Make Shiny Autoreload Work

[TymekDev]

⚠️ Note: these changes include using :::. I guess it needs a workaround for CRAN to accept it.

Changes

Implements automatic reloading from #339.

With shiny.autoreload working I don't think we need to modify shiny.autoreload.pattern. Running rhino::build_js(watch = TRUE) and rhino::build_sass(watch = TRUE) outputs minified .js and .css files respectively. Shiny by default tracks .js and .css changes, so it will reload when either JS or CSS is built.

How to test

1. Install my forked version: pak::pak("TymekDev/rhino@autoreload")
2. (Optional) Initialize a new application: rhino::init()
3. Enable autoreload: options(shiny.autoreload = TRUE)
4. Run the app: shiny::runApp() (rhino::app won't work!)

This will work in new and old apps alike. The only thing that changed is the main module is not passed directly. Instead, an environment where it was loaded with box::use is passed. This allows box::reload to work.

[codecov-commenter]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (6926a37) 17.82% compared to head (e5d1a17) 17.56%.

❗ Current head e5d1a17 differs from pull request most recent head 735b984. Consider uploading reports for the commit 735b984 to get more accurate results

Files	Patch %	Lines
R/app.R	0.00%	10 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #528      +/-   ##
==========================================
- Coverage   17.82%   17.56%   -0.27%     
==========================================
  Files           9        9              
  Lines         404      410       +6     
==========================================
  Hits           72       72              
- Misses        332      338       +6     

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[TymekDev]

I have been using my forked version ever since opening this PR. I couldn't help but notice it is spamming warnings at times about modules not being found for removal:

Warning in rm(list = info$source_path, envir = loaded_mods) :
  object '/Users/tymek/work/<<snip>>.R' not found
Warning in rm(list = info$source_path, envir = loaded_mods) :
  object '/Users/tymek/work/<<snip>>.R' not found
Warning in rm(list = info$source_path, envir = loaded_mods) :
  object '/Users/tymek/work/<<snip>>.R' not found

It does not seem to affect anything. Leaving it here for transparency.

[kamilzyla]

Superseded by #559.