Cache function script

[vreuter]

I've wrapped some simpleCache calls in functions so that I can reuse a cache across scripts without assuming (with loadCaches) that a cache already exists while also trying to avoid duplication of the code responsible for creating the cache. This exploits the hook provided by the fact that projectInit sources the 00-init.R file but does so at the cost of cluttering that file. It'd be cool to have a similar hook for cache creation functions. Pragmatically, modestly related to databio/simpleCache#18

[nsheff]

Right, exactly what buildDir was originally intended to do. In this setting, you specify a directory, and then just provide a file with the same name as the cache, and that's where your instructions are.

So, not a function, but a file, but otherwise, exactly what you're saying. You could make your buildDir to be src/build-caches and then have a file:

src/build-caches/aggregateData.R

Then simpleCache("aggregateDate.R") will automatically check in src/build-caches/aggregateData.R since you did not provide an instruction.