frontend/build-scripts/gulp/locale-data.js

90 lines
2.5 KiB
JavaScript
Executable File

import { deleteSync } from "del";
import { mkdir, readFile, writeFile } from "fs/promises";
import gulp from "gulp";
import { join, resolve } from "node:path";
import paths from "../paths.cjs";
const formatjsDir = join(paths.polymer_dir, "node_modules", "@formatjs");
const outDir = join(paths.build_dir, "locale-data");
const INTL_POLYFILLS = {
"intl-datetimeformat": "DateTimeFormat",
"intl-displaynames": "DisplayNames",
"intl-listformat": "ListFormat",
"intl-numberformat": "NumberFormat",
"intl-relativetimeformat": "RelativeTimeFormat",
};
const convertToJSON = async (
pkg,
lang,
subDir = "locale-data",
addFunc = "__addLocaleData",
skipMissing = true
) => {
let localeData;
try {
// use "pt" for "pt-BR", because "pt-BR" is unsupported by @formatjs
const language = lang === "pt-BR" ? "pt" : lang;
localeData = await readFile(
join(formatjsDir, pkg, subDir, `${language}.js`),
"utf-8"
);
} catch (e) {
// Ignore if language is missing (i.e. not supported by @formatjs)
if (e.code === "ENOENT" && skipMissing) {
console.warn(`Skipped missing data for language ${lang} from ${pkg}`);
return;
}
throw e;
}
// Convert to JSON
const obj = INTL_POLYFILLS[pkg];
const dataRegex = new RegExp(
`Intl\\.${obj}\\.${addFunc}\\((?<data>.*)\\)`,
"s"
);
localeData = localeData.match(dataRegex)?.groups?.data;
if (!localeData) {
throw Error(`Failed to extract data for language ${lang} from ${pkg}`);
}
// Parse to validate JSON, then stringify to minify
localeData = JSON.stringify(JSON.parse(localeData));
await writeFile(join(outDir, `${pkg}/${lang}.json`), localeData);
};
gulp.task("clean-locale-data", async () => deleteSync([outDir]));
gulp.task("create-locale-data", async () => {
const translationMeta = JSON.parse(
await readFile(
resolve(paths.translations_src, "translationMetadata.json"),
"utf-8"
)
);
const conversions = [];
for (const pkg of Object.keys(INTL_POLYFILLS)) {
// eslint-disable-next-line no-await-in-loop
await mkdir(join(outDir, pkg), { recursive: true });
for (const lang of Object.keys(translationMeta)) {
conversions.push(convertToJSON(pkg, lang));
}
}
conversions.push(
convertToJSON(
"intl-datetimeformat",
"add-all-tz",
".",
"__addTZData",
false
)
);
await Promise.all(conversions);
});
gulp.task(
"build-locale-data",
gulp.series("clean-locale-data", "create-locale-data")
);