Add new GH workflow for the xbuilder

.github/workflows/release-31_xbuilder.yml

@@ -0,0 +1,69 @@
+name: Release - xbuilder
+
+on:
+  push:
+    tags:
+      # Catches v1.2.3 and v1.2.3-rc1
+      - v[0-9]+.[0-9]+.[0-9]+*
+  workflow_dispatch:
+
+env:
+  # We can use the following once https://github.com/paritytech/scripts/pull/504 is merged
+  # and the image is available
+  # DOCKER_ORG=paritytech
+  DOCKER_ORG: chevdor
+
+jobs:
+  get-rust-versions:
+    runs-on: ubuntu-latest
+    container:
+      image: paritytech/ci-linux:production
+    outputs:
+      rustc-stable: ${{ steps.get-rust-versions.outputs.stable }}
+      rustc-nightly: ${{ steps.get-rust-versions.outputs.nightly }}
+    steps:
+      - id: get-rust-versions
+        run: |
+          echo "stable=$(rustc +stable --version)" >> $GITHUB_OUTPUT
+          echo "nightly=$(rustc +nightly --version)" >> $GITHUB_OUTPUT
+
+  xbuild:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [ aarch64-unknown-linux-gnu ]
+        profile: [ production ]
+        binary: [ polkadot ]
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Set env for $ {{ matrix.target }}
+        run: |
+          image="${DOCKER_ORG}/parity-xbuilder-${{ matrix.target }}"
+          echo "DOCKER_IMAGE-${{ matrix.target }}=$image" >> $GITHUB_ENV
+
+      - name: Pull xbuilder image for ${{ matrix.target }}
+        env:
+          IMAGE=${DOCKER_IMAGE}-${{ matrix.target }}
+        run: |
+          echo "Pulling image: $IMAGE"
+          docker pull "IMAGE"
+
+      - name: Build ${{ matrix.binary }} for target ${{ matrix.target }} using profile ${{ matrix.profile }}
+        env:
+          IMAGE=${DOCKER_IMAGE}-${{ matrix.target }}
+        run: |
+          docker run --rm -ti \
+            -v $PWD:/app ${IMAGE} \
+            -p ${{ matrix.binary }} \
+            --profile ${{ matrix.profile }}
+          ls -al ./target/${{ matrix.target }}/${{ matrix.profile }}/${{ matrix.binary }}
+
+      - name: Upload ${{ matrix.binary }} / ${{ matrix.target }} / ${{ matrix.profile }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ matrix.binary }}_${{ matrix.target }}_${{ matrix.profile }}
+          path: |
+            ./target/${{ matrix.target }}/${{ matrix.profile }}/${{ matrix.binary }}

.github/workflows/release-99_bot.yml

@@ -27,7 +27,7 @@ jobs:
           - name: 'Ledger <> Polkadot Coordination'
             room: '!EoIhaKfGPmFOBrNSHT:web3.foundation'
             pre-release: true
-    
+
     runs-on: ubuntu-latest
     steps:
       - name: Send Matrix message to ${{ matrix.channel.name }}