Nothing
#' Manage cached files
#'
#' @export
#' @name oa_cache
#' @param files File name or names
#' @param force (logical) Should files be force deleted? Default: \code{FALSE}
#' @details \code{cache_delete} only accepts 1 file name, while \code{cache_delete_all}
#' doesn't accept any names, but deletes all files. For deleting many specific files,
#' use \code{cache_delete} in a \code{\link{lapply}} type call
#'
#' @details We cache using \code{\link[rappdirs]{user_cache_dir}}, find your cache
#' folder by executing \code{rappdirs::user_cache_dir("openadds-cache")}
#'
#' @examples \dontrun{
#' # list files in cache
#' oa_cache_list()
#'
#' # List info for single files
#' oa_cache_details(files = oa_cache_list()[1])
#' oa_cache_details(files = oa_cache_list()[2])
#'
#' # List info for all files
#' oa_cache_details()
#'
#' # delete files by name in cache
#' # oa_cache_delete(files = oa_cache_list()[1])
#'
#' # delete all files in cache - BE CAREFUL, MAKE SURE YOU WANT TO DO THIS
#' # oa_cache_delete_all()
#' }
#' @export
#' @rdname oa_cache
oa_cache_list <- function() {
list.files(oa_cache_path(), pattern = ".csv|.zip|.shp|.geojson", ignore.case = TRUE,
recursive = TRUE, full.names = TRUE)
}
#' @export
#' @rdname oa_cache
oa_cache_delete <- function(files, force = TRUE) {
if (!all(file.exists(files))) {
stop("These files don't exist or can't be found: \n",
strwrap(files[!file.exists(files)], indent = 5), call. = FALSE)
}
# find parent folder
dirs <- list.files(oa_cache_path(), full.names = TRUE)
files_dir <- unlist(lapply(files, function(z) {
dirs[vapply(dirs, function(x) grepl(x, z), logical(1))]
}))
# delete it
unlink(files_dir, force = force, recursive = TRUE)
}
#' @export
#' @rdname oa_cache
oa_cache_delete_all <- function(force = TRUE) {
# files <- list.files(oa_cache_path(), pattern = ".csv|.zip|.shp|.geojson", ignore.case = TRUE,
# full.names = TRUE, recursive = TRUE)
dirs <- list.files(oa_cache_path(), full.names = TRUE)
unlink(dirs, force = force, recursive = TRUE)
}
#' @export
#' @rdname oa_cache
oa_cache_details <- function(files = NULL) {
if (is.null(files)) {
files <- list.files(oa_cache_path(), pattern = ".csv|.zip|.shp|.geojson", ignore.case = TRUE,
full.names = TRUE, recursive = TRUE)
structure(lapply(files, file_info_), class = "oa_cache_info")
} else {
structure(lapply(files, file_info_), class = "oa_cache_info")
}
}
file_info_ <- function(x) {
fs <- file.size(x)
list(file = x,
type = strextract(basename(x), "\\.zip|\\.csv"),
size = if (!is.na(fs)) getsize(fs) else NA
)
}
getsize <- function(x) round(x/10 ^ 6, 3)
#' @export
print.oa_cache <- function(x, ...) {
cat("<openadds cached files>", sep = "\n")
cat(" ZIP files: ", strwrap(x$zip, indent = 5), sep = "\n")
cat(" CSV files: ", strwrap(x$csv, indent = 5), sep = "\n")
}
#' @export
print.oa_cache_info <- function(x, ...) {
cat("<openadds cached files>", sep = "\n")
for (i in seq_along(x)) {
cat(paste0(" File: ", x[[i]]$file), sep = "\n")
cat(paste0(" Size: ", x[[i]]$size, " mb"), sep = "\n")
cat("\n")
}
}
oa_cache_path <- function() rappdirs::user_cache_dir("openadds-cache")
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.