Function supportsBuildContexts

src/spec-node/dockerfileUtils.ts:263–273

(dockerfile: Dockerfile)

}

export function supportsBuildContexts(dockerfile: Dockerfile) {
	const version = dockerfile.preamble.version;
	if (!version) {
		return dockerfile.preamble.directives.syntax ? 'unknown' : false;
	}
	const numVersion = (/^\d+(\.\d+){0,2}/.exec(version) || [])[0];
	if (!numVersion) {
		return true; // latest, labs or no tag.
	}
	return semver.intersects(numVersion, '>=1.4');
}

/**
 * Convert mount command' arguments to string