refactor(ci): restructure workflows

Signed-off-by: Erik Michelson <github@erik.michelson.eu>

.github/actions/setup-node/action.yml

@@ -0,0 +1,36 @@
+# SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+#
+# SPDX-License-Identifier: AGPL-3.0-only
+
+name: Setup Node
+description: "Setups node and configures the cache"
+
+inputs:
+  NODEJS_VERSION:
+    required: true
+    description: "NodeJS version to install"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Get yarn cache directory path
+      id: yarn-cache-dir-path
+      run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
+      shell: bash
+
+    - name: Cache yarn cache
+      uses: actions/cache@6998d139ddd3e68c71e9e398d8e40b71a2f39812 # v3.2.5
+      id: yarn-cache
+      with:
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: ${{ runner.os }}-yarn-master
+
+    - name: Set up NodeJS
+      uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3.6.0
+      with:
+        node-version: ${{ inputs.NODEJS_VERSION }}
+
+    - name: Install dependencies
+      run: yarn install --frozen-lockfile --prefer-offline
+      working-directory: .
+      shell: bash

.github/workflows/build-and-test.yml

@@ -0,0 +1,43 @@
+name: Build & run tests
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: ['14', '16']
+    name: Node ${{ matrix.node }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+
+      - name: Setup Node
+        uses: ./.github/actions/setup-node
+        with:
+          NODEJS_VERSION: ${{ matrix.node }}
+
+      - name: Build project
+        run: yarn run build
+
+      - name: Run tests
+        run: yarn run mocha-suite
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v3
+        if: github.ref == 'refs/heads/master' && matrix.node-version == '16'
+        with:
+          name: Prebuild with Node.js ${{ matrix.node-version }}
+          path: |
+            **
+            !.git
+            !node_modules

.github/workflows/lint.yml

@@ -0,0 +1,32 @@
+name: Lint
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    name: Lint files
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+
+      - name: Setup node
+        uses: ./.github/actions/setup-node
+        with:
+          NODEJS_VERSION: '16'
+
+      - name: Run ESLint
+        run: yarn run eslint
+
+      - name: Lint markdown files
+        run: yarn run markdownlint
+
+      - name: Lint shell scripts with shellcheck
+        run: shellcheck bin/heroku bin/setup
+
+      - name: Lint JSON files
+        run: sudo apt install -y jq && yarn run jsonlint

.github/workflows/node.js.yml

@@ -1,65 +0,0 @@
-name: Node.js CI
-
-on:
-  push:
-    branches: [master]
-  pull_request:
-    branches: [master]
-
-jobs:
-  static-tests:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        command:
-          - yarn run eslint
-          - yarn run markdownlint
-          - shellcheck bin/heroku bin/setup
-          - sudo apt install -y jq && yarn run jsonlint
-    steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js 16
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-          cache: yarn
-      - run: yarn --frozen-lockfile --prefer-offline
-      - run: ${{matrix.command}}
-  dynamic-tests:
-    needs: static-tests
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [14, 16]
-    steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: yarn --frozen-lockfile --prefer-offline
-      - run: yarn run mocha-suite
-  production-build:
-    needs: dynamic-tests
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [14, 16]
-    steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: yarn
-      - run: yarn --frozen-lockfile --prefer-offline
-      - run: yarn run build
-      - uses: actions/upload-artifact@v3
-        if: github.ref == 'refs/heads/master' && matrix.node-version == '16'
-        with:
-          name: Prebuild with Node.js ${{ matrix.node-version }}
-          path: |
-            **
-            !.git
-            !node_modules