Ensure a unique local cache key

.github/workflows/all-pr-tests.yml

@@ -0,0 +1,44 @@
+name: "All Pull Request Tests"
+
+on:
+  pull_request:
+    branches:
+      - develop
+    types: [opened, synchronize, reopened, ready_for_review]
+
+jobs:
+  # We use a single job to ensure that all steps run in the same environment and
+  # reduce the number of minutes used.
+  pr-tests:
+    # Don't run on draft PRs
+    if: github.event.pull_request.draft == false
+    # Timeout after 10 minutes
+    timeout-minutes: 10
+    # Define a matrix of PHP/WordPress versions to test against
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [8.2]
+        wordpress: ["latest"]
+    runs-on: ubuntu-latest
+    # Cancel any existing runs of this workflow
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event.pull_request.number || github.ref }}-P${{ matrix.php }}-WP${{ matrix.wordpress }}
+      cancel-in-progress: true
+    # Name the job in the matrix
+    name: "PR Tests PHP ${{ matrix.php }} WordPress ${{ matrix.wordpress }}"
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run General Tests
+        # See https://github.com/alleyinteractive/action-test-general for more options
+        uses: alleyinteractive/action-test-general@develop
+
+      - name: Run PHP Tests
+        # See https://github.com/alleyinteractive/action-test-php for more options
+        uses: alleyinteractive/action-test-php@develop
+        with:
+          php-version: '${{ matrix.php }}'
+          wordpress-version: '${{ matrix.wordpress }}'
+          skip-wordpress-install: 'true'
+          skip-services: 'true' # Skip MySQL unless the library is not using SQLite testing.

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 All notable changes to `WP Plugin Loader` will be documented in this file.
 
+## 0.1.5 - 2024-09-25
+
+- Ensure that the default cache key is unique to each installation. Previously
+  caching could be polluted across different installations on the same server.
+
 ## 0.1.4 - 2024-04-24
 
 - Fix to actually allow caching to be enabled.

src/class-wp-plugin-loader.php

@@ -77,7 +77,7 @@ public function prevent_activations( bool $prevent = true ): static {
 	 * @return static
 	 */
 	public function enable_caching( ?string $prefix = null ): static {
-		return $this->set_cache_prefix( $prefix ?? 'wp-plugin-loader-' );
+		return $this->set_cache_prefix( $prefix ?? 'wpl-' . basename( ABSPATH ) . '-' );
 	}
 
 	/**