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Check glysmith dependencies for a blueprint

check_glysmith_deps.Rd

Checks whether the packages required by steps in a blueprint are installed. This does not install or check every package listed in Suggests; it only checks the packages declared by the steps in blueprint.

Usage

check_glysmith_deps(
  blueprint = blueprint_default(),
  action = c("ask", "error", "note")
)

Arguments

blueprint

A blueprint(). Defaults to blueprint_default().

action

Character string indicating what to do if packages are missing:

  • "ask" (default): Prompt the user to install missing packages

  • "error": Throw an error if any packages are missing

  • "note": Just print which packages are missing, don't prompt

Value

Returns TRUE invisibly if all packages are installed. If action = "ask", may return TRUE after installation or FALSE if user declines.

Examples

if (FALSE) { # \dontrun{
# Check dependencies required by the default blueprint
check_glysmith_deps()

# Check dependencies required by a custom blueprint
bp <- blueprint(
  step_ident_overview(),
  step_pca()
)
check_glysmith_deps(bp)
} # }