print-svg

#!/bin/bash
set -eu -o pipefail
safe_source () { [[ ! -z ${1:-} ]] && source $1; _dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"; _sdir=$(dirname "$(readlink -f "$0")"); }; safe_source
# end of bash boilerplate


show_help(){
    cat <<HELP

    $(basename $0) [options] file.svg

        Prints the file.svg from default printer via lpr.

    Options:
        --test              : flip all objects vertically to generate test output
        --remote [target]   : print over remote machine via ssh. Default target is "pcb".
        --list              : list available printers

HELP
    exit
}

die(){
    echo "$1"
    show_help
    exit 1
}

# Parse command line arguments
# ---------------------------
# Initialize parameters
list_printers=false
test_mode=false
remote_printer=
# ---------------------------
args=("$@")
_count=1
while :; do
    key="${1:-}"
    case $key in
        -h|-\?|--help|'')
            show_help    # Display a usage synopsis.
            exit
            ;;
        # --------------------------------------------------------
        --list) shift
            list_printers=true
            ;;
        --test) shift
            test_mode=true
            ;;
        --remote) shift
            remote_printer=${1:-pcb}
            ;;

        # --------------------------------------------------------
        -*) # Handle unrecognized options
            echo
            echo "Unknown option: $1"
            show_help
            exit 1
            ;;
        *)  # Generate the positional arguments: $_arg1, $_arg2, ...
            [[ ! -z ${1:-} ]] && declare _arg$((_count++))="$1" && shift
    esac
    [[ -z ${1:-} ]] && break
done; set -- "${args[@]}"
# use $_arg1 in place of $1, $_arg2 in place of $2 and so on, "$@" is intact

if [[ $list_printers = true ]]; then
    echo "----------------------------------------------------------------------"
    lpstat -p -d | cut -d '.' -f 1
    exit
    echo "----------------------------------------------------------------------"
fi

echo "----------------------------------------------------------------------"
echo "Using $(lpstat -p -d | grep default | cut -d: -f2)"
echo "----------------------------------------------------------------------"

[[ -z $_arg1 ]] && die "Filename is required."

filename="$_arg1"

if [[ $test_mode = true ]]; then
    # this opens inkscape and performs necessary operations.
    # you are responsible for printing.
    inkscape -g                             \
        --verb=EditSelectAll                \
        --verb=ObjectFlipHorizontally       \
        --verb=EditDeselect                 \
        --verb=FilePrint                    \
        --verb EditUndo                     \
        --verb FileQuit                     \
        "$filename"
elif [[ $remote_printer != "" ]]; then
    inkscape --without-gui --export-pdf=/dev/stdout "$filename" | ssh $remote_printer lpr
else
    # use default printer
    inkscape --without-gui --export-pdf=/dev/stdout "$filename" | lpr
fi