Add Custom PKGBUILD Repositories Support

[skorotkiewicz]

Summary

This PR implements comprehensive support for custom PKGBUILD repositories in yay, allowing users to configure and manage private, organization-specific, or local package collections that integrate seamlessly with yay's existing search and installation workflows.

Features Added

🏗️ Core Infrastructure

• Repository Types: Support for local filesystem, Git, and HTTP-based PKGBUILD repositories
• Configuration Management: Extended ~/.config/yay/config.json with customRepos array
• Repository Manager: Centralized management system with search, update, and package retrieval capabilities
• PKGBUILD Parser: Robust parsing of PKGBUILD files with dependency extraction and validation

🔍 Search Integration

• Unified Search: Custom repositories appear alongside AUR and official repositories in search results
• Repository-Specific Search: New repo/package syntax (e.g., yay -Ss aur/mama, yay -Ss core/linux)
• Priority System: Configurable search priority for custom repositories
• Source Indication: Clear labeling of package sources in search results

📦 Installation Workflow

• Dependency Resolution: Custom repository packages integrated into yay's dependency graph
• Build Process: Seamless building and installation of custom repository packages
• Read-Only Support: Automatic copying of PKGBUILDs from read-only repositories to build directory
• Git Integration: Proper Git repository initialization for custom packages

⚙️ CLI Management

• Repository Commands:
  • --repo-add=name,type,url/path - Add custom repository
  • --repo-remove=name - Remove custom repository
  • --repo-list - List all configured repositories
  • --repo-update - Update all custom repositories
• Early Command Handling: Repository management commands work without requiring sudo

🔧 Configuration & Migration

• Backward Compatibility: Automatic migration of existing configurations
• Authentication Support: SSH keys, tokens, and basic auth for private repositories
• Validation: Comprehensive configuration validation and error handling

Repository Types Supported

📁 Local Repositories

{
  "name": "local-packages",
  "type": "local", 
  "path": "/path/to/pkgbuilds",
  "searchable": true,
  "priority": 1
}

🌐 Git Repositories

{
  "name": "github-test",
  "type": "git",
  "url": "https://github.com/skorotkiewicz/test-repo",
  "branch": "main",
  "searchable": true,
  "priority": 2,
  "auth": {
    "type": "token",
    "token": "ghp_..."
  }
}

🌍 HTTP Repositories

{
  "name": "http-repo",
  "type": "http", 
  "url": "https://example.com/pkgs/",
  "searchable": true,
  "priority": 3
}

Usage Examples

Search Commands

# Search all repositories
yay -Ss firefox

# Search specific repository
yay -Ss core/linux
yay -Ss aur/yay
yay -Ss github-test/mama

# List custom repositories
yay --repo-list

Repository Management

# Add repositories
yay --repo-add=local-packages,local,/home/user/pkgs
yay --repo-add=github-test,git,https://github.com/skorotkiewicz/test-repo

# Update repositories
yay --repo-update

# Remove repository
yay --repo-remove=github-test

Installation

# Install from custom repository
yay -S github-test/mama

# Install with dependency resolution
yay -S local-packages/myapp

Technical Implementation

Key Files Added/Modified

• pkg/customrepo/ - Complete custom repository package
• pkg/settings/config.go - Extended configuration structure
• pkg/query/query_builder.go - Search integration
• pkg/dep/dep_graph.go - Dependency resolution
• pkg/sync/workdir/preparer.go - Build process integration
• main.go - CLI command handling

Architecture Highlights

• Interface-Based Design: Clean separation between repository types
• Context-Aware Operations: Proper cancellation and timeout handling
• Error Resilience: Graceful handling of repository failures
• Performance Optimized: Efficient caching and update mechanisms

Testing

• ✅ Unit tests for repository management
• ✅ Integration tests for search functionality
• ✅ Build process validation
• ✅ Configuration migration testing
• ✅ CLI command verification

Backward Compatibility

• ✅ Existing configurations automatically migrated
• ✅ No breaking changes to existing functionality
• ✅ All existing commands continue to work unchanged

Security Considerations

• 🔐 Secure credential storage in configuration
• 🔐 Support for SSH key authentication
• 🔐 Token-based authentication for private repositories
• 🔐 Validation of repository URLs and paths

Documentation

• 📚 Comprehensive README with usage examples
• 📚 Configuration reference documentation
• 📚 Migration guide for existing users

Future Enhancements

• 🔮 Support for additional repository types (FTP, S3, etc.)
• 🔮 Repository signing and verification
• 🔮 Advanced caching strategies
• 🔮 Repository health monitoring

[fsmv]

Hi does this work with https://github.com/archlinux/aur.git like this post describes? https://archlinux.org/news/recent-services-outages/