chore(ci): add workflow for upgrading jsii & typescript (#470)

.projenrc.ts

@@ -5,6 +5,7 @@
 
 import { cdk } from "projen";
 import { UpgradeDependenciesSchedule } from "projen/lib/javascript";
+import { UpgradeJSIIAndTypeScript } from "./projenrc/upgrade-jsii-typescript";
 import { UpgradeNode } from "./projenrc/upgrade-node";
 import { AutoApprove } from "./src/auto-approve";
 import { Automerge } from "./src/automerge";
@@ -29,6 +30,8 @@ const githubActionPinnedVersions = {
   "peter-evans/create-pull-request": "67ccf781d68cd99b580ae25a5c18a1cc84ffff1f", // v7.0.6
 };
 
+/** JSII and TS should always use the same major/minor version range */
+const typescriptVersion = "~5.4.0";
 const project = new cdk.JsiiProject({
   name: "@cdktf/provider-project",
   author: "HashiCorp",
@@ -37,8 +40,8 @@ const project = new cdk.JsiiProject({
   authorOrganization: true,
   licensed: false, // we do supply our own license file with a custom header
   pullRequestTemplate: false,
-  jsiiVersion: "~5.4.0",
-  typescriptVersion: "~5.4.0", // should always be the same major/minor as JSII
+  typescriptVersion,
+  jsiiVersion: typescriptVersion,
   peerDeps: ["projen@^0.87.4", "constructs@^10.4.2"],
   deps: ["change-case", "fs-extra"],
   bundledDeps: ["change-case", "fs-extra"],
@@ -107,6 +110,7 @@ new CustomizedLicense(project, 2020);
 new LockIssues(project);
 new AutoApprove(project);
 new Automerge(project);
+new UpgradeJSIIAndTypeScript(project, typescriptVersion);
 new UpgradeNode(project);
 
 project.addPackageIgnore("projenrc");

projenrc/scripts/check-jsii-versions.js

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: MPL-2.0
+ */
+const today = new Date();
+const oneMonthFromToday = new Date();
+oneMonthFromToday.setDate(today.getDate() + 30);
+// console.debug("oneMonthFromToday", oneMonthFromToday.toDateString());
+
+/** Return the earliest supported version whose EOS date is at least a month away */
+async function getEarliestSupportedVersion() {
+  // https://github.com/aws/jsii-compiler/blob/main/releases.json
+  const response = await fetch("https://raw.githubusercontent.com/aws/jsii-compiler/main/releases.json");
+  const data = await response.json();
+  const activelySupportedVersions = Object.entries(data.maintenance).filter(([version, supportEndDate]) => {
+    return new Date(supportEndDate) > oneMonthFromToday;
+  }).sort((a, b) => {
+    // Very naive sorting function: treat "5.4" like (int) 54, "5.5" like (int) 55, etc. and compare accordingly
+    return parseInt(a[0].replace(".", ""), 10) > parseInt(b[0].replace(".", ""), 10);
+  });
+
+  console.debug("Actively supported versions with an EOS date at least 1 month away")
+  console.debug(Object.fromEntries(activelySupportedVersions));
+
+  return activelySupportedVersions[0][0];
+}
+
+async function getDesiredVersion() {
+  const earliestSupportedVersion = await getEarliestSupportedVersion();
+  console.debug("earliestSupportedVersion", earliestSupportedVersion);
+
+  return earliestSupportedVersion;
+}
+
+module.exports = async ({github, context, core}) => {
+  const version = await getDesiredVersion();
+
+  core.exportVariable('NEW_JSII_VERSION', version + ".0"); // e.g. "5.4.0"
+  core.exportVariable('NEW_JSII_VERSION_SHORT', version); // e.g. "5.4"
+  core.exportVariable('NEW_JSII_VERSION_MAJOR', version.split(".")[0]); // e.g. "5"
+  core.exportVariable('NEW_JSII_VERSION_MINOR', version.split(".")[1]); // e.g. "4"
+}

projenrc/scripts/upgrade-jsii-typescript.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
+set -ex
+
+PROJECT_ROOT=$(cd "$(dirname "${BASH_SOURCE:-$0}")/.." && pwd)
+NEW_VERSION=$1
+
+if [ -z "$NEW_VERSION" ]; then
+  echo "Usage: $0 <typescript-version>"
+  exit 1
+fi
+
+echo "Updating JSII & TypeScript version to $NEW_VERSION"
+yarn
+sed -i "s/typescriptVersion = \".*\";/typescriptVersion = \"~$NEW_VERSION\";/" "$PROJECT_ROOT/.projenrc.ts"
+CI=0 npx projen
+
+echo "Done"