mirrorgen.sh

#!/usr/bin/env bash

# Get the info about the current distro
source /etc/os-release

if [ -z $UBUNTU_CODENAME ]; then
	echo "Not on Ubuntu."
	exit 1
fi

distro="$ID"

mirror_url="https://mirror.cs.jmu.edu/pub"

# For the Ubuntu stuff, UBUNTU_CODENAME has to be used because it is consistent
# between Mint and Ubuntu, whereas VERSION_CODENAME on Ubuntu is the same as
# UBUNTU_CODENAME but on Mint it is the codename of the current Mint version.

# I think the /linuxmint/packages may not necessarily be the same for all
# mirrors, but so long as JMU CS is the primary concern, that should be alright

# Print the Ubuntu stuff to /etc/apt/sources.list when doing for real; this
# goes to stdout as an example
echo "# DO NOT EDIT THIS FILE. AUTOMATICALLY GENERATED
deb ${mirror_url}/ubuntu $UBUNTU_CODENAME main restricted universe multiverse
deb ${mirror_url}/ubuntu ${UBUNTU_CODENAME}-updates main restricted universe multiverse
deb ${mirror_url}/ubuntu ${UBUNTU_CODENAME}-backports main restricted universe multiverse
deb ${mirror_url}/ubuntu ${UBUNTU_CODENAME}-security main restricted universe multiverse
deb http://archive.canonical.com/ubuntu/ ${UBUNTU_CODENAME} partner"

if [ "$distro" == "ubuntu" ]; then
	exit 0;
fi

# Prnt the Mint stuff to /etc/apt/sources.list.d/official-package-repositories.list
# when doing this for real; this goes to stdout for the example
echo "DO NOT EDIT THIS FILE. AUTOMATICALLY GENERATED
deb ${mirror_url}/linuxmint/packages ${VERSION_CODENAME} main upstream import backport"