loregrep 0.3.3

Fast repository indexing and code analysis tools for AI coding assistants - 6 standardized tools for Claude, GPT, and more

Loregrep Python Package

Fast code analysis tools for AI coding assistants

Loregrep is a high-performance repository indexing library that uses tree-sitter parsing to analyze codebases. It provides 6 standardized tools that supply structured code data to AI systems like Claude, GPT, and other coding assistants.

Quick Start

Installation

pip install loregrep

Basic Usage

import asyncio
import loregrep

async def analyze_repository():
    # Create and configure analyzer
    lg = (loregrep.LoreGrep.builder()
          .max_file_size(1024 * 1024)  # 1MB limit
          .file_patterns(["*.py", "*.rs", "*.js", "*.ts"])
          .exclude_patterns(["node_modules/", "__pycache__/", "target/"])
          .build())
    
    # Scan your repository
    result = await lg.scan("/path/to/your/project")
    print(f"📁 Scanned {result.files_scanned} files")
    print(f"🔧 Found {result.functions_found} functions")
    print(f"📦 Found {result.structs_found} structures")
    
    # Search for functions
    functions = await lg.execute_tool("search_functions", {
        "pattern": "auth",
        "limit": 10
    })
    print("🔍 Authentication functions:")
    print(functions.content)
    
    # Get repository overview
    overview = await lg.execute_tool("get_repository_tree", {
        "include_file_details": True,
        "max_depth": 2
    })
    print("🌳 Repository structure:")
    print(overview.content)

# Run the analysis
asyncio.run(analyze_repository())

AI Integration

Loregrep provides 6 standardized tools that supply structured code data to AI coding assistants:

Available Tools

# Get all available tools
tools = loregrep.LoreGrep.get_tool_definitions()
for tool in tools:
    print(f"🛠️  {tool.name}: {tool.description}")

1. search_functions - Find functions by pattern

result = await lg.execute_tool("search_functions", {
    "pattern": "config",
    "limit": 20
})

2. search_structs - Find classes/structures by pattern

result = await lg.execute_tool("search_structs", {
    "pattern": "User",
    "limit": 10
})

3. analyze_file - Detailed analysis of specific files

result = await lg.execute_tool("analyze_file", {
    "file_path": "src/main.py",
    "include_source": False
})

4. get_dependencies - Find imports and exports

result = await lg.execute_tool("get_dependencies", {
    "file_path": "src/utils.py"
})

5. find_callers - Locate function call sites

result = await lg.execute_tool("find_callers", {
    "function_name": "authenticate_user"
})

6. get_repository_tree - Repository structure overview

result = await lg.execute_tool("get_repository_tree", {
    "include_file_details": True,
    "max_depth": 3
})

Configuration Options

Builder Pattern

loregrep_instance = (loregrep.LoreGrep.builder()
    # File size and depth limits
    .max_file_size(2 * 1024 * 1024)     # 2MB max file size
    .max_depth(15)                       # Max directory depth
    
    # File filtering
    .file_patterns(["*.py", "*.js", "*.ts", "*.rs"])
    .exclude_patterns([
        "node_modules/", "__pycache__/", "target/",
        ".git/", "venv/", ".env/"
    ])
    
    # Git integration
    .respect_gitignore(True)             # Honor .gitignore files
    
    .build())

Scan Results

result = await lg.scan("/path/to/repo")

# Access scan statistics
print(f"Files scanned: {result.files_scanned}")
print(f"Functions found: {result.functions_found}")
print(f"Structs found: {result.structs_found}")
print(f"Duration: {result.duration_ms}ms")
print(f"Errors: {result.errors}")  # List of any scan errors

How It Works

Core Technology

• Tree-sitter parsing: Fast, accurate syntax analysis (not AI)
• In-memory indexing: Quick lookups and search (not AI)
• Structured data extraction: Functions, classes, imports, etc. (not AI)

AI Integration

• Tool interface: 6 standardized tools that provide data to AI systems
• AI assistants: Use the structured data to answer questions about your code
• LLM compatibility: Works with Claude [Other integrations planned..]

Loregrep does the fast parsing and indexing - AI systems use that data to understand your code.

Language Support

Language	Status	Functions	Classes	Imports
Rust	✅ Full	✅	✅	✅
Python	🚧 Planned	-	-	-
TypeScript	🚧 Planned	-	-	-
JavaScript	🚧 Planned	-	-	-

Additional language support coming soon

Error Handling

try:
    result = await lg.scan("/invalid/path")
except OSError as e:
    print(f"Path error: {e}")
except RuntimeError as e:
    print(f"Analysis error: {e}")
except ValueError as e:
    print(f"Configuration error: {e}")

Async and Threading

Loregrep is fully async and thread-safe:

import asyncio

# Multiple concurrent operations
async def parallel_analysis():
    lg1 = loregrep.LoreGrep.builder().build()
    lg2 = loregrep.LoreGrep.builder().build()
    
    # Concurrent scanning
    results = await asyncio.gather(
        lg1.scan("/project1"),
        lg2.scan("/project2")
    )
    
    # Concurrent tool execution
    analyses = await asyncio.gather(
        lg1.execute_tool("search_functions", {"pattern": "api"}),
        lg2.execute_tool("get_repository_tree", {"max_depth": 2})
    )

Integration with AI Assistants

Claude/OpenAI Integration

# Get tool schemas for AI systems
tools = loregrep.LoreGrep.get_tool_definitions()

# Send to Claude/OpenAI as available tools
# When AI calls a tool, execute it:
result = await lg.execute_tool(tool_name, tool_args)

# Send result back to AI
ai_response = send_to_ai(result.content)

Example: Code Analysis Bot

async def code_analysis_bot(user_question: str, repo_path: str):
    lg = loregrep.LoreGrep.builder().build()
    await lg.scan(repo_path)
    
    if "functions" in user_question.lower():
        result = await lg.execute_tool("search_functions", {
            "pattern": extract_pattern(user_question),
            "limit": 10
        })
    elif "structure" in user_question.lower():
        result = await lg.execute_tool("get_repository_tree", {
            "include_file_details": True,
            "max_depth": 2
        })
    
    return f"Found: {result.content}"

Performance

• Scanning: ~1-2 seconds for medium repositories (1000+ files)
• Queries: ~50-100ms for most operations
• Memory: ~50MB for typical projects
• Concurrency: Thread-safe with multiple instances

Requirements

• Python 3.7+
• No external dependencies (uses native Rust extensions)

Examples

See the examples directory for complete working examples:

• basic_usage.py - Complete workflow demonstration
• test_bindings.py - Comprehensive test suite

License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.

Contributing

Contributions are welcome! Please see our contribution guidelines.