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.
This commit is contained in:
Chuck
2026-06-11 09:42:59 -04:00
parent 6ea9862c14
commit 6c9a3510ee
2 changed files with 120 additions and 81 deletions

View File

@@ -9,43 +9,54 @@ import sys
import warnings
from pathlib import Path
# How many trailing lines of a failed command's output to keep for the
# end-of-run failure summary. Keeps the root cause near the end of the log,
# which is where first_time_install.sh's error handler tails from.
ERROR_TAIL_LINES = 15
def _run(cmd):
"""Run a command, capturing combined stdout/stderr.
Returns (success, output) instead of raising, so callers can report
*why* a command failed rather than just that it failed.
"""
result = subprocess.run(cmd, capture_output=True, text=True)
return result.returncode == 0, (result.stdout or "") + (result.stderr or "")
def install_via_apt(package_name):
"""Try to install a package via apt."""
try:
# Map pip package names to apt package names
apt_package_map = {
'flask': 'python3-flask',
'PIL': 'python3-pil',
'freetype': 'python3-freetype',
'psutil': 'python3-psutil',
'werkzeug': 'python3-werkzeug',
'numpy': 'python3-numpy',
'requests': 'python3-requests',
'python-dateutil': 'python3-dateutil',
'pytz': 'python3-tz',
'geopy': 'python3-geopy',
'unidecode': 'python3-unidecode',
'websockets': 'python3-websockets',
'websocket-client': 'python3-websocket-client'
}
apt_package = apt_package_map.get(package_name, f'python3-{package_name}')
print(f"Trying to install {apt_package} via apt...")
subprocess.check_call([
'sudo', 'apt', 'update'
], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
subprocess.check_call([
'sudo', 'apt', 'install', '-y', apt_package
], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
"""Try to install a package via apt. Returns (success, output)."""
# Map pip package names to apt package names
apt_package_map = {
'flask': 'python3-flask',
'PIL': 'python3-pil',
'freetype': 'python3-freetype',
'psutil': 'python3-psutil',
'werkzeug': 'python3-werkzeug',
'numpy': 'python3-numpy',
'requests': 'python3-requests',
'python-dateutil': 'python3-dateutil',
'pytz': 'python3-tz',
'geopy': 'python3-geopy',
'unidecode': 'python3-unidecode',
'websockets': 'python3-websockets',
'websocket-client': 'python3-websocket-client'
}
apt_package = apt_package_map.get(package_name, f'python3-{package_name}')
print(f"Trying to install {apt_package} via apt...")
_run(['sudo', 'apt', 'update']) # best-effort refresh; ignore failures here
success, output = _run(['sudo', 'apt', 'install', '-y', apt_package])
if success:
print(f"Successfully installed {apt_package} via apt")
return True
except subprocess.CalledProcessError:
print(f"Failed to install {package_name} via apt, will try pip")
return False
return True, ""
print(f"Failed to install {apt_package} via apt, will try pip")
return False, output
def install_via_pip(package_name):
"""Install a package via pip with --break-system-packages and --prefer-binary.
@@ -54,17 +65,20 @@ def install_via_pip(package_name):
Debian/Ubuntu-based systems without a virtual environment.
--prefer-binary prefers pre-built wheels over source distributions to avoid
exhausting /tmp space during compilation.
Returns (success, output).
"""
try:
print(f"Installing {package_name} via pip...")
subprocess.check_call([
sys.executable, '-m', 'pip', 'install', '--break-system-packages', '--prefer-binary', package_name
])
print(f"Installing {package_name} via pip...")
success, output = _run([
sys.executable, '-m', 'pip', 'install', '--break-system-packages', '--prefer-binary', package_name
])
if success:
print(f"Successfully installed {package_name} via pip")
return True
except subprocess.CalledProcessError as e:
print(f"Failed to install {package_name} via pip: {e}")
return False
return True, ""
print(f"Failed to install {package_name} via pip (see failure summary at end of log)")
return False, output
def check_package_installed(package_name):
"""Check if a package is already installed."""
@@ -78,10 +92,27 @@ def check_package_installed(package_name):
except ImportError:
return False
def print_failure_summary(failed_packages, failure_details):
print("\n" + "=" * 60)
print("DEPENDENCY INSTALLATION FAILURES - DETAILS")
print("=" * 60)
for package in failed_packages:
print(f"\nPackage: {package}")
print("-" * 40)
output = failure_details.get(package, "").strip()
if not output:
print(" (no output captured)")
continue
for line in output.splitlines()[-ERROR_TAIL_LINES:]:
print(f" {line}")
print("=" * 60)
def main():
"""Main installation function."""
print("Installing dependencies for LED Matrix Web Interface V2...")
# List of required packages
required_packages = [
'flask',
@@ -98,19 +129,23 @@ def main():
'websockets',
'websocket-client'
]
failed_packages = []
failure_details = {}
for package in required_packages:
if check_package_installed(package):
print(f"{package} is already installed")
continue
# Try apt first, then pip
if not install_via_apt(package):
if not install_via_pip(package):
ok, apt_output = install_via_apt(package)
if not ok:
ok, pip_output = install_via_pip(package)
if not ok:
failed_packages.append(package)
failure_details[package] = pip_output or apt_output
# Install packages that don't have apt equivalents
special_packages = [
'timezonefinder>=6.5.0,<7.0.0',
@@ -122,47 +157,49 @@ def main():
'python-socketio>=5.11.0,<6.0.0',
'python-engineio>=4.9.0,<5.0.0'
]
for package in special_packages:
if not install_via_pip(package):
ok, pip_output = install_via_pip(package)
if not ok:
failed_packages.append(package)
failure_details[package] = pip_output
# Install rgbmatrix module from local source (optional - may already be installed in Step 6)
# Check if already installed first
if check_package_installed('rgbmatrix'):
print("rgbmatrix module already installed, skipping...")
else:
print("Installing rgbmatrix module from local source...")
try:
# Get project root (parent of scripts directory)
PROJECT_ROOT = Path(__file__).parent.parent
rgbmatrix_path = PROJECT_ROOT / 'rpi-rgb-led-matrix-master' / 'bindings' / 'python'
if rgbmatrix_path.exists():
# Check if the module has been built (look for setup.py)
setup_py = rgbmatrix_path / 'setup.py'
if setup_py.exists():
# Try installing - use regular install, not editable mode
# This is optional for web interface and should already be installed in Step 6
subprocess.check_call([
sys.executable, '-m', 'pip', 'install', '--break-system-packages', str(rgbmatrix_path)
], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
# Get project root (parent of scripts directory)
PROJECT_ROOT = Path(__file__).parent.parent
rgbmatrix_path = PROJECT_ROOT / 'rpi-rgb-led-matrix-master' / 'bindings' / 'python'
if rgbmatrix_path.exists():
# Check if the module has been built (look for setup.py)
setup_py = rgbmatrix_path / 'setup.py'
if setup_py.exists():
# Try installing - use regular install, not editable mode
# This is optional for web interface and should already be installed in Step 6
ok, output = _run([sys.executable, '-m', 'pip', 'install', '--break-system-packages', str(rgbmatrix_path)])
if ok:
print("rgbmatrix module installed successfully")
else:
print("Warning: rgbmatrix setup.py not found, module may need to be built first")
print(" This is normal if Step 6 hasn't completed yet.")
# Don't fail the whole installation - rgbmatrix is optional for web interface
# and should be installed in Step 6 of first_time_install.sh
print("Warning: Failed to install rgbmatrix module:")
for line in output.strip().splitlines()[-ERROR_TAIL_LINES:]:
print(f" {line}")
print(" This is normal if rgbmatrix hasn't been built yet (Step 6).")
print(" The web interface will work without it.")
else:
print("Warning: rgbmatrix source not found (this is normal if Step 6 hasn't run yet)")
except subprocess.CalledProcessError as e:
# Don't fail the whole installation - rgbmatrix is optional for web interface
# and should be installed in Step 6 of first_time_install.sh
print(f"Warning: Failed to install rgbmatrix module: {e}")
print(" This is normal if rgbmatrix hasn't been built yet (Step 6).")
print(" The web interface will work without it.")
# Don't add to failed_packages since it's optional
print("Warning: rgbmatrix setup.py not found, module may need to be built first")
print(" This is normal if Step 6 hasn't completed yet.")
else:
print("Warning: rgbmatrix source not found (this is normal if Step 6 hasn't run yet)")
if failed_packages:
print(f"\nFailed to install the following packages: {failed_packages}")
print("You may need to install them manually or check your system configuration.")
print_failure_summary(failed_packages, failure_details)
return False
else:
print("\nAll dependencies installed successfully!")