one thing at a time.

Author: dcarbone

.github/workflows/tests.yaml

@@ -39,20 +39,67 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: 'Define vars'
+        id: vars
+        shell: bash -e {0}
+        # language=sh
+        run: |
+          _phpunit_version=
+          case "${{ inputs.php-version }}" in
+            8.1) _phpunit_version='10.5' ;;
+            8.2) _phpunit_version='11.1' ;;
+            8.3) _phpunit_version='11.1' ;;
+            8.4) _phpunit_version='11.1' ;;
+            *) echo "Unsupported PHP version: ${{ inputs.php-version }}" && exit 1 ;;
+          esac
+          echo "phpunit-version=${_phpunit_version}" >> $GITHUB_OUTPUT
+
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
           extensions: json
           ini-values: precision=14,serialize_precision=-1
 
-      - name: 'Composer update'
-        # language=bash
+      - name: 'Install jq'
+        uses: dcarbone/install-jq-action@v3
+        with:
+          force: true
+
+      - name: 'Set composer dep versions'
+        shell: bash -e {0}
+        # language=sh
+        run: |
+          tmpf="$(mktemp)"
+          jq -rcM '."require-dev"."phpunit/phpunit" = "^${{ steps.vars.outputs.phpunit-version }}"' composer.json > "${tmpf}"
+          mv "${tmpf}" composer.json
+
+      - name: 'Get composer cache directory'
+        id: composer-cache
+        shell: bash -e {0}
+        # language=sh
         run: |
-          composer update \
-            --no-ansi \
-            --no-interaction \
-            --no-scripts \
-            --no-progress
+          echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - name: 'Init composer dep cache'
+        id: cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: "composer-${{ runner.os }}-${{ inputs.php-version }}-${{ steps.vars.outputs.phpunit-version }}-${{ hashFiles('composer.lock') }}"
+
+      - name: 'Install composer deps'
+        shell: bash -e {0}
+        # language=sh
+        run: |
+          rm composer.lock
+          composer update --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
+
+      - name: 'Save composer dep cache'
+        if: steps.cache.outputs.cache-hit != 'true' && steps.cache.outputs.cache-hit != true
+        uses: actions/cache/save@v4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: "composer-${{ runner.os }}-${{ inputs.php-version }}-${{ steps.vars.outputs.phpunit-version }}-${{ hashFiles('composer.lock') }}"
 
       - name: 'Install Consul'
         # language=bash