Skills

R Lifecycle

Guidance for managing R package lifecycle according to tidyverse principles using the...

Install

npx skills add posit-dev/skills --skill r-lifecycle -g -a claude-code -y
Repository
posit-dev/skills551
Category
DevOps
Updated
7d ago
License
MIT
Context cost
Lightabout 1,344 tokens
Runs scripts
No, instructions only

What it does

Guidance for managing R package lifecycle according to tidyverse principles using the lifecycle package. Use when: (1) Setting up lifecycle infrastructure in a package, (2) Deprecating functions or arguments, (3) Renaming functions or arguments, (4) Superseding functions, (5) Marking functions as experimental, (6) Understanding lifecycle stages (stable, experimental, deprecated, superseded), or (7) Writing deprecation helpers for complex scenarios.

R Package Lifecycle Management

Manage function and argument lifecycle using tidyverse conventions and the lifecycle package.

Setup

Check if lifecycle is configured by looking for lifecycle-*.svg files in man/figures/.

If not configured, run:

usethis::use_lifecycle()

This:

  • Adds lifecycle to Imports in DESCRIPTION
  • Adds @importFrom lifecycle deprecated to the package documentation file
  • Copies badge SVGs to man/figures/

Lifecycle Badges

Insert badges in roxygen2 documentation:

#' @description
#' `r lifecycle::badge("experimental")`
#' `r lifecycle::badge("deprecated")`
#' `r lifecycle::badge("superseded")`

For arguments:

#' @param old_arg `r lifecycle::badge("deprecated")` Use `new_arg` instead.

Only badge functions/arguments whose stage differs from the package's overall stage.

Deprecating a Function

  1. Add badge and explanation to @description:
#' Do something
#'
#' @description
#' `r lifecycle::badge("deprecated")`
#'
#' `old_fun()` was deprecated in mypkg 1.0.0. Use [new_fun()] instead.
#' @keywords internal
  1. Add deprecate_warn() as first line of function body:
old_fun <- function(x) {

lifecycle::deprecate_warn("1.0.0", "old_fun()", "new_fun()")
new_fun(x)
}
  1. Show migration in examples:
#' @examples
#' old_fun(x)
#' # ->
#' new_fun(x)

Deprecation Functions

FunctionWhen to Use
deprecate_soft()First stage; warns only direct users and during tests
deprecate_warn()Standard deprecation; warns once per 8 hours
deprecate_stop()Final stage before removal; errors with helpful message

Deprecation workflow for major releases:

Read the whole SKILL.md on GitHub

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