chore: drop support for Node 12 (#3547)

Upgrade the minimal required node release to 14.x, since Node 12 has
been end-of-life since `2022-04-01`. This allows us to upgrade our
TypeScript `target` from `ES2019` to `ES2020` (native support for
nullish-coalescing and optional chaining, among other things).

Removed the `node12` entries from the various test matrices and stop
publishing `node12` tags for `jsii/superchain`.

BREAKING CHANGE: Beginning with this release, jsii packages no longer
support node 12. Users should migrate to a supported node release (14.x,
16.x, or 18.x).

Author: RomainMuller

.github/workflows/docker-images.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: ['12', '14', '16', '18']
+        node: ['14', '16', '18']
     env:
       # Node version whose images will be aliased without the -nodeXX segment
       DEFAULT_NODE_MAJOR_VERSION: 14

.github/workflows/main.yml

@@ -41,11 +41,11 @@ jobs:
         with:
           java-version: '8'
           distribution: 'zulu'
-      - name: Set up Node 12
+      - name: Set up Node 14
         uses: actions/setup-node@v3
         with:
           cache: yarn
-          node-version: '12'
+          node-version: '14'
       - name: Set up Python 3.7
         uses: actions/setup-python@v3
         with:
@@ -70,10 +70,10 @@ jobs:
             !~/.m2/repository/software/amazon/jsii/
             ~/.nuget/packages
             !~/.nuget/packages/amazon.jsii.*
-          key: ${{ runner.os }}-node@12[email protected]${{ hashFiles('**/yarn.lock', '**/Directory.Build.targets') }}
+          key: ${{ runner.os }}-node@14[email protected]${{ hashFiles('**/yarn.lock', '**/Directory.Build.targets') }}
           restore-keys: |-
-            ${{ runner.os }}-node@12[email protected]
-            ${{ runner.os }}-node@12-
+            ${{ runner.os }}-node@14[email protected]
+            ${{ runner.os }}-node@14-
             ${{ runner.os }}-
       # Prepare dependencies and build
       - name: Install Dependencies
@@ -135,11 +135,11 @@ jobs:
         with:
           java-version: '8'
           distribution: 'zulu'
-      - name: Set up Node 12
+      - name: Set up Node 14
         uses: actions/setup-node@v3
         with:
           cache: yarn
-          node-version: '12'
+          node-version: '14'
       - name: Set up Python 3.7
         uses: actions/setup-python@v3
         with:
@@ -164,10 +164,10 @@ jobs:
             !~/.m2/repository/software/amazon/jsii/
             ~/.nuget/packages
             !~/.nuget/packages/amazon.jsii.*
-          key: ${{ runner.os }}-node@12[email protected]${{ hashFiles('**/yarn.lock', '**/Directory.Build.targets') }}
+          key: ${{ runner.os }}-node@14[email protected]${{ hashFiles('**/yarn.lock', '**/Directory.Build.targets') }}
           restore-keys: |-
-            ${{ runner.os }}-node@12[email protected]
-            ${{ runner.os }}-node@12-
+            ${{ runner.os }}-node@14[email protected]
+            ${{ runner.os }}-node@14-
             ${{ runner.os }}-
       # Prepare dependencies and build
       - name: Install Dependencies
@@ -217,67 +217,66 @@ jobs:
         go: ['1.16']
         java: ['8']
         node:
-          - '12' # EOL 2022-04-30
           - '14' # EOL 2023-04-30
           - '16' # EOL 2024-04-30
           - '17' # EOL 2022-06-01
           - '18' # EOL 2025-04-30
         os: [ubuntu-latest]
         python: ['3.7']
-        # Add specific combinations to be tested against "node 12" (to restrict cardinality)
+        # Add specific combinations to be tested against "node 14" (to restrict cardinality)
         include:
           # Test using Windows
           - os: windows-latest
             dotnet: '3.1.x'
             go: '1.16'
             java: '8'
-            node: '12'
+            node: '14'
             python: '3.7'
           # Test using macOS
           - os: macos-latest
             dotnet: '3.1.x'
             go: '1.16'
             java: '8'
-            node: '12'
+            node: '14'
             python: '3.7'
           # Test alternate .NETs
           - java: '8'
             dotnet: '5.0.x'
             go: '1.16'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
             python: '3.7'
           - java: '8'
             dotnet: '6.0.x'
             go: '1.16'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
             python: '3.7'
           # Test alternate Javas
           - java: '11'
             dotnet: '3.1.x'
             go: '1.16'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
             python: '3.7'
           # Test alternate Pythons
           - python: '3.8'
             dotnet: '3.1.x'
             go: '1.16'
             java: '8'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
           - python: '3.9'
             dotnet: '3.1.x'
             go: '1.16'
             java: '8'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
           - python: '3.10'
             dotnet: '3.1.x'
             go: '1.16'
             java: '8'
-            node: '12'
+            node: '14'
             os: ubuntu-latest
 
     runs-on: ${{ matrix.os }}

.github/workflows/yarn-upgrade.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           cache: yarn
-          node-version: 12
+          node-version: 14
 
       - name: Install Tools
         run: |-

.mergify/config.yml

@@ -8,7 +8,6 @@ queue_rules:
       - status-success~=^Test \(macos-.*$
       - status-success~=^Test \(windows-.*$
       # One test for each supported nodejs version
-      - status-success~=^Test \(.* node 12 .*$
       - status-success~=^Test \(.* node 14 .*$
       - status-success~=^Test \(.* node 16 .*$
       - status-success~=^Test \(.* node 17 .*$
@@ -59,7 +58,6 @@ pull_request_rules:
       - status-success~=^Test \(macos-.*$
       - status-success~=^Test \(windows-.*$
       # One test for each supported nodejs version
-      - status-success~=^Test \(.* node 12 .*$
       - status-success~=^Test \(.* node 14 .*$
       - status-success~=^Test \(.* node 16 .*$
       - status-success~=^Test \(.* node 17 .*$
@@ -110,7 +108,6 @@ pull_request_rules:
       - status-success~=^Test \(macos-.*$
       - status-success~=^Test \(windows-.*$
       # One test for each supported nodejs version
-      - status-success~=^Test \(.* node 12 .*$
       - status-success~=^Test \(.* node 14 .*$
       - status-success~=^Test \(.* node 16 .*$
       - status-success~=^Test \(.* node 17 .*$
@@ -161,7 +158,6 @@ pull_request_rules:
       - status-success~=^Test \(macos-.*$
       - status-success~=^Test \(windows-.*$
       # One test for each supported nodejs version
-      - status-success~=^Test \(.* node 12 .*$
       - status-success~=^Test \(.* node 14 .*$
       - status-success~=^Test \(.* node 16 .*$
       - status-success~=^Test \(.* node 17 .*$

package.json

@@ -16,12 +16,12 @@
   },
   "devDependencies": {
     "@jest/types": "^28.1.0",
-    "@types/jest": "^27.5.1",
-    "@types/node": "^12.20.52",
-    "@typescript-eslint/eslint-plugin": "^5.25.0",
-    "@typescript-eslint/parser": "^5.25.0",
+    "@types/jest": "^28.1.0",
+    "@types/node": "^12.20.54",
+    "@typescript-eslint/eslint-plugin": "^5.27.0",
+    "@typescript-eslint/parser": "^5.27.0",
     "all-contributors-cli": "^6.20.0",
-    "eslint": "^8.15.0",
+    "eslint": "^8.16.0",
     "eslint-config-prettier": "^8.5.0",
     "eslint-import-resolver-node": "^0.3.6",
     "eslint-import-resolver-typescript": "^2.7.1",
@@ -31,11 +31,11 @@
     "jest-circus": "^28.1.0",
     "jest-config": "^28.1.0",
     "jest-expect-message": "^1.0.2",
-    "lerna": "^4.0.0",
+    "lerna": "^5.0.0",
     "prettier": "^2.6.2",
     "standard-version": "^9.5.0",
-    "ts-node": "^10.7.0",
-    "typescript": "~4.6.4"
+    "ts-node": "^10.8.0",
+    "typescript": "~4.7.2"
   },
   "repository": {
     "type": "git",

packages/@fixtures/jsii-calc-bundled/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/@fixtures/jsii-calc-bundled"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "index.js"
 }

packages/@jsii/check-node/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/@jsii/check-node"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/dotnet-runtime-test/package.json

@@ -19,7 +19,7 @@
     "directory": "packages/@jsii/dotnet-runtime-test"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/dotnet-runtime/package.json

@@ -25,7 +25,7 @@
     "directory": "packages/@jsii/dotnet-runtime"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/java-runtime-test/package.json

@@ -18,7 +18,7 @@
     "directory": "packages/@jsii/java-runtime-test"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/java-runtime/package.json

@@ -19,7 +19,7 @@
     "directory": "packages/@jsii/java-runtime"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/kernel/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/@jsii/kernel"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/python-runtime/package.json

@@ -18,7 +18,7 @@
     "directory": "packages/@jsii/python-runtime"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "index.js",
   "scripts": {

packages/@jsii/runtime/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/@jsii/runtime"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@jsii/runtime/webpack.config.js

@@ -18,7 +18,7 @@ module.exports = {
     iife: false,
   },
   devtool: 'source-map',
-  target: 'node12.4',
+  target: 'node14.5',
   node: {
     global: false,
     __filename: false,

packages/@jsii/spec/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/@jsii/spec"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@scope/jsii-calc-base-of-base/package.json

@@ -19,7 +19,7 @@
     "directory": "packages/@scope/jsii-calc-base-of-base"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "build/lib/index.js",
   "types": "build/lib/index.d.ts",

packages/@scope/jsii-calc-base/package.json

@@ -19,7 +19,7 @@
     "directory": "packages/@scope/jsii-calc-base"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/@scope/jsii-calc-lib/package.json

@@ -21,7 +21,7 @@
     "directory": "packages/@scope/jsii-calc-lib"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "build/index.js",
   "types": "build/index.d.ts",

packages/codemaker/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/codemaker"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/jsii-calc/package.json

@@ -28,7 +28,7 @@
     "test"
   ],
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/jsii-diff/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/jsii-diff"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "bin": {

packages/jsii-pacmak/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/jsii-pacmak"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

packages/jsii-reflect/package.json

@@ -17,7 +17,7 @@
     "directory": "packages/jsii-reflect"
   },
   "engines": {
-    "node": ">= 12.7.0"
+    "node": ">= 14.5.0"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",