unbox/unbox.sh

#!/bin/bash


source $(dirname $0)/utils.sh

function unbox_outer_stage(){
    echo "-----------FIRST STAGE-----------"
    
    apt install git util-linux
    
	touch .repo_cache
    select chosen_repo in other $(cat .repo_cache | sort | uniq); do
		if [ "${chosen_repo}" = "other" ]; then
			echo -n "git repository url: "
			read REMOTE
		else
			REMOTE=$chosen_repo
		fi
		echo $REMOTE
		echo $REMOTE >> .repo_cache
		break
    done
    
    if [ -e repo ]; then
        (cd repo; git pull)
    else
        git clone "$REMOTE" repo
    fi

    if [[ ! -e repo/entry.sh ]]; then
        echo no entry found;
        exit 1;
    fi

    source repo/entry.sh

    mkdir -p target
    export TARGET=$(pwd)/target
    export UNBOX_ENV_FILE=$(pwd)/.env
    
    if [ -e .env ]; then
        rm .env
    fi
    

    if type -t first_stage > /dev/null; then
        first_stage
    else
        echo first stage not found
    fi

    if type -t chroot > /dev/null; then
        if type -t arch-chroot > /dev/null; then
            CHROOT=arch-chroot
        else
            CHROOT=chroot
        fi
    else
        echo ERROR: no chroot found 1>&2
        exit 1
    fi

    mkdir -p target/root/unbox
    mount -o bind . target/root/unbox
    $CHROOT target /root/unbox/unbox.sh unbox_inner_stage
    
    if type -t post_install_stage > /dev/null; then
        post_install_stage
    else
        echo no post_install_stage found
    fi
    if [ -e ${UNBOX_ENV_FILE} ]; then
        rm ${UNBOX_ENV_FILE}
    fi
    exit 0
}

function unbox_inner_stage(){
    echo "-----------SECOND STAGE-----------"
    export UNBOX_ENV_FILE=$(pwd)/.env
    if [ -e ${UNBOX_ENV_FILE} ]; then
        source ${UNBOX_ENV_FILE}
    fi
    if [ -e repo/entry.sh ]; then
        source repo/entry.sh
    else
        echo chosen repository does not contain entry.sh file
    fi
    if type -t second_stage > /dev/null; then
        second_stage
    else
        echo second stage not found
    fi
    if [ -e ${UNBOX_ENV_FILE} ]; then
        rm ${UNBOX_ENV_FILE}
    fi
    exit 0
}

cd $(dirname $0)
if [[ $# -ge 1 ]]; then 
    CMD=$1
    shift
    if type -t $CMD > /dev/null; then
        $CMD $@
    else
        echo command $CMD found
        exit 1
    fi
else
	git pull
    $0 unbox_outer_stage
fi