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added the ability to initiate a plex library scan from the CLI. tab completions are supported as well.
This commit is contained in:
Peter Wood
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completions/plex-completion-implementation.md
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273
completions/plex-completion-implementation.md
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# Plex Scripts Bash Completion Implementation
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## Overview
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Implemented comprehensive bash completion for all Plex-related scripts to provide intelligent tab completion functionality. The completion system supports both the main `plex.sh` script and the new `scan-plex-libraries.sh` scanner script, along with all related aliases.
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## Implementation Details
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### New Completion Script
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**File**: `/home/acedanger/shell/completions/plex-scripts-completion.bash`
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**Features Implemented**:
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- ✅ **plex.sh Command Completion**: Complete main commands (start, stop, restart, status, scan, repair, nuclear, help)
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- ✅ **Scanner Sub-command Completion**: When using `plex.sh scan`, completes with scanner commands
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- ✅ **Direct Scanner Completion**: Complete commands for `scan-plex-libraries.sh`
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- ✅ **Option Completion**: Complete flags like `-v`, `--verbose`, `-h`, `--help`
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- ✅ **Boolean Flag Completion**: For `refresh` and `analyze` commands, completes with `true`/`false`
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- ✅ **Alias Support**: Completion for all plex-related aliases
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- ✅ **Path-based Completion**: Works with relative and absolute paths
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- ✅ **Advanced Features**: Optional library section ID completion (with timeout protection)
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### Supported Scripts and Aliases
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#### Main Scripts
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- `plex.sh` - Main Plex management script
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- `scan-plex-libraries.sh` - Library scanner script
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- `./plex.sh` - Relative path execution
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- `/home/acedanger/shell/plex/plex.sh` - Absolute path execution
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#### Aliases
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- `plex` - Main plex script
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- `px` - Quick shortcut for plex script
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- `plex-start` - Direct start command
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- `plex-stop` - Direct stop command
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- `plex-restart` - Direct restart command
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- `plex-status` - Direct status command
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- `plex-scan` - Scanner via plex.sh
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- `plex-scanner` - Direct scanner access
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### Completion Examples
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#### plex.sh Commands
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```bash
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$ plex.sh <TAB>
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start stop restart status scan repair nuclear help
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$ plex.sh s<TAB>
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start status scan
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$ plex.sh scan <TAB>
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list scan refresh analyze generate tree interactive -v --verbose -h --help
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```
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#### Scanner Commands
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```bash
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$ scan-plex-libraries.sh <TAB>
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list scan refresh analyze generate tree interactive
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$ scan-plex-libraries.sh -<TAB>
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-v --verbose -h --help
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$ scan-plex-libraries.sh refresh 29 <TAB>
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true false
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$ scan-plex-libraries.sh analyze 29 <TAB>
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true false
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```
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#### Alias Completion
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```bash
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$ plex-scan <TAB>
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list scan refresh analyze generate tree interactive
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$ plex-scanner <TAB>
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list scan refresh analyze generate tree interactive
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```
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## Installation Integration
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### Setup Scripts Updated
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#### bootstrap.sh
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```bash
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# Added plex completion to executable permissions
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chmod +x "$DOTFILES_DIR/completions/plex-scripts-completion.bash" 2>/dev/null || true
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```
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#### setup.sh
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```bash
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# Enhanced completion installation section
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# - Installs backup, plex, and environment backup completions
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# - Creates ~/.local/share/bash-completion/completions/ directory
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# - Copies and makes completion scripts executable
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```
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#### .zshrc
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```bash
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# Added plex completion loading
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if [ -f "$HOME/shell/completions/plex-scripts-completion.bash" ]; then
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source "$HOME/shell/completions/plex-scripts-completion.bash"
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fi
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```
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### Manual Installation
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For immediate testing or manual setup:
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```bash
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# Enable bash completion in zsh
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autoload -U +X bashcompinit && bashcompinit
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autoload -U compinit && compinit -u
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# Source the completion script
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source /home/acedanger/shell/completions/plex-scripts-completion.bash
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```
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## Advanced Features
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### Context-Aware Completion
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The completion system is context-aware and provides different suggestions based on:
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- **Command Position**: Different completions for first argument vs subsequent arguments
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- **Previous Word**: When previous word is specific command, shows relevant options
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- **Script Type**: Different behavior for main plex.sh vs scanner script
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### Intelligent Boolean Completion
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For commands that accept boolean flags:
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```bash
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# Refresh with force flag
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$ scan-plex-libraries.sh refresh 29 <TAB>
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true false
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# Analyze with deep flag
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$ scan-plex-libraries.sh analyze 29 <TAB>
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true false
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```
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### Optional Section ID Completion
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The completion script includes an advanced feature (commented out by default) that can:
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- Connect to the running Plex server
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- Retrieve actual library section IDs
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- Provide them as completion options
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- Include timeout protection to prevent hanging
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To enable:
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```bash
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# Uncomment this line in the completion script:
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# complete -F _plex_scanner_with_sections plex-scanner
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```
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### Helper Functions
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#### _plex_list_sections
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Manual function to list available library sections:
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```bash
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$ _plex_list_sections
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Available Plex library sections:
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29: Movies
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30: TV Shows
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31: Music
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```
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## Error Handling and Safety
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### Timeout Protection
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- Advanced section ID completion includes 3-second timeout
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- Prevents hanging if Plex server is unresponsive
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- Gracefully falls back to basic completion
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### Service Validation
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- Checks if completion functions exist before calling
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- Handles missing scripts gracefully
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- Provides meaningful fallbacks
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### Cross-Shell Compatibility
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- Works in both bash and zsh
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- Uses bash completion compatibility mode in zsh
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- Handles shell-specific export differences
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## Testing and Validation
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### Manual Testing
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```bash
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# Test basic completion
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source /home/acedanger/shell/completions/plex-scripts-completion.bash
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# Test with specific commands
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complete -p plex.sh
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complete -p scan-plex-libraries.sh
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complete -p plex-scan
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```
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### Integration Testing
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- Completion works after setup script execution
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- Aliases receive appropriate completion
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- Path-based execution maintains completion
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- No conflicts with existing backup script completion
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## Documentation Updates
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### Updated Files
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1. **completions/README.md**: Added comprehensive Plex completion documentation
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2. **completions/plex-scripts-completion.bash**: New completion script
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3. **setup/setup.sh**: Enhanced completion installation
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4. **setup/bootstrap.sh**: Added plex completion to executable permissions
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5. **dotfiles/.zshrc**: Added plex completion loading
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### Documentation Sections Added
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- Plex Management Scripts section in completions README
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- Usage examples with all plex commands
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- Installation instructions including manual setup
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- Troubleshooting information
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## Benefits
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### User Experience
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- **Faster Command Entry**: Tab completion reduces typing
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- **Discovery**: Users can discover available commands via tab
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- **Error Prevention**: Reduces command typos and invalid options
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- **Consistency**: Same completion experience across all scripts
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### Developer Experience
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- **Maintainable**: Completion logic is well-documented and modular
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- **Extensible**: Easy to add new commands or options
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- **Robust**: Handles edge cases and errors gracefully
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- **Standard**: Follows bash completion best practices
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### Integration Benefits
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- **Seamless**: Works with existing alias system
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- **Automatic**: Installed by setup scripts
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- **Compatible**: Works with both direct script calls and aliases
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- **Flexible**: Supports multiple invocation methods
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## Future Enhancements
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### Potential Improvements
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1. **Dynamic Section IDs**: Enable real-time library section completion
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2. **File Path Completion**: For commands that accept file paths
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3. **History-based Completion**: Remember frequently used section IDs
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4. **Custom Completions**: User-configurable completion preferences
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5. **Performance Optimization**: Cache completion data for faster response
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### Extensibility Points
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- Easy to add new commands to existing completion functions
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- Modular design allows for script-specific completion logic
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- Helper functions can be extended for more intelligence
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- Integration points for future plex-related scripts
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## Best Practices Followed
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### Code Quality
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- **Modular Functions**: Separate completion functions for each script
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- **Error Handling**: Graceful fallbacks and error prevention
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- **Documentation**: Comprehensive inline comments
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- **Consistency**: Follows existing completion script patterns
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### Performance
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- **Minimal Overhead**: Fast completion without unnecessary processing
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- **Timeout Protection**: Prevents blocking on slow operations
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- **Efficient Logic**: Optimized completion tree traversal
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- **Resource Conscious**: Minimal memory and CPU usage
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### Compatibility
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- **Shell Agnostic**: Works in bash and zsh
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- **Path Independent**: Handles various script invocation methods
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- **Version Safe**: Compatible with different bash completion versions
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- **System Independent**: Works across different Linux distributions
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## Conclusion
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The Plex scripts bash completion implementation provides a comprehensive, user-friendly tab completion system that enhances the command-line experience for all Plex-related operations. The system is well-integrated with the existing shell setup, follows best practices, and provides room for future enhancements while maintaining backward compatibility.
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