Function generateGoogle

registry/scripts/google.ts:827–894

(
	snapshot: GitSnapshot,
	root: string,
	previousFamilyIds: readonly string[],
	taxonomy: Taxonomy,
)

};

export const generateGoogle = async (
	snapshot: GitSnapshot,
	root: string,
	previousFamilyIds: readonly string[],
	taxonomy: Taxonomy,
): Promise<string[]> => {
	const families = readGoogleFamilies(snapshot);
	const tagsByFamily = readGoogleTags(snapshot, taxonomy);
	const languageCatalog = readGoogleLanguages(snapshot);
	const referencedLanguages = new Set(
		[...families.values()].flatMap(({ family }) => [
			...family.languages,
			...(family.primaryLanguage ? [family.primaryLanguage] : []),
		]),
	);
	const unknownLanguages = [...referencedLanguages]
		.filter((language) => !languageCatalog[language])
		.toSorted(compareStrings);
	if (unknownLanguages.length > 0) {
		logger.warn(
			`Ignoring ${unknownLanguages.length} stale Google language references: ${unknownLanguages.join(', ')}`,
		);
	}
	await writeJson(join(root, 'languages.json'), languageCatalog);

	const familyIds = new Set(previousFamilyIds);
	const ctx = createFontContext();
	const matchLanguages = createLanguageMatcher(languageCatalog);
	const sortedFamilies = Array.from(families).toSorted(([left], [right]) =>
		compareStrings(left, right),
	);

	try {
		for (const [index, [id, family]] of sortedFamilies.entries()) {
			const isNew = !familyIds.has(id);
			await writeFamily(
				snapshot,
				id,
				family,
				root,
				ctx,
				tagsByFamily.get(family.family.name) ?? [],
				languageCatalog,
				matchLanguages,
				isNew,
			);
			familyIds.add(id);
			const processed = index + 1;
			if (processed % 100 === 0 && processed < sortedFamilies.length) {
				logger.info(
					`Processed ${processed}/${sortedFamilies.length} font families`,
				);
			}
		}
	} finally {
		ctx.destroy();
	}