first draft of deploy-dev-build workflow

Author: emilykl

.github/workflows/ci.yml

@@ -668,6 +668,7 @@ jobs:
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
         name: Upload uncompressed plotly.js built from PR, using Node 22
         with:
+          name: plotly.node22.js
           retention-days: 30
           archive: false
           path: dist/plotly.node22.js

.github/workflows/deploy-dev-build.yml

@@ -0,0 +1,72 @@
+name: Deploy dev build from PR
+
+on:
+  workflow_run:
+    workflows: ["CI"]  # ci.yml
+    types:
+      - completed
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.event == 'pull_request'
+    
+    steps:
+      - name: Download Build Artifact
+        id: download-artifact
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+        continue-on-error: true
+        with:
+          name: plotly.node22.js  # uploaded by ci.yml > publish-dist-node-v22
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path: temp-dist
+
+      - name: Check if Artifact Exists
+        if: steps.download-artifact.outcome != 'success'
+        run: |
+          echo "No build artifact found for this run. Skipping deployment."
+          exit 0 
+
+      - name: Prepare Folder Structure
+        id: prepare-folder-structure
+        run: |
+          PR_NUM="${{ github.event.workflow_run.pull_requests[0].number }}"
+          SHA="${{ github.event.workflow_run.head_sha }}"
+          
+          mkdir -p "deploy/pr-$PR_NUM/$SHA"
+          mkdir -p "deploy/pr-$PR_NUM/latest"
+          
+          # Name of file must match name of file uploaded by ci.yml > publish-dist-node-v22
+          cp temp-dist/plotly.node22.js "deploy/pr-$PR_NUM/$SHA/plotly.js"
+          cp temp-dist/plotly.node22.js "deploy/pr-$PR_NUM/latest/plotly.js"
+          
+          echo "PR_NUM=$PR_NUM" >> $GITHUB_OUTPUT
+          echo "SHA=$SHA" >> $GITHUB_OUTPUT
+
+      - name: Generate GitHub App Token
+        id: generate-token
+        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3  #v3.1.1
+        with:
+          app-id: ${{ variables.DEV_DEPLOY_APP_ID }}
+          private-key: ${{ secrets.DEV_DEPLOY_APP_PRIVATE_KEY }}
+          owner: plotly
+          repositories: plotly.js-dev-builds
+
+      - name: Deploy to plotly.js-dev-builds repo
+        uses: JamesIves/github-pages-deploy-action@d92aa235d04922e8f08b40ce78cc5442fcfbfa2f  # v4.8.0
+        with:
+          repository-name: plotly/plotly.js-dev-builds
+          token: ${{ steps.generate-token.outputs.token }}  # create-github-app-token action automatically outputs the token
+          branch: gh-pages
+          folder: deploy
+          target-folder: .
+          clean: false
+
+      - name: Generate Summary
+        run: |
+          BASE="https://plotly.github.io/plotly.js-dev-builds/pr-${{ steps.prepare-folder-structure.outputs.PR_NUM }}"
+          echo "### PR Build Deployed" >> $GITHUB_STEP_SUMMARY
+          echo "Builds for PR #${{ steps.prepare-folder-structure.outputs.PR_NUM }} are available:" >> $GITHUB_STEP_SUMMARY
+          echo "- [Latest for PR]($BASE/latest/plotly.js)" >> $GITHUB_STEP_SUMMARY
+          echo "- [Immutable (this commit)]($BASE/${{ steps.prepare-folder-structure.outputs.SHA }}/plotly.js)" >> $GITHUB_STEP_SUMMARY