Prework

• I understand and agree to help guide.
• I understand and agree to contributing guide.
• New features take time and effort to create, and they take even more effort to maintain. So if the purpose of the feature is to resolve a struggle you are encountering personally, please consider first posting a "trouble" or "other" issue so we can discuss your use case and search for existing solutions first.

Proposal

Allow source to change directory when sourcing external scripts. Default to FALSE to be compatible (have exactly the same behavior) with current implementation.

targets::tar_source <- function (files = "R", chdir = FALSE, envir = targets::tar_option_get("envir")) 
{
    ...
    lapply(r_scripts, function(file) {
        # eval(parse(text = readLines(file, warn = FALSE)), envir = envir)
		source(file, local = envir, chdir = chdir, keep.source = FALSE)
        invisible()
    })
    invisible()
}

Alternatively sys.source could replace source