Function checkKTXSoftware

packages/cli/src/transforms/toktx.ts:431–455

(logger: ILogger)

}

export async function checkKTXSoftware(logger: ILogger): Promise<string> {
	if (!(await commandExists(TrustedCommand.KTX)) && !process.env.CI) {
		throw new Error(
			`Command "ktx" not found. Please install KTX-Software ${KTX_SOFTWARE_VERSION_MIN}+, ` +
				'from:\n\nhttps://github.com/KhronosGroup/KTX-Software',
		);
	}

	const [status, stdout, stderr] = await waitExit(spawn('ktx', ['--version']));

	const version = ((stdout || stderr) as string)
		.replace(/ktx version:\s+/, '')
		.replace(/~\d+/, '')
		.trim();

	if (status !== 0 || !version) {
		throw new Error(
			`Unable to find "ktx" version. Confirm KTX-Software ${KTX_SOFTWARE_VERSION_MIN}+ is installed.`,
		);
	} else {
		logger.debug(`ktx: Found KTX-Software ${version}.`);
	}

	return version;
}

function isMultipleOfFour(value: number): boolean {
	return value % 4 === 0;