Files
ComfyUI_frontend/.github/workflows/ci-vercel-website-preview.yaml
Alexander Brown 55c5fce522 ci: stabilize Vercel website preview URLs per PR (#11478)
## Summary

Make the website preview URL stable per PR and make deployments show up
correctly in the Vercel dashboard.

## Changes

- **What**:
- Pass git metadata (`githubCommitRef`, `githubCommitSha`,
`githubCommitAuthorLogin`, `githubCommitMessage`, `githubPrId`,
`githubRepo`) via `vercel deploy --meta` so deployments group by
branch/PR in the dashboard and pick up branch-scoped env vars.
- Alias each preview deploy to a stable per-PR hostname:
`comfy-website-preview-pr-<N>.vercel.app`. URL no longer changes between
pushes on the same PR.
- PR comment now shows the stable URL prominently, the per-commit URL as
subtext, plus a last-updated timestamp and short SHA so reviewers can
tell if the preview is current.
- User-controlled PR fields routed through env vars (no shell
interpolation of untrusted strings).

## Review Focus

- `PREVIEW_ALIAS_PREFIX` is set to `comfy-website-preview` — confirm
this subdomain pattern is free within the Vercel team (first deploy will
claim it).
- Production job is untouched.
- `vercel.json` keeps `github.enabled: false` — intentional, we stay
CLI-driven.

### Known limitation (out of scope)

Vercel Shareable Links are bound to a specific deployment ID. Aliasing
the stable hostname to a new deployment does **not** carry over
previously-issued share links. If the team needs share links to persist
across pushes, follow-up options: Protection Bypass for Automation
(project-level token) or Deployment Protection Exceptions (Pro+).

### Follow-ups

- Optional `vercel alias rm` on PR close to clean up stale aliases.

## Screenshots (if applicable)

N/A — CI config only. Verification will land on this PR's own preview
run.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-11478-ci-stabilize-Vercel-website-preview-URLs-per-PR-3486d73d3650815ab24be1f7895cecc5)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 20:27:44 +00:00

159 lines
5.0 KiB
YAML

---
name: 'CI: Vercel Website Preview'
on:
pull_request:
types: [opened, synchronize, reopened]
paths:
- 'apps/website/**'
- 'packages/design-system/**'
- 'packages/tailwind-utils/**'
push:
branches: [main]
paths:
- 'apps/website/**'
- 'packages/design-system/**'
- 'packages/tailwind-utils/**'
env:
VERCEL_ORG_ID: ${{ secrets.VERCEL_WEBSITE_ORG_ID }}
VERCEL_PROJECT_ID: ${{ secrets.VERCEL_WEBSITE_PROJECT_ID }}
VERCEL_TOKEN: ${{ secrets.VERCEL_WEBSITE_TOKEN }}
VERCEL_SCOPE: comfyui
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
jobs:
deploy-preview:
if: github.event_name == 'pull_request'
runs-on: ubuntu-latest
permissions:
contents: read
env:
ALIAS_HOST: comfy-website-preview-pr-${{ github.event.pull_request.number }}.vercel.app
steps:
- name: Checkout repository
uses: actions/checkout@v6
- name: Install pnpm
uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0
- name: Setup Node
uses: actions/setup-node@v6
with:
node-version-file: '.nvmrc'
- name: Install Vercel CLI
run: npm install --global vercel@latest
- name: Pull Vercel environment information
run: vercel pull --yes --environment=preview
- name: Build project artifacts
run: vercel build
- name: Fetch head commit metadata
id: head-commit
uses: actions/github-script@v8
with:
script: |
const { data } = await github.rest.repos.getCommit({
owner: context.repo.owner,
repo: context.repo.repo,
ref: context.payload.pull_request.head.sha,
})
const author = data.author?.login || data.commit.author?.name || ''
const message = (data.commit.message || '').split('\n', 1)[0]
core.setOutput('author', author)
core.setOutput('message', message)
- name: Deploy project artifacts to Vercel
id: deploy
env:
GIT_COMMIT_REF: ${{ github.event.pull_request.head.ref }}
GIT_COMMIT_SHA: ${{ github.event.pull_request.head.sha }}
GIT_AUTHOR_LOGIN: ${{ steps.head-commit.outputs.author }}
GIT_COMMIT_MESSAGE: ${{ steps.head-commit.outputs.message }}
GIT_PR_ID: ${{ github.event.pull_request.number }}
GIT_REPO: ${{ github.repository }}
run: |
URL=$(vercel deploy --prebuilt \
--meta githubCommitRef="$GIT_COMMIT_REF" \
--meta githubCommitSha="$GIT_COMMIT_SHA" \
--meta githubCommitAuthorLogin="$GIT_AUTHOR_LOGIN" \
--meta githubCommitMessage="$GIT_COMMIT_MESSAGE" \
--meta githubPrId="$GIT_PR_ID" \
--meta githubRepo="$GIT_REPO")
echo "url=$URL" >> "$GITHUB_OUTPUT"
- name: Alias deployment to stable PR hostname
id: alias-set
continue-on-error: true
env:
DEPLOY_URL: ${{ steps.deploy.outputs.url }}
run: |
vercel alias set "$DEPLOY_URL" "$ALIAS_HOST" --scope="$VERCEL_SCOPE"
- name: Publish preview outputs
env:
DEPLOY_URL: ${{ steps.deploy.outputs.url }}
ALIAS_OK: ${{ steps.alias-set.outcome == 'success' }}
run: |
if [[ "$ALIAS_OK" == "true" ]]; then
STABLE_URL="https://$ALIAS_HOST"
else
STABLE_URL="$DEPLOY_URL"
fi
mkdir -p temp/vercel-preview
echo "$DEPLOY_URL" > temp/vercel-preview/url.txt
echo "$STABLE_URL" > temp/vercel-preview/stable-url.txt
{
echo "**Preview:** $STABLE_URL"
if [[ "$ALIAS_OK" == "true" ]]; then
echo "**This commit:** $DEPLOY_URL"
else
echo "_Stable alias update failed — URL reflects this commit only._"
fi
} >> "$GITHUB_STEP_SUMMARY"
- name: Upload preview metadata
uses: actions/upload-artifact@v6
with:
name: vercel-preview
path: temp/vercel-preview
deploy-production:
if: github.event_name == 'push'
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v6
- name: Install pnpm
uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0
- name: Setup Node
uses: actions/setup-node@v6
with:
node-version-file: '.nvmrc'
- name: Install Vercel CLI
run: npm install --global vercel@latest
- name: Pull Vercel environment information
run: vercel pull --yes --environment=production
- name: Build project artifacts
run: vercel build --prod
- name: Deploy project artifacts to Vercel
id: deploy
run: |
URL=$(vercel deploy --prebuilt --prod)
echo "url=$URL" >> "$GITHUB_OUTPUT"
- name: Add deployment URL to summary
run: echo "**Production:** ${{ steps.deploy.outputs.url }}" >> "$GITHUB_STEP_SUMMARY"