CRAN | R Documentation |
This function allows package developers to run tests
themselves that should not run on CRAN or with
"R CMD check --as-cran"
because of compute
time constraints with CRAN
tests.
CRAN(CRAN_pattern, n_R_CHECK4CRAN)
CRAN_pattern |
a regular expressions to apply to the names of
|
n_R_CHECK4CRAN |
Assume this is |
The "Writing R Extensions" manual says that
"R CMD check"
can be customized
"by setting environment variables
_R_CHECK_*_:
, as described in" the
Tools section of the "R Internals" manual.
'R CMD check'
was tested with
R 3.0.1 under Fedora 18 Linux and with
Rtools 3.0
from April 16, 2013 under
Windows 7. With the '--as-cran'
option, 7 matches were found; without it,
only 3 were found. These numbers were
unaffected by the presence or absence of the
'–timings' parameter. On this basis, the
default value of n_R_CHECK4CRAN
was
set at 5.
1. x. <- Sys.getenv()
2. Fix CRAN_pattern
and
n_R_CHECK4CRAN
if missing.
3. Let i
be the indices of
x.
whose names match all the patterns
in the vector x.
4. Assume this is CRAN
if
length(i) >= n_R_CHECK4CRAN
.
a logical scalar with attributes
'Sys.getenv'
containing the
results of Sys.getenv()
and
'matches' containing i
per step
3 above.
Spencer Graves (copied from the
fda
package)
Sys.getenv
skip_on_cran
, which uses
["the NOT_CRAN env var set by devtools and friends"](https://testthat.r-lib.org/reference/skip.html). This
CRAN
function does NOT require a user to
set any environment variable.
cran <- CRAN()
str(cran)
gete <- attr(cran, 'Sys.getenv')
(ngete <- names(gete))
iget <- grep('^_', names(gete))
gete[iget]
#\dontrun is sometimes run on CRAN. See
#https://github.com/ThinkR-open/prepare-for-cran
#accessed 2021-06-14
if (interactive()) {
if(CRAN()){
stop('CRAN')
} else {
stop('NOT CRAN')
}
}
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