packrat (version 0.4.8-1)

packrat-options: Get/set packrat project options

Description

Get and set options for the current packrat-managed project.

Usage

get_opts(options = NULL, simplify = TRUE, project = NULL)
set_opts(..., project = NULL, persist = TRUE)
opts

Arguments

options

A character vector of valid option names.

simplify

Boolean; unlist the returned options? Useful for when retrieving a single option.

project

The project directory. When in packrat mode, defaults to the current project; otherwise, defaults to the current working directory.

...

Entries of the form key = value, used for setting packrat project options.

persist

Boolean; persist these options for future sessions?

Valid Options

• auto.snapshot: Perform automatic, asynchronous snapshots when running interactively? (logical; defaults to TRUE)
• use.cache: Install packages into a global cache, which is then shared across projects? The directory to use is read through Sys.getenv("R_PACKRAT_CACHE_DIR"). Not yet implemented for Windows. (logical; defaults to FALSE)
• print.banner.on.startup: Print the banner on startup? Can be one of TRUE (always print), FALSE (never print), and 'auto' (do the right thing) (defaults to "auto")
• vcs.ignore.lib: Add the packrat private library to your version control system ignore? (logical; defaults to TRUE)
• vcs.ignore.src: Add the packrat private sources to your version control system ignore? (logical; defaults to FALSE)
• external.packages: Packages which should be loaded from the user library. This can be useful for very large packages which you don't want duplicated across multiple projects, e.g. BioConductor annotation packages, or for package development scenarios wherein you want to use e.g. devtools and roxygen2 for package development, but do not want your package to depend on these packages. (character; defaults to Sys.getenv("R_PACKRAT_EXTERNAL_PACKAGES"))
• local.repos: Ad-hoc local 'repositories'; i.e., directories containing package sources within sub-directories. (character; empty by default)
• load.external.packages.on.startup: Load any packages specified within external.packages on startup? (logical; defaults to TRUE)
• ignored.packages: Prevent packrat from tracking certain packages. Dependencies of these packages will also not be tracked (unless these packages are encountered as dependencies in a separate context from the ignored package). (character; empty by default)
• quiet.package.installation: Emit output during package installation? (logical; defaults to TRUE)
• snapshot.recommended.packages: Should 'recommended' packages discovered in the system library be snapshotted? See the Priority field of available.packages() for more information -- 'recommended' packages are those normally bundled with CRAN releases of R on OS X and Windows, but new releases are also available on the CRAN server. (logical; defaults to FALSE)
• snapshot.fields: What fields of a package's DESCRIPTION file should be used when discovering dependencies? (character, defaults to c("Imports", "Depends", "LinkingTo"))

Examples

## Not run: 
# ## use 'devtools' and 'knitr' from the user library
# packrat::set_opts(external.packages = c("devtools", "knitr"))
# 
# ## set local repository
# packrat::set_opts(local.repos = c("~/projects/R"))
# 
# ## get the set of 'external packages'
# packrat::opts$external.packages()
# 
# ## set the external packages
# packrat::opts$external.packages(c("devtools", "knitr"))
# ## End(Not run)