fritools (version 4.6.0)

file_copy: Force Copying a File While Backing it up

Description

file.copy has an argument overwrite that allows for overwriting existing files. But I often want to overwrite an existing file while creating a backup copy of that file.

Usage

file_copy(from, to, stop_on_error = FALSE, ...)

Value

A vector of boolean values indicating success or failure.

Arguments

from

See file.copy.

to

See file.copy.

stop_on_error

Throw an exception on error?

...

Arguments passed to file.copy.

See Also

Other file utilities: clipboard_path(), delete_trailing_blank_lines(), delete_trailing_whitespace(), develop_test(), file_modified_last(), file_save(), file_string(), find_files(), get_lines_between_tags(), get_mtime(), get_unique_string(), grep_file(), is_files_current(), is_path(), paths, runsed(), search_files(), split_code_file(), touch()

Other operating system functions: clipboard_path(), file_save(), get_boolean_envvar(), get_run_r_tests(), is_installed(), is_r_package_installed(), is_success(), is_windows(), view(), vim(), wipe_tempdir(), with_dir()

Examples

touch(f1 <- file.path(tempdir(), "first.R"),
      f2 <- file.path(tempdir(), "second.R"))
dir.create(t <- file.path(tempdir(), "foo"))
file_copy(from = c(f2, f1), to = t)
dir(t)
touch(f1)
touch(f2)
file_copy(from = c(f2, f1), to = t)
dir(t)
list.files(tempdir(), pattern = "first.*\\.R")
dir <- file.path(tempdir(), "subdir")
dir.create(dir)
file_copy(f1, dir)
touch(f1)
file_copy(f1, dir)
list.files(dir, pattern = "first.*\\.R")