void-packages/triggers/register-shell

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#!/bin/sh
#
# Registers or unregisters a shell in /etc/shells.
#
# Arguments: $1 = action [run/targets]
# $2 = target [post-install]
# $3 = pkgname
# $4 = version
#
trigger="register-shell"
shells_file="./var/db/xbps/metadata/$3/shells"
case "$1" in
targets)
echo "post-install post-remove"
;;
run)
[ "$2" != "post-install" -a "$2" != "post-remove" ] && exit 1
[ ! -f ${shells_file} ] && exit 1
echo "Running $trigger trigger..."
case "$2" in
post-install)
if [ ! -f ./etc/shells ]; then
cat ${shells_file} | while read line; do
echo $line >> ./etc/shells
echo "Registered $line into /etc/shells."
done
chmod 644 ./etc/shells
else
cat ${shells_file} | while read line; do
if ! grep -q $line ./etc/shells; then
echo $line >> ./etc/shells
echo -n "Registered $line into "
echo "/etc/shells."
fi
done
fi
;;
post-remove)
if [ -f ./etc/shells ]; then
cat ${shells_file} | while read line; do
if grep -q $line ./etc/shells; then
shell=$(echo $line|sed "s|\\/|\\\/|g")
sed -i -e "/$shell/d" ./etc/shells
echo -n "Unregistered $line from "
echo "/etc/shells."
fi
done
fi
;;
esac
;;
*)
exit 1
;;
esac
exit 0