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Memory Impact Comment (Forks) #12

Memory Impact Comment (Forks)

Memory Impact Comment (Forks) #12

---
name: Memory Impact Comment (Forks)
on:
workflow_run:
workflows: ["CI"]
types: [completed]
permissions:
contents: read
pull-requests: write
actions: read
jobs:
memory-impact-comment:
name: Post memory impact comment (fork PRs only)
runs-on: ubuntu-24.04
# Only run for PRs from forks that had successful CI runs
if: >
github.event.workflow_run.event == 'pull_request' &&
github.event.workflow_run.conclusion == 'success' &&
github.event.workflow_run.head_repository.full_name != github.repository
env:
GH_TOKEN: ${{ github.token }}
steps:
- name: Get PR details
id: pr
run: |
# Get PR details by searching for PR with matching head SHA
# The workflow_run.pull_requests field is often empty for forks
# Use paginate to handle repos with many open PRs
head_sha="${{ github.event.workflow_run.head_sha }}"
pr_data=$(gh api --paginate "/repos/${{ github.repository }}/pulls" \
--jq ".[] | select(.head.sha == \"$head_sha\") | {number: .number, base_ref: .base.ref}" \
| head -n 1)
if [ -z "$pr_data" ]; then
echo "No PR found for SHA $head_sha, skipping"
echo "skip=true" >> "$GITHUB_OUTPUT"
exit 0
fi
pr_number=$(echo "$pr_data" | jq -r '.number')
base_ref=$(echo "$pr_data" | jq -r '.base_ref')
echo "pr_number=$pr_number" >> "$GITHUB_OUTPUT"
echo "base_ref=$base_ref" >> "$GITHUB_OUTPUT"
echo "Found PR #$pr_number targeting base branch: $base_ref"
- name: Check out code from base repository
if: steps.pr.outputs.skip != 'true'
uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
with:
# Always check out from the base repository (esphome/esphome), never from forks
# Use the PR's target branch to ensure we run trusted code from the main repo
repository: ${{ github.repository }}
ref: ${{ steps.pr.outputs.base_ref }}
- name: Restore Python
if: steps.pr.outputs.skip != 'true'
uses: ./.github/actions/restore-python
with:
python-version: "3.11"
cache-key: ${{ hashFiles('.cache-key') }}
- name: Download memory analysis artifacts
if: steps.pr.outputs.skip != 'true'
run: |
run_id="${{ github.event.workflow_run.id }}"
echo "Downloading artifacts from workflow run $run_id"
mkdir -p memory-analysis
# Download target analysis artifact
if gh run download --name "memory-analysis-target" --dir memory-analysis --repo "${{ github.repository }}" "$run_id"; then
echo "Downloaded memory-analysis-target artifact."
else
echo "No memory-analysis-target artifact found."
fi
# Download PR analysis artifact
if gh run download --name "memory-analysis-pr" --dir memory-analysis --repo "${{ github.repository }}" "$run_id"; then
echo "Downloaded memory-analysis-pr artifact."
else
echo "No memory-analysis-pr artifact found."
fi
- name: Check if artifacts exist
id: check
if: steps.pr.outputs.skip != 'true'
run: |
if [ -f ./memory-analysis/memory-analysis-target.json ] && [ -f ./memory-analysis/memory-analysis-pr.json ]; then
echo "found=true" >> "$GITHUB_OUTPUT"
else
echo "found=false" >> "$GITHUB_OUTPUT"
echo "Memory analysis artifacts not found, skipping comment"
fi
- name: Post or update PR comment
if: steps.pr.outputs.skip != 'true' && steps.check.outputs.found == 'true'
env:
PR_NUMBER: ${{ steps.pr.outputs.pr_number }}
run: |
. venv/bin/activate
# Pass PR number and JSON file paths directly to Python script
# Let Python parse the JSON to avoid shell injection risks
# The script will validate and sanitize all inputs
python script/ci_memory_impact_comment.py \
--pr-number "$PR_NUMBER" \
--target-json ./memory-analysis/memory-analysis-target.json \
--pr-json ./memory-analysis/memory-analysis-pr.json