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* fix(install): don't let outer ERR trap mask first_time_install.sh failures set +e alone doesn't suppress bash's ERR trap, so any non-zero exit from first_time_install.sh inside the one-shot installer immediately triggered the outer on_error handler with a generic "Main installation, line 370" message — before the script could report the real exit code or point to logs/. Suspend the trap for that block so the existing if/else handling runs instead. * feat(install): surface root cause of web dependency install failures install_dependencies_apt.py previously reported only which packages failed, not why - the actual apt/pip error was discarded (apt) or could scroll out of the on_error log tail (pip), leaving "Step 7: Install web interface dependencies (line 915)" as the only visible detail. Capture command output for each install attempt and print a compact DEPENDENCY INSTALLATION FAILURES summary with the last lines of error output per package. Also run the installer with `python3 -u` for real-time, correctly-ordered logging, and widen the on_error tail from 50 to 100 lines so the summary isn't cut off. * feat(install): harden first-time install against common Pi failure modes - wait_for_apt_lock: apt_update/apt_install now wait (up to 3min) for unattended-upgrades to release the dpkg lock instead of failing outright with "Command failed after 3 attempts" right after first boot. - check_disk_space: new pre-flight check (Step 1) so a full SD card fails fast with a clear message instead of a cryptic mid-build error. - Step 6: wrap rpi-rgb-led-matrix git clone/submodule operations in retry for resilience to transient network issues. - Step 6: capture `pip install .` build output and print the last 50 lines on failure, so the actual cmake/compiler error is visible instead of just "Failed to install rpi-rgb-led-matrix Python package". * fix(install): bound subprocess output and dedupe apt update in dependency installer Address coderabbitai review on PR #369: - _run() now streams combined stdout/stderr to a temp file and returns only the last ERROR_TAIL_LINES lines, instead of buffering full output in memory (Codacy also flagged the previous capture_output call as a subprocess-without-static-string security issue; the new call is annotated as safe since cmd is built from hardcoded args). - `apt update` now runs once in main() instead of once per package needing an apt fallback. * fix(install): suppress remaining Codacy subprocess false-positive Codacy's Semgrep-based check still flagged the cmd-built subprocess.run call as "without a static string" even with the Bandit nosec applied. Add a nosemgrep marker alongside it - cmd is always a hardcoded apt/pip argument list, never user input. * fix(install): correctly detect already-installed dateutil/websocket-client Address remaining coderabbitai findings on PR #369: - check_package_installed() did __import__(package_name) directly, but python-dateutil and websocket-client import as dateutil/websocket. Both always failed the "already installed" check and were reinstalled on every run. Add an IMPORT_NAME_MAP for the mismatched names. - _run() still read the entire temp file into memory before slicing the tail. Stream it line-by-line into a deque(maxlen=ERROR_TAIL_LINES) instead so memory use stays bounded for very chatty commands. --------- Co-authored-by: Chuck <chuck@example.com>
Installation Scripts
This directory contains scripts for installing and configuring the LEDMatrix system.
Scripts
one-shot-install.sh- Single-command installer; clones the repo, checks prerequisites, then runsfirst_time_install.sh. Invoked viacurl ... | bashfrom the project root README.install_service.sh- Installs the main LED Matrix display service (systemd)install_web_service.sh- Installs the web interface service (systemd)install_wifi_monitor.sh- Installs the WiFi monitor daemon servicesetup_cache.sh- Sets up persistent cache directory with proper permissionsconfigure_web_sudo.sh- Configures passwordless sudo access for web interface actionsconfigure_wifi_permissions.sh- Grants theledmatrixuser the WiFi management permissions needed by the web interface and the WiFi monitor servicemigrate_config.sh- Migrates configuration files to new formats (if needed)debug_install.sh- Diagnostic helper used when an install fails; collects environment info and recent logs
Usage
These scripts are typically called by first_time_install.sh in the
project root (which itself is invoked by one-shot-install.sh), but
can also be run individually if needed.
Note: Most installation scripts require sudo privileges to install systemd services and configure system settings.