Updated install.sh

install.sh

@@ -2,15 +2,18 @@
 
 VERSION=1.0.0
 
-arch=$(uname -sm)
+print_error() {
+    echo "No binary found for your architecture. If your architecture is compatible with a binary"
+    echo "that's already on GitHub, you can manually download and install it and open an issue"
+    echo "saying so. Otherwise, create an issue requesting binaries to be build for your"
+    echo "architecture and you can build from source in the meantime if you like."
+}
 
-case "$arch" in
-    Linux\ *64)   arch=linux_amd64   ;;
-esac
-
-curl -L https://github.com/cjbassi/gotop/releases/download/$VERSION/gotop-$arch.tgz > /tmp/gotop.tgz
+install() {
+    curl -L https://github.com/cjbassi/gotop/releases/download/$VERSION/gotop-${1}.tgz > /tmp/gotop.tgz
     tar xf /tmp/gotop.tgz -C /usr/bin
     rm /tmp/gotop.tgz
+}
 
 update() {
     cur_version=$(gotop -v 2>/dev/null)
@@ -21,3 +24,12 @@ update() {
         download
     fi
 }
+
+arch=$(uname -sm)
+case "$arch" in
+    Linux\ x86_64)  install linux_amd64 ;;
+    *)
+        print_error
+        exit 1
+        ;;
+esac