Add CI Action to build Solana contracts

.github/actions/setup-solana/build-contracts.yml

@@ -0,0 +1,52 @@
+name: Solana build contracts
+description: Build Solana contracts
+
+defaults:
+  run:
+    working-directory: ./chains/solana
+
+runs:
+  using: composite
+  steps:
+    - name: Checkout chainlink-ccip
+      uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+      with:
+        repository: chainlink/chainlink-ccip
+        path: chainlink-ccip
+        # token: ${{ steps.token.outputs.access-token }}
+    - name: Get Anchor Version
+      id: get_anchor_version
+      run: |
+        cd chainlink-ccip
+        anchor=$(make anchor_version)
+        echo "anchor=${anchor}" >>$GITHUB_OUTPUT
+    - name: cache docker build image
+      id: cache-image
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        lookup-only: true
+        path: chains/solana/contracts/docker-build.tar
+        key: ${{ runner.os }}-solana-build-${{ get_anchor_version.outputs.anchor_version }}-${{ hashFiles('**/Cargo.lock') }}
+    - name: Cache cargo target dir
+      id: cache-target
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        lookup-only: true
+        path: chains/solana/contracts/target
+        key: ${{ runner.os }}-solana-contract-artifacts-${{ hashFiles('**/Cargo.lock') }}
+    - name: build & save image
+      if: steps.cache-image.outputs.cache-hit != 'true'
+      run: |
+        cd contracts
+        docker buildx build . -t ccip-solana:build --build-arg ANCHOR_CLI=${{ get_anchor_version.outputs.anchor_version }}
+        docker save -o docker-build.tar ccip-solana
+    - name: build & save contract compilation artifacts
+      if: steps.cache-target.outputs.cache-hit != 'true'
+      run: |
+        docker run -v "$(pwd)/":/solana ccip-solana:build bash -c "\
+          set -eoux pipefail &&\
+          RUSTUP_HOME=\"/root/.rustup\" &&\
+          FORCE_COLOR=1 &&\
+          cd /solana/contracts &&\
+          anchor build &&\
+          chmod -R 755 ./target"

.github/workflows/ci-core.yml

@@ -227,6 +227,10 @@ jobs:
         if: ${{ needs.filter.outputs.should-run-ci-core == 'true' }}
         uses: ./.github/actions/setup-solana
 
+      - name: Build Solana artifacts
+        if: ${{ needs.filter.outputs.should-run-ci-core == 'true' }}
+        uses: ./.github/actions/setup-solana/build-contracts.yml
+
       - name: Setup wasmd
         if: ${{ needs.filter.outputs.should-run-ci-core == 'true' }}
         uses: ./.github/actions/setup-wasmd