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---
name: PR cleanliness
on: [pull_request]
permissions: {}
jobs:
pr_clean:
runs-on: ubuntu-latest
permissions:
contents: read
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: '0'
persist-credentials: false
- name: Check for added-and-deleted files
run: |
git fetch --quiet origin "$GITHUB_BASE_REF"
base="$(git merge-base "origin/$GITHUB_BASE_REF" 'HEAD^2')"
ad="$(git log "$base..HEAD^2" --pretty=tformat: --name-status --diff-filter=AD |
cut --fields 2 | sort | uniq --repeated)"
if [[ -n "$ad" ]]; then
printf 'The following files were both added and deleted in this PR:\n%s\n' "$ad"
exit 1
fi
- name: Check for added-and-modified images
run: |
git fetch --quiet origin "$GITHUB_BASE_REF"
base="$(git merge-base "origin/$GITHUB_BASE_REF" 'HEAD^2')"
am="$(git log "$base..HEAD^2" --pretty=tformat: --name-status --diff-filter=AM |
cut --fields 2 | sort | uniq --repeated |
grep -E '\.(png|pdf|ps|eps|svg)' || true)"
if [[ -n "$am" ]]; then
printf 'The following images were both added and modified in this PR:\n%s\n' "$am"
exit 1
fi
- name: Check for invalid backports to -doc branches
if: endsWith(github.base_ref, '-doc')
run: |
git fetch --quiet origin "$GITHUB_BASE_REF"
base="$(git merge-base "origin/$GITHUB_BASE_REF" 'HEAD^2')"
lib="$(git log "$base..HEAD^2" --pretty=tformat: --name-status -- lib src |
cut --fields 2 | sort || true)"
if [[ -n "$lib" ]]; then
printf 'Changes to the following files have no effect and should not be backported:\n%s\n' "$lib"
exit 1
fi
- name: Check for branches opened against main
if: github.ref_name == 'main'
run: |
echo 'PR branch should not be main.'
echo 'See https://matplotlib.org/devdocs/devel/development_workflow.html#make-a-new-feature-branch'
exit 1