Restore a project's dependencies from a lockfile, as previously generated by
snapshot()
. renv::restore()
compares packages recorded in the lockfile to
the packages installed in the project library. Where there are differences
it resolves them by installing the lockfile-recorded package into the
project library. If clean = TRUE
, restore()
will additionally delete any
packages in the project library that don't appear in the lockfile.
Usage
restore(
project = NULL,
...,
library = NULL,
lockfile = NULL,
packages = NULL,
exclude = NULL,
rebuild = FALSE,
repos = NULL,
clean = FALSE,
prompt = interactive()
)
Arguments
- project
The project directory. If
NULL
, then the active project will be used. If no project is currently active, then the current working directory is used instead.- ...
Unused arguments, reserved for future expansion. If any arguments are matched to
...
, renv will signal an error.- library
The library paths to be used during restore. See Library for details.
- lockfile
Path to a lockfile. When
NULL
(the default), therenv.lock
located in the root of the current project will be used.- packages
A subset of packages recorded in the lockfile to restore. When
NULL
(the default), all packages available in the lockfile will be restored. Any required recursive dependencies of the requested packages will be restored as well.- exclude
A subset of packages to be excluded during restore. This can be useful for when you'd like to restore all but a subset of packages from a lockfile. Note that if you attempt to exclude a package which is required as the recursive dependency of another package, your request will be ignored.
- rebuild
Force packages to be rebuilt, thereby bypassing any installed versions of the package available in the cache? This can either be a boolean (indicating that all installed packages should be rebuilt), or a vector of package names indicating which packages should be rebuilt.
- repos
The repositories to use when restoring packages installed from CRAN or a CRAN-like repository. By default, the repositories recorded in the lockfile will be, ensuring that (e.g.) CRAN packages are re-installed from the same CRAN mirror.
Use
repos = getOptions(repos)
to override with the repositories set in the current session, or see therepos.override
option in config for an alternate way override.- clean
Boolean; remove packages not recorded in the lockfile from the target library? Use
clean = TRUE
if you'd like the library state to exactly reflect the lockfile contents afterrestore()
.- prompt
Boolean; prompt the user before taking any action? For backwards compatibility,
confirm
is accepted as an alias forprompt
.
Examples
if (FALSE) {
# disable automatic snapshots
auto.snapshot <- getOption("renv.config.auto.snapshot")
options(renv.config.auto.snapshot = FALSE)
# initialize a new project (with an empty R library)
renv::init(bare = TRUE)
# install digest 0.6.19
renv::install("digest@0.6.19")
# save library state to lockfile
renv::snapshot()
# remove digest from library
renv::remove("digest")
# check library status
renv::status()
# restore lockfile, thereby reinstalling digest 0.6.19
renv::restore()
# restore automatic snapshots
options(renv.config.auto.snapshot = auto.snapshot)
}