signal-desktop/ts/scripts/gen-nsis-script.ts
2023-05-10 12:31:40 -07:00

112 lines
2.8 KiB
TypeScript

// Copyright 2023 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { createIntl } from '@formatjs/intl';
import path from 'path';
import fs from 'fs';
// Note: if this warning appears and build fails:
//
// "warning 6040: LangString "MUI_TEXT_INSTALLING_TITLE" is not set in language..."
//
// Make sure to sync up the values in `util/nsis` with upstream
// `app-builder-lib`.
import { REQUIRED_LANGUAGES, LCID } from '../util/nsis';
const STRING_VARS = new Map([
[
'signalMinWinVersionErr',
{
id: 'icu:UnsupportedOSErrorToast',
replacements: {
OS: 'Windows',
},
},
],
[
'signalMinAppVersionErr',
{
id: 'icu:NSIS__semver-downgrade',
replacements: {},
},
],
]);
console.log('Generating updates NSIS script');
console.log();
const USED = new Set<number>();
const ROOT_DIR = path.join(__dirname, '..', '..');
const LOCALES_DIR = path.join(ROOT_DIR, '_locales');
const fallbackMessages = JSON.parse(
fs.readFileSync(path.join(LOCALES_DIR, 'en', 'messages.json')).toString()
);
const nsisStrings = new Array<string>();
for (const lang of REQUIRED_LANGUAGES) {
const langId = LCID[lang] ?? LCID.en_US;
if (USED.has(langId)) {
continue;
}
USED.add(langId);
// We use "-" in folder names
const folder = lang.replace(/_/g, '-');
const fallbacks = [folder, folder.replace(/-.*/g, ''), 'en'];
if (lang === 'zh_TW') {
fallbacks.unshift('zh-Hant');
}
let json: Buffer | undefined;
for (const f of fallbacks) {
try {
json = fs.readFileSync(path.join(LOCALES_DIR, f, 'messages.json'));
if (f !== folder) {
console.error(`Fallback from ${folder} to ${f}`);
}
break;
} catch {
// no-op
}
}
if (!json) {
throw new Error(`No messages for ${folder}`);
}
const messages = JSON.parse(json.toString());
nsisStrings.push(`# ${lang}`);
for (const [varName, { id, replacements }] of STRING_VARS) {
let message = messages[id];
if (!message) {
console.error(`No string for ${id} in ${folder}, using english version`);
message = fallbackMessages[id];
}
const intl = createIntl({
locale: folder,
messages: {
message: message.messageformat,
},
});
const text = intl.formatMessage({ id: 'message' }, replacements);
nsisStrings.push(`LangString ${varName} ${langId} ${JSON.stringify(text)}`);
}
}
// See: https://www.electron.build/configuration/nsis.html#custom-nsis-script
// for description of what `build/installer.nsh` does.
fs.writeFileSync(
path.join(ROOT_DIR, 'build', 'SignalStrings.nsh'),
[
'# Copyright 2023 Signal Messenger, LLC',
'# SPDX-License-Identifier: AGPL-3.0-only',
'#',
'# DO NOT EDIT. This is a generated file.',
'',
...nsisStrings,
'',
].join('\n')
);