my-scripts/update-hosts

#!/usr/bin/env sh
#===================
#TODO:
#   + currently making /etc/hosts a symlink to a user owned file to allow script to run w/o sudo, possible security issue.
#
#FLAGS:
# if $1 is -u then update files from internet
#
# ==================

BLOCKFILE="$HOME/.config/blocklist"

update() {
    mkdir -p ~/.local/share/update_hosts
    cd ~/.local/share/update_hosts

    if [ ! -f "./.hosts.orig" ]; then
        cp /etc/hosts ./.hosts.orig
    fi

    if [ "$1" = "-u" ]; then
        
        rm ./.swc_hosts
        #get someonewhocares.org hosts file
        curl https://someonewhocares.org/hosts/hosts -o ./.swc_hosts

    fi

    #[ -f "$BLOCKFILE" ] && echo "blocklist file found." && sed 's/^/127.0.0.1    /g' "$BLOCKFILE" > ./blocklist

    #if [ -f "./blocklist" ]; then
    #    cat ./.hosts.orig ./.swc_hosts ./blocklist  > ./hosts
    #else
        cat ./.hosts.orig ./.swc_hosts  > ./hosts
    #fi

    #cat ./.hosts.orig ./.swc_hosts  > ./hosts

    #sudo mv ./hosts /etc/
    [ "$1" = "-u" ] && sudo rm /etc/hosts && sudo ln -s $HOME/.local/share/update_hosts/hosts /etc/ && exit
}


update "$1"