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kernelcheck/kernelcheck
2017-04-03 19:45:41 +02:00

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#!/bin/sh
# Variables
latest="$(wget -qO - 'https://kernel.org' | sed -n '/stable:/{n;p;}' | sed 's.[a-z]\|<\|>\|/\|[[:space:]]..g')"
current="$(uname -r)"
user="$(users)"
cores=$(nproc)
# Function body
function verify(){
local sign=$1 out=
gkh="647F28654894E3BD457199BE38DBBDC86092693E" # Kroah-Hartman's key
lt="ABAF11C65A2970B130ABE3C479BE3E4300411886" # Torvalds' key
if out=$(sudo -u $user gpg --status-fd 1 --verify "$sign" 2>/dev/null) && echo "$out" | grep -qs "^\[GNUPG:\] VALIDSIG $gkh"
then
return 0
elif out=$(sudo -u $user gpg --status-fd 1 --verify "$sign" 2>/dev/null) && echo "$out" | grep -qs "^\[GNUPG:\] VALIDSIG $lt"
then
return 0
else
echo "$out" >&2
return 1
fi
}
if [[ "$latest" != "$current" ]] && [[ ! -z $latest ]]
then
/usr/local/sbin/notify_all "Kernel update tracker" "There's a new kernel available\!\nGetting the kernel for you.." --icon=dialog-information
download="$(wget -qO - 'https://kernel.org' | sed -n '/latest_link/{n;p;}' | cut -d '"' -f2)"
sudo -u $user wget -qP /tmp $download
sudo -u $user wget -qP /tmp $(sed 's/.xz/.sign/' <<< $download)
/usr/local/sbin/notify_all "Kernel update tracker" "Kernel downloaded\!\nNow extracting and verifying." --icon=dialog-information
sudo -u $user unxz /tmp/linux-$latest.tar.xz
if verify /tmp/linux-$latest.tar.sign
then
/usr/local/sbin/notify_all "Kernel update tracker" "Verification success\!\nStarting compilation.." --icon=dialog-information
else
/usr/local/sbin/notify_all "Kernel update tracker" "Couldn't verify the kernel. Quitting\!" --icon=dialog-warning
exit 1
fi
tar xf /tmp/linux-$latest.tar
cd /tmp/linux-$latest
make clean &>/dev/null
make mrproper &>/dev/null
if [ -f "/root/.config/kernel/.config" ]
then
cp /root/.config/kernel/.config /tmp/linux-$latest/.config
else
/usr/local/sbin/notify_all "Kernel update tracker" "No config file found\!\nAdd it to /root/.config/kernel/.config" --icon=dialog-warning
exit 1
fi
/usr/local/sbin/notify_all "Kernel update tracker" "Starting kernel build..\nThis can take a while."
make -j$cores &>/dev/null
make modules_install &>/dev/null
cp arch/$(uname -m)/boot/bzImage /boot/vmlinuz-$latest
mkinitcpio -k $latest -g /boot/initramfs-$latest.img &>/dev/null
if [ "$(echo $(uname -r) | sed 's/ARCH//')" != "$(uname -r)" ]
then
/usr/local/sbin/notify_all "Kernel update tracker" "Removing the Arch distribution kernel.." --icon=dialog-information
pacman -R --noconfirm linux
elif [ "$(echo $(uname -r) | sed 's/MANJARO//')" != "$(uname -r)" ]
then
/usr/local/sbin/notify_all "Kernel update tracker" "Removing the Manjaro distribution kernel.." --icon=dialog-information
pacman -R --noconfirm linux
else
/usr/local/sbin/notify_all "Kernel update tracker" "Removing the current kernel.." --icon=dialog-information
rm -f /boot/initramfs-$current.img
rm -f /boot/vmlinuz-$current
rm -rf /usr/lib/modules/$current
fi
grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null
/usr/local/sbin/notify_all "Kernel update tracker" "New kernel installed\!" --icon=dialog-information
elif [[ "$latest" == "$current" ]] && [[ ! -z $latest ]]
then
exit 0
elif [[ -z $latest ]]
then
if ncat -zw1 kernel.org 443
then
/usr/local/sbin/notify_all "Kernel update tracker" "Website didn't return the required data." --icon=dialog-warning
else
/usr/local/sbin/notify_all "Kernel update tracker" "No network connection." --icon=dialog-information
fi
else
/usr/local/sbin/notify_all "Kernel update tracker" "Internal error.. Debug time\!" --icon=dialog-warning
exit 1
fi