generate.yml

#
# Copyright 2022 The Sigstore Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Check generated code for changes

permissions:
  contents: read

on:
  push:
    paths:
      - '**.proto'
      - 'gen/**'
  pull_request:
    paths:
      - '**.proto'
      - 'gen/**'

jobs:
  check_generated_protos:
    name: Check generated protobufs
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

    # clear out the generated files directory so we know we are actually
    # generating all the files again (instead of a subset)
    - name: Clear out protobuf directory
      run: |
        make clean

    - name: Compile protobufs
      run: |
        make all

    - name: Ensure no files were modified as a result of the codegen
      run: git update-index --refresh && git diff-index --quiet HEAD -- || git diff --exit-code