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Add workflow to warn PRs targeting main #586

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Add workflow to warn PRs targeting main #586

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a3c3a9c
Add workflow to warn PRs targeting main branch
bjorkert Mar 30, 2026
8e13326
Use pull_request_target and catch retargeted PRs
bjorkert Mar 30, 2026
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27 changes: 27 additions & 0 deletions .github/workflows/warn_main_pr.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
name: Warn PR targets main

on:
pull_request_target:
types: [opened, edited]
branches:
- main

jobs:
warn:
if: github.repository_owner == 'loopandlearn'
runs-on: ubuntu-latest

permissions:
pull-requests: write

steps:
- name: Comment on PR
uses: actions/github-script@v7
with:
script: |
await github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: context.payload.pull_request.number,
body: '⚠️ This PR targets the `main` branch. We do not accept PRs directly to `main` — please retarget your PR to the `dev` branch instead.'
});