codegen.yml

name: aws-codegen

on:
  push:
    branches:
      - master
  workflow_dispatch:
  schedule:
    ## Scheduled nightly at 00:23
    - cron: '23 0 * * *'

jobs:
  check:
    runs-on: ubuntu-20.04
    name: Check if changed
    strategy:
      fail-fast: false

    outputs:
      current_tag: ${{ steps.current-tag.outputs.CURRENT_TAG }}
      latest_tag: ${{ steps.latest-tag.outputs.LATEST_TAG }}

    steps:
      - uses: actions/checkout@v3
      - name: Get tag used for generated files
        id: current-tag
        run: |
          # check if the file exist before
          [[ -f .latest-tag-aws-sdk-go ]] && CURRENT_TAG=$(<.latest-tag-aws-sdk-go) || CURRENT_TAG=''
          echo "CURRENT_TAG=${CURRENT_TAG}" >> $GITHUB_OUTPUT

      - name: Get latest AWS SDK Go tag
        uses: octokit/request-action@v2.x
        id: latest-tag-request
        with:
          route: GET /repos/{owner}/{repo}/releases/latest
          owner: aws
          repo: aws-sdk-go-v2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Set it to the output
        id: latest-tag
        run: |
          tag_name="${{ fromJson(steps.latest-tag-request.outputs.data).tag_name }}"
          echo "LATEST_TAG=${tag_name}" >> $GITHUB_OUTPUT

  generate:
    runs-on: ubuntu-20.04
    name: Update services
    needs: check
    if: ${{ needs.check.outputs.current_tag != needs.check.outputs.latest_tag }}

    env:
      LATEST_AWS_SDK_GO_TAG: ${{ needs.check.outputs.latest_tag }}
      OTP_VERSION: "25.0"
      ELIXIR_VERSION: "1.13.4"

    strategy:
      fail-fast: false

    steps:
      - uses: actions/checkout@v3

      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{ env.OTP_VERSION }}
          elixir-version: ${{ env.ELIXIR_VERSION }}

      - name: Checkout aws/aws-sdk-go-v2 (official Go SDK)
        uses: actions/checkout@v3
        with:
          repository: aws/aws-sdk-go-v2
          path: tmp/aws-sdk-go-v2
          ref: ${{ env.LATEST_AWS_SDK_GO_TAG }}

      - name: Checkout aws-codegen
        uses: actions/checkout@v3
        with:
          repository: aws-beam/aws-codegen
          path: tmp/aws-codegen

      - name: Install Dependencies
        run: |
          mix local.rebar --force
          mix local.hex --force
          mix deps.get

      - name: Generate aws-elixir
        env:
          SPEC_PATH: ../aws-sdk-go-v2/codegen/sdk-codegen/aws-models
          TEMPLATE_PATH: priv
          ELIXIR_OUTPUT_PATH: ../../lib/aws/generated
        run: |
          # Jump to the codegen
          cd tmp/aws-codegen
          mix deps.get

          # Remove first the existing files
          rm -rf $ELIXIR_OUTPUT_PATH
          mkdir -p $ELIXIR_OUTPUT_PATH
          mix run generate.exs elixir $SPEC_PATH $TEMPLATE_PATH $ELIXIR_OUTPUT_PATH

      - name: Test generated code
        run: |
          mix test

      - name: Update latest tag file
        run: |
          echo "${LATEST_AWS_SDK_GO_TAG}" > .latest-tag-aws-sdk-go

      - name: Commit files
        run: |
          git config --local user.email "noreply@github.com"
          git config --local user.name "github-actions[bot]"
          git add lib/aws/generated
          git add .latest-tag-aws-sdk-go
          echo "Update services based on ${{ env.LATEST_AWS_SDK_GO_TAG }} of AWS Go SDK" >> commit-msg
          echo >> commit-msg
          echo "Reference: https://github.com/aws/aws-sdk-go-v2/releases/tag/${{ env.LATEST_AWS_SDK_GO_TAG }}" >> commit-msg
          git commit -F commit-msg

      - name: Push changes
        uses: ad-m/github-push-action@master
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          branch: master