updatevimplugin: add option to install to opt/

script/installvimplugin

@@ -1,16 +1,33 @@
 #!/usr/bin/env bash
 #
 # Install a vim plugin from Git (into start directory for now)
+# Use with `-o` argument to install permanently to opt/
 
 set -e
 
-if [ -z "$1" ]; then
+if [ "$1" = "-o" ]; then
+  opt=1
+  destdir="$HOME/.vim/pack/git-plugins/opt"
+  giturl="$2"
+else
+  opt=0
+  destdir="$HOME/.vim/pack/git-plugins/start"
+  giturl="$1"
+fi
+
+if [ -z "$giturl" ]; then
   echo "Usage: installvimplugin <git url>"
   exit 1
 fi
 
-basename=$(basename "$1" .git)
-dirname="$HOME/.vim/pack/git-plugins/start"
-mkdir -p "$dirname"
-cd "$dirname"
+mkdir -p "$destdir"
+basename=$(basename "$giturl" .git)
+cd "$destdir"
 git clone https://github.com/dense-analysis/ale.git "$basename"
+
+echo "Installed to $destdir/$basename"
+
+if [ $opt = 1 ]; then
+  echo "Add the following line to $HOME/.vimrc:"
+  echo "packadd! $basename \" $giturl"  
+fi