update-google-material-icons.yml

name: Keep Google Material Icons up-to-date

on:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * 0' # https://crontab.guru/every-week

jobs:
  check-versions:
    if: ${{ github.ref == 'refs/heads/main' }}
    name: Check available and processed versions
    runs-on: ubuntu-latest
    outputs:
      available: ${{ steps.mdi.outputs.available }}
      processed: ${{ steps.package-json.outputs.processed }}
    steps:
      - name: Check out this repo
        uses: actions/checkout@v2

      - uses: actions/github-script@v4
        name: Fetch the latest Material Design Icons repo info
        id: mdi
        with:
          script: |-
            const lastCommitResponse = await github.repos.listCommits({
              owner: 'google',
              repo: 'material-design-icons',
              per_page: 1,
            });

            const shortHash = lastCommitResponse.data[0].sha.slice(0, 7);

            core.setOutput('available', shortHash);

      - uses: actions/github-script@v4
        name: Get materialDesignIconsCommit from package.json
        id: package-json
        with:
          script: |-
            const fs = require('fs');

            const packageJson = JSON.parse(fs.readFileSync('./package.json'));
            core.setOutput('processed', packageJson.materialDesignIconsCommit);

  update-google-material-icons:
    if: ${{ needs.check-versions.outputs.available != needs.check-versions.outputs.processed }}
    needs: check-versions
    name: Update Google Material Icons
    runs-on: ubuntu-latest
    steps:
      - name: Check out this repo
        uses: actions/checkout@v2

      - name: Download & unzip Material Design Icons zipball
        run: |-
          curl \
            --url "https://github.com/google/material-design-icons/archive/refs/heads/master.zip" \
            --location \
            --header 'Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
            --header 'Connection: close' \
            --output /tmp/material-design-icons.zip \
            --verbose

          # Unpack only src direcrory containing SVGs
          unzip -q /tmp/material-design-icons.zip 'material-design-icons-master/src/*' -d /tmp

      - uses: actions/github-script@v4
        name: Update SVGs in project
        with:
          script: |-
            const path = require('path');

            const safeMv = async (from, to) => {
              try {
                await io.mv(from, to, { force: true });
              } catch (e) {
                if (e.code !== 'ENOENT') {
                  throw e;
                }
              }
            };

            const ROOT_DIR = '/tmp/material-design-icons-master/src/*/*/';
            const variationNameMapping = {
              materialicons: 'baseline',
              materialiconsoutlined: 'outline',
              materialiconsround: 'round',
              materialiconssharp: 'sharp',
              materialiconstwotone: 'twotone',
            };

            const globber = await glob.create(ROOT_DIR, { implicitDescendants: false });

            for await (const dir of globber.globGenerator()) {
              const iconName = path.basename(dir);

              for (const [src, dst] of Object.entries(variationNameMapping)) {
                await safeMv(
                  path.resolve(dir, src, '20px.svg'), 
                  path.resolve('./icons/google', iconName, `${dst}_thin.svg`),
                );
                
                await safeMv(
                  path.resolve(dir, src, '24px.svg'), 
                  path.resolve('./icons/google', iconName, `${dst}.svg`),
                );
              }
            }

      - uses: actions/github-script@v4
        name: Update package.json
        id: package-json
        with:
          last-mdi-commit: ${{ needs.check-versions.outputs.available }}
          script: |-
            const fs = require('fs');

            const packageJson = JSON.parse(fs.readFileSync('./package.json'));
            
            packageJson.materialDesignIconsCommit = core.getInput('last-mdi-commit');

            let [major, minor, patch] = packageJson.version.split('.');
            patch = `${Number(patch) + 1}`;
            packageJson.version = [major, minor, patch].join('.');

            fs.writeFileSync('./package.json', JSON.stringify(packageJson, null, 2));

            core.setOutput('version', packageJson.version);
      
      - name: Commit and push if changed
        run: |-
          git config user.name "GitHub Actions"
          git config user.email "actions@users.noreply.github.com"
          git add icons package.json

          git commit -m "Bump Material Design Icons to v${{ steps.package-json.outputs.version }}" || exit 0
          git push --force origin main