auto detect need for recompile?

[cdriveraus]

auto detect need for recompile?

[andrjohns]

I'm not sure how much of a benefit this would bring, since the cost of the c++-generation is pretty trivial and is also needed on any change to rstan or StanHeaders. In terms of distribution, the compiled models can't be shipped with the package source anyway - the package and its models will always be compiled for each platform

[cdriveraus]

But in terms of working on the package it's a huge benefit to not have to recompile in order to work with changes to the rest of the software? I'm not talking about the c++ generation but the .dll etc compilation.

[andrjohns]

For local development, you can still follow the same steps like:

pkgbuild::compile_dll()
devtools::load_all()

[cdriveraus]

devtools load_all is no good, ctsem spawns separate r processes which load ctsem, and those load with the locally built version not the temporary devtools one.

[andrjohns]

What do you normally use for local development? Once you run pkgbuild::compile_dll() does this not still work?

[cdriveraus]

I just build all then restart rstudio --- the whole point is to avoid compiling the dll if I've only made changes to the .R files. Sorry if I'm missing something. edit: 'install package - ctrl-shift-b'

[andrjohns]

In that case, you can just run devtools::install(build=FALSE) and it will use the existing built dll files from the pkgbuild::compile_dll() call

[cdriveraus]

ok. but I have to keep track of it in my head and then use a different command. I'll see how annoying it is :)

[cdriveraus]

This was all based on some kind of misunderstanding / confusing interaction with rstudio config, sorry. recompilation on build is avoided so long as --keep-source is included in the build args and pre-clean before build is disabled.