bumblebee-status/bin/pacman-updates

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#!/usr/bin/bash
if ! type -P fakeroot >/dev/null; then
error 'Cannot find the fakeroot binary.'
exit 1
fi
if [[ -z $CHECKUPDATES_DB ]]; then
CHECKUPDATES_DB="${TMPDIR:-/tmp}/checkup-db-${USER}/"
fi
trap 'rm -f $CHECKUPDATES_DB/db.lck' INT TERM EXIT
DBPath="${DBPath:-/var/lib/pacman/}"
eval $(awk -F' *= *' '$1 ~ /DBPath/ { print $1 "=" $2 }' /etc/pacman.conf)
mkdir -p "$CHECKUPDATES_DB"
ln -s "${DBPath}/local" "$CHECKUPDATES_DB" &> /dev/null
fakeroot -- pacman -Sy --dbpath "$CHECKUPDATES_DB" --logfile /dev/null &> /dev/null
fakeroot pacman -Su -p --dbpath "$CHECKUPDATES_DB"
exit 0