Created kvmsetup.sh script to bootstrap OSX/*nix systems

kvmsetup.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+set -e
+
+_kvmsetup_has() {
+  type "$1" > /dev/null 2>&1
+  return $?
+}
+
+if [ -z "$KRE_USER_HOME" ]; then
+  eval KRE_USER_HOME=~/.kre
+fi
+
+if ! _kvmsetup_has "curl"; then
+  echo "kvmsetup requires curl to be installed"
+  return 1
+fi
+
+if [ -z "$KVM_SOURCE" ]; then
+  KVM_SOURCE="https://raw.githubusercontent.com/graemechristie/Home/KvmShellImplementation/kvm.sh"
+fi
+
+# Downloading to $KVM_DIR
+mkdir -p "$KRE_USER_HOME/kvm"
+if [ -s "$KRE_USER_HOME/kvm/kvm.sh" ]; then
+  echo "=> kvm is already installed in $KRE_USER_HOME/kvm, trying to update"
+else
+  echo "=> Downloading kvm as script to '$KRE_USER_HOME/kvm'"
+fi
+
+curl -s "$KVM_SOURCE" -o "$KRE_USER_HOME/kvm/kvm.sh" || {
+  echo >&2 "Failed to download '$KVM_SOURCE'.."
+  return 1
+}
+
+
+echo
+
+# Detect profile file if not specified as environment variable (eg: PROFILE=~/.myprofile).
+if [ -z "$PROFILE" ]; then
+  if [ -f "$HOME/.bash_profile" ]; then
+    PROFILE="$HOME/.bash_profile"
+  elif [ -f "$HOME/.zshrc" ]; then
+    PROFILE="$HOME/.zshrc"
+  elif [ -f "$HOME/.profile" ]; then
+    PROFILE="$HOME/.profile"
+  fi
+fi
+
+SOURCE_STR="[ -s \"$KRE_USER_HOME/kvm/kvm.sh\" ] && . \"$KRE_USER_HOME/kvm/kvm.sh\"  # This loads kvm"
+
+if [ -z "$PROFILE" ] || [ ! -f "$PROFILE" ] ; then
+  if [ -z $PROFILE ]; then
+    echo "=> Profile not found. Tried ~/.bash_profile ~/.zshrc and ~/.profile."
+    echo "=> Create one of them and run this script again"
+  else
+    echo "=> Profile $PROFILE not found"
+    echo "=> Create it (touch $PROFILE) and run this script again"
+  fi
+  echo "   OR"
+  echo "=> Append the following line to the correct file yourself:"
+  echo
+  echo "   $SOURCE_STR"
+  echo
+else
+  if ! grep -qc 'kvm.sh' $PROFILE; then
+    echo "=> Appending source string to $PROFILE"
+    echo "" >> "$PROFILE"
+    echo $SOURCE_STR >> "$PROFILE"
+  else
+    echo "=> Source string already in $PROFILE"
+  fi
+fi
+
+echo "=> Close and reopen your terminal to start using kvm"