Add a new CRAN-like repository

Add a new repository to the list of repositories that pak uses to look for packages.

Usage

repo_add(..., .list = NULL)

repo_resolve(spec)

Arguments

...: Repository specifications, possibly named character vectors. See details below.
.list: List or character vector of repository specifications. This argument is easier to use programmatically than .... See details below.
spec: Repository specification, a possibly named character scalar.

Value

repo_resolve() returns a named character scalar, the URL of the repository.

Details

repo_add() adds new repositories. It resolves the specified repositories using repo_resolve() and then modifies the repos global option.

repo_add() only has an effect in the current R session. If you want to keep your configuration between R sessions, then set the repos option to the desired value in your user or project .Rprofile file.

Repository specifications

The format of a repository specification is a named or unnamed character scalar. If the name is missing, pak adds a name automatically. The repository named CRAN is the main CRAN repository, but otherwise names are informational.

Currently supported repository specifications:

URL pointing to the root of the CRAN-like repository. Example:
```
https://cloud.r-project.org
```
PPM@latest, PPM (Posit Package Manager, formerly RStudio Package Manager), the latest snapshot.
PPM@<date>, PPM (Posit Package Manager, formerly RStudio Package Manager) snapshot, at the specified date.
PPM@<package>-<version> PPM snapshot, for the day after the release of <version> of <package>.
PPM@R-<version> PPM snapshot, for the day after R <version> was released.

Still works for dates starting from 2017-10-10, but now deprecated, because MRAN is discontinued:

MRAN@<date>, MRAN (Microsoft R Application Network) snapshot, at the specified date.
MRAN@<package>-<version> MRAN snapshot, for the day after the release of <version> of <package>.
MRAN@R-<version> MRAN snapshot, for the day after R <version> was released.

Notes:

See more about PPM at https://packagemanager.posit.co/client/#/.
The RSPM@ prefix is still supported and treated the same way as PPM@.
The MRAN service is now retired, see https://techcommunity.microsoft.com/blog/azuresqlblog/microsoft-r-application-network-retirement/3707161 for details.
MRAN@... repository specifications now resolve to PPM, but note that PPM snapshots are only available from 2017-10-10. See more about this at https://posit.co/blog/migrating-from-mran-to-posit-package-manager/.
All dates (or times) can be specified in the ISO 8601 format.
If PPM does not have a snapshot available for a date, the next available date is used.
Dates that are before the first, or after the last PPM snapshot will trigger an error.
Unknown R or package versions will trigger an error.

Examples

repo_add(PPMdplyr100 = "PPM@dplyr-1.0.0")
repo_get()

#> # A data frame: 7 × 5
#>   name          url                         type  r_version bioc_version
#> * <chr>         <chr>                       <chr> <chr>     <chr>
#> 1 CRAN          https://cloud.r-project.org cran  *         NA
#> 2 PPMdplyr100   https://packagemanager.pos… cran… *         NA
#> 3 BioCsoft      https://bioconductor.org/p… bioc  4.3.1     3.17
#> 4 BioCann       https://bioconductor.org/p… bioc  4.3.1     3.17
#> 5 BioCexp       https://bioconductor.org/p… bioc  4.3.1     3.17
#> 6 BioCworkflows https://bioconductor.org/p… bioc  4.3.1     3.17
#> 7 BioCbooks     https://bioconductor.org/p… bioc  4.3.1     3.17

repo_resolve("PPM@2020-01-21")

#>                                       CRAN
#> "https://packagemanager.posit.co/cran/245"

repo_resolve("PPM@dplyr-1.0.0")

#>                                       CRAN
#> "https://packagemanager.posit.co/cran/289"

repo_resolve("PPM@R-4.0.0")

#>                                       CRAN
#> "https://packagemanager.posit.co/cran/276"