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@jarehec
Created January 24, 2018 23:21
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#!/bin/bash
## UNLICENSE file for license information
# Misc checks
if [ $(id -u) -ne 0 ]
then
echo "This script needs root to work." # It really does. We're installing packages.
exit 1
fi
depcheck () {
if ! command -v "$1" >/dev/null 2>&1
then
echo "I require \`"$1"\` but it's not installed."
echo "Install the \`"${@: -1}"\` package."
# ${@: -1} is bashism for "last argument passed"
# This is done instead of $2 to avoid writing "depcheck tar tar"
# I suck at being evil, I know.
exit 1
fi
}
depcheck ar binutils
depcheck tar xz
depcheck basename coreutils
_list_dir="/var/debinst/lists"
if [ ! -d $_list_dir ]; then
mkdir -p $_list_dir
fi
_log_dir="/var/debinst/logs"
if [ ! -d $_log_dir ]; then
mkdir -p $_list_dir
fi
_usage(){
echo 'Usage: debinst [install|remove|list] {PACKAGE.deb}'
}
# Install deb package
_pkg_install(){
_package=$(basename $1)
if ! echo $_package | egrep -q "\.deb$"; then
echo "Not a valid .deb package?"
exit 1;
fi
t=temp-$_package
if [ -f $_list_dir/$_package.list ]; then
echo "Package already installed?"
exit 1
fi
echo "$t $_package"
mkdir -p $t
cp $1 $t
cd $t
ar x $_package
rm $_package
tar xf data.tar* 2>/dev/null
touch $_list_dir/$_package.list
for d in */ ; do
find $d -mindepth 2 >> $_list_dir/$_package.list
cp -r $d / 2> /dev/null
done
echo "Package extracted. Now running post-install script"
tar xf control.tar*
if [ -f postinst ]
then
bash postinst configure > $_list_dir/$_package.postinst.log 2>&1 && echo "Post-install completed succesfully." || echo "Post-install script returned error. The package may or may not work. See postinst.log"
fi
if [[ $(file $_list_dir/$_package.postinst.log) =~ "empty" ]]; then rm -f $_list_dir/$_package.postinst.log; fi
if [ ! -f postinst ]
then
echo "This package does not have a post-install script."
fi
echo "Cleaning up.."
cd ..
rm -rf $t
echo "Done! A list of copied files has been created in $n.list for eventual deletion."
echo "(Warning! This may include files not safe for deletion. Always check.)"
exit 0
}
_pkg_remove(){
_package=$1
if ls $_list_dir/$1*.list 2> /dev/null > /dev/null; then
find $_list_dir -type f -name "$1*.list" > /tmp/debinst.remove
basename $(cat /tmp/debinst.remove) | sed 's/\..*//'
echo -n "Really remove package(s) [y/n]?: "
read a;
case "$a" in
y) cat /tmp/debinst.remove | xargs cat | sed 's/^\(.\)/\/\1/g' | xargs rm -rf
cat /tmp/debinst.remove | xargs rm -f
rm /tmp/debinst.remove;;
*) exit 1;;
esac
else
echo "No installed .deb packages with specified name."
rm /tmp/debinst.remove
exit 1
fi
}
# Arguments check
_arg_check(){
if [ $# -eq 0 ]
then
echo "No arguments supplied."
_usage
exit 1
elif [ $# -ne 1 ]
then
echo "Too many arguments supplied"
_usage
exit 1
fi
}
# All set! Start working
case "$1" in
"install") _pkg_install $2;;
"remove") _pkg_remove $2;;
"list") if ls $_list_dir/*.list 2> /dev/null > /dev/null; then
find $_list_dir -type f | xargs basename | sed 's/\..*//'
else
echo "No installed .deb packages."
fi;;
*) _arg_check;;
esac
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