Step: Run arbitrary R code

Captures the expression and executes it when running the step. An optional preparatory expression can be provided that is executed during preparation. If the top-level expression is a qualified function call (of the format package::fun()), the package is installed during preparation.

Usage

step_run_code(call = NULL, prepare_call = NULL)

Arguments

call

[call]
An arbitrary R expression executed during the stage to which this step is added. The default is useful if you only pass prepare_call.

prepare_call

[call]
An optional arbitrary R expression executed during preparation.

See also

Other steps: step_add_to_drat(), step_add_to_known_hosts(), step_build_pkgdown(), step_do_push_deploy(), step_hello_world(), step_install_pkg, step_install_ssh_keys(), step_push_deploy(), step_session_info(), step_setup_push_deploy(), step_setup_ssh(), step_test_ssh(), step_write_text_file()

Examples

dsl_init()
#> ✔ Creating a clean tic stage configuration
#> ℹ See `?tic::dsl_get` for details

get_stage("install") %>%
  add_step(step_run_code(update.packages(ask = FALSE)))
#> Superclass TicStep has cloneable=FALSE, but subclass RunCode has cloneable=TRUE. A subclass cannot be cloneable when its superclass is not cloneable, so cloning will be disabled for RunCode.

# Will install covr from CRAN during preparation:
get_stage("after_success") %>%
  add_code_step(covr::codecov())
#> Superclass TicStep has cloneable=FALSE, but subclass RunCode has cloneable=TRUE. A subclass cannot be cloneable when its superclass is not cloneable, so cloning will be disabled for RunCode.

dsl_get()
#> ── tic configuration summary ───────────────────────────────────────────────────
#> ── Stage: install ──────────────────────────────────────────────────────────────
#> ▶ step_run_code(update.packages(ask=FALSE))
#> ── Stage: after_success ────────────────────────────────────────────────────────
#> ▶ step_run_code(covr::codecov())