bug#50483: [R] Package r-shiny: Shiny server logic inactive

[Charles]

Hello, I am responsible to updating the minify build syste to use the updated 
uglifyjs (now node-uglify-js found in gnu/packages/uglifyjs.scm). When updating 
I noticed that some R packages had the input uglify-js (the old lisp one). I 
chose not mess with them at risk of breaking. What I failed to realize is that 
some R packages (like r-shiny) actually use the minify build-system to do the 
minifying, thus trying to call the updated uglifyer, while only importing the 
new one. Other R package like (r-shinytree) do not use the minify build system 
and instead directly call uglify-js using open-pipe* (these are the ones I 
didn't want to break).

I would highly suggest against using the old lisp uglifyer since it is outdated 
by 6 years, and if anyone decides to write some modern javascript, your package 
will break. Instead simply update the input to ("node-uglify-js" 
,node-uglify-js) and don't forget to use module (gnu packages uglifyjs). For 
the packages like r-shinytree, I would suggest having them use the minify-build 
system like r-shiny (and also updating to the newer node-uglify-js). I have 
tested updaing the input, and it works for the ggplot2 example stated earlier 
in this thread.

Again I'm really sorry for not catching this. It is very late where I am, so if 
it isn't clear how to update, I can do it tomorrow.