Extract the file name from some URL

Source: R/install.R

Gets a character of link to some file, and returns the name of the file in this link.

file.name.from.url(URL, rm.params = FALSE)

Arguments

URL

Some url to a file.
rm.params

(optional, default=FALSE). Whether or not to remove query parameters from URL.

Value

The name of the file in the URL

Details

The install.packages.zip must use this function, since it is crucial that the name of the file into which the ZIPPED package is downloaded to the computer, will have the same name as the file which is online.

See also

install.URL, install.packages.zip

Examples

if (FALSE) {
url <- "https://cran.r-project.org/bin/windows/base/R-2.15.3-win.exe"
file.name.from.url(url) # returns: "R-2.15.3-win.exe"

url <- "https://bioconductor.org/packages/R/genetics?version=5.01&f=gz"
file.name.from.url(url, rm.params=TRUE)  # returns: "genetics?version=5.01&f=gz"
file.name.from.url(url, rm.params=FALSE) # returns: "genetics"
file.name.from.url(url)                  # returns: "genetics"
}