8342988: GHA: Build JTReg in single step

.github/actions/build-jtreg/action.yml

@@ -0,0 +1,68 @@
+#
+# Copyright (c) 2023, 2024, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+name: 'Build JTReg'
+description: 'Build JTReg'
+
+runs:
+  using: composite
+  steps:
+    - name: 'Get JTReg version configuration'
+      id: version
+      uses: ./.github/actions/config
+      with:
+        var: JTREG_VERSION
+
+    - name: 'Check cache for already built JTReg'
+      id: get-cached
+      uses: actions/cache@v4
+      with:
+        path: jtreg/installed
+        key: jtreg-${{ steps.version.outputs.value }}
+
+    - name: 'Checkout the JTReg source'
+      uses: actions/checkout@v4
+      with:
+        repository: openjdk/jtreg
+        ref: jtreg-${{ steps.version.outputs.value }}
+        path: jtreg/src
+      if: (steps.get-cached.outputs.cache-hit != 'true')
+
+    - name: 'Build JTReg'
+      run: |
+        # Build JTReg and move files to the proper locations
+        bash make/build.sh --jdk "$JAVA_HOME_11_X64"
+        mkdir ../installed
+        mv build/images/jtreg/* ../installed
+      working-directory: jtreg/src
+      shell: bash
+      if: (steps.get-cached.outputs.cache-hit != 'true')
+
+    - name: 'Upload JTReg artifact'
+      uses: actions/upload-artifact@v4
+      with:
+        name: bundles-jtreg-${{ steps.version.outputs.value }}
+        path: jtreg/installed
+        retention-days: 1

.github/actions/get-jtreg/action.yml

@@ -43,6 +43,7 @@ runs:
       id: get-cached-jtreg
       uses: actions/cache@v4
       with:
+        name: bundles-jtreg-${{ steps.version.outputs.value }}
         path: jtreg/installed
         key: jtreg-${{ steps.version.outputs.value }}
 
@@ -57,7 +58,7 @@ runs:
     - name: 'Build JTReg'
       run: |
         # Build JTReg and move files to the proper locations
-        bash make/build.sh --jdk "$JAVA_HOME_17_X64"
+        bash make/build.sh --jdk "$JAVA_HOME_11_X64"
         mkdir ../installed
         mv build/images/jtreg/* ../installed
       working-directory: jtreg/src

.github/workflows/main.yml

@@ -67,7 +67,19 @@ jobs:
       windows-aarch64: ${{ steps.include.outputs.windows-aarch64 }}
 
     steps:
-        # This function must be inlined in main.yml, or we'd be forced to checkout the repo
+      - name: 'Checkout the scripts'
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: |
+            .github
+            make/conf/github-actions.conf
+
+      - name: 'Build JTReg'
+        id: jtreg
+        uses: ./.github/actions/build-jtreg
+
+      # TODO: Now that we are checking out the repo scripts, we can put the following code
+      # into a separate file
       - name: 'Check what jobs to run'
         id: include
         run: |