Feature/installation script (#288)

* Added install.sh file

* Removed tmp files

.gitignore

@@ -73,6 +73,9 @@ fabric.properties
 # Linux trash folder which might appear on any partition or disk
 .Trash-*
 
+# macOS
+.DS_Store
+
 # .nfs files are created when an open file is removed but is still being accessed
 .nfs*
 ### Windows template

install.sh

@@ -0,0 +1,153 @@
+#!/bin/bash
+
+# Copyright Ferret Author(s) 2019
+version=$(curl -sI https://github.com/MontFerret/ferret/releases/latest | grep Location | awk -F"/" '{ printf "%s", $NF }' | tr -d '\r')
+if [ ! $version ]; then
+    echo "Failed while attempting to install ferret-cli. Please manually install:"
+    echo ""
+    echo "1. Open your web browser and go to https://github.com/MontFerret/ferret/releases"
+    echo "2. Download the latest release for your platform."
+    echo "3. chmod +x ./ferret"
+    echo "4. mv ./ferret /usr/local/bin"
+    exit 1
+fi
+
+hasCli() {
+    has=$(which ferret)
+
+    if [ "$?" = "0" ]; then
+        echo
+        echo "You already have the ferret!"
+        export n=3
+        echo "Overwriting in $n seconds.. Press Control+C to cancel."
+        echo
+        sleep $n
+    fi
+
+    hasCurl=$(which curl)
+
+    if [ "$?" = "1" ]; then
+        echo "You need curl to use this script."
+        exit 1
+    fi
+
+    hasTar=$(which tar)
+
+    if [ "$?" = "1" ]; then
+        echo "You need tar to use this script."
+        exit 1
+    fi
+}
+
+checkHash(){
+    sha_cmd="sha256sum"
+
+    if [ ! -x "$(command -v $sha_cmd)" ]; then
+        sha_cmd="shasum -a 256"
+    fi
+
+    if [ -x "$(command -v $sha_cmd)" ]; then
+
+    (cd $targetDir && curl -sSL $baseUrl/ferret_checksums.txt | $sha_cmd -c >/dev/null)
+        if [ "$?" != "0" ]; then
+            # rm $targetFile
+            echo "Binary checksum didn't match. Exiting"
+            exit 1
+        fi
+    fi
+}
+
+getPackage() {
+    uname=$(uname)
+    userid=$(id -u)
+
+    platform=""
+    case $uname in
+    "Darwin")
+    platform="_darwin"
+    ;;
+    "Linux")
+    platform="_linux"
+    ;;
+    esac
+
+    uname=$(uname -m)
+    arch=""
+    case $uname in
+    "x86_64")
+    arch="_x86_64"
+    ;;
+    esac
+    case $uname in
+    "aarch64")
+    arch="_arm64"
+    ;;
+    esac
+
+    if [ "$arch" == "" ]; then 
+        echo "${$arch} is not supported. Exiting"
+        exit 1
+    fi
+
+    suffix=$platform$arch
+    targetDir="/tmp/ferret$suffix"
+    
+    if [ "$userid" != "0" ]; then
+        targetDir="$(pwd)/ferret$suffix"
+    fi
+
+    if [ ! -d $targetDir ]; then
+        mkdir $targetDir
+    fi
+
+    targetFile="$targetDir/ferret"
+
+    if [ -e $targetFile ]; then
+        rm $targetFile
+    fi
+
+    baseUrl=https://github.com/MontFerret/ferret/releases/download/$version
+    url=$baseUrl/ferret$suffix.tar.gz
+    echo "Downloading package $url as $targetFile"
+
+    curl -sSL $url | tar xz -C $targetDir
+
+    if [ "$?" = "0" ]; then
+
+    # checkHash
+
+    chmod +x $targetFile
+
+    echo "Download complete."
+       
+        if [ "$userid" != "0" ]; then
+            echo
+            echo "=========================================================" 
+            echo "==    As the script was run as a non-root user the     =="
+            echo "==    following commands may need to be run manually   =="
+            echo "========================================================="
+            echo
+            echo "  sudo cp $targetFile /usr/local/bin/ferret"
+            echo "  rm -rf $targetDir"
+            echo
+        else
+            echo
+            echo "Running as root - Attempting to move $targetFile to /usr/local/bin"
+
+            mv $targetFile /usr/local/bin/ferret
+        
+            if [ "$?" = "0" ]; then
+                echo "New version of ferret installed to /usr/local/bin"
+            fi
+
+            if [ -d $targetDir ]; then
+                rm -rf $targetDir
+            fi
+
+            ferret version
+        fi
+    fi
+}
+
+hasCli
+getPackage