Upload a file to an http://, ftp://, or sftp:// (ssh)
server. Uploading to HTTP means performing an HTTP PUT on that URL.
Be aware that sftp is only available for libcurl clients built with libssh2.
curl_upload(file, url, verbose = TRUE, reuse = TRUE, ...)connection object or path to an existing file on disk
where to upload, should start with e.g. ftp://
emit some progress output
try to keep alive and recycle connections when possible
other arguments passed to handle_setopt(), for
example a username and password.
if (FALSE) # Upload package to winbuilder:
curl_upload('mypkg_1.3.tar.gz', 'ftp://win-builder.r-project.org/R-devel/')
# \dontrun{}