#!/bin/bash
HEAD=/tmp/dwarfhead
header_separate() {
    cat > $HEAD << 'EOF'
#!/bin/sh
DIR="$(mktemp -td dwarf_$(basename "$0")XXXXX)"
ARG="-o offset=auto -o tidy_strategy=swap -o workers=4"
export APPDWARF_CMD=$(basename "$0")
dwarfs $ARG "$0" "$DIR" 2>/dev/null

"$DIR/AppRun" "$@"
fusermount -uz "$DIR"
rmdir "$DIR"
exit
EOF
}

header() {
    cat > $HEAD << 'EOF'
#!/bin/sh
DIR="/tmp/dwarf_$(basename "$0")$(echo "$0" | md5sum | head -c5)"
export APPDWARF_CMD=$(basename "$0")
if [ ! -d $DIR ]; then
    mkdir "$DIR"
    ARG="-o offset=auto -o tidy_strategy=swap -o workers=4"
    dwarfs $ARG "$0" "$DIR" 2>/dev/null
fi

"$DIR/AppRun" "$@"
fusermount -qu "$DIR"
rmdir "$DIR" 2> /dev/null
exit
EOF
}

header_folder() {
    echo '#!/bin/sh' > $HEAD
    echo DIR=\""$1"\" >> $HEAD
    cat >> $HEAD << 'EOF'
if [ ! -d "$DIR" ]; then
    mkdir "$DIR"
    ARG="-o offset=auto -o tidy_strategy=swap -o workers=4"
    dwarfs $ARG "$0" "$DIR" 2>/dev/null
else
    fusermount -u "$DIR"
    rmdir "$DIR"
fi
exit
EOF
}