source() path relative to the current script directory?

Question

In my main R script, I am doing source("some/path/script1.R"). This script includes another script in that directory:

source("script2.R")
...

Now, this will not work. The simplest solution is to use source("some/path/script2.R") in script1.R. But that's ugly, and not robust at all - it can break if directories some/path change. I want reasonable solution where script1.R includes script2.R irrespective of how some/path looks like.

Is there a reasonably simple way to specify source() path relative to the current script?

Answer 1

You can use :

source("file.R", chdir = TRUE)