The lock file can be used later, possibly in a new R session, to carry
out the installation of the dependencies, with
lockfile_create( pkg = "deps::.", lockfile = "pkg.lock", lib = NULL, upgrade = FALSE, dependencies = NA )
Package names or remote package specifications to install. See pak package sources for details.
Path to the lock file.
Package library to install the packages to. Note that all dependent packages will the be installed here, even if they are already installed in another library.
FALSE, the default, does the minimum amount of work
to give you the latest version of
pkg. It will only upgrade packages if
pkg or one of its explicitly requires a higher version than what you
upgrade = TRUE, will do ensure that you have the latest version of
pkg and all its dependencies.
Dependency types. See
pkgdepends::as_pkg_dependencies() for possible values. Note that
changing this argument from the default might result an installation
failure, e.g. if you set it to
FALSE, packages might not build if
their dependencies are not already installed.
Note, since the URLs of CRAN and most CRAN-like repositories change over time, in practice you cannot use the lock file much later. For example, binary packages of older package version might be deleted from the repository, breaking the URLs in the lock file.
Currently the intended use case of lock files in on CI systems, to facilitate caching. The (hash of the) lock file provides a good key for caching systems.
Other lock files: