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Check a package installation status or minimum required version

Source: R/assert_package.R
assert_package.Rd

The function .assert_package() checks whether a package is installed and returns an error or FALSE if not available. If a package search is provided, the function will check whether a minimum version of a package is required. The function .get_package_dependencies() returns a tibble with all dependencies of a specific package. Finally, .get_min_version_required() will return, if any, the minimum version of pkg required by pkg_search, NULL if no minimum version required.

Usage

.assert_package(pkg, fn = NULL, pkg_search = "broom.helpers", boolean = FALSE)

.get_package_dependencies(pkg_search = "broom.helpers")

.get_all_packages_dependencies(
  pkg_search = NULL,
  remove_duplicates = FALSE,
  lib.loc = NULL
)

.get_min_version_required(pkg, pkg_search = "broom.helpers")

Arguments

pkg

(string)
Name of the required package.

fn

(string)
Name of the calling function from the user perspective. Used to write informative error messages.

(string)
Name of the package the function will search for a minimum required version from.

boolean

(logical)
Whether to return a TRUE/FALSE, rather than error when package/package version not available. Default is FALSE, which will return an error if pkg is not installed.

remove_duplicates

(logical)
If several versions of a package are installed, should only the first one be returned?

lib.loc

(string)
Location of R library trees to search through, see utils::installed.packages().

Value

logical or error for .assert_package(), NULL or character with the minimum version required for .get_min_version_required(), a tibble for .get_package_dependencies().

Details

get_all_packages_dependencies() could be used to get the list of dependencies of all installed packages.

Examples

if (FALSE) { # interactive()
.assert_package("broom", boolean = TRUE)
.get_package_dependencies()
.get_min_version_required("brms")
}