Function taskLog

packages/prompts/src/task-log.ts:47–237

(opts: TaskLogOptions)

 * Renders a log which clears on success and remains on failure
 */
export const taskLog = (opts: TaskLogOptions) => {
	const output: Writable = opts.output ?? process.stdout;
	const columns = getColumns(output);
	const secondarySymbol = styleText('gray', S_BAR);
	const spacing = opts.spacing ?? 1;
	const barSize = 3;
	const retainLog = opts.retainLog === true;
	const isTTY = !isCIFn() && isTTYFn(output);

	output.write(`${secondarySymbol}\n`);
	output.write(`${styleText('green', S_STEP_SUBMIT)}  ${opts.title}\n`);
	for (let i = 0; i < spacing; i++) {
		output.write(`${secondarySymbol}\n`);
	}

	const buffers: BufferEntry[] = [
		{
			value: '',
			full: '',
		},
	];
	let lastMessageWasRaw = false;

	const clear = (clearTitle: boolean): void => {
		if (buffers.length === 0) {
			return;
		}

		let lines = 0;

		if (clearTitle) {
			lines += spacing + 2;
		}

		for (const buffer of buffers) {
			const { value, result } = buffer;
			let text = result?.message ?? value;

			if (text.length === 0) {
				continue;
			}

			if (result === undefined && buffer.header !== undefined && buffer.header !== '') {
				text += `\n${buffer.header}`;
			}

			const bufferHeight = text.split('\n').reduce((count, line) => {
				if (line === '') {
					return count + 1;
				}
				return count + Math.ceil((line.length + barSize) / columns);
			}, 0);

			lines += bufferHeight;
		}

		if (lines > 0) {
			lines += 1;