Generate playground previews for theme changes #41
Workflow file for this run
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| name: Preview Theme Changes | |
| on: | |
| pull_request: | |
| jobs: | |
| check-for-changes-to-themes: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v2 | |
| - name: Retrieved Theme Changes | |
| id: check-for-changes | |
| run: | | |
| # Retrieve list of all changed files | |
| git fetch origin trunk:trunk | |
| changed_files=$(git diff --name-only HEAD origin/trunk) | |
| # Loop through changed files and identify parent directories | |
| declare -A unique_dirs | |
| for file in $changed_files; do | |
| dir_name=$(dirname "$file") | |
| echo $dir_name | |
| if [[ -f "$dir_name/style.css" ]]; then # Check if the directory contains a theme | |
| # save only the basename | |
| unique_dirs[$dir_name]=$(basename $dir_name) | |
| echo $unique_dirs | |
| fi | |
| done | |
| # Check if themes have changed | |
| if [[ ${#unique_dirs[@]} -eq 0 ]]; then | |
| echo "No theme changes detected" | |
| echo "HAS_THEME_CHANGES=false" >> $GITHUB_OUTPUT | |
| exit 78 # Use neutral exit code | |
| fi | |
| # Output list of theme slugs with changes | |
| echo "HAS_THEME_CHANGES=true" >> $GITHUB_OUTPUT | |
| echo "CHANGED_THEMES=$(echo ${unique_dirs[@]})" >> $GITHUB_ENV | |
| echo "Theme directories with changes: $CHANGED_THEME_DIRS" | |
| - name: Comment on PR | |
| id: comment-on-pr | |
| if: ${{ steps.check-for-changes.outputs.HAS_THEME_CHANGES == 'true' }} | |
| uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const fs = require('fs'); | |
| const createBlueprint = ( themeSlug, branch ) => { | |
| const template = { | |
| steps: [ | |
| { | |
| step: 'login', | |
| username: 'admin', | |
| password: 'password' | |
| }, | |
| { | |
| step: 'installTheme', | |
| themeZipFile: { | |
| resourece: 'url', | |
| url: `https://github-proxy.com/partial/Automattic/themes/${themeSlug}?branch=${branch}` | |
| } | |
| }, | |
| { | |
| step: 'activateTheme', | |
| themeFolderName: themeSlug | |
| } | |
| ] | |
| }; | |
| return JSON.stringify(template); | |
| }; | |
| const getThemeName = (themeSlug) => { | |
| const styleCss = fs.readFileSync(`${themeSlug}/style.css`, 'utf8'); | |
| const themeName = styleCss.match(/Theme Name:(.*)/i)[1].trim(); | |
| return themeName; | |
| }; | |
| const changedThemes = process.env.CHANGED_THEMES.split(' ').map(themeSlug => getThemeName(themeSlug)); | |
| const previewLinks = changedThemes.map(themeSlug => { | |
| return `- [Preview changes for **${getThemeName(themeSlug)}**](https://playground.wordpress.net/#${createBlueprint(themeSlug, context.payload.pull_request.head.ref)})`; | |
| }).join('\n'); | |
| const comment = ` | |
| I've detected changes to the following themes: ${changedThemes.join(', ')}.\n | |
| You can preview these changes by following the links below:\n | |
| ${previewLinks} | |
| I will update this comment with the latest preview links as you push more changes to this PR. | |
| The preview sites are created using [WordPress Playground](https://wordpress.org/playground/). You can add content, edit settings, and test the themes as you would on a real site, | |
| but please note that changes are not saved between sessions. | |
| `; | |
| // Check if a comment already exists | |
| const { data: comments } = await github.rest.issues.listComments({ | |
| issue_number: context.payload.pull_request.number, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo | |
| }); | |
| const existingComment = comments.find(comment => comment.user.login === 'github-actions[bot]' && comment.body.startsWith('### Preview changes')); | |
| if (existingComment) { | |
| await github.rest.issues.updateComment({ | |
| comment_id: existingComment.id, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| body: `### Preview changes\n-\n${comment}` | |
| }); | |
| return; | |
| } | |
| github.rest.issues.createComment({ | |
| issue_number: context.payload.pull_request.number, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| body: `### Preview changes\n-\n${comment}` | |
| }); | |