feat: update minimum supported Node version to 18 (#403)

Currently all active and maintenance versions of Node are 18, 20, 22.

.github/workflows/coverage.yml

@@ -28,10 +28,10 @@ jobs:
         with:
           ref: ${{ github.base_ref }}
 
-      - name: Setup nodejs
+      - name: Setup Node
         uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
         with:
-          node-version: "18.x"
+          node-version: 18
 
       - name: Install dependencies
         run: npm install

.github/workflows/lint.yml

@@ -28,10 +28,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Use Nodejs v18.x
+      - name: Setup Node
         uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
         with:
-          node-version: v18.x
+          node-version: 18
 
       - name: Install dependencies
         run: npm install

.github/workflows/tests.yml

@@ -30,13 +30,8 @@ jobs:
     name: Unit tests
     strategy:
       matrix:
-        node-version: [v14.x, v16.x, v20.x]
+        node-version: [18, 20, 22]
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          - os: windows-latest
-            node-version: "v14.x"
-          - os: macos-latest
-            node-version: "v14.x"
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
@@ -71,47 +66,35 @@ jobs:
       - name: Transpile TypeScript
         run: npm run prepare
 
-      # the following steps are node14-only and can be safely removed
-      # once node@14 is no longer supported
-      - name: Setup v14.x-compatible tap
-        if: "${{ matrix.node-version == 'v14.x' }}"
-        run: npm uninstall @typescript-eslint/eslint-plugin eslint-plugin-prettier tap && npm install tap@16 ts-node && npx npm@7 pkg delete tap
-
-      - name: Run Tests v14.x
-        if: "${{ matrix.node-version == 'v14.x' }}"
-        run: npx tap -c -t0 --no-coverage --no-ts --node-arg="--require" --node-arg="./scripts/tap16-adapter.js" --node-arg="--no-warnings" --node-arg="--loader" --node-arg="ts-node/esm" test
-        timeout-minutes: 5
-
       - name: Run Tests
         env:
           TAP_DISABLE_COVERAGE: "1"
           TAP_ALLOW_MISSING_COVERAGE: "1"
           TAP_ALLOW_INCOMPLETE_COVERAGE: "1"
           TAP_ALLOW_EMPTY_COVERAGE: "1"
-        if: "${{ matrix.node-version != 'v14.x' }}"
         run: npx tap -c -t0 -o test_results.tap test
         timeout-minutes: 5
 
       - name: Convert test output to XML
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && always() }}
         run: cat test_results.tap | npx tap - --reporter=junit > sponge_log.xml
 
       - name: FlakyBot (Linux)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Linux' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Linux' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot -o flakybot -s -L
           chmod +x ./flakybot
           ./flakybot --repo ${{github.repository}} --commit_hash ${{github.sha}} --build_url https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}
       - name: FlakyBot (Windows)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Windows' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Windows' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot.exe -o flakybot.exe -s -L
           ./flakybot.exe --repo ${{github.repository}} --commit_hash ${{github.sha}} --build_url https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}
       - name: FlakyBot (macOS)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'macOS' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'macOS' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot-darwin-amd64 -o flakybot -s -L
           chmod +x ./flakybot
@@ -125,17 +108,12 @@ jobs:
       (github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]')
     strategy:
       matrix:
-        node-version: [v14.x, v16.x, v20.x]
+        node-version: [18, 20, 22]
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          - os: windows-latest
-            node-version: "v14.x"
-          - os: macos-latest
-            node-version: "v14.x"
       fail-fast: false
     permissions:
-      contents: "read"
-      id-token: "write"
+      contents: read
+      id-token: write
       issues: write
       pull-requests: write
 
@@ -188,42 +166,12 @@ jobs:
             SQLSERVER_PASS:${{ vars.GOOGLE_CLOUD_PROJECT }}/SQLSERVER_PASS
             SQLSERVER_DB:${{ vars.GOOGLE_CLOUD_PROJECT }}/SQLSERVER_DB
 
-      # the following steps are node14-only and can be safely removed
-      # once node@14 is no longer supported
-      - name: Setup v14.x-compatible tap
-        if: "${{ matrix.node-version == 'v14.x' }}"
-        run: npm uninstall @typescript-eslint/eslint-plugin eslint-plugin-prettier tap && npm install tap@16 ts-node && npx npm@7 pkg delete tap
-
       - name: Setup self-direct dependency
         run: npm link
 
       - name: Link self-direct dependency
         run: npm link @google-cloud/cloud-sql-connector
 
-      - name: Run System Tests v14.x
-        env:
-          MYSQL_CONNECTION_NAME: "${{ steps.secrets.outputs.MYSQL_CONNECTION_NAME }}"
-          MYSQL_IAM_CONNECTION_NAME: "${{ steps.secrets.outputs.MYSQL_IAM_CONNECTION_NAME }}"
-          MYSQL_USER: "${{ steps.secrets.outputs.MYSQL_USER }}"
-          MYSQL_IAM_USER: "${{ steps.secrets.outputs.MYSQL_IAM_USER }}"
-          MYSQL_PASS: "${{ steps.secrets.outputs.MYSQL_PASS }}"
-          MYSQL_DB: "${{ steps.secrets.outputs.MYSQL_DB }}"
-          POSTGRES_CONNECTION_NAME: "${{ steps.secrets.outputs.POSTGRES_CONNECTION_NAME }}"
-          POSTGRES_IAM_CONNECTION_NAME: "${{ steps.secrets.outputs.POSTGRES_IAM_CONNECTION_NAME }}"
-          POSTGRES_USER: "${{ steps.secrets.outputs.POSTGRES_USER }}"
-          POSTGRES_IAM_USER: "${{ steps.secrets.outputs.POSTGRES_IAM_USER }}"
-          POSTGRES_PASS: "${{ steps.secrets.outputs.POSTGRES_PASS }}"
-          POSTGRES_DB: "${{ steps.secrets.outputs.POSTGRES_DB }}"
-          POSTGRES_CAS_CONNECTION_NAME: "${{ steps.secrets.outputs.POSTGRES_CAS_CONNECTION_NAME }}"
-          POSTGRES_CAS_PASS: "${{ steps.secrets.outputs.POSTGRES_CAS_PASS }}"
-          SQLSERVER_CONNECTION_NAME: "${{ steps.secrets.outputs.SQLSERVER_CONNECTION_NAME }}"
-          SQLSERVER_USER: "${{ steps.secrets.outputs.SQLSERVER_USER }}"
-          SQLSERVER_PASS: "${{ steps.secrets.outputs.SQLSERVER_PASS }}"
-          SQLSERVER_DB: "${{ steps.secrets.outputs.SQLSERVER_DB }}"
-        if: "${{ matrix.node-version == 'v14.x' }}"
-        run: npx tap -c -t0 --no-coverage --no-ts --node-arg="--require" --node-arg="./scripts/tap16-adapter.js" --node-arg="--no-warnings" --node-arg="--loader" --node-arg="ts-node/esm" system-test -o test_results.tap
-        timeout-minutes: 5
-
       - name: Run System Tests
         env:
           MYSQL_CONNECTION_NAME: "${{ steps.secrets.outputs.MYSQL_CONNECTION_NAME }}"
@@ -244,30 +192,29 @@ jobs:
           SQLSERVER_USER: "${{ steps.secrets.outputs.SQLSERVER_USER }}"
           SQLSERVER_PASS: "${{ steps.secrets.outputs.SQLSERVER_PASS }}"
           SQLSERVER_DB: "${{ steps.secrets.outputs.SQLSERVER_DB }}"
-        if: "${{ matrix.node-version != 'v14.x' }}"
         run: npx tap -c -t0 --disable-coverage --allow-empty-coverage system-test -o test_results.tap
         timeout-minutes: 5
 
       - name: Convert test output to XML
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && always() }}
         run: cat test_results.tap | npx tap - --reporter=junit > sponge_log.xml
 
       - name: FlakyBot (Linux)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Linux' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Linux' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot -o flakybot -s -L
           chmod +x ./flakybot
           ./flakybot --repo ${{github.repository}} --commit_hash ${{github.sha}} --build_url https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}
       - name: FlakyBot (Windows)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Windows' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'Windows' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot.exe -o flakybot.exe -s -L
           ./flakybot.exe --repo ${{github.repository}} --commit_hash ${{github.sha}} --build_url https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}
       - name: FlakyBot (macOS)
         # only run flakybot on periodic (schedule) and continuous (push) events
-        if: ${{ matrix.node-version != 'v14.x' && (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'macOS' && always() }}
+        if: ${{ (github.event_name == 'schedule' || github.event_name == 'push') && runner.os == 'macOS' && always() }}
         run: |
           curl https://github.com/googleapis/repo-automation-bots/releases/download/flakybot-1.1.0/flakybot-darwin-amd64 -o flakybot -s -L
           chmod +x ./flakybot
@@ -291,13 +238,12 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
         with:
-          node-version: v20.x
+          node-version: 18
 
       - name: Install dependencies
         run: npm ci
 
       - name: Install Prisma on node v16.x and up
-        if: "${{ matrix.node-version != 'v14.x' }}"
         run: npm install prisma
 
       - name: Setup self-direct dependency

package.json

@@ -78,7 +78,7 @@
     "typescript": "^5.1.6"
   },
   "engines": {
-    "node": ">=14"
+    "node": ">=18"
   },
   "repository": {
     "type": "git",