chore: release GPT Changelog workflow

[ferr3ira-gabriel]

Summary

Release GPT Changelog reusable workflow to main branch.

Features

• AI-powered changelog generation using OpenRouter API (GPT-4o)
• Single-app and monorepo support
• Stable releases only mode (skip beta/rc/alpha)
• Per-app CHANGELOG.md files
• GPG-signed commits with [skip ci]
• Sync PR to develop branch
• Slack notifications

Fixes from Code Review

• Script injection vulnerability fixed (uses env block)
• Subshell pitfall fixed (process substitution)
• API timeout and HTTP error handling
• GPG signing for conflict resolution commits
• PR list checks only open PRs
• Regex metacharacter escaping for app names
• GitHub noreply email format comment corrected

Documentation

• Added docs/gptchangelog-workflow.md
• Updated README.md with workflow reference

Summary by CodeRabbit

• New Features

  • Automated changelog generation using AI for single-app and monorepo setups with GitHub Release integration and Slack notifications.

• Documentation

  • Added comprehensive GPT Changelog workflow documentation.
  • Updated README with GPT Changelog feature overview and key capabilities.

• Chores

  • Updated .gitignore configuration.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This pull request introduces a new reusable GitHub Actions workflow for automated per-app changelog generation using GPT/OpenRouter. The workflow detects stable tags, identifies relevant commits, extracts contributors, and generates structured changelog entries via API calls. It supports both single-app and monorepo modes, creates or updates per-app CHANGELOG.md files, publishes GitHub Release notes, creates pull requests for changelog updates, and optionally syncs changes to a develop branch with Slack notifications. Supporting changes modify the release workflow to skip processing when commits are changelog-related and add configuration documentation and .gitignore entries.

Sequence Diagram(s)

sequenceDiagram
    participant GitHub as GitHub <br/>(Events)
    participant Runner as Runner <br/>(Workflow)
    participant API as OpenRouter <br/>(GPT API)
    participant GHApi as GitHub API <br/>(Releases/PRs)
    participant Slack as Slack <br/>(Notifications)

    GitHub->>Runner: Tag push or workflow_run trigger
    activate Runner
    Runner->>Runner: Detect stable tags & build app matrix
    Note over Runner: Parse tag, validate on<br/>default branch, check<br/>stable_releases_only
    
    rect rgb(200, 220, 240)
    Note over Runner: Per-app processing loop
    Runner->>Runner: Identify latest & previous stable tags
    Runner->>GHApi: Collect commits touching app
    Runner->>Runner: Extract contributors from commits
    end
    
    rect rgb(240, 220, 200)
    Note over Runner: Changelog generation
    Runner->>API: Call OpenRouter with commit data
    API-->>Runner: Return formatted changelog content
    Runner->>Runner: Prepend to CHANGELOG.md
    end
    
    rect rgb(220, 240, 200)
    Note over Runner: Release & PR flow
    Runner->>GHApi: Update GitHub Release notes
    Runner->>GHApi: Create/update PR for changelog changes
    opt If sync to develop enabled
        Runner->>GHApi: Create sync PR (develop branch)
    end
    end
    
    Runner->>Slack: Notify workflow status
    Runner->>Slack: Notify sync PR creation (if applicable)
    deactivate Runner

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Possibly related PRs

• feat: add GPTChangelog reusable workflow #67 — Directly adds the same GPT Changelog reusable workflow (gptchangelog.yml) and documentation.
• release: enhanced Go workflows with monorepo support and Slack notifications #24 — Modifies .github/workflows/release.yml to integrate with changelog generation logic.
• chore: dependency updates #56 — Also modifies release.yml workflow to handle release-related changes and action version updates.

Suggested labels

30 min review

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📥 Commits

Reviewing files that changed from the base of the PR and between 08614ee and cf0bf59.

📒 Files selected for processing (5)

• .github/workflows/gptchangelog.yml
• .github/workflows/release.yml
• .gitignore
• README.md
• docs/gptchangelog-workflow.md

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