packageStatus {utils} | R Documentation

## Package Management Tools

### Description

Summarize information about installed packages and packages available at various repositories, and automatically upgrade outdated packages.

### Usage

    packageStatus(lib.loc = NULL, repositories = NULL, method,
                  type = getOption("pkgType"))

    ## S3 method for class 'packageStatus'
    summary(object, ...)

    ## S3 method for class 'packageStatus'
    update(object, lib.loc = levels(object$inst$LibPath),
           repositories = levels(object$avail$Repository), ...)

    ## S3 method for class 'packageStatus'
    upgrade(object, ask = TRUE, ...)

### Arguments

`lib.loc` | a character vector describing the location of R library trees to search through, or `NULL`. The default value of `NULL` corresponds to all libraries currently known.
`repositories` | a character vector of URLs describing the location of R package repositories on the Internet or on the local machine.
`method` | Download method, see `download.file`.
`type` | type of package distribution: see `install.packages`.
`object` | an object of class `"packageStatus"` as returned by `packageStatus`.
`ask` | if `TRUE`, the user is prompted which packages should be upgraded and which not.
`...` | currently not used.

### Details

The URLs in `repositories` should be full paths to the appropriate contrib sections of the repositories. The default is `contrib.url(getOption("repos"))`.

There are `print` and `summary` methods for the `"packageStatus"` objects: the `print` method gives a brief tabular summary and the `summary` method prints the results.

The `update` method updates the `"packageStatus"` object. The `upgrade` method is similar to `update.packages`: it offers to install the current versions of those packages which are not currently up-to-date.

### Value

An object of class `"packageStatus"`. This is a list with two components

`inst` | a data frame with columns as the matrix returned by `installed.packages` plus `"Status"`, a factor with levels `c("ok", "upgrade", "unavailable")`. Only the newest version of each package is reported, in the first repository in which it appears.
`avail` | a data frame with columns as the matrix returned by `available.packages` plus `"Status"`, a factor with levels `c("installed", "not installed")`.

For the `summary` method the result is also of class `"summary.packageStatus"` with additional components

`Libs` | a list with one element for each library
`Repos` | a list with one element for each repository

with the elements being lists of character vectors of package name for each status.

### See Also

`installed.packages`, `available.packages`

### Examples

    ## Not run:
    x <- packageStatus()
    print(x)
    summary(x)
    upgrade(x)
    x <- update(x)
    print(x)

    ## End(Not run)

[Package utils version 3.3.2 Index]