#!/bin/bash
#
# Restore custom-compiled emacs

if test ! -d ./lisp/emacs-lisp; then
    echo "You are not in the right directory."
    exit 1
fi

if test "$UID" != "0"; then
    echo "You must be root to run this."
    exit 1
fi

echo "Stage 1: Installing emacs ..."
make install

echo "Stage 2: Install fake emacs-snapshot package ..."
dpkg -i ../../emacs-snapshot_1.0_i386.deb

echo "Done."
echo "Stage 2: Making symlinks ..."
latest=$(cd /usr/local/share/emacs && echo 23.* | tr ' ' '\n' | sort \
    | tail -n 1)
ln -sf /usr/local/share/emacs/$latest /usr/share/emacs-snapshot
ln -sf /usr/local/bin/emacs /usr/bin/emacs-snapshot
mkdir -p /etc/emacs-snapshot/site-start.d

echo "Done."
echo "Stage 3: Installing emacs-snapshot flavor ..."
echo >> /var/lib/emacsen-common/installed-flavors
echo emacs-snapshot >> /var/lib/emacsen-common/installed-flavors
/usr/lib/emacsen-common/emacs-install emacs-snapshot

echo "Done."