mdsums: SHA256 checksums of bundled rmoriedata files

In rmoriedata: Integrated Datasets for the 'rmorie' Package

SHA256 checksums of bundled rmoriedata files

Description

Computes the SHA256 digest of every file rmoriedata bundles in inst/extdata, using the shared provenance layer (rmoriebricklayer::sha256file()), and compares each with the digest the signed manifest records for it (in_manifest). For the full check, signature included, use mdverify(); this function is the per-file record an analysis can pin and compare later.

Usage

mdsums()

Value

A data frame with one row per bundled file and columns path (relative to the extdata root, forward slashes, unique), file (the bare basename), bytes, sha256, and in_manifest (TRUE when the signed manifest lists the file with this digest; NA for the manifest's own files). Use path to locate a file; several basenames recur in more than one directory.

Examples

# One row per bundled file: name, size in bytes, SHA256 digest.
ck <- mdsums()
str(ck)
head(ck)

# Total bundled payload and the largest few files.
sum(ck$bytes)
head(ck[order(-ck$bytes), c("file", "bytes")], 3)

# Provenance workflow: pin the digest of a file you depend on, then
# assert it hasn't changed under you in a later session / reinstall.
if (nrow(ck)) {
  pinned <- ck$sha256[1]
  again <- mdsums()
  stopifnot(again$sha256[again$path == ck$path[1]] == pinned)
}

rmoriedata documentation built on Nov. 12, 2026, 9:06 a.m.