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feat: add CodeRabbit automation improvements and AST-based handlers (#39)
* feat: add CodeRabbit automation improvements and AST-based handlers ## 🚀 CodeRabbit Automation Improvements This commit adds comprehensive improvements to the CodeRabbit suggestion automation system to prevent structural file issues and provide better handling of JSON, YAML, and TOML files. ### 📋 Changes Made #### **Documentation** - ✅ **automation-improvements.md**: Comprehensive guide for CodeRabbit automation improvements - ✅ **Problem analysis**: Documents the package.json duplication issue and solution - ✅ **Architecture overview**: Explains AST-based transformation approach - ✅ **Implementation guide**: Step-by-step instructions for future improvements #### **AST-Based File Handlers** - ✅ **JSON Handler**: Prevents duplicate keys and validates JSON structure - ✅ **YAML Handler**: Handles YAML files with proper structure validation - ✅ **TOML Handler**: Manages TOML files with semantic validation - ✅ **Modular Design**: Each handler is independent and testable #### **Testing & Validation** - ✅ **test_json_handler.py**: Working test suite for JSON handler functionality - ✅ **Duplicate Prevention**: Validates that duplicate key issues are prevented - ✅ **File Structure**: Ensures proper JSON structure is maintained - ✅ **Proper Organization**: Test file in correct tests/ directory #### **Configuration Updates** - ✅ **Ruff Configuration**: Added T20 (print statements) to per-file-ignores for test files - ✅ **Code Quality**: All linting and formatting standards met ### 🎯 Benefits 1. **Prevents File Corruption**: AST-based approach prevents structural issues 2. **Better Error Handling**: Semantic validation catches problems early 3. **Maintainable Code**: Modular handlers are easy to extend and test 4. **Comprehensive Documentation**: Guide for future automation improvements ### 🧪 Testing - ✅ JSON handler tests pass - ✅ Duplicate key prevention verified - ✅ File structure validation working - ✅ All imports functional This addresses the package.json duplication issue and provides a robust foundation for future CodeRabbit automation improvements. * test: add comprehensive test coverage for YAML and TOML handlers ## 🧪 Enhanced Test Coverage This commit addresses the Codecov coverage report by adding comprehensive test suites for the YAML and TOML handlers. ### 📋 Changes Made #### **YAML Handler Tests** - ✅ **test_yaml_handler.py**: Complete test suite for YAML handler functionality - ✅ **Suggestion Application**: Tests YAML suggestion validation and application - ✅ **Structure Validation**: Ensures YAML structure is preserved during changes - ✅ **Error Handling**: Validates proper error handling for invalid suggestions #### **TOML Handler Tests** - ✅ **test_toml_handler.py**: Complete test suite for TOML handler functionality - ✅ **Suggestion Application**: Tests TOML suggestion validation and application - ✅ **Structure Validation**: Ensures TOML structure is preserved during changes - ✅ **Complex Structures**: Tests nested TOML configurations #### **Dependencies** - ✅ **types-PyYAML**: Added PyYAML type stubs for mypy compatibility - ✅ **requirements-dev.in**: Updated to include types-PyYAML dependency - ✅ **requirements-dev.txt**: Regenerated with new type stubs ### 🎯 Coverage Improvements - **YAML Handler**: Now has comprehensive test coverage - **TOML Handler**: Now has comprehensive test coverage - **Overall Coverage**: Significantly improved from 51.12% patch coverage - **Quality Assurance**: All handlers now have proper test validation ### 🧪 Testing - ✅ YAML handler tests pass - ✅ TOML handler tests pass - ✅ All test files follow project conventions - ✅ Print statements allowed in test files (T20 rule) - ✅ Type checking passes with proper stubs This addresses the Codecov coverage concerns and ensures all handlers have proper test coverage. * fix: add missing TOML dependencies (tomli, tomli-w) to requirements-dev - Added tomli>=2.0.0 and tomli-w>=1.0.0 to requirements-dev.in - Regenerated requirements-dev.txt with pip-compile - Fixes CI test failures for TOML handler tests - All handler tests now pass locally * fix: resolve import error in test_yaml_handler.py - Add type ignore comments for dynamic import resolution - Add noqa comments to suppress linter warnings for import ordering - Improve import formatting with multi-line structure - All tests now pass with no linting errors --------- Co-authored-by: Ben De Cock <[email protected]>
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‎docs/automation-improvements.md‎

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# CodeRabbit Automation Improvements
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## Overview
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This document describes the improvements made to the CodeRabbit suggestion automation system to prevent issues like the package.json duplication problem and provide better handling of structured files.
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## Problem Solved
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The original automation system (`scripts/apply_cr_suggestions.py`) treated all files as plain text and performed simple line-range replacements. This caused issues when CodeRabbit's suggestions were structural rewrites disguised as line replacements, leading to:
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- **Duplicate keys in JSON files** (like package.json)
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- **Malformed file structures**
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- **JSON parse errors**
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- **Loss of file formatting**
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## Solution: AST-Based Transformations
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### Architecture
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The new system uses a **hybrid approach**:
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1. **File-Type Detection**: Automatically detects file types (JSON, YAML, TOML, Python, TypeScript)
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2. **Specialized Handlers**: Routes suggestions to appropriate handlers based on file type
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3. **AST-Based Processing**: Uses structured parsing for JSON/YAML/TOML files
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4. **Validation**: Pre-validates suggestions before application
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5. **Fallback**: Uses original plaintext method for unsupported file types
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### File Type Support
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| File Type | Handler | Features |
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|-----------|---------|----------|
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| JSON | `json_handler.py` | Duplicate key detection, smart merging, validation |
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| YAML | `yaml_handler.py` | Comment preservation, structure validation |
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| TOML | `toml_handler.py` | Structure validation, proper formatting |
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| Python/TypeScript | Original method | Line-range replacements |
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| Other | Original method | Plaintext processing |
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## Implementation Details
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### Core Components
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#### 1. File Type Detection (`apply_cr_suggestions.py`)
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```python
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class FileType(Enum):
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PYTHON = "python"
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TYPESCRIPT = "typescript"
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JSON = "json"
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YAML = "yaml"
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TOML = "toml"
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PLAINTEXT = "plaintext"
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def detect_file_type(path: str) -> FileType:
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"""Detect file type from extension."""
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suffix = pathlib.Path(path).suffix.lower()
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mapping = {
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".py": FileType.PYTHON,
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".ts": FileType.TYPESCRIPT,
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".tsx": FileType.TYPESCRIPT,
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".js": FileType.TYPESCRIPT,
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".jsx": FileType.TYPESCRIPT,
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".json": FileType.JSON,
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".yaml": FileType.YAML,
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".yml": FileType.YAML,
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".toml": FileType.TOML,
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}
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return mapping.get(suffix, FileType.PLAINTEXT)
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```
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#### 2. Suggestion Routing
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```python
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def route_suggestion(file_type: FileType, path: str, suggestion: str,
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start_line: int, end_line: int) -> bool:
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"""Route suggestion to appropriate handler."""
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if file_type == FileType.JSON:
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return apply_json_suggestion(path, suggestion, start_line, end_line)
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elif file_type == FileType.YAML:
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return apply_yaml_suggestion(path, suggestion, start_line, end_line)
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elif file_type == FileType.TOML:
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return apply_toml_suggestion(path, suggestion, start_line, end_line)
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else:
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return apply_plaintext_suggestion(path, suggestion, start_line, end_line)
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```
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#### 3. JSON Handler Features
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- **Duplicate Key Detection**: Prevents duplicate keys in JSON objects
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- **Smart Merging**: Intelligently merges suggestions with existing content
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- **Validation**: Pre-validates JSON structure before application
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- **Formatting**: Preserves proper JSON formatting
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```python
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def has_duplicate_keys(obj: Any) -> bool:
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"""Check for duplicate keys in JSON object."""
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if isinstance(obj, dict):
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keys = list(obj.keys())
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if len(keys) != len(set(keys)):
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return True
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return any(has_duplicate_keys(v) for v in obj.values())
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elif isinstance(obj, list):
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return any(has_duplicate_keys(item) for item in obj)
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return False
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```
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## Usage
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### Basic Usage
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The system works transparently with the existing workflow:
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```bash
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# Preview suggestions (with validation)
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make pr_suggest_preview
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# Apply suggestions (with AST-based processing)
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make pr_suggest_apply
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# Validate suggestions without applying
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python scripts/apply_cr_suggestions.py --validate
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```
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### Validation Mode
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The new `--validate` flag allows checking suggestions without applying them:
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```bash
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python scripts/apply_cr_suggestions.py --validate
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```
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This will:
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- Parse all suggestions
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- Validate JSON/YAML/TOML structure
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- Report any issues
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- **Not modify any files**
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### File Type Examples
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#### JSON Files (package.json, tsconfig.json, etc.)
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```json
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// Before: Simple line replacement would create duplicates
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{
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"name": "@contextforge/memory-client",
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"version": "0.1.0",
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"type": "module"
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}
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// CodeRabbit suggestion (complete rewrite)
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{
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"name": "@contextforge/memory-client",
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"version": "0.1.0",
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"type": "module",
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"main": "dist/index.cjs",
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"exports": { ... }
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}
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// After: Smart merge preserves structure
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{
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"name": "@contextforge/memory-client",
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"version": "0.1.0",
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"type": "module",
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"main": "dist/index.cjs",
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"exports": { ... }
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}
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```
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#### YAML Files (.github/workflows/*.yml, etc.)
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- Preserves comments and formatting
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- Validates YAML structure
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- Handles complex nested structures
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#### TOML Files (pyproject.toml, etc.)
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- Validates TOML syntax
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- Preserves formatting
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- Handles table structures
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## Benefits
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### 1. Prevents Structural Issues
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- **No more duplicate keys** in JSON files
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- **No more malformed structures**
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- **Proper file formatting** preserved
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### 2. Better Error Handling
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- **Pre-validation** catches issues before application
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- **Clear error messages** for validation failures
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- **Automatic rollback** on errors
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### 3. Improved Reliability
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- **File-type aware** processing
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- **AST-based** transformations
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- **Semantic validation**
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### 4. Backward Compatibility
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- **Existing workflow** unchanged
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- **Fallback** to original method for unsupported files
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- **No breaking changes**
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## Testing
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### Test Suite
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The system includes comprehensive tests:
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```bash
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# Run all handler tests
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python -m pytest tests/test_suggestion_handlers.py -v
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# Test specific functionality
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python -m pytest tests/test_suggestion_handlers.py::TestJSONHandler -v
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```
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### Test Coverage
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- **JSON handler**: Duplicate key detection, smart merging, validation
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- **File type detection**: All supported file types
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- **Routing system**: Correct handler selection
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- **Package.json fix**: Specific regression test
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## Dependencies
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### New Dependencies
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Added to `requirements-dev.in`:
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```
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# AST-based suggestion handlers
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ruamel.yaml>=0.18.0
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tomli>=2.0.0
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tomli-w>=1.0.0
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```
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### Installation
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```bash
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# Install new dependencies
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pip install -r requirements-dev.txt
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# Or install specific packages
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pip install ruamel.yaml tomli tomli-w
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```
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## Configuration
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### Handler Configuration
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Handlers can be configured in `scripts/handlers/`:
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- `json_handler.py`: JSON-specific processing
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- `yaml_handler.py`: YAML-specific processing
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- `toml_handler.py`: TOML-specific processing
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### Validation Settings
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Validation can be customized per file type in the handler files.
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## Troubleshooting
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### Common Issues
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1. **Handlers not available**: Install required dependencies
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2. **Import errors**: Check Python path configuration
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3. **Validation failures**: Review suggestion format
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### Debug Mode
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Enable debug output by setting environment variables:
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```bash
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export DEBUG_HANDLERS=1
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python scripts/apply_cr_suggestions.py --preview
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```
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## Future Enhancements
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### Planned Features
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1. **More file types**: Support for XML, INI, etc.
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2. **Advanced merging**: Conflict resolution strategies
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3. **Custom validators**: Project-specific validation rules
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4. **Performance optimization**: Caching and parallel processing
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### Extension Points
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The system is designed for easy extension:
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- Add new file types in `detect_file_type()`
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- Create new handlers in `scripts/handlers/`
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- Add validation rules in handler files
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## Conclusion
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The new AST-based automation system successfully prevents the package.json duplication issue and provides a robust foundation for handling CodeRabbit suggestions across different file types. The system maintains backward compatibility while adding powerful new capabilities for structured file processing.
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## References
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- [Original Issue Analysis](https://github.com/VirtualAgentics/ConextForge_memory/pull/36#discussion_r2455498994)
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- [CodeRabbit Suggestion Format](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/incorporating-feedback-in-your-pull-request)
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- [JSON Schema Validation](https://json-schema.org/)
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- [YAML Specification](https://yaml.org/spec/)
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- [TOML Specification](https://toml.io/)

‎pyproject.toml‎

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[tool.ruff.lint.per-file-ignores]
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"example_usage.py" = ["T20"]
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".github/scripts/analyze_vulnerabilities.py" = ["T20"]
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"tests/**/*.py" = ["S101"] # Allow assert statements in test files
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"**/test_*.py" = ["S101"] # Allow assert statements in test files
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"**/*_test.py" = ["S101"] # Allow assert statements in test files
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"tests/**/*.py" = ["S101", "T20"] # Allow assert statements and print in test files
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"**/test_*.py" = ["S101", "T20"] # Allow assert statements and print in test files
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"**/*_test.py" = ["S101", "T20"] # Allow assert statements and print in test files
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[tool.isort]
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profile = "black"

‎requirements-dev.in‎

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ruff>=0.1.0
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black>=23.0.0
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types-aiofiles>=24.1.0
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types-PyYAML>=6.0.0
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tomli>=2.0.0
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tomli-w>=1.0.0
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pip-tools>=7.0.0
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pyright>=1.1.0

‎requirements-dev.txt‎

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# via commitizen
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toml==0.10.2
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# via pip-audit
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tomli==2.3.0
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# via -r requirements-dev.in
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tomli-w==1.2.0
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# via -r requirements-dev.in
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tomlkit==0.13.3
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# via commitizen
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types-aiofiles==25.1.0.20251011
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# via -r requirements-dev.in
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types-pyyaml==6.0.12.20250915
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# via -r requirements-dev.in
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typing-extensions==4.15.0
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# via pyright
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urllib3==2.5.0

‎scripts/handlers/__init__.py‎

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"""
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File type handlers for applying CodeRabbit suggestions.
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This module provides specialized handlers for different file types,
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enabling AST-based transformations and semantic validation.
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"""
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from .json_handler import apply_json_suggestion, validate_json_suggestion
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from .yaml_handler import apply_yaml_suggestion, validate_yaml_suggestion
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from .toml_handler import apply_toml_suggestion, validate_toml_suggestion
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__all__ = [
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"apply_json_suggestion",
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"validate_json_suggestion",
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"apply_yaml_suggestion",
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"validate_yaml_suggestion",
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"apply_toml_suggestion",
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"validate_toml_suggestion",
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]

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