Start an R session in this directory (02-spice)

• RStudio users, open the *.Rproj file in this directory

Build the project:

remake::make()

Fetch the ragout:

remake::fetch("ragout")

Modify raw_meat.txt in this directory

• Change the contents to <adjective> meat, e.g., marinated meat

Build the project again. How has the output changed?

• If nothing changes, check that you have the latest version of the cooking package installed

Fetch the ragout again. Has it changed?

Modify raw_meat.txt in this directory again

• Add a second line with arbitrary contents, e.g., from supermarket

Build the project again. How has the output changed?

• Why is the fried_meat target not rebuilt?

  • Hint: Run cooking::chop("raw_meat.txt") in your R session

Edit remake.yml to spice up the frying rule with any spice of your choice, like this:

  fried_meat:
    command: fry(chopped_meat, with = I(c("oil", "pepper")))

Build the project

Fetch the updated ragout:

remake::fetch("ragout")

What has changed?