roto-chrooter.sh

#!/bin/bash
# roto-chrooter, (C) 2005 Sam Powers <[email protected]>. Licensed under GNU GPL.
VER="1.4"

# You can edit the default suite and chroot dir here, or by setting one of the
# below two env vars $_SUITE or $_CHROOT_DIR prior to running the script:
test $_CHROOT_DIR || export _CHROOT_DIR="/chroot"
test $_SUITE || export _SUITE="sarge"
test $_MIRROR || export _MIRROR="http://http.us.debian.org/debian"
# pdmenu https://joeyh.name/code/pdmenu/
# check for dependent programs
DEPPROGS="sudo pdmenu debootstrap dchroot"
for i in $DEPPROGS; do
	if [ -z `which $i` ]; then
    echo "Please install sudo, pdmenu, debootstrap, and dchroot!"
		echo "I can't find $i"
	exit; fi
done

# i am become root, destroyer of filesystems
if [ `whoami` != "root" ]; then
  echo "Hey, just so you know, I'm about to run myself as root for you."
	exec sudo $0
fi

if [ ! -d $_CHROOT_DIR ]; then mkdir $_CHROOT_DIR ; fi

setup_chroot () {
	echo "$1 $2" >> /etc/dchroot.conf
	echo "$1" > "${2}/etc/debian_chroot"
}

if [ "x$1" = "xcreate" ]; then
	if [ -z $2 ]; then echo "Enter a name for the chroot, please." ;exit;fi
	CHPATH="${_CHROOT_DIR}/$2"
	debootstrap "$_SUITE" $CHPATH "$_MIRROR"
	setup_chroot "$2" "$CHPATH"
exit ; fi

if [ "x$1" = "xchroot_cp" ]; then
	cd $_CHROOT_DIR
	cp -au "$2" "$3"
	setup_chroot "$3" "${_CHROOT_DIR}/$3"
exit ; fi

if [ "x$1" = "xchroot_login" ]; then
	clear
	exec dchroot -c $2
fi

if [ "x$1" = "xchroot_rm" ]; then
	clear
	echo "I'm about to run 'rm -rfv $_CHROOT_DIR/$2' (from $PWD)"
	echo "Is that okay? This might be dangerous if I messed it up."
	echo "Press enter to continue or ^C to bail out."
	read
	rm -rfv "$_CHROOT_DIR"/"$2"
	echo "Please remove this entry from /etc/dchroot.conf manually."
exit ; fi

if [ "x$1" = "xabout" ]; then
	echo "<-- Back"
	echo " "
	echo "'roto-chrooter' is a script that I hacked up to provide a"
	echo "nice looking frontend to dchroot, which does a good job of"
	echo "handling the functional side of things. With this program,"
	echo "you can create, copy, delete, or log into a set of chroot"
	echo "environments."
	echo " "
	echo "This program is released under the terms of the GNU GPL,"
	echo "either version 2 or any newer version, at your option."
	echo " "
	echo "It was written by Sam Powers <[email protected]>"
exit;fi

# handle the unhandled, or else the recursion would blow pdmenu sky high)
test $1 && exit

# FIXME: i should be creating the menus dynamically in pdmenu instead of using
# this godawful hack.. also i should possibly read the list via dchroot.

_LCHROOTS=$(echo -e $(for f in `ls $_CHROOT_DIR`; do
	echo -n "\texec:`basename $f`::$0 chroot_login \"$f\"\n"
done))

_RMCHROOTS=$(echo -e $(for f in `ls $_CHROOT_DIR`; do
	echo -n "\texec:`basename $f`:clear,pause:$0 chroot_rm \"$f\"\n"
done))

_CCHROOTS=$(echo -e $(for f in `ls $_CHROOT_DIR`; do
	echo -n "\texec:`basename $f`:edit,pause:$0 chroot_cp \"$f\" \"~Copy to\::~\"\n"
done))

pdmenu -c - << EOF
title:roto-chrooter chroot manager v$VER by Sam Powers <[email protected]>

menu:main:-=-=-roto-chrooter-=-=-
	show:_Log in..::loginmenu
	show:_Copy..::copymenu
	show:_Delete..::rmmenu

	exec:Create _New..:edit,pause:$0 create \
		"~Please enter a name for this chroot or ESC to cancel:~"
	nop
	nop:Options\:
	exec:Sui_te:edit,setenv:echo  _SUITE="~set to?:${_SUITE}~"
	exec:_Mirror:edit,setenv:echo _MIRROR="~Enter debian mirror URI:${_MIRROR}~"
	nop
	exec:About..:display:$0 about
	exit:E_xit

menu:loginmenu:-=-Log in-=-
	exit:<-- Back
	nop
	$_LCHROOTS

menu:copymenu:-=-Copy-=-
	exit:<-- Back
	nop
	$_CCHROOTS

menu:rmmenu:-=-Delete-=-
	exit:<-- Back
	nop
	$_RMCHROOTS
EOF
echo
echo "Welcome back to the real system (`hostname`). Always ski in control."
echo