karldw commented on a change in pull request #11001:
URL: https://github.com/apache/arrow/pull/11001#discussion_r697552783
##########
File path: r/R/util.R
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@@ -183,3 +183,63 @@ repeat_value_as_array <- function(object, n) {
}
return(Scalar$create(object)$as_array(n))
}
+
+
+#' Download all optional Arrow dependencies
+#'
+#' @param deps_dir Directory to save files into. Will be created if necessary.
+#'
+#' @return TRUE/FALSE for whether the downloads were successful
+#'
+#' This function is used for setting up an offline build. If it's possible to
+#' download at build time, don't use this function. Instead, let `cmake`
+#' download them for you.
+#' If the files already exist in `deps_dir`, they will be re-downloaded and
+#' overwritten. Other files are not changed.
+#' These saved files are only used in the build if `ARROW_DEPENDENCY_SOURCE`
+#' is `BUNDLED` or `AUTO`.
+#' https://arrow.apache.org/docs/developers/cpp/building.html#offline-builds
+#'
+#' Steps for an offline install with optional dependencies:
+#' - Install the `arrow` package on a computer with internet access
Review comment:
I'm happy to move it over, and it would definitely be a smoother process
than installing twice, but how do you want to handle the
`thirdparty/download_dependencies.sh` and `thirdparty/versions.txt` files?
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