Beaver Install Script

install.sh

#!/bin/bash
# 
# MIT License
#
# Copyright (c) 2019 Anthony Lomeli
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# 

# Variables
BEAVER_VERSION="0.0.1"
BEAVER_TEMP_ZIP="$HOME/beaver.zip"
BEAVER_PLATFORM="null"
BEAVER_RELEASE_REPO="https://github.com/Lomeli12/Beaver/releases/download"
BASH_RC="$HOME/.bash_rc"

if [ -z "$BEAVER_HOME" ];
    BEAVER_HOME="$HOME/.beaver"
fi

freshInstall=true;

echo "Welcome to..."
echo "  ____  ______     __      ________ _____   "
echo " |  _ \|  ____|   /\ \    / /  ____|  __ \  "
echo " | |_) | |__     /  \ \  / /| |__  | |__) | "
echo " |  _ <|  __|   / /\ \ \/ / |  __| |  _  /  "
echo " | |_) | |____ / ____ \  /  | |____| | \ \  "
echo " |____/|______/_/    \_\/   |______|_|  \_\ "
echo -e "Now attempting to install...\n"

# Sanity checks
case "$OSTYPE" in
    "linux-gnu"*)
        BEAVER_PLATFORM="linux"
        ;;
    "darwin"*)
        BEAVER_PLATFORM="mac"
        ;;
    "msys"*)
        BEAVER_PLATFORM="windows";
        ;;
    "win32"*)
        echo "Please install MSYS2 and run this script through Mingw64 launcher."
        echo "Terminating install."
        exit
        ;;
esac

if [ -z $(which unzip) ]; then
    echo "Please install unzip on your system, then restart the installation"
    echo "Terminating install."
    exit
fi

# Remove any previous versions/create BEAVER_HOME
if [ ! -d $BEAVER_HOME ]; then
    echo "Creating BEAVER_HOME."
    mkdir $BEAVER_HOME
else
    echo "Uninstalling previous version."
    rm -rf $BEAVER_HOME
    mkdir $BEAVER_HOME
    freshInstall=false
fi

# Download appropriate beaver zip
curl --location --progress-bar "$BEAVER_RELEASE_REPO/$BEAVER_VERSION/beaver-$BEAVER_VERSION-$BEAVER_PLATFORM.zip"

# Check if beaver zip survived the trip
ZIP_VALID=$(unzip -qt "$BEAVER_TEMP_ZIP" | grep 'No errors detected in compressed data')
if [[ -z "$ZIP_VALID" ]]; then
    echo "Something went wrong when downloading Beaver."
    echo "Please check your internet connection, then restart the installation."
    echo "Terminating install."
    rm -rf $BEAVER_HOME > /dev/null
    rm -rf $BEAVER_TEMP_ZIP > /dev/null
    exit
fi

# Unzip beaver zip
echo "Unzipping Beaver."
unzip $BEAVER_TEMP_ZIP -d $BEAVER_HOME > /dev/null

# Add to path if necessary
if [[ $freshInstall == 'true' ]]; then
    echo "Adding BEAVER_HOME to PATH."
    echo "export BEAVER_HOME=$BEAVER_HOME" >> $BASH_RC
    echo "export PATH=$BEAVER_HOME/bin:$PATH" >> $BASH_RC
    source $BASH_RC
fi

# Remove beaver zip
echo "Cleaning up install."
rm -f $BEAVER_TEMP_ZIP

# Congrats, we somehow made it!
echo -e "\nAll done! Enjoy using Beaver!!"