lemmur-app-android/scripts/migrate_lemmy_l10n.dart

375 lines
10 KiB
Dart

/// migrates chosen strings from lemmy-translations into flutter's i18n solution
/// uses prettier to format the files
import 'dart:convert';
import 'dart:io';
import 'common.dart';
import 'gen_l10n_from_string.dart' as gen;
// config for migration of a single key
// ignore: camel_case_types
class _ {
final String key;
final String? rename;
/// make all letters except the first one lower case
final bool decapitalize;
final bool toLowerCase;
/// arb format for the placeholder
final String? format;
/// arb type for the placeholder
final String? type;
const _(
this.key, {
this.rename,
this.decapitalize = false,
this.toLowerCase = false,
this.format,
this.type,
});
String get renamedKey => rename ?? key;
// will transform a value of a translation of the base language
String transform(String input) {
if (toLowerCase) return input.toLowerCase();
if (decapitalize) return '${input[0]}${input.substring(1).toLowerCase()}';
return input;
}
}
const toMigrate = <_>[
_('settings'),
_('password'),
_('email_or_username'),
_('posts'),
_('comments'),
_('modlog'),
_('community'),
_('url'),
_('title'),
_('body'),
_('nsfw'),
_('post'),
_('save'),
_('subscribed'),
_('local'),
_('all'),
_('replies'),
_('mentions'),
_('from'),
_('to'),
_('deleted', rename: 'deleted_by_creator'),
_('more'),
_('mark_as_read'),
_('mark_as_unread'),
_('reply'),
_('edit'),
_('delete'),
_('restore'),
_('yes'),
_('no'),
_('avatar'),
_('banner'),
_('display_name'),
_('bio'),
_('email'),
_('matrix_user_id', rename: 'matrix_user'),
_('sort_type'),
_('type'),
_('show_nsfw'),
_('send_notifications_to_email'),
_('delete_account', decapitalize: true),
_('saved'),
_('communities'),
_('users'),
_('theme'),
_('language'),
_('hot'),
_('new', rename: 'new_'),
_('old'),
_('top'),
_('chat'),
_('admin'),
_('by'),
_('not_a_mod_or_admin'),
_('not_an_admin'),
_('couldnt_find_post'),
_('not_logged_in'),
_('site_ban'),
_('community_ban'),
_('downvotes_disabled'),
_('invalid_url'),
_('locked'),
_('couldnt_create_comment'),
_('couldnt_like_comment'),
_('couldnt_update_comment'),
_('no_comment_edit_allowed'),
_('couldnt_save_comment'),
_('couldnt_get_comments'),
_('report_reason_required'),
_('report_too_long'),
_('couldnt_create_report'),
_('couldnt_resolve_report'),
_('invalid_post_title'),
_('couldnt_create_post'),
_('couldnt_like_post'),
_('couldnt_find_community'),
_('couldnt_get_posts'),
_('no_post_edit_allowed'),
_('couldnt_save_post'),
_('site_already_exists'),
_('couldnt_update_site'),
_('invalid_community_name'),
_('community_already_exists'),
_('community_moderator_already_exists'),
_('community_follower_already_exists'),
_('not_a_moderator'),
_('couldnt_update_community'),
_('no_community_edit_allowed'),
_('system_err_login'),
_('community_user_already_banned'),
_('couldnt_find_that_username_or_email'),
_('password_incorrect'),
_('registration_closed'),
_('invalid_password'),
_('passwords_dont_match'),
_('captcha_incorrect'),
_('invalid_username'),
_('bio_length_overflow'),
_('couldnt_update_user'),
_('couldnt_update_private_message'),
_('couldnt_update_post'),
_('couldnt_create_private_message'),
_('no_private_message_edit_allowed'),
_('post_title_too_long'),
_('email_already_exists'),
_('user_already_exists'),
_('number_online', rename: 'number_of_users_online'),
_('number_of_comments', type: 'int', format: 'compact', toLowerCase: true),
_('number_of_posts', type: 'int', format: 'compact', toLowerCase: true),
_('number_of_subscribers'),
_('number_of_users'),
_('unsubscribe', toLowerCase: true),
_('subscribe', toLowerCase: true),
_('messages'),
_('banned_users', decapitalize: true),
_('delete_account_confirm'),
_('new_password', decapitalize: true),
_('verify_password', decapitalize: true),
_('old_password', decapitalize: true),
_('show_avatars', decapitalize: true),
_('search', toLowerCase: true),
_('send_message', decapitalize: true),
_('top_day'),
_('top_week'),
_('top_month'),
_('top_year'),
_('top_all'),
_('most_comments'),
_('new_comments'),
_('active'),
];
const repoName = 'lemmy-translations';
const baseLanguage = 'en';
const flutterIntlPrefix = 'intl_';
Future<void> main(List<String> args) async {
final force = args.contains('-f') || args.contains('--force');
checkDuplicateKeys();
final repoCleanup = await cloneLemmyTranslations();
final lemmyTranslations = await loadLemmyStrings();
final lemmurTranslations = await loadLemmurStrings();
portStrings(lemmyTranslations, lemmurTranslations, force: force);
await save(lemmurTranslations);
await repoCleanup();
await Process.run('npx', [
'prettier',
'lib/l10n/*.arb',
'--parser',
'json',
'--write',
'--print-width',
'1',
]);
await gen.main(args);
}
/// check if `toMigrate` has duplicate keys
void checkDuplicateKeys() {
final seen = <String>{};
for (final renamedKey in toMigrate.map((e) => e.renamedKey)) {
if (seen.contains(renamedKey)) {
printError(
'The renamedKey "$renamedKey" appears more than once in "toMigrate"');
}
seen.add(renamedKey);
}
}
/// returns a cleanup function
Future<Future<void> Function()> cloneLemmyTranslations() async {
await Process.run('git', ['clone', 'https://github.com/LemmyNet/$repoName']);
return () => Directory(repoName).delete(recursive: true);
}
/// Map<languageTag, Map<stringKey, stringValue>>
Future<Map<String, Map<String, String>>> loadLemmyStrings() async {
final translationsDir = Directory('$repoName/translations');
final translations = <String, Map<String, String>>{};
await for (final file in translationsDir.list()) {
final transFile = File.fromUri(file.uri);
final trans = Map<String, String>.from(
jsonDecode(await transFile.readAsString()) as Map<String, dynamic>,
);
final localeName = file.uri.pathSegments.last.split('.json').first;
translations[localeName] = trans;
}
return translations;
}
/// Map<languageTag, Map<stringKey, stringValue>> + some metadata
Future<Map<String, Map<String, dynamic>>> loadLemmurStrings() async {
final translationsDir = Directory('lib/l10n');
final translations = <String, Map<String, dynamic>>{};
await for (final file in translationsDir.list()) {
if (!file.path.endsWith('.arb')) continue;
final transFile = File.fromUri(file.uri);
final trans =
jsonDecode(await transFile.readAsString()) as Map<String, dynamic>;
final localeName = file.uri.pathSegments.last
.split('.arb')
.first
.split(flutterIntlPrefix)
.last;
translations[localeName] = trans;
}
return translations;
}
/// will port them into `lemmurTranslations`
void portStrings(
Map<String, Map<String, String>> lemmyTranslations,
Map<String, Map<String, dynamic>> lemmurTranslations, {
bool force = false,
}) {
// port all languages
for (final language in lemmyTranslations.keys) {
if (!lemmurTranslations.containsKey(language)) {
lemmurTranslations[language] = {'@@locale': language};
}
}
final baseTranslations = lemmyTranslations[baseLanguage]!;
for (final migrate in toMigrate) {
if (!baseTranslations.containsKey(migrate.key)) {
printError('"${migrate.key}" does not exist in $repoName');
}
if (lemmurTranslations[baseLanguage]!.containsKey(migrate.renamedKey) &&
!force) {
confirm('"${migrate.key}" already exists in lemmur, overwrite?');
}
final variableName = RegExp(r'{{([\w_]+)}|')
.firstMatch(baseTranslations[migrate.key]!)
?.group(1);
final metadata = <String, dynamic>{
if (variableName != null)
'placeholders': {
variableName: {
if (migrate.type != null) 'type': migrate.type,
if (migrate.format != null) 'format': migrate.format,
},
},
};
// ignore: omit_local_variable_types
String? Function(Map<String, String> translations) transformer =
(translations) => translations[migrate.key];
// check if it has a plural form
if (baseTranslations.containsKey('${migrate.key}_plural')) {
transformer = (translations) {
if (translations[migrate.key] == null) return null;
final fixedVariables = translations[migrate.key]!
.replaceAll('{{$variableName}}', '{$variableName}');
final pluralForm = () {
if (translations.containsKey('${migrate.key}_plural')) {
return translations['${migrate.key}_plural']!
.replaceAll('{{$variableName}}', '{$variableName}');
}
return null;
}();
if (pluralForm == null) {
return '{$variableName,plural, other{$fixedVariables}}';
}
return '{$variableName,plural, =1{$fixedVariables} other{$pluralForm}}';
};
}
for (final trans in lemmyTranslations.entries) {
final language = trans.key;
final strings = trans.value;
lemmurTranslations[language]![migrate.renamedKey] = transformer(strings);
}
final transformed = transformer(baseTranslations);
if (transformed != null) {
lemmurTranslations[baseLanguage]![migrate.renamedKey] =
migrate.transform(transformed);
}
lemmurTranslations[baseLanguage]!['@${migrate.renamedKey}'] = metadata;
}
}
Future<void> save(Map<String, Map<String, dynamic>> lemmurTranslations) async {
// remove null fields
// Vec<(language, key)>
final toRemove = <List<String>>[];
for (final translations in lemmurTranslations.entries) {
final language = translations.key;
for (final strings in translations.value.entries) {
if (strings.value == null) {
toRemove.add([language, strings.key]);
}
}
}
for (final rem in toRemove) {
lemmurTranslations[rem[0]]?.remove(rem[1]);
}
for (final language in lemmurTranslations.keys) {
await File('lib/l10n/$flutterIntlPrefix$language.arb')
.writeAsString(jsonEncode(lemmurTranslations[language]));
}
}