checkproto.yaml

name: CI

on:
  push:
    branches:
      - main
    paths:
      - "agent/agent.proto"
      - "agent/*.pb.go"
  pull_request:
    branches:
      - main
    paths:
      - "agent/agent.proto"
      - "agent/*.pb.go"

jobs:
  checkproto:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Install Go
        uses: actions/setup-go@v3
        with:
          go-version: 1.20.x

      - name: Set up protoc
        run: |
          PROTOC_VERSION=23.3
          PROTOC_GEN_VERSION=v1.31.0
          PROTOC_GRPC_VERSION=v1.3.0

          # Download and install protoc
          PROTOC_ZIP=protoc-$PROTOC_VERSION-linux-x86_64.zip
          curl -0L -o $PROTOC_ZIP https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOC_VERSION/$PROTOC_ZIP
          unzip -o $PROTOC_ZIP -d protoc3
          sudo mv protoc3/bin/* /usr/local/bin/
          sudo mv protoc3/include/* /usr/local/include/
          rm -rf $PROTOC_ZIP protoc3

          # Install protoc-gen-go and protoc-gen-go-grpc
          go install google.golang.org/protobuf/cmd/protoc-gen-go@$PROTOC_GEN_VERSION
          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@$PROTOC_GRPC_VERSION

          # Add protoc to the PATH
          export PATH=$PATH:/usr/local/bin/protoc

      - name: Set up Mainflux
        run: |
          # Rename .pb.go files to .pb.go.tmp to prevent conflicts
          for p in $(ls agent/*.pb.go); do
            mv $p $p.tmp
          done

          # Generate Go files from protobuf definitions
          make protoc

          # Compare generated Go files with the original ones
          for p in $(ls agent/*.pb.go); do
            if ! cmp -s $p $p.tmp; then
              echo "Proto file and generated Go file $p are out of sync!"
              exit 1
            fi
          done