GitHub workflows: abi-stable: try to download the artifact

... and only rebuild it if necessary

Signed-off-by: Martin Wilck <mwilck@suse.com>

Author: mwilck

.github/workflows/abi-stable.yaml

@@ -30,22 +30,38 @@ jobs:
       - name: assert parent tag
         run: /bin/false
         if: ${{ env.PARENT_TAG == '' }}
+      - name: try to download ABI for ${{ env.PARENT_TAG }}
+        id: download_abi
+        continue-on-error: true
+        uses: dawidd6/action-download-artifact@v6
+        with:
+          workflow: abi-stable.yaml
+          workflow_conclusion: ''
+          branch: ${{ github.ref_name }}
+          name: multipath-abi-${{ env.PARENT_TAG }}
+          search_artifacts: true
+          path: __unused__
       - name: update
+        if: steps.download_abi.outcome != 'success'
         run: sudo apt-get update
       - name: dependencies
+        if: steps.download_abi.outcome != 'success'
         run: >
           sudo apt-get install --yes gcc
           gcc make pkg-config abigail-tools
           libdevmapper-dev libreadline-dev libaio-dev libsystemd-dev
           libudev-dev libjson-c-dev liburcu-dev libcmocka-dev libedit-dev
           libmount-dev
       - name: checkout ${{ env.PARENT_TAG }}
+        if: steps.download_abi.outcome != 'success'
         uses: actions/checkout@v4
         with:
           ref: ${{ env.PARENT_TAG }}
       - name: build ABI for ${{ env.PARENT_TAG }}
+        if: steps.download_abi.outcome != 'success'
         run: make -j$(nproc) -Orecurse abi
       - name: save ABI
+        if: steps.download_abi.outcome != 'success'
         uses: actions/upload-artifact@v4
         with:
           name: multipath-abi-${{ env.PARENT_TAG }}
@@ -74,13 +90,16 @@ jobs:
           ref: ${{ github.ref }}
       - name: download ABI for ${{ env.PARENT_TAG }}
         id: download_abi
-        uses: actions/download-artifact@v4
+        uses: dawidd6/action-download-artifact@v6
         with:
+          workflow: abi-stable.yaml
+          workflow_conclusion: ''
+          branch: ${{ github.ref_name }}
           name: multipath-abi-${{ env.PARENT_TAG }}
+          search_artifacts: true
           path: reference-abi
       - name: update
         run: sudo apt-get update
-        if: steps.download_abi.outcome != 'success'
       - name: dependencies
         run: >
           sudo apt-get install --yes gcc