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150 lines
5 KiB
Markdown
150 lines
5 KiB
Markdown
# Template Refactoring Summary
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## Overview
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This document summarizes the refactoring improvements made to the RDE (Research Development Environment) template flake.
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## Changes Made
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### 1. File Structure Reorganization
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**Before**: Single 688-line `flake.nix` file
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**After**: Modular structure with 17 files across 5 directories
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```
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templates/rde/
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├── flake.nix (261 lines) - Main configuration
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├── README.md - User documentation
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├── REFACTORING.md - This file
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├── overlays/ (5 files)
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│ ├── r.nix - R package configuration
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│ ├── python.nix - Python package configuration
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│ ├── rix.nix - rstats-on-nix integration
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│ ├── theme.nix - Neovim theme setup
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│ └── project-scripts.nix - Script wrapper definitions
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├── hosts/ (5 files)
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│ ├── default.nix - Merges all host configs
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│ ├── python.nix - Python command definitions
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│ ├── julia.nix - Julia command definitions
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│ ├── r.nix - R command definitions
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│ └── utils.nix - Utility command definitions
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├── lib/ (2 files)
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│ ├── shell-hook.nix - Dev shell welcome message
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│ └── mini-notify-config.lua - Neovim notification config
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└── scripts/ (4 files)
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├── initPython.sh - Python project initialization
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├── initProject.sh - Project structure setup
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├── updateDeps.sh - Dependency update script
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└── activateDevenv.sh - Devenv activation
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```
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### 2. Key Improvements
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#### Separation of Concerns
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- **Config**: Main configuration stays in flake.nix
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- **Overlays**: Package modifications isolated in overlays/
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- **Hosts**: Command definitions organized by language in hosts/
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- **Scripts**: Shell scripts extracted to scripts/ directory
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- **Helpers**: Utility functions in lib/
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#### Readability
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- Reduced main file from 688 to 261 lines (62% reduction)
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- Added strategic comments explaining key sections
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- Extracted long inline strings to separate files
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- Grouped related functionality together
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#### Maintainability
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- Language-specific changes isolated to dedicated files
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- Easy to add new languages (create new host/overlay files)
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- Easy to modify scripts without touching Nix code
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- Clear separation between different concerns
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#### Reusability
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- Individual overlays can be reused in other projects
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- Host definitions can be copied/modified independently
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- Scripts can be tested/modified separately
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- Modular design allows selective adoption
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### 3. Specific Extractions
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#### Shell Scripts (200+ lines → 4 files)
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- `initPython.sh`: Python project initialization logic
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- `initProject.sh`: Directory structure and git setup
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- `updateDeps.sh`: Dependency update automation
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- `activateDevenv.sh`: Devenv shell activation
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#### Overlays (100+ lines → 5 files)
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- `r.nix`: R package management with rix integration
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- `python.nix`: Python package configuration
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- `rix.nix`: rstats-on-nix package source
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- `theme.nix`: Neovim colorscheme handling
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- `project-scripts.nix`: Script wrapper generation
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#### Host Definitions (200+ lines → 5 files)
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- `python.nix`: marimo, ipy, py, initPython commands
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- `julia.nix`: jl, pluto, initJl commands
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- `r.nix`: R console command
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- `utils.nix`: initProject, updateDeps, devenv commands
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- `default.nix`: Merges all host configurations
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#### Helper Functions (40+ lines → 2 files)
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- `shell-hook.nix`: Dev shell welcome message generation
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- `mini-notify-config.lua`: Neovim notification filtering
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### 4. Added Documentation
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#### README.md
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- Overview of template purpose
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- Directory structure explanation
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- Benefits of modular design
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- Configuration instructions
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- Extension guidelines
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- Usage examples
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#### Inline Comments
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- Section headers in flake.nix
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- Explanation of key configuration blocks
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- Purpose of each import
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- Documentation of categories and settings
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### 5. Benefits Achieved
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1. **Maintainability**:
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- Changes to one language don't affect others
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- Easy to locate and modify specific functionality
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- Clear ownership of different components
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2. **Readability**:
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- Main file is now scannable and understandable
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- Related code grouped together
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- Inline documentation guides users
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3. **Testability**:
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- Scripts can be tested independently
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- Overlays can be verified in isolation
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- Smaller files are easier to debug
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4. **Extensibility**:
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- Clear patterns for adding new languages
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- Easy to add new commands
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- Simple to customize per language
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5. **Learning**:
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- New users can understand the template structure
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- Examples in each file guide modifications
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- Documentation explains purpose and usage
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## Migration Guide
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For users of the old template:
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1. The functionality remains identical
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2. Configuration in the main config section is the same
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3. All commands work exactly as before
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4. To customize, now edit the specific file in the appropriate directory
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## Future Improvements
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Possible future enhancements:
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- Add validation scripts for configuration
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- Create unit tests for individual modules
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- Add more language examples (Go, Rust, etc.)
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- Create a configuration wizard script
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- Add CI/CD integration examples
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