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## covr: skip=all
.onLoad <- function(libname, pkgname) {
debug <- isTRUE(as.logical(Sys.getenv("R_FUTURE_DEBUG", FALSE)))
if (debug) options(future.debug = TRUE)
debug <- getOption("future.debug", debug)
## Automatically play nice when 'R CMD check' runs?
if (isTRUE(as.logical(Sys.getenv("R_FUTURE_R_CMD_CHECK_NICE", TRUE))) && inRCmdCheck()) {
if (debug) mdebug("Detected 'R CMD check':\n - adjusting defaults to be a good citizen")
## To be nicer to test environments (e.g. CRAN, Travis CI and AppVeyor CI),
## timeout much earlier than the default 30 days. This will also give a more
## informative error message produced by R itself, rather than whatever the
## test environment produces.
## NOTE: By using environment variables, instead of R options, we can make
## sure these settings are also passed down to child processes, including
## nested ones.
Sys.setenv(R_FUTURE_MAKENODEPSOCK_CONNECTTIMEOUT = 2 * 60)
Sys.setenv(R_FUTURE_MAKENODEPSOCK_TIMEOUT = 2 * 60)
Sys.setenv(R_FUTURE_WAIT_INTERVAL = 0.01) ## 0.01s (instead of default 0.2s)
## Collect more session details from workers to helps troubleshooting on
## remote servers, e.g. CRAN servers
Sys.setenv(R_FUTURE_MAKENODEPSOCK_SESSIONINFO_PKGS = TRUE)
## Automatically kill stray cluster workers, if possible
Sys.getenv("R_FUTURE_MAKENODEPSOCK_AUTOKILL", TRUE)
## Label cluster workers, if possible
Sys.setenv(R_FUTURE_MAKENODEPSOCK_RSCRIPT_LABEL = TRUE)
}
if (debug) {
envs <- Sys.getenv()
envs <- envs[grep("R_FUTURE_", names(envs), fixed = TRUE)]
envs <- sprintf("- %s=%s", names(envs), sQuote(envs))
mdebug(paste(c("Future-specific environment variables:", envs), collapse = "\n"))
}
## Does multiprocess resolve to multisession? If so, then
## plan(multiprocess) should initiate the workers.
if (is.na(attr(multiprocess, "init", exact = TRUE))) {
attr(multiprocess, "init") <<- !supportsMulticore()
}
## Initiate the R session UUID, which will also set/update
## .GlobalEnv$.Random.seed.
session_uuid(attributes = FALSE)
## Unless already set, set option 'future.availableCores.fallback'
## according to environment variable 'R_FUTURE_AVAILABLECORES_FALLBACK'.
ncores <- getOption("future.availableCores.fallback")
if (is.null(ncores)) {
ncores <- trim(Sys.getenv("R_FUTURE_AVAILABLECORES_FALLBACK"))
if (nzchar(ncores)) {
if (debug) mdebug("R_FUTURE_AVAILABLECORES_FALLBACK=%s", sQuote(ncores))
if (is.element(ncores, c("NA_integer_", "NA"))) {
ncores <- NA_integer_
} else {
ncores <- as.integer(ncores)
}
if (debug) mdebug(" => options(future.availableCores.fallback = %d)", ncores)
options(future.availableCores.fallback = ncores)
}
ncores <- getOption("future.availableCores.fallback")
}
if (!is.null(ncores)) {
if (debug) mdebug("Option 'future.availableCores.fallback = %d", ncores)
}
## Unless already set, set option 'future.availableCores.system'
## according to environment variable 'R_FUTURE_AVAILABLECORES_SYSTEM'.
ncores <- getOption("future.availableCores.system")
if (is.null(ncores)) {
ncores <- trim(Sys.getenv("R_FUTURE_AVAILABLECORES_SYSTEM"))
if (nzchar(ncores)) {
if (debug) mdebug("R_FUTURE_AVAILABLECORES_SYSTEM=%s", sQuote(ncores))
if (is.element(ncores, c("NA_integer_", "NA"))) {
ncores <- NA_integer_
} else {
ncores <- as.integer(ncores)
}
if (debug) mdebug(" => options(future.availableCores.system = %d)", ncores)
options(future.availableCores.system = ncores)
}
ncores <- getOption("future.availableCores.system")
}
if (!is.null(ncores)) {
if (debug) mdebug("Option 'future.availableCores.system = %d", ncores)
}
## Unless already set, set option 'future.plan' according to
## system environment variable 'R_FUTURE_PLAN'.
strategy <- getOption("future.plan")
if (is.null(strategy)) {
strategy <- trim(Sys.getenv("R_FUTURE_PLAN"))
if (nzchar(strategy)) {
if (debug) {
mdebug("R_FUTURE_PLAN=%s", sQuote(strategy))
mdebug(" => options(future.plan = '%s')", strategy)
}
options(future.plan = strategy)
}
strategy <- getOption("future.plan")
}
if (!is.null(strategy)) {
if (debug) {
if (is.character(strategy)) {
mdebug("Option 'future.plan' = %s", sQuote(strategy))
} else {
mdebug("Option 'future.plan' of type %s", sQuote(mode(strategy)))
}
}
}
args <- parseCmdArgs()
p <- args$p
if (!is.null(p)) {
if (debug) mdebug("R command-line argument: -p %s", p)
## Apply
options(mc.cores = p)
## options(Ncpus = p) ## FIXME: Does it make sense? /HB 2016-04-02
## Set 'future.plan' option?
if (!is.null(strategy)) {
if (debug) mdebug(" => 'future.plan' already set.")
} else if (p == 1L) {
if (debug) mdebug(" => options(future.plan = sequential)")
options(future.plan = sequential)
} else {
if (debug) mdebug(" => options(future.plan = tweak(multiprocess, workers = %s))", p)
options(future.plan = tweak(multiprocess, workers = p))
}
}
## Create UUID for this process
id <- session_uuid()
if (debug) {
mdebug("R process uuid: %s", id)
mdebug("Setting plan('default')")
}
## NOTE: Don't initiate during startup - it might hang / give an error
plan("default", .init = FALSE)
} ## .onLoad()
## covr: skip=all
#' @importFrom utils file_test
.onAttach <- function(libname, pkgname) {
## Load .future.R script?
loadDotFuture <- getOption("future.startup.loadScript", TRUE)
if (isTRUE(loadDotFuture)) {
debug <- getOption("future.debug", FALSE)
pathnames <- c(".future.R", "~/.future.R")
pathnames <- pathnames[file_test("-f", pathnames)]
if (length(pathnames) == 0) {
if (debug) mdebug("Future startup scripts identified: <none>")
return()
}
pathname <- pathnames[1]
if (debug) {
mdebug("Future startup scripts identified: %s", paste(sQuote(pathnames), collapse = ", "))
mdebug("Future startup script to load: %s", sQuote(pathname))
}
tryCatch({
source(pathname, chdir = FALSE, echo = FALSE, local = FALSE)
}, error = function(ex) {
msg <- sprintf("Failed to source %s file while attaching the future package. Will ignore this error, but please investigate. The error message was: %s", sQuote(pathname), sQuote(ex$message))
if (debug) mdebug(msg)
warning(msg)
})
}
} ## .onAttach()
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