Add script to swap in a ~/.config/nvim/lua/grs link to repo

 - to keep sumneko_lua from getting confused
 - temporary until I know how to configure sumneko_lua better?

grsSwap

@@ -0,0 +1,31 @@
+#!/usr/bin/fish
+#
+#  Toggle in a symlink ~/.config/nvim/lua -> .../dotfiles/config/nvim/lua
+#
+#  Sumneko_lua, at least when configured with the Neovim runtime
+#  path, will put ~/.config/nvim files into its "workspace" in ways
+#  which override the corresponding source repo source files.
+#
+#  This script is a temporary hack until I better understand how 
+#  to configure sumneko_lua not to do this.
+#
+#  TODO: Make this a function, otherwise cd commands don't work.
+#        This is is due to script running in another process.
+#
+
+set -q XDG_CONFIG_HOME; or set -lx XDG_CONFIG_HOME ~/.config
+set -q DOTFILE_GIT_REPO; or set -gx DOTFILE_GIT_REPO ~/devel/dotfiles
+
+if test -d ~/.config/nvim_lua_grs_backup
+   rm $XDG_CONFIG_HOME/nvim/lua/grs
+   mv $XDG_CONFIG_HOME/nvim_lua_grs_backup $XDG_CONFIG_HOME/nvim/lua/grs
+   printf '\nEdit Neovim config files directly in %s.' $DOTFILE_GIT_REPO
+   printf '\nIssue git commands from dotfiles repo, %s.\n' $DOTFILE_GIT_REPO
+   cd $DOTFILE_GIT_REPO
+else
+   mv ~/.config/nvim/lua/grs ~/.config/nvim_lua_grs_backup
+   ln -s $DOTFILE_GIT_REPO/config/nvim/lua/grs $XDG_CONFIG_HOME/nvim/lua/grs
+   printf '\nEdit Neovim config files thru %s/nvim link.' $XDG_CONFIG_HOME
+   printf '\nStill issue git commands from %s.\n' $DOTFILE_GIT_REPO
+   cd $XDG_CONFIG_HOME/nvim
+end