Files
LEDMatrix/scripts/utils
Chuck 1833e30c1d Feature/wifi setup improvements (#187)
* fix: Handle permission errors when removing plugin directories

- Added _safe_remove_directory() method to handle permission errors gracefully
- Fixes permissions on __pycache__ directories before removal
- Updates uninstall_plugin() and install methods to use safe removal
- Resolves [Errno 13] Permission denied errors during plugin install/uninstall

* feat(wifi): Add grace period for AP mode and improve setup documentation

- Add 90-second grace period (3 checks at 30s intervals) before enabling AP mode
- Change AP to open network (no password) for easier initial setup
- Add verification script for WiFi setup
- Update documentation with grace period details and open network info
- Improve WiFi monitor daemon logging and error handling

* feat(wifi): Add Trixie compatibility and dynamic interface discovery

- Add dynamic WiFi interface discovery instead of hardcoded wlan0
  - Supports traditional (wlan0), predictable (wlp2s0), and USB naming
  - Falls back gracefully if detection fails

- Add Raspberry Pi OS Trixie (Debian 13) detection and compatibility
  - Detect Netplan configuration and connection file locations
  - Disable PMF (Protected Management Frames) on Trixie for better
    client compatibility with certain WiFi adapters

- Improve nmcli hotspot setup for Trixie
  - Add explicit IP configuration (192.168.4.1/24)
  - Add channel configuration to hotspot creation
  - Handle Trixie's default 10.42.0.1 IP override

- Add dnsmasq conflict detection
  - Warn if Pi-hole or other DNS services are using dnsmasq
  - Create backup before overwriting config

- Improve error handling
  - Replace bare except clauses with specific exceptions
  - All subprocess calls now have explicit timeouts

- Document sudoers requirements in module docstring
  - List all required NOPASSWD entries for ledpi user

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* refactor(wifi): Use NM_CONNECTIONS_PATHS constant in _detect_trixie

Replace hardcoded Path instances with references to the
NM_CONNECTIONS_PATHS constant for consistency.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(verify): Use ETH_CONNECTED and AP_ACTIVE in summary output

Add connectivity summary section that displays Ethernet and AP mode
status using the previously unused ETH_CONNECTED and AP_ACTIVE flags.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-19 16:43:02 -05:00
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Utility Scripts

This directory contains utility scripts for maintenance and system operations.

Scripts

  • clear_cache.py - Clears LEDMatrix cache data (specific keys or all cache)
  • start_web_conditionally.py - Conditionally starts the web interface based on config settings
  • wifi_monitor_daemon.py - Background daemon that monitors WiFi/Ethernet connection and manages access point mode
  • cleanup_venv.sh - Cleans up Python virtual environment files
  • clear_python_cache.sh - Clears Python cache files (pycache, *.pyc, etc.)

Usage

Clear Cache

python3 scripts/utils/clear_cache.py --list          # List cache keys
python3 scripts/utils/clear_cache.py --clear-all      # Clear all cache
python3 scripts/utils/clear_cache.py --clear <key>    # Clear specific key

Start Web Interface Conditionally

This script is typically called by the systemd service (ledmatrix-web.service) and checks the web_display_autostart setting in config/config.json before starting the web interface.

WiFi Monitor Daemon

This daemon is typically run as a systemd service (ledmatrix-wifi-monitor.service) and automatically manages WiFi access point mode based on network connectivity.