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Temporarily change library paths.

Usage

with_libpaths(new, code, action = "replace")

local_libpaths(new = list(), action = "replace", .local_envir = parent.frame())

Arguments

new

[character]
New library paths

code

[any]
Code to execute in the temporary environment

action

[character(1)]
should new values "replace", "prefix" or "suffix" existing paths.

.local_envir

[environment]
The environment to use for scoping.

Value

[any]
The results of the evaluation of the codeargument.

See also

withr for examples

.libPaths()

Other libpaths: with_temp_libpaths()

Examples

.libPaths()
#> [1] "/home/runner/work/_temp/Library" "/opt/R/4.1.2/lib/R/library"     
new_lib <- tempfile()
dir.create(new_lib)
with_libpaths(new_lib, print(.libPaths()))
#> [1] "/tmp/RtmpR75In3/file258d10187e8a" "/opt/R/4.1.2/lib/R/library"      
unlink(new_lib, recursive = TRUE)