box library trailing commas linter — box_trailing_commas

Checks that all box:use imports have a trailing comma. This applies to package or module imports between ( and ), and, optionally, function imports between [ and ]. Take note that lintr::commas_linter() may come into play. See the Explanation: Rhino style guide to learn about the details.

Usage

box_trailing_commas_linter(check_functions = FALSE)

Arguments

check_functions: Boolean flag to include function imports between [ and ]. Defaults to FALSE.

Value

A custom linter function for use with r-lib/lintr

Examples

# will produce lints
lintr::lint(
  text = "box::use(base, rlang)",
  linters = box_trailing_commas_linter()
)
#> ::warning file=<text>,line=1,col=21::file=<text>,line=1,col=21,[box_trailing_commas_linter] Always have a trailing comma at the end of imports, before a `)`.

lintr::lint(
  text = "box::use(
   dplyr[select, mutate]
  )",
  linters = box_trailing_commas_linter()
)
#> ::warning file=<text>,line=3,col=3::file=<text>,line=3,col=3,[box_trailing_commas_linter] Always have a trailing comma at the end of imports, before a `)`.

# okay
lintr::lint(
  text = "box::use(base, rlang, )",
  linters = box_trailing_commas_linter()
)

lintr::lint(
  text = "box::use(
    dplyr[select, mutate],
  )",
  linters = box_trailing_commas_linter()
)