gnu: Add r-tarchetypes.

* gnu/packages/cran.scm (r-tarchetypes): New variable.

Signed-off-by: Ricardo Wurmus <rekado@elephly.net>

gnu/packages/cran.scm

@@ -14456,6 +14456,43 @@ (define-public r-tab
 handle data from simple random samples as well as complex surveys.")
     (license license:gpl3+)))
 
+(define-public r-tarchetypes
+  (package
+    (name "r-tarchetypes")
+    (version "0.7.5")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "tarchetypes" version))
+              (sha256
+               (base32
+                "05yhq8xnrpk37x7fq0yjw4m527ji28s16dskfmljrbrzb064nw2g"))))
+    (properties `((upstream-name . "tarchetypes")))
+    (build-system r-build-system)
+    (propagated-inputs (list r-digest
+                             r-dplyr
+                             r-fs
+                             r-furrr
+                             r-future
+                             r-future-callr
+                             r-rlang
+                             r-targets
+                             r-tibble
+                             r-tidyselect
+                             r-vctrs
+                             r-withr))
+    (home-page "https://docs.ropensci.org/tarchetypes/")
+    (synopsis "Archetypes for Targets")
+    (description
+     "Function-oriented Make-like declarative pipelines for statistics and
+data science are supported in the targets R package.  As an extension to
+targets, the tarchetypes package provides convenient user-side functions to
+make targets easier to use.  By establishing reusable archetypes for common
+kinds of targets and pipelines, these functions help express complicated
+reproducible pipelines concisely and compactly.  The methods in this package
+were influenced by the drake R package by Will Landau (2018)
+<doi:10.21105/joss.00550>.")
+    (license license:expat)))
+
 (define-public r-targets
   (package
     (name "r-targets")