## Summary
Enable Codecov carryforward on the `unit` and `e2e` flags so a missing
or late E2E coverage upload no longer produces a false `codecov/patch`
failure.
## Changes
- **What**: Add a `flags` block to `codecov.yml` marking `unit` and
`e2e` as `carryforward: true`. When a flag's upload is absent for a
commit, Codecov reuses that flag's last known coverage for unchanged
files instead of treating those lines as patch misses.
## Review Focus
The `e2e` flag is uploaded by the separate `ci-tests-e2e-coverage`
`workflow_run` job, which runs after CI and currently fails or skips
intermittently (uploaded with `fail_ci_if_error: false`). When that
upload is missing, the head report holds only the `unit` session, so
E2E-only code paths (canvas, vue-nodes, minimap, glsl, etc.) report as
uncovered and the patch status fails against the full-coverage base.
Carryforward fixes that symptom; the flaky coverage workflow remains a
separate root-cause fix.
Validated with `curl --data-binary @codecov.yml
https://codecov.io/validate` → `Valid!`. Carryforward takes effect after
merge once a `main` build establishes a baseline for both flags.
Co-authored-by: Amp <amp@ampcode.com>
## What
Follow-up to #10575. Pass `CODECOV_TOKEN` secret to codecov upload
action and add `codecov.yml` config so Codecov posts coverage diff
comments on PRs.
## Changes
- `ci-tests-unit.yaml`: add `token: ${{ secrets.CODECOV_TOKEN }}`
- `codecov.yml`: configure PR comment layout (header, diff, flags,
files)
## Manual Step Required
An admin needs to add the `CODECOV_TOKEN` secret to the repo:
1. Go to [codecov.io](https://app.codecov.io) → sign in → find
`Comfy-Org/ComfyUI_frontend` → Settings → General → copy the Repository
Upload Token
2. Go to [repo
secrets](https://github.com/Comfy-Org/ComfyUI_frontend/settings/secrets/actions)
→ New repository secret → name: `CODECOV_TOKEN`, value: the token
## Testing
Config-only change. Once the secret is added, the next PR will get a
Codecov coverage comment.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10774-ci-pass-CODECOV_TOKEN-and-add-codecov-yml-for-PR-comments-3346d73d36508169bac5e61eecc94063)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
