Add houston metadata

.scripts/houstonMetadata.js

@@ -0,0 +1,51 @@
+const getMongoVersion = async function({ version, git }) {
+	try {
+		const workflows = await git.show([`${ version }:.github/workflows/build_and_test.yml`]);
+
+		const mongoMatch = workflows.match(/mongodb\-version: \[([^\]]+)\]/);
+		if (!mongoMatch) {
+			return [];
+		}
+
+		return mongoMatch[1].replace(/"/g, '').replace(/ /g, '').split(',');
+	} catch (e) {
+		console.error(e);
+	}
+	return [];
+};
+
+const getNodeNpmVersions = async function({ version, git, request }) {
+	try {
+		const meteorRelease = await git.show([`${ version }:.meteor/release`]);
+		if (!/^METEOR@(\d+\.){1,2}\d/.test(meteorRelease)) {
+			return {};
+		}
+
+		const meteorVersion = meteorRelease.replace(/\n|\s/g, '');
+
+		const requestResult = await request(`https://raw.githubusercontent.com/meteor/meteor/release/${ meteorVersion }/scripts/build-dev-bundle-common.sh`);
+
+		return {
+			node_version: requestResult.match(/NODE_VERSION=((?:\d+\.){2}\d)/m)[1],
+			npm_version: requestResult.match(/NPM_VERSION=((?:\d+\.){2}\d)/m)[1],
+		};
+	} catch (e) {
+		console.error(e);
+	}
+
+	return {};
+};
+
+module.exports = async function({ version, git, request }) {
+	const mongo_versions = await getMongoVersion({ version, git });
+	const {
+		node_version,
+		npm_version,
+	} = await getNodeNpmVersions({ version, git, request });
+
+	return {
+		node_version,
+		npm_version,
+		mongo_versions,
+	};
+};

package.json

@@ -235,6 +235,7 @@
 		}
 	},
 	"houston": {
+		"metadata": ".scripts/houstonMetadata.js",
 		"updateFiles": [
 			"package.json",
 			".circleci/snap.sh",