lockfile-metadata {packrat} | R Documentation |
Get / Set packrat lockfile metadata
Description
Get and set metadata in the current packrat-managed project lockfile packrat.lock
Usage
set_lockfile_metadata(repos = NULL, r_version = NULL, project = NULL)
get_lockfile_metadata(metadata = NULL, simplify = TRUE, project = NULL)
Arguments
repos |
A named character vector of the form |
r_version |
A length-one character vector with suitable numeric version
string. See |
project |
The project directory. When in packrat mode, defaults to the current project; otherwise, defaults to the current working directory. |
metadata |
The lockfile field name(s) to draw from. |
simplify |
Boolean; if |
Details
Project's packrat.lock
contains some metadata before packages
dependencies informations. The project's lockfile is created and updated
programmatically by snapshot
. However it could be necessary sometimes to
modify manually some of those values. For example, it could be useful to set another repository
CRAN url when deploying to a offline environnement.
available metadata
-
r_version
: R version the project depends on -
repos
: Name of repos and their url recorded packages can be retrieve from. Only url is recommended to change if need. Name of repos is used in package records and must be identical
Examples
## Not run:
# changes repos url
repos <- old_repos <- get_lockfile_metadata("repos")
repos
repos["CRAN"] <- "https://cran.r-project.org/"
set_lockfile_metadata(repos = repos)
get_lockfile_metadata("repos")
# setting back old state
# set_lockfile_metadata(repos = old_repos)
# changes R version
rver <- old_rver <- get_lockfile_metadata("r_version")
rver
rver <- "3.4.1"
set_lockfile_metadata(r_version = rver)
get_lockfile_metadata("r_version")
# Setting back old state
# set_lockfile_metadata(r_version = old_rver)
## End(Not run)