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pluck <- function(x, name, type) {
if (missing(type)) {
lapply(x, "[[", name)
} else {
vapply(x, "[[", name, FUN.VALUE = type)
}
}
last <- function(x) {
if (length(x) == 0) {
return(list())
} else {
x[length(x)][1]
}
}
errmssg <- "use_cassette requires a block.\nIf you cannot wrap your code in a block, use\ninsert_cassette / eject_cassette instead."
compact <- function(x) Filter(Negate(is.null), x)
`%||%` <- function(x, y) {
if (missing(x) || is.null(x) || all(nchar(x) == 0) || length(x) == 0) y else x
}
`%try%` <- function(x, y) {
z <- tryCatch(x, error = function(e) e)
if (inherits(z, "error")) y else x
}
stract <- function(str, pattern) regmatches(str, regexpr(pattern, str))
assert <- function(x, y) {
if (!is.null(x)) {
if (!inherits(x, y)) {
stop(deparse(substitute(x)), " must be of class ",
paste0(y, collapse = ", "), call. = FALSE)
}
}
invisible(x)
}
merge_list <- function(x, y, ...) {
if (length(x) == 0) return(y)
if (length(y) == 0) return(x)
z <- match(names(y), names(x))
z <- is.na(z)
if (any(z)) {
x[names(y)[which(z)]] = y[which(z)]
}
x
}
check_for_a_pkg <- function(x) {
if (!requireNamespace(x, quietly = TRUE)) {
stop("Please install ", x, call. = FALSE)
} else {
invisible(TRUE)
}
}
has_internet <- function() {
z <- try(suppressWarnings(readLines('https://www.google.com', n = 1)),
silent = TRUE)
!inherits(z, "try-error")
}
can_rawToChar <- function(x) {
z <- tryCatch(rawToChar(x), error = function(e) e)
return(!inherits(z, "error"))
}
can_charToRaw <- function(x) {
z <- tryCatch(charToRaw(x), error = function(e) e)
return(!inherits(z, "error"))
}
stp <- function(...) stop(..., call. = FALSE)
check_cassette_name <- function(x) {
if (grepl("\\s", x))
stp("no spaces allowed in cassette names")
if (grepl("\\.yml$|\\.yaml$", x))
stp("don't include a cassette path extension")
# the below adapted from fs::path_sanitize, which adapted
# from the npm package sanitize-filename
illegal <- "[/\\?<>\\:*|\":]"
control <- "[[:cntrl:]]"
reserved <- "^[.]+$"
windows_reserved <- "^(con|prn|aux|nul|com[0-9]|lpt[0-9])([.].*)?$"
windows_trailing <- "[. ]+$"
if (grepl(illegal, x))
stp("none of the following characters allowed in cassette ",
"names: (/, ?, <, >, \\, :, *, |, and \")")
if (grepl(control, x))
stp("no control characters allowed in cassette names")
if (grepl(reserved, x))
stp("cassette names can not be simply ., .., etc.")
if (grepl(windows_reserved, x))
stp("cassette names can not have reserved windows strings")
if (grepl(windows_trailing, x))
stp("cassette names can not have a trailing .")
if (nchar(x) > 255)
stp("cassette name can not be > 255 characters")
}
check_request_matchers <- function(x) {
mro <- c("method", "uri", "headers", "host", "path", "body", "query")
if (!all(x %in% mro)) {
stop("1 or more 'match_requests_on' values (",
paste0(x, collapse = ", "),
") is not in the allowed set: ",
paste0(mro, collapse = ", "), call. = FALSE)
}
x
}
check_record_mode <- function(x) {
stopifnot(length(x) == 1, is.character(x))
recmodes <- c("none", "once", "new_episodes", "all")
if (!x %in% recmodes) {
stop("'record' value of '", x, "' is not in the allowed set: ",
paste0(recmodes, collapse = ", "), call. = FALSE)
}
x
}
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