56f88e3bab
This prohibits commits whose commit message starts with "squash!", "fixup!", or "amend!" unless the PR has the 'pr-permit-autosquash' label. Such commits are created via the `--fixup` or `--squash` options to `git commit`, and cause `git rebase --autosquash` to automatically adjust the todo list appropriately before performing the rebase. Their existence implies that the PR should be rebased with `--autosquash` before merging.
49 lines
1.8 KiB
YAML
49 lines
1.8 KiB
YAML
name: Pull Request
|
|
on:
|
|
pull_request:
|
|
types:
|
|
- labeled
|
|
- opened
|
|
- reopened
|
|
- synchronize
|
|
- unlabeled
|
|
|
|
jobs:
|
|
linear-history:
|
|
if: ${{ !contains(github.event.pull_request.labels.*.name, 'pr-permit-nonlinear') }}
|
|
name: Linear History
|
|
runs-on: ubuntu-latest
|
|
steps:
|
|
- uses: actions/checkout@v4
|
|
with:
|
|
fetch-depth: 0
|
|
- name: No new merge commits
|
|
run: |
|
|
log() { printf %s\\n "$*" >&2; }
|
|
error() { log "ERROR: $@"; }
|
|
fatal() { error "$@"; exit 1; }
|
|
try() { log "Running command $@"; "$@" || fatal "'$@' failed"; }
|
|
out=$(try git rev-list -n 1 --merges '${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}') || exit 1
|
|
[ -z "${out}" ] || {
|
|
error "pull request includes a merge commit and does not have the 'pr-permit-nonlinear' label"
|
|
git show "${out}" >&2
|
|
exit 1
|
|
}
|
|
no-autosquash:
|
|
if: ${{ !contains(github.event.pull_request.labels.*.name, 'pr-permit-autosquash') }}
|
|
name: No --autosquash commits
|
|
runs-on: ubuntu-latest
|
|
steps:
|
|
- uses: actions/checkout@v4
|
|
with:
|
|
fetch-depth: 0
|
|
- name: 'No commits with messages starting with "fixup!", "squash!", or "amend!"'
|
|
run: |
|
|
log() { printf %s\\n "$*" >&2; }
|
|
error() { log "ERROR: $@"; }
|
|
fatal() { error "$@"; exit 1; }
|
|
try() { log "Running command $@"; "$@" || fatal "'$@' failed"; }
|
|
out=$(try git log --oneline '${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}') || exit 1
|
|
! grep -E '^[^ ]* (fixup|squash|amend)!' <<EOF || fatal "--autosquash commits not allowed without the 'pr-permit-autosquash' label"
|
|
${out}
|
|
EOF
|