CLion Updater

update-clion

#!/bin/bash

KEEP_TAR='false'
TAR_FILE=''

while getopts 'hkt:' flag; do
    case "$flag" in
        k)
            KEEP_TAR='true'
            ;;
        t)
            TAR_FILE="$OPTARG"
            ;;
        h)
            echo "Usage: $0 [-h] [-k] [-t tar file path]"
            echo "  -k	Keep the downloaded tar file"
            echo "  -t	Use an already downloaded tar file"
            exit 0
    esac

done
shift $(( $OPTIND - 1 ))

DEST_DIR="${1:-$HOME/usr/share/clion}"

download_in_temp() {
    local tar_dir="$( mktemp -d )"
    builtin cd "$tar_dir"
    curl -L \
        'https://data.services.jetbrains.com/products/download?code=CL&platform=linux' \
        -o clion.tar.gz
    echo "$tar_dir/clion.tar.gz"
}

extract_and_replace() {
    local tar_file="$1"
    local dest_dir="$2"
    local latest_version_dir

    builtin cd "$( dirname $dest_dir )"

    if [[ -s $dest_dir ]]; then
        rm -rf $dest_dir
    elif [[ -d $dest_dir ]]; then
        read -p "$dest_dir exists. Remove? [Y/n] " ans
        if [[ $ans == 'n' ]]; then
            echo "Renaming to ${dest_dir}_old"
            mv $dest_dir  ${dest_dir}_old
        else
            rm -rf $dest_dir
        fi
    fi

    echo 'Unpacking tar file'
    tar xzf "$tar_file"
    latest_version_dir="$( find . -maxdepth 1 -name 'clion-*' -type d | sort -r | head -n 1 )"
    ln -sf $latest_version_dir ./clion

    if $KEEP_TAR; then
        echo "Saved tar file at $tar_file"
    else
        echo 'Removing tar file'
        rm -rf $tar_file
    fi
}

if [[ -z $TAR_FILE ]]; then
    echo 'Downloading latest CLion'
    TAR_FILE="$( download_in_temp )"
fi

extract_and_replace "$TAR_FILE" "$DEST_DIR"