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#!/usr/bin/env python
import os
import sys
required_packages = [
'sudo',
'make',
'live-build',
'pbuilder',
'devscripts',
'python-pystache'
]
def is_installed(name):
result = os.system("dpkg-query -W --showformat='${{Status}}\n' {name} 2>&1 | grep 'install ok installed' >/dev/null".format(name=name))
return True if result == 0 else False
missing_packages = []
print("Checking if packages required for VyOS image build are installed")
for p in required_packages:
if not is_installed(p):
missing_packages.append(p)
if missing_packages:
print("Your system does not have some of the required packages installed.")
print("Please install the following packages:")
print(" ".join(missing_packages))
sys.exit(1)
else:
print("All required packages are installed")
sys.exit(0)
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