Deploy to example repo on every MR to validate CI works with default settings.

.github/workflows/update-example.yml

@@ -0,0 +1,120 @@
+name: Update Example Repo
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches: [main]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  update-example:
+    runs-on: ubuntu-latest
+    environment: cookiecutter-uv-example
+    # Forks don't have access to secrets, skip them
+    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Set up the environment
+        uses: ./.github/actions/setup-python-env
+
+      - name: Determine target branch
+        id: branch
+        run: |
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            echo "name=preview/pr-${{ github.event.pull_request.number }}" >> $GITHUB_OUTPUT
+          else
+            echo "name=main" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Bake example project
+        run: |
+          uv run cookiecutter --no-input . --overwrite-if-exists \
+            author="Example User" \
+            email="example@osprey-oss.org" \
+            author_github_handle="osprey-oss" \
+            project_name="cookiecutter-uv-example"
+
+      - name: Patch baked workflow to trigger on preview branches
+        if: github.event_name == 'pull_request'
+        run: |
+          python -c "
+          import pathlib
+          f = pathlib.Path('cookiecutter-uv-example/.github/workflows/main.yml')
+          f.write_text(f.read_text().replace(
+              '      - main\n',
+              '      - main\n      - \"preview/**\"\n',
+              1
+          ))
+          "
+
+      - name: Push to cookiecutter-uv-example
+        env:
+          BRANCH: ${{ steps.branch.outputs.name }}
+          TOKEN: ${{ secrets.EXAMPLE_REPO_PUSH_TOKEN }}
+        run: |
+          cd cookiecutter-uv-example
+          uv sync
+          git init
+          git checkout -b "$BRANCH"
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add .
+          uv run pre-commit run -a || true
+          git add .
+          git commit -m "chore: sync from cookiecutter-uv@${{ github.sha }}"
+          git remote add origin "https://x-access-token:${TOKEN}@github.com/osprey-oss/cookiecutter-uv-example.git"
+          git push -f origin "$BRANCH"
+
+      - name: Post or update PR comment
+        if: github.event_name == 'pull_request'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const branch = '${{ steps.branch.outputs.name }}';
+            const sha = '${{ github.sha }}';
+            const marker = '<!-- cookiecutter-example-bot -->';
+            const encodedBranch = branch.split('/').map(encodeURIComponent).join('/');
+            const repoUrl = 'https://github.com/osprey-oss/cookiecutter-uv-example';
+
+            const body = [
+              marker,
+              '### 🍪 Example repo updated',
+              '',
+              `The baked example for this PR has been pushed to [osprey-oss/cookiecutter-uv-example](${repoUrl}/tree/${branch}).`,
+              '',
+              '| | |',
+              '|---|---|',
+              `| Branch | [\`${branch}\`](${repoUrl}/tree/${branch}) |`,
+              `| CI | [View Actions →](${repoUrl}/actions?query=branch%3A${encodedBranch}) |`,
+              `| Synced at | \`${sha.slice(0, 7)}\` |`,
+              '',
+              '_Uses default configuration. Non-default options are validated by the slow tests in this repo\'s CI._',
+            ].join('\n');
+
+            const { data: comments } = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+            });
+
+            const existing = comments.find(c => c.body.includes(marker));
+            if (existing) {
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: existing.id,
+                body,
+              });
+            } else {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                body,
+              });
+            }

Makefile

@@ -10,27 +10,6 @@ bake-src: ## bake without inputs and overwrite if exists.
 bake-with-inputs: ## bake with inputs and overwrite if exists.
 	@uv run cookiecutter . --overwrite-if-exists
 
-.PHONY: bake-and-test-deploy
-bake-and-test-deploy: ## For quick publishing to cookiecutter-uv-example to test GH Actions
-	@rm -rf cookiecutter-uv-example || true
-	@uv run cookiecutter --no-input . --overwrite-if-exists \
-		author="Florian Maas" \
-		email="foo@email.com" \
-		github_author_handle=fpgmaas \
-		project_name=cookiecutter-uv-example \
-		project_slug=cookiecutter_uv_example
-	@cd cookiecutter-uv-example; uv sync && \
-		git init -b main && \
-		git add . && \
-		uv run pre-commit install && \
-		uv run pre-commit run -a || true && \
-		git add . && \
-		uv run pre-commit run -a || true && \
-		git add . && \
-		git commit -m "init commit" && \
-		git remote add origin git@github.com:osprey-oss/cookiecutter-uv-example.git && \
-		git push -f origin main
-
 
 .PHONY: install
 install: ## Install the virtual environment