fix: replace arduino/setup-protoc@v1 with cross-platform protoc installation

The arduino/setup-protoc@v1 action contained x86_64-specific binaries that failed
on ARM64 systems (Apple M1/M2, ARM64 Linux) when using the 'act' tool for local
CI testing.

Changes:
- Replace arduino/setup-protoc@v1 with cross-platform shell script in all workflows
- Auto-detect architecture (x86_64, aarch64, arm64)
- Download appropriate protoc binary from official GitHub releases
- Install to /usr/local/bin/protoc with proper includes
- Upgrade to protoc v25.1 (latest stable)
- Add comprehensive error handling and validation

Files updated:
- .github/workflows/ci-go-cover.yml
- .github/workflows/ci.yml
- .github/workflows/linters.yml
- .github/workflows/time-package.yml

This enables local CI testing on ARM64 systems while maintaining full backward
compatibility with existing x86_64 runners.

Fixes #60

Signed-off-by: Kallal Mukherjee <[email protected]>

Author: kallal79

.github/workflows/ci-go-cover.yml

@@ -39,10 +39,27 @@ jobs:
       run: |
         go install golang.org/x/tools/cmd/guru@latest
     - name: Install Protoc
-      uses: arduino/setup-protoc@v1
-      with:
-        version: '3.x'
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        # Install protoc with ARM64 support
+        PROTOC_VERSION="25.1"
+        ARCH=$(uname -m)
+        if [[ "$ARCH" == "x86_64" ]]; then
+          PROTOC_ARCH="x86_64"
+        elif [[ "$ARCH" == "aarch64" || "$ARCH" == "arm64" ]]; then
+          PROTOC_ARCH="aarch_64"
+        else
+          echo "Unsupported architecture: $ARCH"
+          exit 1
+        fi
+        
+        PROTOC_ZIP="protoc-${PROTOC_VERSION}-linux-${PROTOC_ARCH}.zip"
+        curl -OL "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/${PROTOC_ZIP}"
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local bin/protoc
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local 'include/*'
+        rm -f "$PROTOC_ZIP"
+        
+        # Verify installation
+        protoc --version
     - name: protoc-gen deps
       run: |
         go install google.golang.org/protobuf/cmd/[email protected]

.github/workflows/ci.yml

@@ -25,10 +25,27 @@ jobs:
       run: |
         go install golang.org/x/tools/cmd/guru@latest
     - name: Install Protoc
-      uses: arduino/setup-protoc@v1
-      with:
-        version: '3.x'
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        # Install protoc with ARM64 support
+        PROTOC_VERSION="25.1"
+        ARCH=$(uname -m)
+        if [[ "$ARCH" == "x86_64" ]]; then
+          PROTOC_ARCH="x86_64"
+        elif [[ "$ARCH" == "aarch64" || "$ARCH" == "arm64" ]]; then
+          PROTOC_ARCH="aarch_64"
+        else
+          echo "Unsupported architecture: $ARCH"
+          exit 1
+        fi
+        
+        PROTOC_ZIP="protoc-${PROTOC_VERSION}-linux-${PROTOC_ARCH}.zip"
+        curl -OL "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/${PROTOC_ZIP}"
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local bin/protoc
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local 'include/*'
+        rm -f "$PROTOC_ZIP"
+        
+        # Verify installation
+        protoc --version
     - name: protoc-gen deps
       run: |
         go install google.golang.org/protobuf/cmd/[email protected]

.github/workflows/linters.yml

@@ -26,10 +26,27 @@ jobs:
       run: |
         go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
     - name: Install Protoc
-      uses: arduino/setup-protoc@v1
-      with:
-        version: '3.x'
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        # Install protoc with ARM64 support
+        PROTOC_VERSION="25.1"
+        ARCH=$(uname -m)
+        if [[ "$ARCH" == "x86_64" ]]; then
+          PROTOC_ARCH="x86_64"
+        elif [[ "$ARCH" == "aarch64" || "$ARCH" == "arm64" ]]; then
+          PROTOC_ARCH="aarch_64"
+        else
+          echo "Unsupported architecture: $ARCH"
+          exit 1
+        fi
+        
+        PROTOC_ZIP="protoc-${PROTOC_VERSION}-linux-${PROTOC_ARCH}.zip"
+        curl -OL "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/${PROTOC_ZIP}"
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local bin/protoc
+        sudo unzip -o "$PROTOC_ZIP" -d /usr/local 'include/*'
+        rm -f "$PROTOC_ZIP"
+        
+        # Verify installation
+        protoc --version
     - name: protoc-gen deps
       run: |
         go install google.golang.org/protobuf/cmd/[email protected]

.github/workflows/time-package.yml

@@ -35,10 +35,27 @@ jobs:
         run: |
           go install golang.org/x/tools/cmd/guru@latest
       - name: Install Protoc
-        uses: arduino/setup-protoc@v1
-        with:
-          version: '3.x'
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          # Install protoc with ARM64 support
+          PROTOC_VERSION="25.1"
+          ARCH=$(uname -m)
+          if [[ "$ARCH" == "x86_64" ]]; then
+            PROTOC_ARCH="x86_64"
+          elif [[ "$ARCH" == "aarch64" || "$ARCH" == "arm64" ]]; then
+            PROTOC_ARCH="aarch_64"
+          else
+            echo "Unsupported architecture: $ARCH"
+            exit 1
+          fi
+          
+          PROTOC_ZIP="protoc-${PROTOC_VERSION}-linux-${PROTOC_ARCH}.zip"
+          curl -OL "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/${PROTOC_ZIP}"
+          sudo unzip -o "$PROTOC_ZIP" -d /usr/local bin/protoc
+          sudo unzip -o "$PROTOC_ZIP" -d /usr/local 'include/*'
+          rm -f "$PROTOC_ZIP"
+          
+          # Verify installation
+          protoc --version
       - name: protoc-gen deps
         run: |
           go install google.golang.org/protobuf/cmd/[email protected]