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name: Lib Dependencies Check
on:
pull_request_target:
types: [opened, synchronize, reopened]
paths:
- "Lib/**"
permissions: {}
concurrency:
group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number }}
cancel-in-progress: true
jobs:
check_deps:
permissions:
pull-requests: write
runs-on: ubuntu-latest
timeout-minutes: 10
steps:
- name: Checkout base branch
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
with:
# Use base branch for scripts (security: don't run PR code with elevated permissions)
ref: ${{ github.event.pull_request.base.ref }}
fetch-depth: 0
persist-credentials: false
- name: Fetch PR head
env:
PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
run: |
git fetch origin "$PR_HEAD_SHA"
- name: Checkout PR Lib files
env:
PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
run: |
# Checkout only Lib/ directory from PR head for accurate comparison
git checkout "$PR_HEAD_SHA" -- Lib/
- name: Get target CPython version
id: cpython-version
run: |
version=$(cat .python-version)
echo "version=${version}" >> "$GITHUB_OUTPUT"
- name: Checkout CPython
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
with:
repository: python/cpython
path: cpython
ref: "v${{ steps.cpython-version.outputs.version }}"
fetch-depth: 1
persist-credentials: false
- name: Get changed Lib files
id: all-changed-files
env:
PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
run: |
# Get the list of changed files under Lib/
{
echo 'changed<<EOF'
git diff --name-only "$PR_BASE_SHA" "$PR_HEAD_SHA" -- 'Lib/*.py' 'Lib/**/*.py'
echo 'EOF'
} >> "$GITHUB_OUTPUT"
- name: Parse changed files
id: changed-files
run: |
from os import environ
files = environ["FILES"]
modules = set()
for file in files.splitlines():
file = file.strip()
if file.startswith("Lib/test/"):
# Test files:
# Lib/test/test_pydoc.py -> test_pydoc
# Lib/test/test_pydoc/foo.py -> test_pydoc
module = file.removeprefix("Lib/test/").split("/")[0]
if not module.startswith("test_"):
continue
else:
# Lib files:
# Lib/foo.py -> foo
# Lib/foo/__init__.py -> foo
module = file.removeprefix("Lib/").split("/")[0]
module = module.split(".")[0]
modules.add(module)
print(f"{modules=}")
output = " ".join(sorted(modules))
output_file = environ["GITHUB_OUTPUT"]
with open(output_file, mode="a", encoding="utf-8") as fd:
fd.write(f"modules={output}\n")
env:
FILES: ${{ steps.all-changed-files.outputs.changed }}
shell: python
- name: Setup Python
if: steps.changed-files.outputs.modules != ''
uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
- name: Run deps check
if: steps.changed-files.outputs.modules != ''
id: deps-check
run: |
# Run deps for all modules at once
echo "deps_output<<EOF" >> "$GITHUB_OUTPUT"
output=$(python scripts/update_lib deps "${MODULES}" --depth 2 2>&1 || true)
echo "$output" >> "$GITHUB_OUTPUT"
echo "EOF" >> "$GITHUB_OUTPUT"
env:
MODULES: ${{ steps.changed-files.outputs.modules }}
- name: Post comment
if: steps.deps-check.outputs.deps_output != ''
uses: marocchino/sticky-pull-request-comment@5770ad5eb8f42dd2c4f34da00c94c5381e49af88 # v3.0.5
with:
header: lib-deps-check
number: ${{ github.event.pull_request.number }}
message: |
## 📦 Library Dependencies
The following Lib/ modules were modified. Here are their dependencies:
${{ steps.deps-check.outputs.deps_output }}
**Legend:**
- `[+]` path exists in CPython
- `[x]` up-to-date, `[ ]` outdated
- name: Remove comment if no Lib changes
if: steps.changed-files.outputs.modules == ''
uses: marocchino/sticky-pull-request-comment@5770ad5eb8f42dd2c4f34da00c94c5381e49af88 # v3.0.5
with:
header: lib-deps-check
number: ${{ github.event.pull_request.number }}
delete: true