Determine if one or more targets are "current" or not. A target is current if (1) it exists, (2) its immediate dependencies are unchanged since it was last built and (3) its code is unchanged since it was last built.
is_current(target_names, check = NULL, verbose = FALSE,
allow_missing_packages = FALSE, remake_file = "remake.yml")Names of one or more targets to check
What to check. By default (check=NULL) this
will check both code and dependencies unless overridden in the
makerfile. Other valid options are "exists" (current if
the target exists), "depends" (current if exists and
dependencies unchanged), "code" (current if exists and code
unchanged) or "all" (current if exists and both
dependencies and code unchanged).
Be verbose when loading remake file? Default is
FALSE.
Allow missing packages when loading remake file?
Name of the remakefile (by default
remake.yml).
A logical vector the same length as target_names.
Note that this function does not check all the way down the dependency tree; so if A depends on B and B depends on C, A may be current with respect to B but B may be out of date with respect to C. Therefore running make()] would trigger building B, which may imply rebuilding A.