backport_linter: Backport linter

In jimhester/lintr: A 'Linter' for R Code

Backport linter

Description

Check for usage of unavailable functions. Not reliable for testing r-devel dependencies.

Usage

backport_linter(r_version = getRversion(), except = character())

Arguments

r_version	Minimum R version to test for compatibility. Defaults to the R version currently in use. The version can be specified as a version number, or as a version alias (such as "devel", "oldrel", "oldrel-1").
except	Character vector of functions to be excluded from linting. Use this to list explicitly defined backports, e.g. those imported from the {backports} package or manually defined in your package.

Tags

configurable, package_development, robustness

See Also

linters for a complete list of linters available in lintr.

Examples

# will produce lints
lint(
  text = "trimws(x)",
  linters = backport_linter("3.0.0")
)

lint(
  text = "str2lang(x)",
  linters = backport_linter("3.2.0")
)

lint(
  text = "deparse1(expr)",
  linters = backport_linter("3.6.0")
)

# okay
lint(
  text = "trimws(x)",
  linters = backport_linter("3.6.0")
)

lint(
  text = "str2lang(x)",
  linters = backport_linter("3.2.0", except = "str2lang")
)

# Version aliases instead of numbers can also be passed to `r_version`
lint(
  text = "deparse1(expr)",
  linters = backport_linter("release")
)

jimhester/lintr documentation built on June 14, 2025, 1:27 a.m.