nealrichardson commented on code in PR #39587:
URL: https://github.com/apache/arrow/pull/39587#discussion_r1451556297
##########
r/tools/nixlibs.R:
##########
@@ -96,53 +96,76 @@ try_download <- function(from_url, to_file, hush = quietly)
{
!inherits(status, "try-error") && status == 0
}
-download_binary <- function(lib) {
- libfile <- paste0("arrow-", VERSION, ".zip")
- binary_url <- paste0(arrow_repo, "bin/", lib, "/arrow-", VERSION, ".zip")
- if (try_download(binary_url, libfile)) {
- lg("Successfully retrieved libarrow (%s)", lib)
- } else {
- lg(
- "Downloading libarrow failed for version %s (%s)\n at %s",
- VERSION, lib, binary_url
- )
- libfile <- NULL
- }
+try_checksum <- function(binary_url, libfile, hush = quietly) {
# Explicitly setting the env var to "false" will skip checksum validation
# e.g. in case the included checksums are stale.
skip_checksum <- env_is("ARROW_R_ENFORCE_CHECKSUM", "false")
enforce_checksum <- env_is("ARROW_R_ENFORCE_CHECKSUM", "true")
checksum_path <- Sys.getenv("ARROW_R_CHECKSUM_PATH", "tools/checksums")
# validate binary checksum for CRAN release only
- if (!skip_checksum && dir.exists(checksum_path) && is_release ||
- enforce_checksum) {
- checksum_file <- sub(".+/bin/(.+\\.zip)", "\\1\\.sha512", binary_url)
- checksum_file <- file.path(checksum_path, checksum_file)
- checksum_cmd <- "shasum"
- checksum_args <- c("--status", "-a", "512", "-c", checksum_file)
-
- # shasum is not available on all linux versions
- status_shasum <- try(
- suppressWarnings(
- system2("shasum", args = c("--help"), stdout = FALSE, stderr = FALSE)
- ),
- silent = TRUE
- )
+ # we do this in a try so that if it fails for any reason, we don't pollute
the log
+ # but then we will return that the checksum failed
+ status <- try(
+ {
+ if (!skip_checksum && dir.exists(checksum_path) && is_release ||
+ enforce_checksum) {
+ checksum_file <- sub(".+/bin/(.+\\.zip)", "\\1\\.sha512", binary_url)
+ checksum_file <- file.path(checksum_path, checksum_file)
+ checksum_cmd <- "shasum"
+ checksum_args <- c("--status", "-a", "512", "-c", checksum_file)
+
+ # shasum is not available on all linux versions, so check help if it
exists
+ status_shasum <- try(
+ suppressWarnings(
+ system2("shasum", args = c("--help"), stdout = FALSE, stderr =
FALSE)
+ ),
+ silent = TRUE
+ )
- if (inherits(status_shasum, "try-error") || is.integer(status_shasum) &&
status_shasum != 0) {
- checksum_cmd <- "sha512sum"
- checksum_args <- c("--status", "-c", checksum_file)
- }
+ # if shasum doens't exist, then change the command to sha512sum
+ if (inherits(status_shasum, "try-error") || is.integer(status_shasum)
&& status_shasum != 0) {
+ checksum_cmd <- "sha512sum"
+ checksum_args <- c("--status", "-c", checksum_file)
+ }
- checksum_ok <- system2(checksum_cmd, args = checksum_args)
+ checksum_ok <- system2(checksum_cmd, args = checksum_args)
- if (checksum_ok != 0) {
- lg("Checksum validation failed for libarrow: %s/%s", lib, libfile)
- unlink(libfile)
- libfile <- NULL
- } else {
- lg("Checksum validated successfully for libarrow: %s/%s", lib, libfile)
+ if (checksum_ok != 0) {
+ lg("Checksum validation failed for libarrow: %s/%s", lib, libfile)
+ unlink(libfile)
+ stop("The checksum failed")
+ } else {
+ lg("Checksum validated successfully for libarrow: %s/%s", lib,
libfile)
Review Comment:
In fact, you can probably just say "Checksum validated/failed". (Might be
nice to print the checksum here, or even show the output of shasum, in case
it's useful to show receipts.)
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