clear
me=`basename "$0"`
echo
echo
echo
scripting_rc_path=~/.config/EnlivenMinetest/scripting.rc
if [ -f "$EM_CONFIG_PATH/scripting.rc" ]; then
    echo "* [$MT_ENV_RUP_NAME] using $scripting_rc_path..."
    source $scripting_rc_path
fi
if [ -z "$REPO_PATH" ]; then
    REPO_PATH="$HOME/git/EnlivenMinetest"
fi
MT_BASH_RC_NAME="minetestenv-in-place.rc"
CURRENT_MT_SCRIPTS_DIR="$HOME/.local/bin"
MT_BASH_RC_PATH="$CURRENT_MT_SCRIPTS_DIR/$MT_BASH_RC_NAME"
TRY_CURRENT_MT_SCRIPTS_DIR="$REPO_PATH"
TRY_MT_BASH_RC_PATH="$TRY_CURRENT_MT_SCRIPTS_DIR/$MT_BASH_RC_NAME"
if [ -f "$TRY_MT_BASH_RC_PATH" ]; then
    CURRENT_MT_SCRIPTS_DIR="$TRY_CURRENT_MT_SCRIPTS_DIR"
    MT_BASH_RC_PATH="$TRY_MT_BASH_RC_PATH"
fi
#if [ ! -f "$MT_BASH_RC_PATH" ]; then
if [ ! -d "$REPO_PATH" ]; then
    if [ -f "$MT_BASH_RC_PATH" ]; then
        echo "* updating \"$MT_BASH_RC_PATH\"..."
        rm $MT_BASH_RC_PATH
    fi
    # ^ Always upgrade the rc file manually if it is not in the repo.
    if [ ! -d "$CURRENT_MT_SCRIPTS_DIR" ]; then
        mkdir -p "$CURRENT_MT_SCRIPTS_DIR"
    fi
    MT_BASH_RC_URL=https://raw.githubusercontent.com/poikilos/EnlivenMinetest/master/$MT_BASH_RC_NAME
    curl $MT_BASH_RC_URL -o "$MT_BASH_RC_PATH"
    if [ $? -ne 0 ]; then
    #if [ ! -f "$MT_BASH_RC_PATH" ]; then
        # This is necessary on cygwin for some reason.
        curl $MT_BASH_RC_URL > "$MT_BASH_RC_PATH"
    fi
    #if [ $? -ne 0 ]; then
    if [ ! -f "$MT_BASH_RC_PATH" ]; then
        # This is necessary on cygwin for some reason.
        wget -O "$MT_BASH_RC_PATH" $MT_BASH_RC_URL
    fi
    if [ $? -ne 0 ]; then
        echo
        echo "ERROR: Downloading $MT_BASH_RC_URL to $MT_BASH_RC_PATH failed."
        echo
        sleep 10
        exit 1
    fi
else
    echo "* using existing $MT_BASH_RC_PATH"
    echo "  * to update it, run: cd \"$REPO_PATH\" && git pull"
fi
if [ ! -f "$MT_BASH_RC_PATH" ]; then
    echo
    echo "$MT_BASH_RC_PATH is not present."
    echo
    sleep 10
    exit 1
fi
source $MT_BASH_RC_PATH
# ^ same as install-mts.sh, versionize.sh, update-minetest-linux64.sh


err_txt=$HOME/err-enliven.txt
echo "# * minetestenv.rc started `date`" > "$err_txt"

customExit() {
    echo
    errorLevel=1
    if [ -z "$2" ]; then
        errorLevel=$2
    fi
    if [ -z "$1" ]; then
        echo "Unknown error."
    else
        echo "ERROR:"
        echo "$1" >> "$err_txt"
    fi
    echo "$1"
    echo
    echo "'$err_txt' may contain more information."
    echo
    echo "This session will exit unless you press Ctrl-C to cancel script..."
    sleep 1
    echo "4..."
    sleep 1
    echo "3..."
    sleep 1
    echo "2..."
    sleep 1
    echo "1..."
    sleep 1
    exit $errorLevel
}

CONFIG_PATH="$HOME/.config/EnlivenMinetest"
EM_CACHE_PATH="$HOME/.cache/EnlivenMinetest"
if [ ! -d "$CONFIG_PATH" ]; then
    mkdir -p "$CONFIG_PATH"
fi
if [ ! -d "$EM_CACHE_PATH" ]; then
    mkdir -p "$EM_CACHE_PATH"
fi

RELEASES_PATH="$EM_CACHE_PATH/releases"
if [ -d "$CONFIG_PATH/cache/releases" ]; then
    # upgrade/remove cache from older versions of this script
    if [ ! -d "$EM_CACHE_PATH/releases" ]; then
        mv "$CONFIG_PATH/cache/releases" "$EM_CACHE_PATH/"
        echo "upgraded cache from older version of this script (moved to $RELEASES_PATH)"
    else
        rm -Rf "$CONFIG_PATH/cache/releases"
        echo "removed redundant cache from older version of this script: $CONFIG_PATH/cache/releases"
    fi
fi
if [ ! -d "$RELEASES_PATH" ]; then
    mkdir -p "$RELEASES_PATH"
fi

GIT_REPOS_PATH="$EM_CACHE_PATH/git"
if [ -d "$CONFIG_PATH/cache/git" ]; then
    if [ ! -d "$EM_CACHE_PATH/git" ]; then
        mv "$CONFIG_PATH/cache/git" "$EM_CACHE_PATH/"
        echo "upgraded cache from older version of this script (moved to $GIT_REPOS_PATH)"
    else
        rm -Rf "$CONFIG_PATH/cache/git"
        echo "removed redundant cache from older version of this script: $CONFIG_PATH/cache/git"
    fi
fi

if [ ! -d "$GIT_REPOS_PATH" ]; then
    mkdir -p "$GIT_REPOS_PATH"
fi
GIT_BRANCHES_PATH="$EM_CACHE_PATH/git-branches"
if [ -d "$CONFIG_PATH/cache/git-branches" ]; then
    # upgrade/remove cache from older versions of this script
    if [ ! -d "$EM_CACHE_PATH/git-branches" ]; then
        mv "$CONFIG_PATH/cache/git-branches" "$EM_CACHE_PATH/"
        echo "upgraded cache from older version of this script (moved to $GIT_BRANCHES_PATH)"
    else
        rm -Rf "$CONFIG_PATH/cache/git-branches"
        echo "removed redundant cache from older version of this script: $CONFIG_PATH/cache/git-branches"
    fi
fi
if [ ! -d "$GIT_BRANCHES_PATH" ]; then
    mkdir -p "$GIT_BRANCHES_PATH"
fi

if [ -d "$CONFIG_PATH/cache" ]; then
    rmdir "$CONFIG_PATH/cache"
fi

MOD_LIST="$CONFIG_PATH/mod_list.txt"

# * Git version uses /home/*/minetest/games and /usr/local/share/minetest/games but the latter is used for minetestserver (minetest-server package)
# * Arch stable version uses /usr/share/minetest/
if [ "$1" = "--help" ]; then
    echo "This script installs ENLIVEN subgame for minetest. It uses individual git repositories, so please only run this once so as not to exceed their bandwidth."
    echo "Usage:"
    echo
    #echo "enable_version_0_5=<value> (where value is true or false): forces 0.5 (if not specified, this script uses 0.5 versions of mods if minetest is at /usr/local/share/minetest)"
    #echo
    echo "local_enable=<value> (where value is true or false): forces /usr/local/share/minetest (if not specified, script detects minetest but if exists both in /usr/share/ and /usr/local/share, prefers /usr/local/share/minetest)"
    echo
    exit 0
fi

#NOTE: enable_version_0_5 is now detected further down instead of being specified
#if [ "$1" = "enable_version_0_5=true" ]; then
#    enable_version_0_5="true"
#elif [ "$2" = "enable_version_0_5=true" ]; then
#    enable_version_0_5="true"
#elif [ "$1" = "enable_version_0_5=false" ]; then
#    enable_version_0_5="false"
#elif [ "$2" = "enable_version_0_5=false" ]; then
#    enable_version_0_5="false"
#fi

if [ "$1" = "local_enable=true" ]; then
    local_enable="true"
#elif [ "$2" = "local_enable=true" ]; then
#    local_enable="true"
elif [ "$1" = "local_enable=false" ]; then
#    local_enable="false"
#elif [ "$2" = "local_enable=false" ]; then
    local_enable="false"
fi
#echo "3..."
#sleep 1
#echo "2..."
#sleep 1
#echo "1..."
#sleep 1
update_enable="true"
shell_name="bash"
# doesn't work if equal: [ $0 = *"$shell_name"* ]
# could be -bash or bash
#if [ "$0" = "-bash" ]; then
#'[[' doesn't work in debian
show_changes="true"
#[[ doesn't work in debian:
#if [[ $0 == *"$shell_name"* ]]; then
#doesn't work on Fedora since shell_name is blank even when in shell and not pasting:
#if [ "$shell_name" != "" ]; then
    #REPO_PATH="$HOME/GitHub/EnlivenMinetest"
    #echo "You must have pasted this into terminal, so assuming REPO_PATH:"
    #echo "    $REPO_PATH"
#else
    SCRIPT=$(readlink -f "$0")
    if [ "$SCRIPT" = "/bin/bash" ]; then
        SCRIPT=minetestenv.rc
        if [ ! -f "$SCRIPT" ]; then
            customExit "ERROR: could not find self (need location of self in order to get SCRIPTPATH and then REPO_PATH in order for patches directory to be found."
        fi
    fi
    # Absolute path this script is in, thus /home/user/bin
    SCRIPTPATH=$(dirname "$SCRIPT")
    REPO_PATH="$SCRIPTPATH"
    #formerly, this script was in a subdir:
    #REPO_PATH=$(dirname "$SCRIPTPATH")
#fi

PATCHES_PATH="$REPO_PATH/patches"
if [ ! -d "$PATCHES_PATH" ]; then
    if [ -d "$HOME/git/EnlivenMinetest" ]; then
        REPO_PATH=$HOME/git/EnlivenMinetest
        PATCHES_PATH="$REPO_PATH/patches"
    fi
fi

echo "PATCHES_PATH: $PATCHES_PATH"

if [ ! -d "$PATCHES_PATH" ]; then
    # maybe moved somewhere or this code was pasted
    PATCHES_PATH=$HOME/GitHub/EnlivenMinetest/patches
fi
if [ ! -d "$PATCHES_PATH" ]; then
    # maybe running from root of repo
    PATCHES_PATH="patches"
fi
if [ ! -d "$PATCHES_PATH" ]; then
    # should work if ran from folder where exists
    PATCHES_PATH="../patches"
fi
if [ ! -d "$PATCHES_PATH" ]; then
    echo
    echo
    customExit "ERROR: could not find patches such as in $PATCHES_PATH"
fi
# NOTE: minetest mods (other than 0.4.16 client-side mods) are ALWAYS ONLY installed on server, unless you need them for singleplayer
USR_SHARE_MINETEST=/usr/share/games/minetest
try_path="/usr/share/minetest"
if [ -d "$try_path" ]; then
    # Arch linux
    USR_SHARE_MINETEST="$try_path"
fi
if [ "$local_enable" != "false" ]; then
    # IF git version is installed
    try_path="/usr/local/share/minetest"
    if [ -d "$try_path" ]; then
        #if [ -z "$enable_version_0_5" ]; then
        #    enable_version_0_5="true"
        #fi
        USR_SHARE_MINETEST="$try_path"
    fi
fi
enable_version_0_5="false"
if [ -d "$USR_SHARE_MINETEST/games/minetest_game/mods/player_api" ]; then
    enable_version_0_5="true"
fi
if [ -f "$CONFIG_PATH/local_enable" ]; then
    local_enable=$(head -n 1 $CONFIG_PATH/local_enable)
fi
#if [ -f "$CONFIG_PATH/enable_version_0_5" ]; then
#    enable_version_0_5=$(head -n 1 $CONFIG_PATH/enable_version_0_5)
#fi
if [ -z "$local_enable" ]; then
    echo "$local_enable" > "$CONFIG_PATH/local_enable"
fi
#if [ -z "$enable_version_0_5" ]; then
#    echo "$enable_version_0_5" > "$CONFIG_PATH/enable_version_0_5"
#fi

mtgame_name="minetest_game"
MT_MINETEST_GAME_PATH=$USR_SHARE_MINETEST/games/$mtgame_name
#echo "3..."
#sleep 1
#echo "2..."
#sleep 1
#echo "1..."
#sleep 1
# intentionally skip the slash in the following line since $USR_SHARE_MINETEST already starts with one:
MT_BACKUP_GAMES_DIR=$HOME/.minetest/games-disabled
SYSTEM_MT_GAMES_DIR=$USR_SHARE_MINETEST/games
MT_MYGAMES_DIR=$HOME/.minetest/games
MT_MYGAME_BAK=$MT_BACKUP_GAMES_DIR/ENLIVEN_BAK
MT_MYGAME_NAME=ENLIVEN
MT_MYGAME_DIR="$MT_MYGAMES_DIR/$MT_MYGAME_NAME"
# formerly MT_MYGAME_MODDIR:
MT_MYGAME_MODS_PATH="$MT_MYGAME_DIR/mods"
MT_WORLDS_DIR="$HOME/.minetest/worlds"
echo "Worlds in '$MT_WORLDS_DIR':"
MT_DEFAULT_WORLD_NAME="`ls $MT_WORLDS_DIR | grep -v tar.gz | grep --max-count=1 -v world`"  # aka -m 1 (no '=' sign in that case)
MT_MYWORLD_NAME="$MT_DEFAULT_WORLD_NAME"
if [ -z "$MT_DEFAULT_WORLD_NAME" ]; then
    #if [ -z "`ls $MT_WORLDS_DIR | grep --max-count=1 -v world`" ]; then
    new_worlds="`ls $MT_WORLDS_DIR | grep --max-count=1 -v '^world$'`"
    if [ ! -z "$new_worlds" ]; then
    # anchors (`^` and `$`) ensure only exact match, so name containing world is not counted as a match
    # see also <https://stackoverflow.com/questions/4709912/how-to-make-grep-only-match-if-the-entire-line-matches>
        MT_MYWORLD_NAME="$new_worlds"
    else
        if [ -d "$MT_WORLDS_DIR/world" ]; then
            echo "Could not find any new worlds in $MT_WORLDS_DIR so using '$MT_MYWORLD_NAME'"
        else
            echo "Could not find any worlds in $MT_WORLDS_DIR"
        fi
    fi
    #if [ "$0" = "-bash" ]; then
#'[[' doesn't work in debian:
    #if [[ $0 == *"$shell_name"* ]]; then
    #doesn't work on Fedora since shell_name is blank even when in shell and not pasting:
    #if [ "$shell_name" != "" ]; then
    #    REPO_PATH="$HOME/GitHub/EnlivenMinetest"
    #    MT_MYWORLD_NAME="world"
    #    echo "You must have pasted this into terminal, so assuming MT_MYWORLD_NAME:"
    #    echo "    $MT_MYWORLD_NAME"
    #    echo "Press Ctrl C to cancel, otherwise $MT_MYWORLD_NAME will be used..."
    #    #sleep 1
    #    #echo " 3..."
    #    #sleep 1
    #    #echo " 2..."
    #    sleep 1
    #    echo " 1..."
    #    sleep 1
    #else
        read -e -p "Please enter a world (name only--must be in $MT_WORLDS_DIR): " -i "$MT_MYWORLD_NAME" MT_MYWORLD_NAME
        #$MT_DEFAULT_WORLD_NAME
        echo using "$MT_MYWORLD_NAME"
        #echo " 3..."
        #sleep 1
        #echo " 2..."
        sleep 1
        echo " 1..."
        sleep 1
    #fi
else
    #NOTE: $0 doesn't work because gives actual command (such as `./filename.sh`--gives filename only if command was `bash filename.sh`)
    #'[[' doesn't work in debian:
    #if [[ $0 == *"$shell_name"* ]]; then
    #if [ "$shell_name" = "" ]; then echo "running normally (not pasted)"
    #doesn't work on Fedora since shell_name is blank even when in shell and not pasting:
    #if [ "$shell_name" != "" ]; then
    #    REPO_PATH="$HOME/GitHub/EnlivenMinetest"
    #    MT_MYWORLD_NAME="$MT_DEFAULT_WORLD_NAME"
    #    echo "You must have pasted this into terminal, so assuming MT_MYWORLD_NAME:"
    #    echo "    $MT_MYWORLD_NAME"
    #else
        ls $MT_WORLDS_DIR
        read -p "Please enter a world [blank for $MT_DEFAULT_WORLD_NAME]: " MT_MYWORLD_NAME
        #$MT_DEFAULT_WORLD_NAME
        if [ -z "$MT_MYWORLD_NAME" ]; then
            MT_MYWORLD_NAME=$MT_DEFAULT_WORLD_NAME
        fi
        echo using "$MT_MYWORLD_NAME"
        echo " 3..."
        sleep 1
        echo " 2..."
        sleep 1
        echo " 1..."
        if [ -z "$MT_MYWORLD_NAME" ]; then
            MT_MYWORLD_NAME="$MT_DEFAULT_WORLD_NAME"
        fi
    #fi
fi
if [ ! -d "$MT_WORLDS_DIR/$MT_MYWORLD_NAME" ]; then
        customExit "    ERROR: failed to find world path, so cannot continue."
fi
MT_MYWORLD_DIR=$MT_WORLDS_DIR/$MT_MYWORLD_NAME
echo "Using world at $MT_MYWORLD_DIR"
WORLD_MT_PATH=$MT_MYWORLD_DIR/world.mt
# see also https://www.shellscript.sh/functions.html

reinstall_mt_game() {
    if [ "$MT_MINETEST_GAME_PATH" = "/usr/local/share/minetest/games/minetest_game" ]; then
        SRC_MT="$HOME/minetest"
        if [ -d "$HOME/Downloads/minetest/games/minetest_game" ]; then
            SRC_MT="$HOME/Downloads/minetest"
        fi
        if [ -d "$SRC_MT" ]; then
            SRC_MT_GAME="$SRC_MT/games/minetest_game"
            cd $SRC_MT_GAME
            echo "updating $SRC_MT_GAME..."
            git pull || echo "rm -Rf \"`pwd`\"  # FAILED: cd \"`pwd`\" && git pull" >> "$err_txt"
            cd
            sudo rm -Rf "$MT_MINETEST_GAME_PATH"
            sudo cp -R "$SRC_MT_GAME" "$USR_SHARE_MINETEST/games/"
            if [ -d "$USR_SHARE_MINETEST/games/minetest_game" ]; then
                echo "successfully recreated $USR_SHARE_MINETEST/games/minetest_game"
            else
                customExit "failed to create $USR_SHARE_MINETEST/games/minetest_game, so cannot continue."
            fi
        else
            echo "ERROR: refusing to reinstall minetest_game since missing sources (not at $HOME/minetest/games/minetest_game nor $HOME/Downloads/minetest/games/minetest_game"
        fi
    else
        echo "ERROR: refusing to reinstall minetest_game to packaged dir: $MT_MINETEST_GAME_PATH"
    fi
}

add_zip_mod()
{
    cd $RELEASES_PATH
    MTMOD_DEST_NAME=$1
    MTMOD_GOT_NAME=$2
    URL=$3
    MTMOD_SRC_ZIP=$MTMOD_DEST_NAME.zip
    if [ ! -z "`ls | grep $MTMOD_GOT_NAME`" ]; then    # works with wildcard in variable
        rm -Rf $MTMOD_GOT_NAME
    fi
    if [ -f $MTMOD_SRC_ZIP ]; then
        rm -f $MTMOD_SRC_ZIP
    fi
    wget -O $MTMOD_SRC_ZIP $URL
    unzip -q "$MTMOD_SRC_ZIP"
    add_mod_from_here $MTMOD_DEST_NAME $MTMOD_GOT_NAME
}

add_git_mod()
{
    cd $GIT_REPOS_PATH
    MTMOD_DEST_NAME=$1
    MTMOD_GOT_NAME=$2
    URL=$3
    BRANCH=$4
    if [ ! -z "$BRANCH" ]; then
        cd $GIT_BRANCHES_PATH
        if [ ! -d "$BRANCH" ]; then
            mkdir "$BRANCH"
        fi
        cd "$BRANCH"
    fi
    if [ ! -d "$MTMOD_GOT_NAME" ]; then
        if [ ! -z "$BRANCH" ]; then
            echo "BRANCH: Cloning $BRANCH branch..."
            this_git_cmd="git clone -b $BRANCH --single-branch $URL"
            echo "$this_git_cmd"
            git clone -b $BRANCH --single-branch $URL || echo "#FAILED: cd \"`pwd`\" && $this_git_cmd" >> "$err_txt"
        else
            #echo "Cloning main branch since no branch specified: $BRANCH"
            this_git_cmd="git clone $URL"
            echo "$this_git_cmd"
            git clone $URL || echo "#FAILED: cd \"`pwd`\" && $this_git_cmd" >> "$err_txt"
        fi
    else
        cd $MTMOD_GOT_NAME
        echo "updating mod $MTMOD_GOT_NAME in `pwd`..."
        git pull || echo "rm -Rf \"`pwd`\"  # FAILED: cd \"`pwd`\" && git pull" >> "$err_txt"
        cd ..
    fi
    add_mod_from_here $MTMOD_DEST_NAME $MTMOD_GOT_NAME
}



add_mod_from_here()
{
    MTMOD_DEST_NAME=$1
    MTMOD_GOT_NAME=$2
    THIS_MODS_PATH=$MT_MYGAME_MODS_PATH
    if [ ! -f "$MOD_LIST" ]; then touch "$MOD_LIST"; fi
    echo "$MTMOD_DEST_NAME" >> "$MOD_LIST"
    MTMOD_DEST_PATH=$THIS_MODS_PATH/$MTMOD_DEST_NAME
    if [ -z "$MTMOD_DEST_NAME" ]; then
        customExit "ERROR: nothing done since add_mod_from_here FAILED to receive 'MTMOD_DEST_NAME' (1st param)"
    fi
    if [ -z "$MTMOD_GOT_NAME" ]; then
        customExit "ERROR: nothing done since add_mod_from_here FAILED to receive 'MTMOD_GOT_NAME' which is the exact downloaded or unzipped folder name (2nd param)"
    fi
    if [ ! -d "$MTMOD_DEST_PATH" ] || [ "$update_enable" = "true" ]; then
        if [ ! -d "$MTMOD_GOT_NAME" ]; then
            customExit "ERROR: nothing done since add_mod_from_here FAILED to find '$MTMOD_GOT_NAME'"
        fi
        if [ -d "$MTMOD_DEST_PATH" ]; then
            if [ ! -f "`command -v rsync`" ]; then
                echo "removing old $MTMOD_DEST_PATH"
                rm -Rf "$MTMOD_DEST_PATH"
                if [ -d "$MTMOD_DEST_PATH" ]; then
                    customExit "FAILED to remove '$MTMOD_DEST_PATH'"
                fi
            fi
        fi
        if [ -d "$MTMOD_GOT_NAME" ]; then
            # outer case is for safety in case variable is blank or something
            if [ ! -f "`command -v rsync`" ]; then
                cp -R $MTMOD_GOT_NAME "$MTMOD_DEST_PATH"
                if [ "$show_changes" != "false" ]; then
                    echo "$MTMOD_DEST_PATH"
                fi
            else
                if [ ! -d "$MTMOD_DEST_PATH" ]; then
                    mkdir -p "$MTMOD_DEST_PATH"
                fi
                if [ "$show_changes" != "false" ]; then
                    # rsync -rtv "$MTMOD_GOT_NAME/" "$MTMOD_DEST_PATH"
                    echo "    * preview of changes (before actual sync):"
                    rsync -zvc "$MTMOD_GOT_NAME/" "$MTMOD_DEST_PATH" --dry-run | grep -v '\.git' | grep -v '\./' | grep -v 'screenshot\.png' | grep -v received | grep -v 'DRY RUN'
                fi
                echo "    * synchronizing..."
                rsync -rt "$MTMOD_GOT_NAME/" "$MTMOD_DEST_PATH"
            fi
            minimize_mod $MTMOD_DEST_PATH $MTMOD_DEST_NAME
        fi
        if [ ! -d "$MTMOD_DEST_PATH" ]; then
            customExit "    MTMOD_DEST_PATH $MTMOD_DEST_PATH is not a directory."
        else
            echo "    [ + ] added as $MTMOD_DEST_PATH"
        fi
        cd
        #if [ -d GitHub/EnlivenMinetest ]; then
        #    cd GitHub/EnlivenMinetest
        #fi
    else
        echo " [ ~ ] skipped existing $MTMOD_DEST_PATH"
    fi
}

remove_mod()
{
    cd $HOME/Downloads
    MTMOD_DEST_NAME=$1
    THIS_MODS_PATH=$MT_MYGAME_MODS_PATH
    MTMOD_DEST_PATH=$THIS_MODS_PATH/$MTMOD_DEST_NAME
    if [ -d "$MTMOD_DEST_PATH" ]; then
        rm -Rf "$MTMOD_DEST_PATH"
        if [ -d "$MTMOD_DEST_PATH" ]; then
            echo "    ERROR in remove_mod: failed to remove $MTMOD_DEST_PATH, so cannot continue." > $err_txt
            cat $err_txt
        else
            echo "    [ - ] removed $MTMOD_DEST_PATH"
        fi
    else
        echo "    [ - ] already not present: $MTMOD_DEST_PATH"
    fi
    cd
    #if [ -d GitHub/EnlivenMinetest ]; then
    #    cd GitHub/EnlivenMinetest
    #fi
}
#echo "MT_MYGAME_MODS_PATH: $MT_MYGAME_MODS_PATH"
echo
echo
echo "To preconfigure, write true or false to files in $CONFIG_PATH named:"
echo "    local_enable"
#echo "    enable_version_0_5"
echo
echo "Using following configuration:"
#if [ -z "$enable_version_0_5" ]; then
#    echo "    enable_version_0_5: (auto--set this var before pasting region into terminal)"
#else
echo "    enable_version_0_5: $enable_version_0_5"
#fi
if [ -z "$local_enable" ]; then
    echo "    local_enable: (auto--set this var before pasting region into terminal)"
else
    echo "    local_enable: $local_enable"
fi
echo "    USR_SHARE_MINETEST: $USR_SHARE_MINETEST"
echo "    MT_MYGAMES_DIR: $MT_MYGAMES_DIR"
echo "    MT_MYGAME_DIR: $MT_MYGAME_DIR"
echo "    MT_WORLDS_DIR: $MT_WORLDS_DIR"
echo "    MT_MYWORLD_NAME: $MT_MYWORLD_NAME"
echo "    MT_MINETEST_GAME_PATH: $MT_MINETEST_GAME_PATH"
if [ ! -f "`command -v rsync`" ]; then
    echo
    echo "The 'rsync' command was not found. Installing rsync will reduce writes to drive if you run install methods (as all use add_mod_from_here) more than once for the same mod."
    echo
fi
echo "# * minetestenv.rc finished loading." >> "$err_txt"