Method transform

packages/cli/src/session.ts:34–98

(...transforms: Transform[])

	}

	public async transform(...transforms: Transform[]): Promise<void> {
		const logger = this._logger;
		const document = this._input
			? (await this._io.read(this._input)).setLogger(this._logger)
			: new Document().setLogger(this._logger);

		// Warn and remove lossy compression, to avoid increasing loss on round trip.
		for (const extensionName of ['KHR_draco_mesh_compression', 'EXT_meshopt_compression']) {
			if (document.hasExtension(extensionName)) {
				document.disposeExtension(extensionName);
				this._logger.warn(`Decoded ${extensionName}. Further compression will be lossy.`);
			}
		}

		if (this._display) {
			const tasks = [] as ListrTask[];
			for (const transform of transforms) {
				tasks.push({
					title: transform.name,
					task: async (_ctx, task) => {
						let time = performance.now();
						await document.transform(transform);
						time = Math.round(performance.now() - time);
						task.title = task.title.padEnd(20) + styleText('dim', ` ${formatLong(time)}ms`);
					},
				});
			}

			const prevLevel = logger.getVerbosity();
			if (prevLevel === Verbosity.INFO) logger.setVerbosity(Verbosity.WARN);

			// Disable signal listeners so Ctrl+C works. Note that 'simple' and 'default'
			// renderers have different capability to display errors and warnings.
			await new Listr(tasks, {
				renderer: 'default',
				registerSignalListeners: false,
				silentRendererCondition: process.env.NODE_ENV === 'test',
			}).run();
			console.log('');

			logger.setVerbosity(prevLevel);
		} else {
			await document.transform(...transforms);
		}

		await document.transform(updateMetadata);

		if (this._outputFormat === Format.GLB) {
			await document.transform(unpartition());
		}

		await this._io.write(this._output, document);

		const { lastReadBytes, lastWriteBytes } = this._io;
		if (!this._input) {
			const output = FileUtils.basename(this._output) + '.' + FileUtils.extension(this._output);
			this._logger.info(`${output} (${formatBytes(lastWriteBytes)})`);
		} else {