Nothing
handle_triggers <- function(target, meta, config) {
class(target) <- handle_triggers_class(target, config)
handle_triggers_impl(target, meta, config)
}
handle_triggers_class <- function(target, config) {
if (is_subtarget(target, config)) {
return("subtarget")
}
if (is_registered_dynamic(target, config)) {
return("dynamic_registered")
}
if (is_dynamic(target, config)) {
return("dynamic_unregistered")
}
"static"
}
handle_triggers_impl <- function(target, meta, config) {
UseMethod("handle_triggers_impl")
}
#' @export
handle_triggers_impl.subtarget <- function(target, meta, config) { # nolint
FALSE
}
#' @export
handle_triggers_impl.dynamic_registered <- function(target, meta, config) { # nolint
FALSE
}
#' @export
handle_triggers_impl.dynamic_unregistered <- function(target, meta, config) { # nolint
target <- unclass(target)
static_ok <- !any_static_triggers(target, meta, config) ||
recover_target(target, meta, config)
dynamic_ok <- !check_trigger_dynamic(target, meta, config)
register_subtargets(target, static_ok, dynamic_ok, config)
TRUE
}
#' @export
handle_triggers_impl.static <- function(target, meta, config) { # nolint
target <- unclass(target)
any_triggers <- any_static_triggers(target, meta, config) ||
any_subtargetlike_triggers(target, meta, config)
!any_triggers || recover_target(target, meta, config)
}
recover_target <- function(target, meta, config) {
if (!config$settings$recover) {
return(FALSE)
}
key <- recovery_key_impl(target = target, meta = meta, config = config)
if (!config$cache$exists(key, namespace = "recover")) {
return(FALSE)
}
meta_hash <- config$cache$get_hash(
key,
namespace = "recover"
)
recovery_meta <- config$cache$driver$get_object(meta_hash)
value_hash <- recovery_meta$hash
exists_data <- config$cache$exists_object(meta_hash) &&
config$cache$exists_object(value_hash)
if (!exists_data) {
return(FALSE) # nocov # Should not happen, just to be safe...
}
meta_old <- drake_meta_old(target, config)
on.exit(config$meta_old[[target]] <- meta_old)
config$meta_old[[target]] <- recovery_meta
meta <- subsume_old_meta(target, meta, config)
if (any_subtargetlike_triggers(target, meta, config)) {
return(FALSE)
}
if (!is_dynamic(target, config)) {
config$logger$target(target, "recover")
}
config$logger$disk(
"recovered target originally stored on",
recovery_meta$date,
target = target
)
config$cache$driver$set_hash(
key = target,
namespace = "meta",
hash = meta_hash
)
config$cache$driver$set_hash(
key = target,
namespace = config$cache$default_namespace,
hash = value_hash
)
set_progress(
target = target,
value = "done",
config = config
)
TRUE
}
recover_subtarget <- function(subtarget, parent, config) {
meta <- drake_meta_(subtarget, config)
class(subtarget) <- "subtarget"
recover_target(subtarget, meta, config)
}
recovery_key <- function(target, meta, config) {
if (is_subtarget(target, config)) {
class(target) <- "subtarget"
}
recovery_key_impl(target, meta, config)
}
recovery_key_impl <- function(target, meta, config) {
UseMethod("recovery_key_impl")
}
#' @export
recovery_key_impl.subtarget <- function(target, meta, config) {
parent <- subtarget_parent(target, config)
parent_meta <- drake_meta_(parent, config)
parent_key <- recovery_key(parent, parent_meta, config)
x <- c(unclass(target), parent_key)
x <- paste(x, collapse = "|")
config$cache$digest(x, serialize = FALSE)
}
#' @export
recovery_key_impl.default <- function(target, meta, config, ...) {
change_hash <- ifelse(
is.null(meta$trigger$value),
NA_character_,
config$cache$digest(meta$trigger$value)
)
x <- c(
meta$command,
meta$dependency_hash,
meta$input_file_hash,
meta$output_file_hash,
meta$trigger$mode,
meta$format,
as.character(meta$seed),
safe_deparse(meta$trigger$condition, backtick = TRUE),
change_hash
)
x <- paste(x, collapse = "|")
config$cache$digest(x, serialize = FALSE)
}
any_static_triggers <- function(target, meta, config) {
if (check_triggers_stage1(target, meta, config)) {
return(TRUE)
}
condition <- check_trigger_condition(target, meta, config)
if (is_final_trigger(condition)) {
return(condition)
}
if (condition) {
return(TRUE)
}
if (check_triggers_stage2(target, meta, config)) {
return(TRUE)
}
FALSE
}
any_subtargetlike_triggers <- function(target, meta, config) {
if (check_trigger_format_file(target, meta, config)) {
return(TRUE)
}
FALSE
}
any_subtarget_triggers <- function(target, subtargets, config) {
any(check_subtarget_triggers(target, subtargets, config))
}
check_triggers_stage1 <- function(target, meta, config) {
if (check_trigger_imported(target, meta, config)) {
return(TRUE)
}
if (check_trigger_missing(target, meta, config)) {
return(TRUE)
}
FALSE
}
check_triggers_stage2 <- function(target, meta, config) {
if (check_trigger_command(target, meta, config)) {
return(TRUE)
}
if (check_trigger_depend(target, meta, config)) {
return(TRUE)
}
if (check_trigger_file(target, meta, config)) {
return(TRUE)
}
if (check_trigger_seed(target, meta, config)) {
return(TRUE)
}
if (check_trigger_format(target, meta, config)) {
return(TRUE)
}
if (check_trigger_change(target, meta, config)) {
return(TRUE)
}
FALSE
}
check_trigger_imported <- function(target, meta, config) {
if (meta$imported) {
return(TRUE)
}
FALSE
}
check_trigger_missing <- function(target, meta, config) {
if (meta$missing) {
config$logger$disk("trigger missing", target = target)
return(TRUE)
}
FALSE
}
check_trigger_condition <- function(target, meta, config) {
condition <- trigger_condition(target = target, meta = meta, config = config)
stopifnot(is.logical(condition))
if (condition) {
config$logger$disk("trigger condition", target = target)
}
return(condition)
}
check_trigger_command <- function(target, meta, config) {
if (identical(meta$trigger$command, TRUE)) {
if (trigger_command(target, meta, config)) {
config$logger$disk("trigger command", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_depend <- function(target, meta, config) {
if (identical(meta$trigger$depend, TRUE)) {
if (trigger_depend(target, meta, config)) {
config$logger$disk("trigger depend", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_file <- function(target, meta, config) {
if (identical(meta$trigger$file, TRUE)) {
if (trigger_file(target, meta, config)) {
config$logger$disk("trigger file", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_seed <- function(target, meta, config) {
if (identical(meta$trigger$seed, TRUE)) {
if (trigger_seed(target, meta, config)) {
config$logger$disk("trigger seed", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_change <- function(target, meta, config) {
if (!is.null(meta$trigger$change)) {
if (trigger_change(target = target, meta = meta, config = config)) {
config$logger$disk("trigger change", target = target)
return(TRUE)
}
}
config$logger$disk("skip", target = target)
FALSE
}
check_trigger_format <- function(target, meta, config) {
if (identical(meta$trigger$format, TRUE)) {
if (trigger_format(target, meta, config)) {
config$logger$disk("trigger format", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_dynamic <- function(target, meta, config) {
if (identical(meta$trigger$depend, TRUE)) {
if (trigger_dynamic(target, meta, config)) {
config$logger$disk("trigger depend (dynamic)", target = target)
return(TRUE)
}
}
FALSE
}
check_trigger_format_file <- function(target, meta, config) {
if (identical(meta$trigger$file, TRUE) && meta$format == "file") {
if (trigger_format_file(target, meta, config)) {
config$logger$disk("trigger file (format file)", target = target)
return(TRUE)
}
}
FALSE
}
check_subtarget_triggers <- function(target, subtargets, config) {
out <- target_missing(subtargets, config)
spec <- config$spec[[target]]
format <- spec$format %||NA% "none"
if (identical(spec$trigger$file, TRUE) && format == "file" && !all(out)) {
i <- !out
out[i] <- out[i] | check_trigger_subtarget_format_file(
subtargets[i],
target,
config
)
}
out[is.na(out)] <- TRUE
if (any(out)) {
config$logger$disk("trigger subtarget (special)", target = target)
}
out
}
check_trigger_subtarget_format_file <- function( # nolint
subtargets,
parent,
config
) {
ht_set(config$ht_is_subtarget, subtargets)
out <- lightly_parallelize(
X = subtargets,
FUN = check_trigger_subtarget_format_file_impl,
jobs = config$settings$jobs_preprocess,
parent = parent,
config = config
)
unlist(out)
}
check_trigger_subtarget_format_file_impl <- function( # nolint
subtarget,
parent,
config
) {
meta <- drake_meta_(subtarget, config)
trigger_format_file(subtarget, meta, config)
}
trigger_command <- function(target, meta, config) {
if (is.null(meta$command)) {
return(FALSE)
}
meta_old <- drake_meta_old(target, config)
command <- meta_elt(field = "command", meta = meta_old)
!identical(command, meta$command)
}
trigger_depend <- function(target, meta, config) {
if (is.null(meta$dependency_hash)) {
return(FALSE)
}
meta_old <- drake_meta_old(target, config)
dependency_hash <- meta_elt(field = "dependency_hash", meta = meta_old)
!identical(dependency_hash, meta$dependency_hash)
}
trigger_file <- function(target, meta, config) {
if (!length(target) || !length(config) || !length(meta)) {
return(FALSE)
}
if (trigger_file_missing(target, meta, config)) {
return(TRUE)
}
if (trigger_file_hash(target, meta, config)) {
return(TRUE)
}
FALSE
}
trigger_file_missing <- function(target, meta, config) {
file_out <- config$spec[[target]]$deps_build$file_out
for (file in file_out) {
if (!file.exists(config$cache$decode_path(file))) {
return(TRUE)
}
}
FALSE
}
trigger_file_hash <- function(target, meta, config) {
for (hash_name in c("input_file_hash", "output_file_hash")) {
meta_old <- drake_meta_old(target, config)
old_file_hash <- meta_elt(field = hash_name, meta = meta_old)
if (!identical(old_file_hash, meta[[hash_name]])) {
return(TRUE)
}
}
FALSE
}
trigger_seed <- function(target, meta, config) {
meta_old <- drake_meta_old(target, config)
seed <- meta_elt(field = "seed", meta = meta_old)
!identical(as.integer(seed), as.integer(meta$seed))
}
trigger_format <- function(target, meta, config) {
meta_old <- drake_meta_old(target, config)
format_new <- meta$format
format_old <- meta_old$format
if (is.null(format_new) || is.null(format_old)) {
return(FALSE)
}
!identical(format_new, format_old)
}
trigger_condition <- function(target, meta, config) {
if (!length(target) || !length(config) || !length(meta)) {
return(FALSE)
}
if (is.language(meta$trigger$condition)) {
try_load_deps(
config$spec[[target]]$deps_condition$memory,
config = config
)
value <- eval(meta$trigger$condition, envir = config$envir_targets)
} else {
value <- meta$trigger$condition
}
value <- as.logical(value)
if (length(value) != 1 || !is.logical(value)) {
msg <- paste0(
"The `condition` trigger must evaluate to a logical of length 1. ",
"got `", value, "` for target ", target, "."
)
config$logger$disk(paste("Error:", msg))
stop0(msg)
}
condition_decision(value = value, mode = meta$trigger$mode)
}
condition_decision <- function(value, mode) {
if (identical(mode, "whitelist") && identical(value, TRUE)) {
return(TRUE)
}
if (identical(mode, "blacklist") && identical(value, FALSE)) {
return(as_final_trigger(FALSE))
}
if (identical(mode, "condition")) {
return(as_final_trigger(value))
}
FALSE
}
as_final_trigger <- function(x) {
structure(x, class = "final_trigger")
}
is_final_trigger <- function(x) {
inherits(x, "final_trigger")
}
trigger_change <- function(target, meta, config) {
if (!length(target) || !length(config) || !length(meta)) {
return(FALSE)
}
if (!config$cache$exists(key = target, namespace = "change")) {
return(TRUE) # nocov
}
old_value <- config$cache$get(
key = target,
namespace = "change",
use_cache = FALSE
)
!identical(old_value, meta$trigger$value)
}
trigger_dynamic <- function(target, meta, config) {
meta_old <- drake_meta_old(target, config)
old_hash <- meta_elt(field = "dynamic_dependency_hash", meta = meta_old)
if (!identical(meta$dynamic_dependency_hash, old_hash)) {
return(TRUE)
}
if (!identical(meta$max_expand, meta_old$max_expand)) {
return(TRUE)
}
FALSE
}
trigger_format_file <- function(target, meta, config) {
meta_old <- drake_meta_old(target, config)
hash_new <- meta$format_file_hash
hash_old <- meta_old$format_file_hash
!identical(hash_new, hash_old)
}
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