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Download File(s) from the Internet

download_file.Rd

download_file() is a vectorized version of utils::download.file() that does not rely on specifying the "libcurl" method for vectorization.

Usage

download_file(url, dest_file, on_failure = "warn", ...)

Arguments

url

A character vector naming the URL of resource(s) to be downloaded.

dest_file

A character vector with the file path(s) where downloaded file(s) will be saved.

on_failure

A string indicating how to handle download failure:

  • "warn" - produce a warning; includes exit codes for debugging

  • "abort" - abort execution

  • "list_failed" - list URLs that failed (output format differs, see Value)

  • "warn-list_failed" - combination of "warn" and "list_failed"

  • "skip" - do nothing

...

Additional arguments passed on to utils::download.file().

Value

Unless on_failure includes "list_failed", the successfully downloaded dest_file(s); otherwise, a 2-vector list where successful = dest_file(s) and failed = url(s).