AI-Powered Git Changelog Generator for Automated Release Notes
AI-Powered Git Changelog Generator for Automated Release Notes This workflow transforms your software release process by automatically generating clean, professional changelogs from your Git commit history. It listens for new version tags in your GitHub repository, uses AI to summarize the changes, and publishes a polished release note, saving you hours of manual work. Disclaimer This template is designed for self-hosted n8n instances and requires API credentials for GitHub and an AI provider (e.g., OpenAI, Google Gemini). 🚀 Key Features Fully Automated Process:** Triggers automatically on a git push --tags event. Set it up once and forget about it. AI-Powered Summarization:** Leverages a Large Language Model (LLM) to intelligently read, categorize, and summarize your commit messages into a human-friendly format. Seamless GitHub Integration:** Fetches commit data and creates official GitHub Releases without leaving the n8n environment. Smart Categorization:** Automatically groups release notes into sections like "Features," "Fixes," and "Other Changes" for clarity. Highly Customizable:** Easily adapt the AI prompt, changelog format, and release template to match your project's style. Saves Developer Time:** Eliminates the tedious, manual task of writing release notes, freeing up developers to focus on coding. ⚙️ How It Works The workflow is a linear process triggered by a webhook from GitHub. 1. GitHub Webhook Trigger A Webhook node is configured to listen for push events from your specified GitHub repository. It is filtered to only run when a new tag (e.g., v1.2.0) is pushed, which is the standard practice for signaling a new release. 2. Fetch Commit History Once triggered, a GitHub node uses the webhook payload to identify the repository and the new tag. It makes an API call to GitHub to compare the new tag with the most recent previous tag, fetching all the commit messages in between. 3. AI Summarization The list of raw commit messages is passed to an AI node (e.g., OpenAI or Google Gemini). A pre-defined prompt instructs the AI to process the commits. The prompt asks the model to summarize the changes and group them into logical categories. The AI returns a single, well-formatted markdown text block representing the complete changelog. 4. GitHub Release Creation The final GitHub node takes the AI-generated markdown. It creates a new GitHub Release, using the tag from the webhook as the release version and the AI-generated text as the release body/description. 🛠️ Setup Steps & Credentials To get this workflow running, you will need to configure the following credentials and settings: GitHub: You need a GitHub Personal Access Token with repo scope to allow n8n to access your repository. Create a GitHub OAuth2 Api or GitHub Api credential in n8n. Assign this credential to the Get Commits and Create GitHub Release nodes. In the Webhook node, copy the Test URL and add it as a new webhook in your GitHub repository's settings (Settings > Webhooks). Set the content type to application/json and select "Just the push event" or "Send me everything," then filter for tag pushes in the workflow itself. AI Provider (OpenAI / Gemini): Obtain an API Key from your chosen AI provider (e.g., platform.openai.com or aistudio.google.com). Create the corresponding credential in n8n (e.g., OpenAI API or Google Gemini(PaLM) Api). Assign this credential to the Generate Changelog with AI node. 💡 Customization & Learning This workflow is a powerful base that you can easily extend: Refine the AI Prompt:** Modify the prompt in the Generate Changelog with AI node to change the tone, language, or structure of your release notes. You could ask it to generate a "What's New" section in a different style, for example. Add Notifications:** Extend the workflow by adding a Discord or Slack node after the final step to notify your team or community channel that a new version has been released. Support Different Git Providers:** Swap the GitHub nodes for GitLab or other provider nodes to adapt the workflow to a different platform. Experiment with Models:** Try different AI models (e.g., GPT-4 vs. GPT-3.5-Turbo, or different Gemini versions) to see how it affects the quality and cost of your generated changelogs. An n8n automation workflow template by Issam AGGOUR.
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