Blog post for Positron August release higlights #1451
Workflow file for this run
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| name: Deploy Preview | |
| on: | |
| pull_request: | |
| branches: ["main"] | |
| pull_request_target: | |
| branches: ["main"] | |
| issue_comment: | |
| types: [created] | |
| permissions: | |
| contents: read | |
| pull-requests: write | |
| jobs: | |
| notify-fork-pr: | |
| # Post a sticky comment on every fork PR explaining /deploy-preview. | |
| # Fork pushes get a read-only GITHUB_TOKEN with no access to secrets, so | |
| # auto-deploy isn't possible regardless of the author's role. Every | |
| # fork-PR author needs the same prompt — including members, who can | |
| # self-trigger by commenting. | |
| if: > | |
| github.event_name == 'pull_request_target' && | |
| github.event.pull_request.head.repo.fork == true | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Post fork preview notice | |
| uses: marocchino/sticky-pull-request-comment@v2 | |
| with: | |
| header: fork-deploy-notice | |
| message: | | |
| ## Preview not available | |
| This PR is from a fork and cannot deploy a preview automatically. | |
| A repository member can comment `/deploy-preview` to trigger one | |
| (including you, if you have member access). | |
| build-and-deploy: | |
| # Two paths to a preview deploy: | |
| # 1. pull_request for non-fork PRs (auto-deploy) | |
| # 2. /deploy-preview comment from a member (covers fork PRs and anyone | |
| # without push access; members with fork PRs self-trigger this way) | |
| concurrency: | |
| group: deploy-preview-${{ github.event_name }}-${{ github.event.pull_request.number || github.event.issue.number }} | |
| cancel-in-progress: true | |
| if: > | |
| ( | |
| github.event_name == 'pull_request' && | |
| github.event.pull_request.head.repo.fork != true | |
| ) || | |
| ( | |
| github.event.issue.pull_request && | |
| ( | |
| github.event.comment.author_association == 'MEMBER' || | |
| github.event.comment.author_association == 'OWNER' || | |
| github.event.comment.author_association == 'COLLABORATOR' | |
| ) && | |
| startsWith(github.event.comment.body, '/deploy-preview') | |
| ) | |
| uses: ./.github/workflows/build-deploy.yml | |
| with: | |
| ref: ${{ format('refs/pull/{0}/merge', github.event.pull_request.number || github.event.issue.number) }} | |
| hugo-flags: "--buildFuture" | |
| deploy-context: "preview" | |
| secrets: inherit | |
| detect-content: | |
| concurrency: | |
| group: deploy-preview-content-${{ github.event_name }}-${{ github.event.pull_request.number || github.event.issue.number }} | |
| cancel-in-progress: true | |
| if: > | |
| ( | |
| github.event_name == 'pull_request' && | |
| github.event.pull_request.head.repo.fork != true | |
| ) || | |
| ( | |
| github.event.issue.pull_request && | |
| ( | |
| github.event.comment.author_association == 'MEMBER' || | |
| github.event.comment.author_association == 'OWNER' || | |
| github.event.comment.author_association == 'COLLABORATOR' | |
| ) && | |
| startsWith(github.event.comment.body, '/deploy-preview') | |
| ) | |
| runs-on: ubuntu-latest | |
| outputs: | |
| has-changes: ${{ steps.detect-content.outputs.has-changes }} | |
| changed: ${{ steps.detect-content.outputs.changed }} | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v5 | |
| with: | |
| ref: ${{ format('refs/pull/{0}/merge', github.event.pull_request.number || github.event.issue.number) }} | |
| fetch-depth: 2 | |
| - name: Detect content changes | |
| id: detect-content | |
| run: | | |
| # HEAD is refs/pull/N/merge — a merge commit whose first parent is | |
| # the base branch. Diffing against HEAD~1 gives exactly the PR's | |
| # changes, even when main has moved ahead of the merge ref. | |
| CHANGED=$(git diff --name-only HEAD~1 -- 'content/' \ | |
| | { grep -E '/_?index\.(md|qmd|ipynb|Rmd|Rmarkdown|markdown|html)$' || true; }) | |
| if [ -z "$CHANGED" ]; then | |
| echo "has-changes=false" >> "$GITHUB_OUTPUT" | |
| else | |
| echo "has-changes=true" >> "$GITHUB_OUTPUT" | |
| EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64) | |
| echo "changed<<$EOF" >> "$GITHUB_OUTPUT" | |
| echo "$CHANGED" >> "$GITHUB_OUTPUT" | |
| echo "$EOF" >> "$GITHUB_OUTPUT" | |
| fi | |
| preview-links: | |
| needs: [build-and-deploy, detect-content] | |
| if: needs.detect-content.outputs.has-changes == 'true' | |
| runs-on: ubuntu-latest | |
| env: | |
| HUGO_VERSION: ${{ needs.build-and-deploy.outputs.hugo-version }} | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v5 | |
| with: | |
| ref: ${{ format('refs/pull/{0}/merge', github.event.pull_request.number || github.event.issue.number) }} | |
| - name: Setup Hugo | |
| run: | | |
| wget -q "https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb" -O hugo.deb | |
| sudo dpkg -i hugo.deb | |
| rm hugo.deb | |
| - name: Build preview links | |
| id: links | |
| env: | |
| DEPLOY_URL: ${{ needs.build-and-deploy.outputs.deploy-url }} | |
| CHANGED_CONTENT: ${{ needs.detect-content.outputs.changed }} | |
| run: | | |
| # hugo list all includes draft, future, and expired content by default | |
| hugo list all > /tmp/hugo-pages.csv | |
| BASE_URL=$(grep '^baseURL' config/_default/hugo.toml | sed "s/.*= *['\"]//;s/['\"]//") | |
| LINKS="" | |
| while IFS= read -r SRC; do | |
| [ -z "$SRC" ] && continue | |
| PERMALINK=$(python3 -c "import csv,sys; src=sys.argv[1]; r=next((r for r in csv.DictReader(open('/tmp/hugo-pages.csv')) if r['path']==src),None); print(r['permalink'] if r else '')" "$SRC") | |
| if [ -n "$PERMALINK" ]; then | |
| URL_PATH="${PERMALINK#$BASE_URL}" | |
| LINKS="$LINKS- [$URL_PATH]($DEPLOY_URL$URL_PATH)"$'\n' | |
| fi | |
| done <<< "$CHANGED_CONTENT" | |
| if [ -z "$LINKS" ]; then | |
| echo "found=false" >> "$GITHUB_OUTPUT" | |
| exit 0 | |
| fi | |
| echo "found=true" >> "$GITHUB_OUTPUT" | |
| BLOG_LINE="" | |
| if printf '%s\n' "$CHANGED_CONTENT" | grep -q 'content/blog/'; then | |
| BLOG_LINE="**Blog listing:** [$DEPLOY_URL/blog/]($DEPLOY_URL/blog/)"$'\n' | |
| fi | |
| cat > /tmp/preview-comment.md <<EOF | |
| ## Preview links | |
| $LINKS | |
| ${BLOG_LINE}**Full site:** [$DEPLOY_URL]($DEPLOY_URL) | |
| EOF | |
| - name: Post preview comment | |
| if: steps.links.outputs.found == 'true' | |
| uses: marocchino/sticky-pull-request-comment@v2 | |
| with: | |
| header: content-preview-links | |
| recreate: true | |
| number: ${{ github.event.pull_request.number || github.event.issue.number }} | |
| path: /tmp/preview-comment.md |