Changelog Log

GitHub Action that detects new changelog entries and posts them as structured JSON to a webhook.

Features

• 🎯 Git diff-based - Only parses lines actually added
• 📝 Structured JSON output with sections and bullets
• 🚀 Posts to any webhook with custom headers
• 📋 Supports Keep a Changelog & Conventional Changelog formats
• 🔧 Configurable glob patterns and entry separators

Quick Start

name: Changelog Log
on:
  push:
    branches: [main]
    paths: ["**/CHANGELOG*.md"]

jobs:
  notify:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: lukeocodes/changelog-log@v1
        with:
          webhook_url: ${{ secrets.CHANGELOG_WEBHOOK_URL }}

Configuration

Input	Required	Default	Description
webhook_url	Yes	-	Destination URL for JSON payload
file_globs	No	CHANGELOG.md,**/...	Changelog file patterns to watch
entry_separator_regex	No	^##\s+.*$	Regex for entry headers
http_method	No	POST	HTTP method (POST/PUT/PATCH)
webhook_headers_json	No	-	Extra headers as JSON string
extra_body_json	No	-	Extra fields to merge into payload
include_body_raw	No	false	Include unparsed entry text
log_level	No	warn	Log level (trace/debug/info/warn/error/fatal)

JSON Payload

{
  "filePath": "CHANGELOG.md",
  "commit": { "before": "abc123...", "after": "def456..." },
  "header": "## [1.2.3] - 2025-10-17",
  "version": "1.2.3",
  "date": "2025-10-17",
  "sections": {
    "Added": ["New feature X"],
    "Fixed": ["Bug Z"]
  }
}

Custom Fields

Use extra_body_json to add custom fields to the payload:

- uses: lukeocodes/changelog-log@v1
  with:
    webhook_url: ${{ secrets.WEBHOOK_URL }}
    extra_body_json: '{"project":"myapp","environment":"production"}'

This will merge the extra fields into the payload:

{
  "filePath": "CHANGELOG.md",
  "version": "1.2.3",
  "project": "myapp",
  "environment": "production",
  ...
}

Contributing

See CONTRIBUTING.md. Use conventional commits for PRs.

License

MIT © Luke Oliff