Function convert

convert.js:25–99

({ filePaths, config })

import { showTotal } from './lib/show-total.js';

export async function convert({ filePaths, config }) {
	const {
		isForced,
		isLossless,
		shouldConvertToAvif,
		shouldConvertToWebp,
	} = programOptions;

	const filePathsCount = filePaths.length;

	if (!filePathsCount) {
		return;
	}

	log(`Converting ${filePathsCount} ${getPlural(filePathsCount, 'image', 'images')} (${isLossless ? 'lossless' : 'lossy'})...`);

	const progressBarTotal = shouldConvertToAvif && shouldConvertToWebp
		? filePathsCount * 2
		: filePathsCount;
	const progressBarContainer = createProgressBarContainer(progressBarTotal);
	const progressBar = progressBarContainer.create(progressBarTotal, 0);

	const totalSize = { before: 0, after: 0 };

	const getConfig = format => config?.[format]?.[isLossless ? 'lossless' : 'lossy'];

	const avifConfig = getConfig('avif');
	const webpConfig = getConfig('webp');

	const cpuCount = os.cpus().length;
	const tasksSimultaneousLimit = pLimit(cpuCount);

	const tasks = [];
	for (const filePath of filePaths) {
		if (shouldConvertToAvif) {
			tasks.push(
				tasksSimultaneousLimit(
					() => processFile({
						filePath,
						config: avifConfig || {},
						progressBarContainer,
						progressBar,
						totalSize,
						isForced,
						format: 'AVIF',
						processFunction: processAvif,
					}),
				),
			);
		}

		if (shouldConvertToWebp) {
			tasks.push(
				tasksSimultaneousLimit(
					() => processFile({
						filePath,
						config: webpConfig || {},
						progressBarContainer,