c

i: dont restore the cache for the build job, just save it

- otherwise the save fails with a 'already creating' error

.github/workflows/prs.yml

@@ -8,6 +8,8 @@ jobs:
 
   build:
     runs-on: ubuntu-latest
+    outputs:
+      spring_content_version: ${{ steps.build.outputs.spring_content_version }}
     steps:
     - uses: actions/checkout@v2
       with:
@@ -21,23 +23,21 @@ jobs:
         server-password: MAVEN_PASSWORD
         gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
         gpg-passphrase: MAVEN_GPG_PASSPHRASE
-    - name: Cache Maven packages
-      uses: actions/cache@v3
-      with:
-        path: ~/.m2
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
     - name: Build and Test
+      id: build
       run: |
         export AWS_REGION=us-west-1
         pushd spring-content
           mvn -B -P tests -Dmaven.javadoc.skip=true install --file pom.xml
+          project_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
+          echo "spring_content_version=${project_version}" >> $GITHUB_OUTPUT
         popd
     - name: Save Maven Cache
       id: cache-maven-save
       uses: actions/cache/save@v3
       with:
         path: ~/.m2
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        key: ${{ runner.os }}-maven-${{ github.run_id }}
 
   validate-with-examples:
     runs-on: ubuntu-latest
@@ -56,7 +56,7 @@ jobs:
       uses: actions/cache@v3
       with:
         path: ~/.m2
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        key: ${{ runner.os }}-maven-${{ github.run_id }}
     - uses: actions/checkout@v2
       with:
         repository: paulcwarren/spring-content-examples
@@ -92,7 +92,7 @@ jobs:
       uses: actions/cache@v3
       with:
         path: ~/.m2
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        key: ${{ runner.os }}-maven-${{ github.run_id }}
     - uses: actions/checkout@v2
       with:
         repository: paulcwarren/spring-content-gettingstarted
@@ -102,5 +102,5 @@ jobs:
       run: |
         export AWS_REGION=us-west-1
         pushd spring-content-gettingstarted
-          SPRING_CONTENT_VERSION=3.0.2-SNAPSHOT mvn -B clean install
+          SPRING_CONTENT_VERSION=${{ needs.build.outputs.spring_content_version }} mvn -B clean install
         popd