devtools: check – R documentation

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check

Build and check a package, cleaning up automatically on success.

Description

check automatically builds and checks a source package, using all known best practices. check_built checks an already built package.

Usage

check(
  pkg = ".",
  document = NULL,
  build_args = NULL,
  ...,
  manual = FALSE,
  cran = TRUE,
  remote = FALSE,
  incoming = remote,
  force_suggests = FALSE,
  run_dont_test = FALSE,
  args = "--timings",
  env_vars = c(NOT_CRAN = "true"),
  quiet = FALSE,
  check_dir = tempdir(),
  cleanup = TRUE,
  vignettes = TRUE,
  error_on = c("never", "error", "warning", "note")
)

check_built(
  path = NULL,
  cran = TRUE,
  remote = FALSE,
  incoming = remote,
  force_suggests = FALSE,
  run_dont_test = FALSE,
  manual = FALSE,
  args = "--timings",
  env_vars = NULL,
  check_dir = tempdir(),
  quiet = FALSE,
  error_on = c("never", "error", "warning", "note")
)

Arguments

`pkg`	The package to use, can be a file path to the package or a package object. See `as.package()` for more information.
`document`	By default (`NULL`) will document if your installed roxygen2 version matches the version declared in the `DESCRIPTION` file. Use `TRUE` or `FALSE` to override the default.
`build_args`	Additional arguments passed to `R CMD build`
`...`	Additional arguments passed on to `pkgbuild::build()`.
`manual`	If `FALSE`, don't build and check manual (`--no-manual`).
`cran`	if `TRUE` (the default), check using the same settings as CRAN uses.
`remote`	Sets `_R_CHECK_CRAN_INCOMING_REMOTE_` env var. If `TRUE`, performs a number of CRAN incoming checks that require remote access.
`incoming`	Sets `_R_CHECK_CRAN_INCOMING_` env var. If `TRUE`, performs a number of CRAN incoming checks.
`force_suggests`	Sets `_R_CHECK_FORCE_SUGGESTS_`. If `FALSE` (the default), check will proceed even if all suggested packages aren't found.
`run_dont_test`	Sets `--run-donttest` so that tests surrounded in `\dontest{}` are also tested. When `cran = TRUE`, this only affects R 3.6 and earlier; in R 4.0.0 code in `\dontest{}` is always run as part of CRAN submission.
`args`	Character vector of arguments to pass to `R CMD check`. (Note that instead of the `--output` option you should use the `check_dir` argument, because `--output` cannot deal with spaces and other special characters on Windows.
`env_vars`	Environment variables set during `R CMD check`
`quiet`	if `TRUE` suppresses output from this function.
`check_dir`	the directory in which the package is checked compatibility. `args = "--output=/foo/bar"` can be used to change the check directory.
`cleanup`	Deprecated.
`vignettes`	If `FALSE`, do not build or check vignettes, equivalent to using `args = '--ignore-vignettes' and` build_args = '–no-build-vignettes'.
`error_on`	Whether to throw an error on `R CMD check` failures. Note that the check is always completed (unless a timeout happens), and the error is only thrown after completion. If `"never"`, then no errors are thrown. If `"error"`, then only `ERROR` failures generate errors. If `"warning"`, then `WARNING` failures generate errors as well. If `"note"`, then any check failure generated an error.
`path`	Path to built package.

Details

Passing R CMD check is essential if you want to submit your package to CRAN: you must not have any ERRORs or WARNINGs, and you want to ensure that there are as few NOTEs as possible. If you are not submitting to CRAN, at least ensure that there are no ERRORs or WARNINGs: these typically represent serious problems.

check automatically builds a package before calling check_built as this is the recommended way to check packages. Note that this process runs in an independent realisation of R, so nothing in your current workspace will affect the process.

Value

An object containing errors, warnings, and notes.

Environment variables

Devtools does its best to set up an environment that combines best practices with how check works on CRAN. This includes:

The standard environment variables set by devtools: r_env_vars(). Of particular note for package tests is the NOT_CRAN env var which lets you know that your tests are not running on CRAN, and hence can take a reasonable amount of time.
Debugging flags for the compiler, set by compiler_flags(FALSE).
If aspell is found _R_CHECK_CRAN_INCOMING_USE_ASPELL_ is set to TRUE. If no spell checker is installed, a warning is issued.)
env vars set by arguments incoming, remote and force_suggests