convertimages.yml

name: Convert Images

on:
  pull_request:
    types: [opened, synchronize]

permissions:
  actions: read
  checks: read
  contents: write
  deployments: none
  issues: read
  packages: none
  pull-requests: write
  repository-projects: none
  security-events: none
  statuses: none

jobs:
  build:
    runs-on: 'ubuntu-22.04'
    name: Convert Images
    steps:
      - name: Detect branch for PR
        id: vars
        run: |
          PR="${{ github.event.pull_request.number }}"

          PR_INFO=$( curl \
                   --request GET \
                   --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
                   --header 'content-type: application/json' \
                   --url https://api.github.com/repos/$GITHUB_REPOSITORY/pulls/$PR )
          REF=$(echo "${PR_INFO}" | jq -r .head.ref)
          BASE=$(echo "${PR_INFO}" | jq -r .head.repo.full_name)
          STATE=$(echo "${PR_INFO}" | jq -r .state)
          BASE_SHA=$(echo "${PR_INFO}" | jq -r .base.sha)

          if [[ $STATE == "closed" ]]
          then
            echo "Pull Request already closed."
            exit 0;
          fi

          echo "islocalbranch=$(expr $BASE == $GITHUB_REPOSITORY)" >> $GITHUB_OUTPUT
          echo "branch=$REF" >> $GITHUB_OUTPUT
          echo "base=$BASE_SHA" >> $GITHUB_OUTPUT
      - uses: actions/checkout@v4
        if: steps.vars.outputs.branch != ''
      - name: Check images changes
        id: imagecheck
        run: |
          git fetch --depth=1 origin ${{ steps.vars.outputs.base }}

          IMAGES_MODIFIED=$(git diff --name-only ${{ steps.vars.outputs.base }} -- src/ | wc -l)

          if [[ $IMAGES_MODIFIED == "0" ]]
          then
            echo "No images modified"
            exit 0;
          fi

          echo "images_modified=1" >> $GITHUB_OUTPUT
        if: steps.vars.outputs.branch != ''
      - name: Install Dependencies
        run: |
          npm install

          sudo apt-get update

          git clone --recursive https://github.com/kornelski/pngquant.git
          cd pngquant
          cargo build --release
          sudo cp target/release/pngquant /usr/local/bin/
          cd ..
          pngquant --version

          sudo add-apt-repository universe
          sudo add-apt-repository ppa:inkscape.dev/stable
          sudo apt-get update
          sudo apt install inkscape

          sudo apt install imagemagick
        shell: bash
        if: steps.vars.outputs.branch != '' && steps.imagecheck.outputs.images_modified == '1'
      - name: Prepare git config
        run: |
          cat <<- EOF > $HOME/.netrc
            machine github.com
            login innocraft-automation
            password $CUSTOM_ACCESS_TOKEN
            machine api.github.com
            login innocraft-automation
            password $CUSTOM_ACCESS_TOKEN
          EOF
          chmod 600 $HOME/.netrc
          git config --global user.email "innocraft-automation@users.noreply.github.com"
          git config --global user.name "innocraft-automation"
          git remote set-url origin https://x-access-token:${{ secrets.CUSTOM_ACCESS_TOKEN }}@github.com/$GITHUB_REPOSITORY
          if [[ ${{ steps.vars.outputs.islocalbranch }} ]]
          then
            git fetch --depth=1 origin $BRANCH_NAME
            git checkout $BRANCH_NAME
          fi
        env:
          BRANCH_NAME: ${{ steps.vars.outputs.branch }}
        if: steps.vars.outputs.branch != '' && steps.imagecheck.outputs.images_modified == '1'
      - name: Run convert images
        run: ./convert.sh
        shell: bash
        if: steps.vars.outputs.branch != '' && steps.imagecheck.outputs.images_modified == '1'
      - name: Push changes
        id: push
        run: |
          if [[ $( git diff --numstat dist ) ]]
          then
            if [[ ! ${{ steps.vars.outputs.islocalbranch }} ]]
            then
              echo "It's only possible to update local branches automatically. Adding a comment instead."
              echo "failure=1" >> $GITHUB_OUTPUT
            else
              cd $GITHUB_WORKSPACE
              git add dist/ versions.txt
              git commit -m "Generated image files"
              git push
            fi
          fi
        if: steps.vars.outputs.branch != '' && steps.imagecheck.outputs.images_modified == '1'
      - uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: 'Image files are not up to date. Please generate them locally and push them to your branch.'
            })
        if: steps.push.outputs.failure == '1'
      - name: Fail if not up to date
        run: exit 1
        if: steps.push.outputs.failure == '1'