Corrupted lazy-load database when knitting `create-litr.Rmd`

[patrickvossler18]

When I get to the document and test section of knitting creat-litr.Rmd I get the following error message:

Error in eapply(ns_env(name), force, all.names = TRUE) : 
  lazy-load database '/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/litr/R/litr.rdb' is corrupt
Calls: local ... <Anonymous> -> unregister -> unregister_namespace -> eapply
In addition: Warning message:
In eapply(ns_env(name), force, all.names = TRUE) :
  internal error -3 in R_decompress1
Execution halted
Quitting from lines 1065-1072 (create-litr.Rmd) 
Error: Failed to run 'test_litr' in a new R session.
Execution halted
Error: Failed to run 'render_' in a new R session.
Execution halted

It appears this is happening when we call xfun::Rscript_call(test_litr). This error typically goes away after restarting one's R session, but we can't do that when we're knitting our file. I've also successfully replicated this error on a different computer.

From the discussion here and here, my guess is that this is happening because of changes tolitr after it has been loaded.

[patrickvossler18]

The fix that works for me is to unload the package before calling devtools::install(location_of_new) in test_litr:

test_litr <- function(install_old, location_of_new) {
  devtools::unload(params$package_name)
  devtools::install(location_of_new)
  out <- devtools::test(location_of_new)
  install_old()
  return(out)
}