lemmur-app-android/scripts/migrate_lemmy_l10n.dart

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/// migrates chosen strings from lemmy-translations into flutter's i18n solution
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/// uses prettier to format the files
import 'dart:convert';
import 'dart:io';
import 'common.dart';
/// Map<key, renamedKey>, if `renamedKey` is null then no rename is performed
const toExtract = {
'settings': null,
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'password': null,
'email_or_username': null,
'posts': null,
'comments': null,
'modlog': null,
'community': null,
'url': null,
'title': null,
'body': null,
'nsfw': null,
'post': null,
'save': null,
'send_message': null,
'subscribed': null,
'local': null,
'all': null,
'replies': null,
'mentions': null,
'from': null,
'to': null,
'deleted': 'deleted_by_creator',
'more': null,
'mark_as_read': null,
'mark_as_unread': null,
'reply': null,
'edit': null,
'delete': null,
'restore': null,
'yes': null,
'no': null,
'avatar': null,
'banner': null,
'display_name': null,
'bio': null,
'email': null,
'matrix_user_id': 'matrix_user',
'sort_type': null,
'type': null,
'show_nsfw': null,
'send_notifications_to_email': null,
'delete_account': null,
'saved': null,
'communities': null,
'users': null,
'theme': null,
'language': null,
'hot': null,
'new': null,
'old': null,
'top': null,
'chat': null,
'admin': null,
'by': null,
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'not_a_mod_or_admin': null,
'not_an_admin': null,
'couldnt_find_post': null,
'not_logged_in': null,
'site_ban': null,
'community_ban': null,
'downvotes_disabled': null,
'invalid_url': null,
'locked': null,
'couldnt_create_comment': null,
'couldnt_like_comment': null,
'couldnt_update_comment': null,
'no_comment_edit_allowed': null,
'couldnt_save_comment': null,
'couldnt_get_comments': null,
'report_reason_required': null,
'report_too_long': null,
'couldnt_create_report': null,
'couldnt_resolve_report': null,
'invalid_post_title': null,
'couldnt_create_post': null,
'couldnt_like_post': null,
'couldnt_find_community': null,
'couldnt_get_posts': null,
'no_post_edit_allowed': null,
'couldnt_save_post': null,
'site_already_exists': null,
'couldnt_update_site': null,
'invalid_community_name': null,
'community_already_exists': null,
'community_moderator_already_exists': null,
'community_follower_already_exists': null,
'not_a_moderator': null,
'couldnt_update_community': null,
'no_community_edit_allowed': null,
'system_err_login': null,
'community_user_already_banned': null,
'couldnt_find_that_username_or_email': null,
'password_incorrect': null,
'registration_closed': null,
'invalid_password': null,
'passwords_dont_match': null,
'captcha_incorrect': null,
'invalid_username': null,
'bio_length_overflow': null,
'couldnt_update_user': null,
'couldnt_update_private_message': null,
'couldnt_update_post': null,
'couldnt_create_private_message': null,
'no_private_message_edit_allowed': null,
};
const repoName = 'lemmy-translations';
const baseLanguage = 'en';
const flutterIntlPrefix = 'intl_';
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Future<void> main(List<String> args) async {
final force = args.contains('-f') || args.contains('--force');
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final repoCleanup = await cloneLemmyTranslations();
final lemmyTranslations = await loadLemmyStrings();
final lemmurTranslations = await loadLemmurStrings();
portStrings(lemmyTranslations, lemmurTranslations, force: force);
await save(lemmurTranslations);
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await repoCleanup();
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await Process.run(
'npx', ['prettier', 'lib/l10n/*.arb', '--parser', 'json', '--write']);
}
/// 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] = {};
lemmurTranslations[language]['@@locale'] = language;
}
}
for (final extract in toExtract.entries) {
final key = extract.key;
final renamedKey = extract.value ?? key;
if (!lemmyTranslations[baseLanguage].containsKey(key)) {
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printError('"$key" does not exist in $repoName');
}
if (lemmurTranslations[baseLanguage].containsKey(key) && !force) {
confirm('"$key" already exists in lemmur, overwrite?');
}
for (final trans in lemmyTranslations.entries) {
final language = trans.key;
final strings = trans.value;
lemmurTranslations[language][renamedKey] = strings[key];
}
lemmurTranslations[baseLanguage]['@$renamedKey'] = {};
}
}
Future<void> save(Map<String, Map<String, dynamic>> lemmurTranslations) async {
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// remove null fields
// Vec<(language, key)>
final toRemove = <List<String>>[];
for (final translations in lemmurTranslations.entries) {
final language = translations.key;
for (final strings in translations.value.entries) {
if (strings.value == null) {
toRemove.add([language, strings.key]);
}
}
}
for (final rem in toRemove) {
lemmurTranslations[rem[0]].remove(rem[1]);
}
for (final language in lemmurTranslations.keys) {
await File('lib/l10n/$flutterIntlPrefix$language.arb')
.writeAsString(jsonEncode(lemmurTranslations[language]));
}
}