checkpoint: Install Packages from Snapshots on the Checkpoint Server for Reproducibility

The goal of checkpoint is to solve the problem of package reproducibility in R. Specifically, checkpoint allows you to install packages as they existed on CRAN on a specific snapshot date as if you had a CRAN time machine. To achieve reproducibility, the checkpoint() function installs the packages required or called by your project and scripts to a local library exactly as they existed at the specified point in time. Only those packages are available to your project, thereby avoiding any package updates that came later and may have altered your results. In this way, anyone using checkpoint's checkpoint() can ensure the reproducibility of your scripts or projects at any time. To create the snapshot archives, once a day (at midnight UTC) Microsoft refreshes the Austria CRAN mirror on the "Microsoft R Archived Network" server (<>). Immediately after completion of the rsync mirror process, the process takes a snapshot, thus creating the archive. Snapshot archives exist starting from 2014-09-17.

Version: 1.0.2
Depends: R (≥ 3.3.0)
Imports: utils, tools, jsonlite, yaml, withr, pkgdepends
Suggests: pkgcache, knitr, rmarkdown, testthat, darts
Published: 2022-01-28
DOI: 10.32614/CRAN.package.checkpoint
Author: Folashade Daniel [cre], Hong Ooi [aut], Andrie de Vries [aut], Gábor Csárdi [ctb] (Assistance with pkgdepends), Microsoft [aut, cph]
Maintainer: Folashade Daniel <fdaniel at>
License: GPL-2
NeedsCompilation: no
Materials: README NEWS
In views: ReproducibleResearch
CRAN checks: checkpoint results


Reference manual: checkpoint.pdf
Vignettes: Using checkpoint for reproducible research


Package source: checkpoint_1.0.2.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): checkpoint_1.0.2.tgz, r-oldrel (arm64): checkpoint_1.0.2.tgz, r-release (x86_64): checkpoint_1.0.2.tgz, r-oldrel (x86_64): checkpoint_1.0.2.tgz
Old sources: checkpoint archive


Please use the canonical form to link to this page.