Introduce custom cache key prefix

Author: tvallin

.github/actions/common/action.yml

@@ -54,6 +54,9 @@ inputs:
   setup-java:
     description: Setup java based on env.JAVA_VERSION variable
     default: 'true'
+  cache-key-prefix:
+    description: Add a prefix to cache key
+    default: ''
 runs:
   using: "composite"
   steps:
@@ -97,9 +100,9 @@ runs:
           !.m2/repository/io/helidon/**
         enableCrossOsArchive: true
         # only hash top-level poms to keep it fast
-        key: local-maven-${{ hashFiles('*/pom.xml', 'pom.xml') }}
+        key: ${{ inputs.cache-key-prefix }}local-maven-${{ hashFiles('*/pom.xml', 'pom.xml') }}
         restore-keys: |
-          local-maven-
+          ${{ inputs.cache-key-prefix }}local-maven-
     - name: Cache local Maven repository (read-only)
       if: ${{ inputs.maven-cache == 'read-only' }}
       uses: actions/cache/[email protected]
@@ -108,9 +111,9 @@ runs:
           .m2/repository/**/*.*
           !.m2/repository/io/helidon/**
         enableCrossOsArchive: true
-        key: local-maven-${{ hashFiles('*/pom.xml', 'pom.xml') }}
+        key: ${{ inputs.cache-key-prefix }}local-maven-${{ hashFiles('*/pom.xml', 'pom.xml') }}
         restore-keys: |
-          local-maven-
+          ${{ inputs.cache-key-prefix }}local-maven-
     - name: Build cache (read-write)
       if: ${{ inputs.build-cache == 'read-write' }}
       uses: actions/[email protected]
@@ -119,7 +122,7 @@ runs:
           ./**/target/**
           .m2/repository/io/helidon/**
         enableCrossOsArchive: true
-        key: build-cache-${{ github.run_id }}-${{ github.run_attempt }}-${{ inputs.build-cache-id }}
+        key: ${{ inputs.cache-key-prefix }}build-cache-${{ github.run_id }}-${{ github.run_attempt }}-${{ inputs.build-cache-id }}
         restore-keys: |
           build-cache-${{ github.run_id }}-${{ github.run_attempt }}-
           build-cache-${{ github.run_id }}-
@@ -132,10 +135,10 @@ runs:
           .m2/repository/io/helidon/**
         enableCrossOsArchive: true
         fail-on-cache-miss: true
-        key: build-cache-${{ github.run_id }}-${{ github.run_attempt }}-${{ inputs.build-cache-id }}
+        key: ${{ inputs.cache-key-prefix }}build-cache-${{ github.run_id }}-${{ github.run_attempt }}-${{ inputs.build-cache-id }}
         restore-keys: |
-          build-cache-${{ github.run_id }}-${{ github.run_attempt }}-
-          build-cache-${{ github.run_id }}-
+          ${{ inputs.cache-key-prefix }}build-cache-${{ github.run_id }}-${{ github.run_attempt }}-
+          ${{ inputs.cache-key-prefix }}build-cache-${{ github.run_id }}-
     - name: Exec
       env:
         MVN_ARGS: |

.github/workflows/validate.yml

@@ -32,6 +32,7 @@ env:
   JAVA_VERSION: 21
   GRAALVM_VERSION: 21.0.3
   JAVA_DISTRO: oracle
+  CACHE-KEY-PREFIX: latest-java-
   MVN_ARGS: |
     -B -fae -e
     -Dmaven.wagon.httpconnectionManager.ttlSeconds=60
@@ -95,7 +96,6 @@ jobs:
               -Ptests \
               install
   build-latest-java:
-    needs: test-results
     timeout-minutes: 15
     runs-on: ubuntu-22.04
     steps:
@@ -112,6 +112,7 @@ jobs:
         with:
           build-cache: read-write
           maven-cache: read-write
+          cache-key-prefix: ${{ env.CACHE-KEY-PREFIX }}
           setup-java: false
           run: |
             mvn ${MVN_ARGS} --version
@@ -145,6 +146,7 @@ jobs:
       - uses: ./.github/actions/common
         with:
           build-cache: read-only
+          cache-key-prefix: ${{ env.CACHE-KEY-PREFIX }}
           setup-java: false
           test-artifact-name: tests-${{ matrix.moduleSet }}-${{ matrix.platform }}-latest-java
           run: |