Pacman Mirrorlist Updater

newmirrors

#!/bin/sh
# Pacman Mirrorlist Updater
# Stephen Brennan <stephen@stephen-brennan.com>

# Display help.
if [ "$1" = "-h" -o "$1" = "--help" ]; then
    echo "usage: newmirrors"
    echo "All-in-one utility for dealing with pacman mirrorlist updates."
    echo
    echo "Steps:"
    echo "1. Backs up current mirrorlist to datestamped file."
    echo "2. Ranks the pacnew mirrorlist and uses the top 10."
    echo "3. Deletes the pacnew mirrorlist."
    echo "4. Updates pacman's databases."
    echo
    echo "It takes a while!  Just don't interrupt it."
    exit 0
fi

# Check if running as root.  I don't know if this is the "right" way to do it,
# but it works.
if [ `whoami` != root ]; then
    echo "You must update the mirrorlist as root."
    exit 1
fi

# Check if there's a new mirrorlist.  Don't want to get rid of the old one if
# there is.
if [ ! -f /etc/pacman.d/mirrorlist.pacnew ]; then
    echo "There is no new mirrorlist."
    exit 2
fi

# First, backup mirrorlist using a timestamp.
TIME=`date +%F`
mv /etc/pacman.d/mirrorlist "/etc/pacman.d/mirrorlist.$TIME"

# Uncomment all the mirrors from the mirrorlist, and rank the top ten of them.
sed 's/#//' /etc/pacman.d/mirrorlist.pacnew | rankmirrors -n 10 - \
                                            >/etc/pacman.d/mirrorlist

# Delete the pacnew mirrorlist.
rm /etc/pacman.d/mirrorlist.pacnew

# Force pacman to refresh its cache.
pacman -Syy