install.sh

#!/usr/bin/env bash

set -e

BIN_PATH=$HOME/.local/bin
BIN_NAME=parnas
WRAPPER_URL='https://raw.githubusercontent.com/sndl/parnas/master/parnas.sh'

download_wrapper () {
    mkdir -p ${BIN_PATH}
    curl -s ${WRAPPER_URL} -o ${BIN_PATH}/${BIN_NAME}
    chmod +x ${BIN_PATH}/${BIN_NAME}
}

check_path () {
    if [[ $(echo $PATH | grep ${BIN_PATH}) == "" ]]; then
        echo "Looks like $BIN_PATH is not in path. Would you like to set it automatically? (yes/no):"

        read confirmation
        [[ ${confirmation} == "yes" ]] && set_path
    fi
}

set_path () {
    local sh_rc_path=''
    local export_path=''

    case $SHELL in
    /bin/bash)
        sh_rc_path=$HOME/.bashrc
        export_path='export PATH="$HOME/.local/bin:$PATH"'
        ;;
    /bin/zsh)
        sh_rc_path=$HOME/.zshrc
        export_path='export PATH="$HOME/.local/bin:$PATH"'
        ;;
    /bin/tcsh)
        sh_rc_path=$HOME/.tcshrc
        export_path='set path = ($path $HOME/.local/bin)'
        ;;
    /bin/kshrc)
        sh_rc_path=$HOME/.kshrc
        export_path='export PATH="$HOME/.local/bin:$PATH"'
        ;;
    /bin/fish)
        sh_rc_path=$HOME/.config/fish/config.fish
        export_path='set -gx PATH $HOME/.local/bin $PATH'
        ;;
    *)
        echo "Unknown shell: $SHELL"
        exit 1
    esac

    grep -qxF "${export_path}" ${sh_rc_path} || echo ${export_path} >> ${sh_rc_path}
}

main () {
    download_wrapper
    check_path
}

main

exit 0