PR Size Label Action

A GitHub Action that automatically labels pull requests based on their size (additions + deletions).

Features

• Automatically calculates PR size from additions and deletions
• Intelligently updates labels only when size category changes
• Supports size categories: XS, S, M, L, XL, XXL
• Works with any repository
• Prevents unnecessary label updates for better UX

Size Categories

Size	Lines Changed	Label
0-35	Small changes	size: XS
36-60	Small changes	size: S
61-120	Medium changes	size: M
121-240	Large changes	size: L
241-600	Extra large changes	size: XL
600+	Very large changes	size: XXL

Usage

Basic Usage

name: PR Size Label
on:
  pull_request_target:
    types: [opened, synchronize]

permissions:
  pull-requests: write
  issues: write

jobs:
  size-label:
    runs-on: ubuntu-latest
    steps:
      - name: Label PR by size
        uses: conforma/[email protected]

With Custom Token

name: PR Size Label
on:
  pull_request_target:
    types: [opened, synchronize]

permissions:
  pull-requests: write
  issues: write

jobs:
  size-label:
    runs-on: ubuntu-latest
    steps:
      - name: Label PR by size
        uses: conforma/[email protected]
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

Inputs

Input	Description	Required	Default
token	GitHub token for API access	Yes	${{ github.token }}

Development

1. Install dependencies:

   npm install

2. Build the action:

   npm run build

3. Test locally (you'll need to set up a test repository)

License

Apache 2.0