git-generate-license

#!/usr/bin/env sh

version() {
    echo "git license generator v1.0"
}

licenselist() {

    echo "1-) Apache License 2.0"
    echo "2-) GNU General Public License v3.0"
    echo "3-) MIT License"
    echo "4-) BSD 2-Clause \"Simplified\" License"
    echo "5-) BSD 3-Clause \"New\" or \"Revised\" License"
    echo "6-) Eclipse Public License 2.0"
    echo "7-) GNU Affero General Public License v3.0"
    echo "8-) GNU General Public License v2.0"
    echo "9-) GNU Lesser General Public License v2.1"
    echo "10-) GNU Lesser General Public License v3.0"
    echo "11-) Mozilla Public License 2.0"
    echo "12-) The Unlicense"
    echo "13-) Do What The Fuck You Want To Public License"
}

usage() {
    echo "usage: git generate-license <license-name>"
    echo
    echo "Available commands are:"
    echo "git generate-license -l | --list -- Print out all available licenses"
    echo "git generate-license -s | --select -- License selection"
    echo "git generate-license -h | --help"
}

selectlicense() {
    
    clear
    licenselist
    
    echo "Exit: 0"

    echo
    echo "Select a license. Please input a number: "
    echo
    
    read selectedlicense

    clear
    echo
    licenselist
    echo

    echo > "$(pwd)/LICENSE.md"
    case $selectedlicense in
        "1")
            cat "/usr/local/bin/apache-v2.md" >> "$(pwd)/LICENSE.md"
            echo "Apache License 2.0 Generated"; exit 0
            ;;
        "2")
            cat "/usr/local/bin/gpl-v3.md" >> "$(pwd)/LICENSE.md"
            echo "GNU General Public License v3.0 Generated"; exit 0
            ;;
        "3")
            cat "/usr/local/bin/mit.md" >> "$(pwd)/LICENSE.md"
            echo "MIT License Generated"; exit 0
            ;;
        "4")
            cat "/usr/local/bin/bsd-v2-clause.md" >> "$(pwd)/LICENSE.md"
            echo "BSD 2-Clause \"Simplified\" License Generated"; exit 0
            ;;
        "5")
            cat "/usr/local/bin/bsd-v3-clause.md" >> "$(pwd)/LICENSE.md"
            echo "BSD 3-Clause \"New\" or \"Revised\" License"; exit 0
            ;;
        "6")
            cat "/usr/local/bin/epl-v2.md" >> "$(pwd)/LICENSE.md"
            echo "Eclipse Public License 2.0 Generated"; exit 0
            ;;
        "7")
            cat "/usr/local/bin/agpl-v3.md" >> "$(pwd)/LICENSE.md"
            echo "GNU Affero General Public License v3.0 Generated"; exit 0
            ;;
        "8")
            cat "/usr/local/bin/gpl-v2.md" >> "$(pwd)/LICENSE.md"
            echo "GNU General Public License v2.0 Generated"; exit 0
            ;;
        "9")
            cat "/usr/local/bin/lgpl-v2-1.md" >> "$(pwd)/LICENSE.md"
            echo "GNU Lesser General Public License v2.1 Generated"; exit 0
            ;;
        "10")
            cat "/usr/local/bin/lgpl-v3.md" >> "$(pwd)/LICENSE.md"
            echo "GNU Lesser General Public License v3.0 Generated"; exit 0
            ;;
        "11")
            cat "/usr/local/bin/mpl-v2.md" >> "$(pwd)/LICENSE.md"
            echo "Mozilla Public License 2.0 Generated"; exit 0
            ;;
        "12")
            cat "/usr/local/bin/unlicense.md" >> "$(pwd)/LICENSE.md"
            echo "The Unlicense Generated"; exit 0
            ;;
        "13")
            cat "/usr/local/bin/wtfpl.md" >> "$(pwd)/LICENSE.md"
            echo "Do What The Fuck You Want To Public License Generated"; exit 0
            ;;
    esac
    
}

main() {
    if [ "$#" -lt 1 ]; then
        usage; exit 1
    fi

    local subcommand="$1"; shift

    case $subcommand in
        "-h"|"--help")
            usage; exit 0
            ;;
        "-v"|"--version")
            version; exit 0
            ;;
        "-l"|"--list")
            licenselist; exit 0
            ;;
        "-s"|"--select")
            selectlicense; exit 0
            ;;
    esac
}

main "$@"