Generating the proto libraries can be tricky without proper setup. This document describes how to set up the environment to generate the proto libraries. Please follow the steps below exactly to avoid any issues.

• Ensure that Go is installed and the GOPATH environment variable is set.

• Install Proto Buffer compiler (protoc) version 3.0.0 or higher.

  • Download the latest version of protoc from here.

  • Unzip and copy the protoc binary to a directory in your PATH environment variable. i.e. for linux

    unzip protoc-24.3-linux-x86_64.zip -d $HOME/.local
    export PATH="$PATH:$HOME/.local/bin"

  • Ensure protoc is installed and reachable by running protoc --version in a terminal.

  • Important Ensure there is a include directory containing proto files. i.e. for linux

    # .local
    # ├── bin
    # │   └── protoc
    # └── include
    #     └── google
    #         └── protobuf
    #             └── <proto-files>
    ls $HOME/.local/include/google/protobuf
    any.proto  any_test.proto  api.proto  compiler  descriptor.proto  descriptor_test.proto  empty.proto  struct.proto  struct_test.proto  timestamp.proto  timestamp_test.proto  type.proto  type_test.proto  wrappers.proto  wrappers_test.proto

• Install plugins required for Tekton Results proto library generation.

  go install github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway@latest
  go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
  go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest

Here we will use go generate to generate the proto libraries. The proto libraries are generated in the proto directory.

• Change the directory to proto directory.

  cd proto

• Make your changes to the proto files. If you are adding a new plugin please update this document with the steps to install the plugin.

• Run Go Generate

  go generate ./...

This will generate the proto libraries in the proto directory. Please report any issues with the above steps.