chore(ci): add optimized PR size labeler and batch workflows (#27616)

This commit is contained in:
Sri Pasumarthi
2026-06-01 19:05:33 -07:00
committed by GitHub
parent 665228e983
commit 5110bdf56c
3 changed files with 256 additions and 1 deletions
@@ -0,0 +1,107 @@
name: 'PR Size Labeler (Batch)'
on:
workflow_dispatch:
inputs:
process_all:
description: 'Process all PRs (open and closed) or open only'
required: true
default: 'false'
type: 'choice'
options:
- 'true'
- 'false'
limit:
description: 'Max number of PRs to fetch and check'
required: true
default: '100'
type: 'string'
permissions:
pull-requests: 'write'
jobs:
batch-label:
runs-on: 'ubuntu-latest'
steps:
- name: 'Batch label PRs'
env:
GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
GH_REPO: '${{ github.repository }}'
run: |
# Determine the state filter
STATE="open"
if [ "${{ github.event.inputs.process_all }}" = "true" ]; then
STATE="all"
fi
LIMIT="${{ github.event.inputs.limit }}"
echo "Batch labeling up to $LIMIT $STATE PRs..."
# 1. Ensure standard premium size labels exist in the repository (self-healing)
gh label create "size/XS" --color "7ee081" --description "XS: <10 lines changed" 2>/dev/null || true
gh label create "size/S" --color "a6d49f" --description "S: 10-49 lines changed" 2>/dev/null || true
gh label create "size/M" --color "f7d070" --description "M: 50-249 lines changed" 2>/dev/null || true
gh label create "size/L" --color "f48c06" --description "L: 250-999 lines changed" 2>/dev/null || true
gh label create "size/XL" --color "dc2f02" --description "XL: >=1000 lines changed" 2>/dev/null || true
# 2. Query PR list with all required fields in ONE call to prevent N+1 queries
PR_LIST=$(gh pr list --state "$STATE" --limit "$LIMIT" --json number,additions,deletions,labels)
if [ -z "$PR_LIST" ] || [ "$PR_LIST" = "[]" ]; then
echo "️ No PRs found matching the criteria."
exit 0
fi
# Parse and iterate over PRs
UPDATED_COUNT=0
SKIPPED_COUNT=0
echo "$PR_LIST" | jq -c '.[]' | while read -r PR_JSON; do
PR_NUMBER=$(echo "$PR_JSON" | jq '.number')
ADDITIONS=$(echo "$PR_JSON" | jq '.additions')
DELETIONS=$(echo "$PR_JSON" | jq '.deletions')
TOTAL=$((ADDITIONS + DELETIONS))
# Calculate target size
if [ $TOTAL -lt 10 ]; then
SIZE="size/XS"
elif [ $TOTAL -lt 50 ]; then
SIZE="size/S"
elif [ $TOTAL -lt 250 ]; then
SIZE="size/M"
elif [ $TOTAL -lt 1000 ]; then
SIZE="size/L"
else
SIZE="size/XL"
fi
# Inspect existing labels to detect discrepancies
EXISTING_LABELS=$(echo "$PR_JSON" | jq -r '.labels[].name' 2>/dev/null || echo "")
LABELS_TO_REMOVE=()
for L in size/XS size/S size/M size/L size/XL; do
if echo "$EXISTING_LABELS" | grep -Fq "$L" && [ "$L" != "$SIZE" ]; then
LABELS_TO_REMOVE+=("--remove-label" "$L")
fi
done
LABEL_TO_ADD=()
if ! echo "$EXISTING_LABELS" | grep -Fq "$SIZE"; then
LABEL_TO_ADD+=("--add-label" "$SIZE")
fi
# Update labels if there's a difference
if [ ${#LABELS_TO_REMOVE[@]} -gt 0 ] || [ ${#LABEL_TO_ADD[@]} -gt 0 ]; then
echo "🔄 PR #$PR_NUMBER (+$ADDITIONS/-$DELETIONS = $TOTAL lines): updating size to $SIZE"
gh pr edit "$PR_NUMBER" "${LABELS_TO_REMOVE[@]}" "${LABEL_TO_ADD[@]}" 2>/dev/null || true
UPDATED_COUNT=$((UPDATED_COUNT + 1))
else
echo "✅ PR #$PR_NUMBER (+$ADDITIONS/-$DELETIONS = $TOTAL lines): already has correct label ($SIZE). Skipping."
SKIPPED_COUNT=$((SKIPPED_COUNT + 1))
fi
done
echo "============================================"
echo "🎉 Batch run completed!"
echo "Skipped (already correct): $SKIPPED_COUNT"
echo "Updated: $UPDATED_COUNT"
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@@ -0,0 +1,120 @@
name: 'PR Size Labeler'
on:
pull_request:
types: ['opened', 'synchronize', 'reopened']
workflow_dispatch:
inputs:
pr_number:
description: 'PR number to label manually (for workflow_dispatch)'
required: false
type: 'string'
permissions:
pull-requests: 'write'
issues: 'write'
jobs:
size-label:
runs-on: 'ubuntu-latest'
steps:
- name: 'Run size labeler'
env:
GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
GH_REPO: '${{ github.repository }}'
run: |
# Determine the target PR number
if [ -n "${{ github.event.pull_request.number }}" ]; then
PR_NUMBER="${{ github.event.pull_request.number }}"
elif [ -n "${{ github.event.inputs.pr_number }}" ]; then
PR_NUMBER="${{ github.event.inputs.pr_number }}"
else
echo "❌ Error: No PR number provided."
exit 1
fi
echo "Checking PR #$PR_NUMBER..."
# 1. Ensure standard premium size labels exist in the repository (self-healing)
# size/XS: Light green (#7ee081)
# size/S: Yellow-green (#a6d49f)
# size/M: Amber/Yellow (#f7d070)
# size/L: Orange (#f48c06)
# size/XL: Red (#dc2f02)
gh label create "size/XS" --color "7ee081" --description "XS: <10 lines changed" 2>/dev/null || true
gh label create "size/S" --color "a6d49f" --description "S: 10-49 lines changed" 2>/dev/null || true
gh label create "size/M" --color "f7d070" --description "M: 50-249 lines changed" 2>/dev/null || true
gh label create "size/L" --color "f48c06" --description "L: 250-999 lines changed" 2>/dev/null || true
gh label create "size/XL" --color "dc2f02" --description "XL: >=1000 lines changed" 2>/dev/null || true
# 2. Fetch PR details in a single efficient API call
PR_DATA=$(gh pr view "$PR_NUMBER" --json additions,deletions,changedFiles,labels)
if [ -z "$PR_DATA" ]; then
echo "❌ Error: Could not fetch PR details."
exit 1
fi
ADDITIONS=$(echo "$PR_DATA" | jq '.additions')
DELETIONS=$(echo "$PR_DATA" | jq '.deletions')
CHANGED_FILES=$(echo "$PR_DATA" | jq '.changedFiles')
TOTAL=$((ADDITIONS + DELETIONS))
echo "PR additions: $ADDITIONS, deletions: $DELETIONS, total changes: $TOTAL, files: $CHANGED_FILES"
# 3. Calculate new size label
if [ $TOTAL -lt 10 ]; then
SIZE="size/XS"
elif [ $TOTAL -lt 50 ]; then
SIZE="size/S"
elif [ $TOTAL -lt 250 ]; then
SIZE="size/M"
elif [ $TOTAL -lt 1000 ]; then
SIZE="size/L"
else
SIZE="size/XL"
fi
# 4. Check existing labels and update only if necessary
EXISTING_LABELS=$(echo "$PR_DATA" | jq -r '.labels[].name' 2>/dev/null || echo "")
LABELS_TO_REMOVE=()
for L in size/XS size/S size/M size/L size/XL; do
if echo "$EXISTING_LABELS" | grep -Fq "$L" && [ "$L" != "$SIZE" ]; then
LABELS_TO_REMOVE+=("--remove-label" "$L")
fi
done
LABEL_TO_ADD=()
if ! echo "$EXISTING_LABELS" | grep -Fq "$SIZE"; then
LABEL_TO_ADD+=("--add-label" "$SIZE")
fi
# Perform a single, highly atomic edit call if changes are needed
if [ ${#LABELS_TO_REMOVE[@]} -gt 0 ] || [ ${#LABEL_TO_ADD[@]} -gt 0 ]; then
echo "Updating labels: removing ${LABELS_TO_REMOVE[*]}, adding $SIZE"
gh pr edit "$PR_NUMBER" "${LABELS_TO_REMOVE[@]}" "${LABEL_TO_ADD[@]}"
else
echo "✅ PR #$PR_NUMBER already has the correct size label ($SIZE)."
fi
# 5. Premium, anti-spam comment logic (updates previous comment to keep thread clean)
COMMENT="📊 PR Size: **$SIZE**
- Lines changed: **$TOTAL**
- Additions: +$ADDITIONS
- Deletions: -$DELETIONS
- Files changed: $CHANGED_FILES"
# Find any existing size labeler comment by the github-actions bot
echo "Searching for existing size comment..."
COMMENT_ID=$(gh api "repos/${{ github.repository }}/issues/$PR_NUMBER/comments" \
--jq '.[] | select(.user.login == "github-actions[bot]" and (.body | startswith("📊 PR Size:"))) | .id' | head -n 1)
if [ -n "$COMMENT_ID" ]; then
echo "Updating existing comment (ID: $COMMENT_ID)..."
gh api "repos/${{ github.repository }}/issues/comments/$COMMENT_ID" -X PATCH -f body="$COMMENT" > /dev/null
else
echo "Creating new comment..."
gh pr comment "$PR_NUMBER" --body "$COMMENT" > /dev/null
fi
echo "🎉 PR size labeling completed successfully."
+29 -1
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@@ -154,7 +154,35 @@ and will never be auto-unassigned.
- **Unassign yourself** if you can no longer work on the issue by commenting
`/unassign`, so other contributors can pick it up right away.
### 6. Release automation
### 6. Automatically label PRs by size: `PR Size Labeler`
To help maintainers estimate review effort and keep the PR history clean, this
workflow automatically tags every pull request with a size label representing
the total volume of line changes.
- **Workflow File**: `.github/workflows/pr-size-labeler.yml`
- **When it runs**: Immediately after a pull request is created, synchronized
(new commits pushed), or reopened. It can also be triggered manually via
`workflow_dispatch` with a PR number.
- **What it does**:
- **Calculates total changes**: Summarizes additions and deletions across all
changed files in a single consolidated API request.
- **Applies standard size labels**:
- `size/XS`: < 10 lines changed
- `size/S`: 10-49 lines changed
- `size/M`: 50-249 lines changed
- `size/L`: 250-999 lines changed
- `size/XL`: >= 1000 lines changed
- **Updates size tag atomically**: Adds the new correct size label and removes
any obsolete size labels in one atomic step.
- **Updates/Posts PR size info comment**: Instead of spamming a new comment on
every commit push, it updates the existing size labeler status comment
inline to keep the PR conversation timeline perfectly neat and clean.
- **What you should do**:
- You do not need to take any actions. The workflow runs automatically and
updates the label and comment seamlessly as you push new updates.
### 7. Release automation
This workflow handles the process of packaging and publishing new versions of
Gemini CLI.