
);
final ArgResults argResults = parser.parse(arguments);
// creating logger based on -v flag
final logger = FLILogger(argResults[verboseFlag]);
logger.verbose('Received args ${argResults.arguments}');
if (argResults[helpFlag]) {
stdout.writeln('Generates icons for iOS and Android');
stdout.writeln(parser.usage);
exit(0);
}
// Flavors management
final flavors = getFlavors();
final hasFlavors = flavors.isNotEmpty;
// Load the config file
final Map<String, dynamic>? yamlConfig = loadConfigFileFromArgResults(argResults, verbose: true);
final String prefixPath = argResults[prefixOption];
// Load configs from given file(defaults to ./flutter_launcher_icons.yaml) or from ./pubspec.yaml
final flutterLauncherIconsConfigs =
FlutterLauncherIconsConfig.loadConfigFromPath(argResults[fileOption], prefixPath) ??
FlutterLauncherIconsConfig.loadConfigFromPubSpec(prefixPath);
if (yamlConfig == null || flutterLauncherIconsConfigs == null) {
throw NoConfigFoundException(
'No configuration found in $defaultConfigFile or in ${constants.pubspecFilePath}. '
'In case file exists in different directory use --file option',
);
}
// Create icons
if (!hasFlavors) {
try {
await createIconsFromConfig(yamlConfig, flutterLauncherIconsConfigs, logger, prefixPath);
print('\n✓ Successfully generated launcher icons');
} catch (e) {
stderr.writeln('\n✕ Could not generate launcher icons');
stderr.writeln(e);
exit(2);
}
} else {
try {
for (String flavor in flavors) {
print('\nFlavor: $flavor');
final Map<String, dynamic> yamlConfig = loadConfigFile(flavorConfigFile(flavor), flavorConfigFile(flavor));
await createIconsFromConfig(yamlConfig, flutterLauncherIconsConfigs, logger, prefixPath, flavor);
}
print('\n✓ Successfully generated launcher icons for flavors');
} catch (e) {
stderr.writeln('\n✕ Could not generate launcher icons for flavors');
stderr.writeln(e);
exit(2);
}
}
}
Future<void> createIconsFromConfig(
Map<String, dynamic> config,
FlutterLauncherIconsConfig flutterConfigs,
FLILogger logger,
String prefixPath, [
String? flavor,
]) async {
if (!isImagePathInConfig(config)) {
throw const InvalidConfigException(errorMissingImagePath);
}
if (!hasPlatformConfig(config)) {
throw const InvalidConfigException(errorMissingPlatform);
}
if (isNeedingNewAndroidIcon(config) || hasAndroidAdaptiveConfig(config)) {
final int minSdk = android_launcher_icons.minSdk();
if (minSdk == 0) {
throw const InvalidConfigException(errorMissingMinSdk);
}
if (minSdk < 26 && hasAndroidAdaptiveConfig(config) && !hasAndroidConfig(config)) {
throw const InvalidConfigException(errorMissingRegularAndroid);
}
}
if (isNeedingNewAndroidIcon(config)) {
android_launcher_icons.createDefaultIcons(config, flavor);
}
if (hasAndroidAdaptiveConfig(config)) {
android_launcher_icons.createAdaptiveIcons(config, flavor);
}
if (isNeedingNewIOSIcon(config)) {
ios_launcher_icons.createIcons(config, flavor);
}
// Generates Icons for given platform
generateIconsFor(
config: flutterConfigs,
logger: logger,
prefixPath: prefixPath,
flavor: flavor,
platforms: (context) => [
WebIconGenerator(context),
WindowsIconGenerator(context),
// todo: add other platforms
],
);
}
Map<String, dynamic>? loadConfigFileFromArgResults(ArgResults argResults, {bool verbose = false}) {
final String? configFile = argResults[fileOption];
final String? fileOptionResult = argResults[fileOption];
// if icon is given, try to load icon
if (configFile != null && configFile != defaultConfigFile) {
try {
return loadConfigFile(configFile, fileOptionResult);
} catch (e) {
if (verbose) {
stderr.writeln(e);
}
return null;
}
}
// If none set try flutter_launcher_icons.yaml first then pubspec.yaml
// for compatibility
try {
return loadConfigFile(defaultConfigFile, fileOptionResult);
} catch (e) {
// Try pubspec.yaml for compatibility
if (configFile == null) {
try {
return loadConfigFile('pubspec.yaml', fileOptionResult);
} catch (_) {}
}
// if nothing got returned, print error
if (verbose) {
stderr.writeln(e);
}
}
return null;
}
Map<String, dynamic> loadConfigFile(String path, String? fileOptionResult) {
final yamlMap = PubspecParser.fromPathToMap(path);
if (yamlMap['flutter_icons'] is! Map) {
stderr.writeln(NoConfigFoundException('Check that your config file '
'`${fileOptionResult ?? defaultConfigFile}`'
' has a `flutter_icons` section'));
exit(1);
}
// yamlMap has the type YamlMap, which has several unwanted sideeffects
final Map<String, dynamic> config = <String, dynamic>{};
for (MapEntry<dynamic, dynamic> entry in yamlMap['flutter_icons'].entries) {
config[entry.key] = entry.value;
}
return config;
}
bool isImagePathInConfig(Map<String, dynamic> flutterIconsConfig) {
return flutterIconsConfig.containsKey('image_path') ||
(flutterIconsConfig.containsKey('image_path_android') && flutterIconsConfig.containsKey('image_path_ios')) ||
flutterIconsConfig.containsKey('web');
}
bool hasPlatformConfig(Map<String, dynamic> flutterIconsConfig) {
return hasAndroidConfig(flutterIconsConfig) || hasIOSConfig(flutterIconsConfig) || hasWebConfig(flutterIconsConfig);
}
bool hasAndroidConfig(Map<String, dynamic> flutterLauncherIcons) {
return flutterLauncherIcons.containsKey('android');
}
bool isNeedingNewAndroidIcon(Map<String, dynamic> flutterLauncherIconsConfig) {
return hasAndroidConfig(flutterLauncherIconsConfig) && flutterLauncherIconsConfig['android'] != false;
}
bool hasAndroidAdaptiveConfig(Map<String, dynamic> flutterLauncherIconsConfig) {
return isNeedingNewAndroidIcon(flutterLauncherIconsConfig) &&
flutterLauncherIconsConfig.containsKey('adaptive_icon_background') &&
flutterLauncherIconsConfig.containsKey('adaptive_icon_foreground');
}
bool hasIOSConfig(Map<String, dynamic> flutterLauncherIconsConfig) {
return flutterLauncherIconsConfig.containsKey('ios');
}
bool isNeedingNewIOSIcon(Map<String, dynamic> flutterLauncherIconsConfig) {
return hasIOSConfig(flutterLauncherIconsConfig) && flutterLauncherIconsConfig['ios'] != false;
}
/// Checks if the [flutterLauncherIconsConfig] contains web configs
bool hasWebConfig(Map<String, dynamic> flutterLauncherIconsConfig) {
return flutterLauncherIconsConfig.containsKey('web');
}
/// Checks if we should generate icons for web platform
bool isNeddingNewWebIcons(Map<String, dynamic> flutterLauncherIconsConfig) {
return hasWebConfig(flutterLauncherIconsConfig) && flutterLauncherIconsConfig['web'] != false;
}