create-installation-archive

set -eo pipefail

source /data/usr/share/makepkg/util/message.sh || source /usr/share/makepkg/util/message.sh
colorize

#
# Functions
#

fail() {
    error "$1" && exit 1
}

use_sudo=0

sudo() {
    if [[ $EUID > 0 ]] ; then
        if [[ $use_sudo -eq 1 ]]; then
            /data/usr/bin/sudo "$@"
        else
            /system/bin/su -p -c "$@"
        fi
    else
        "$@"
    fi
}

#
# Sanity checks
#

msg "Checking your envirnment..."

[[ -z "$ANDROID_ROOT" ]] && fail "This script is expected to run on an android device!"
pacman -Qq install-scripts &> /dev/null || fail "You need to install install-scripts from extra repo!"

if /data/usr/bin/sudo --version &> /dev/null ; then
    msg "Sudo detected!"
    use_sudo=1
elif /system/bin/su --help | grep -e "MagiskSU" -e "KernelSU" &> /dev/null ; then
    msg "MagiskSU/KernelSU detected!"
elif [[ $EUID > 0 ]] ; then
    fail "Only MagiskSU/KernelSU is supported for now!"
fi

msg "Building chroot..."

mkdir -p workingdir
sudo chown root:root workingdir
sudo pacstrap -c workingdir base vim sudo

msg "Initializing dirs..."

sudo rm -r workingdir/data/local workingdir/{dev,proc,sys} # Handled by Android
sudo chmod 0771 workingdir/data
sudo mkdir -m 700 workingdir/data/home/{shell,root}
sudo chown root:root workingdir/data/home/root
sudo chown shell:shell workingdir/data/home/shell
sudo touch workingdir/data/.pfa-root
sudo chcon u:object_r:system_data_root_file:s0 workingdir/data

msg "Creating compressed installation archive..."

sudo env LANG=C bsdtar --options zstd:compression-level=9 --xattrs --acls --zstd -cf "installation-archive-$(date --rfc-3339=date).tar.zst" -C workingdir/data/ .

msg "Removing chroot..."

sudo rm -rf workingdir

msg "Success!"