Split ci.yml into separate workflows

Split the `install` and `tests` jobs from `ci.yml` into their own
separate workflows.

.github/workflows/ci.yml

@@ -1,90 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-
-jobs:
-  install:
-    runs-on: ubuntu-latest
-
-    name: Test site installation
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
-
-      - name: Cache dependencies
-        uses: actions/cache@v1
-        with:
-          path: ~/.composer/cache/files
-          key: dependencies-composer-${{ hashFiles('composer.json') }}
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: 7.4
-          extensions: mbstring
-          coverage: none
-
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-interaction --no-suggest
-
-      - name: Install Drupal
-        run: >
-          vendor/bin/drush --root=$(pwd)/web
-          site:install -y
-          --existing-config
-          --db-url=sqlite://sites/default/files/.ht.sqlite
-
-      - name: Start a web server
-        run: php -S localhost:8000 -t web 2>&1 &
-
-      - name: Test loading the home page
-        run: curl http://localhost:8000
-
-      - name: Verify the home page has the site name in it
-        run: curl -s http://localhost:8000 | grep "Oliver Davies"
-
-  tests:
-    runs-on: ubuntu-latest
-
-    name: "Run ${{ matrix.test-types }} tests"
-
-    strategy:
-      matrix:
-        test-types:
-          - functional
-          - kernel
-          - unit
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
-
-      - name: Cache dependencies
-        uses: actions/cache@v1
-        with:
-          path: ~/.composer/cache/files
-          key: dependencies-composer-${{ hashFiles('composer.json') }}
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: 7.4
-          extensions: mbstring
-          coverage: none
-
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-interaction --no-suggest
-
-      - name: Start the local web server
-        run: php -S localhost:8000 -t web 2>&1 &
-        if: matrix.test-types == 'functional'
-
-      - name: Execute tests
-        run: vendor/bin/phpunit --testdox --colors=always --testsuite=${{ matrix.test-types }}
-        env:
-          SIMPLETEST_BASE_URL: http://localhost:8000

.github/workflows/drupal-install.yml

@@ -0,0 +1,54 @@
+name: Drupal installation
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  install:
+    runs-on: ubuntu-latest
+
+    name: Test Drupal site installation
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: |
+            ~/.composer/cache/files
+            web/core
+            web/modules/contrib
+            web/themes/contrib
+            vendor
+          key: dependencies-composer-${{ hashFiles('composer.json') }}
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 7.4
+          extensions: mbstring
+          coverage: none
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-interaction --no-suggest
+
+      - name: Install Drupal
+        run: >
+          vendor/bin/drush --root=$(pwd)/web
+          site:install -y
+          --existing-config
+          --db-url=sqlite://sites/default/files/.ht.sqlite
+
+      - name: Start a web server
+        run: php -S localhost:8000 -t web 2>&1 &
+
+      - name: Test loading the home page
+        run: curl http://localhost:8000
+
+      - name: Verify the home page has the site name in it
+        run: curl -s http://localhost:8000 | grep "Oliver Davies"

.github/workflows/phpunit.yml

@@ -0,0 +1,54 @@
+name: Run PHPUnit tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  phpunit:
+    runs-on: ubuntu-latest
+
+    name: "Run ${{ matrix.test-types }} tests"
+
+    strategy:
+      matrix:
+        test-types:
+          - functional
+          - kernel
+          - unit
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: |
+            ~/.composer/cache/files
+            web/core
+            web/modules/constrib
+            web/themes/contrib
+            vendor
+          key: dependencies-composer-${{ hashFiles('composer.json') }}
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 7.4
+          extensions: mbstring
+          coverage: none
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-interaction --no-suggest
+
+      - name: Start the local web server
+        run: php -S localhost:8000 -t web 2>&1 &
+        if: matrix.test-types == 'functional'
+
+      - name: Execute tests
+        run: vendor/bin/phpunit --testdox --colors=always --testsuite=${{ matrix.test-types }}
+        env:
+          SIMPLETEST_BASE_URL: http://localhost:8000

.gitignore

@@ -2,7 +2,7 @@
 !*/
 !/.gitignore
 !/**/.gitkeep
-!/.github/
+!/.github/**
 !/.idea/
 !/bin/
 !/config/**