molecule-ai/molecule-core
35
0
Fork 2
Code Issues 16 Pull Requests 2 Actions 49 Packages Projects Releases Wiki Activity

fix(retarget): skip PRs whose head is staging (auto-promote PRs)

Browse Source 
The retarget-main-to-staging workflow tries to PATCH base=staging on
every bot-authored PR opened against main. Auto-promote staging→main
PRs have head=staging, base=main — retargeting them sets head AND
base to staging, which GitHub rejects with HTTP 422 "no new commits
between base 'staging' and head 'staging'".

This started surfacing on PR #2588 (2026-05-03 14:30) once #2586
switched the auto-promote workflow to an App token. Before #2586
the auto-promote PR was authored by github-actions[bot], which the
retarget filter happened to skip; now it's molecule-ai[bot], which
passes the bot filter and triggers the broken retarget attempt.

Add a head-ref != 'staging' guard so auto-promote PRs short-circuit
before the PATCH. The existing 422 "duplicate base" detector is
left alone — it covers a different operational case.
This commit is contained in:
Hongming Wang 2026-05-03 07:34:24 -07:00
parent c45aa8d7ee
commit 2b3f44c3c8
1 changed files with 15 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
.github/workflows/retarget-main-to-staging.yml vendored
View File

@ -26,11 +26,22 @@ jobs:
runs-on: ubuntu-latest
# Only fire for bot-authored PRs. Human CEO PRs (staging→main promotion)
# are intentional and pass through.
#
# Head-ref guard: never retarget a PR whose head IS `staging` — those
# are the auto-promote staging→main PRs (opened by molecule-ai[bot]
# since #2586 switched to an App token, which now passes the bot
# filter below). Retargeting head=staging onto base=staging fails
# with HTTP 422 "no new commits between base 'staging' and head
# 'staging'", which used to surface as a noisy red workflow run on
# every auto-promote (caught 2026-05-03 on PR #2588).
if: >-
github.event.pull_request.user.type == 'Bot'
|| endsWith(github.event.pull_request.user.login, '[bot]')
|| github.event.pull_request.user.login == 'app/molecule-ai'
|| github.event.pull_request.user.login == 'molecule-ai[bot]'
github.event.pull_request.head.ref != 'staging'
&& (
github.event.pull_request.user.type == 'Bot'
|| endsWith(github.event.pull_request.user.login, '[bot]')
|| github.event.pull_request.user.login == 'app/molecule-ai'
|| github.event.pull_request.user.login == 'molecule-ai[bot]'
)
steps:
- name: Retarget PR base to staging
id: retarget