01/27: gnu: Add r-sys.

[guix-commits]

rekado pushed a commit to branch master
in repository guix.

commit 2b106a8d71c90df54e94ec5356e0aebcc5245416
Author: Ricardo Wurmus <address@hidden>
Date:   Mon Jan 28 16:11:57 2019 +0100

    gnu: Add r-sys.
    
    * gnu/packages/cran.scm (r-sys): New variable.
---
 gnu/packages/cran.scm | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 1bd20b1..76314ff 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -83,6 +83,31 @@
 the system clipboards.")
     (license license:gpl3)))
 
+(define-public r-sys
+  (package
+    (name "r-sys")
+    (version "2.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "sys" version))
+       (sha256
+        (base32
+         "10ml2492bdllh6cz2zl192ip0fdgjkkgayggd3ghswsj5gjv5hrh"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/jeroen/sys";)
+    (synopsis "Powerful and reliable tools for running system commands in R")
+    (description
+     "This package provides drop-in replacements for the base @code{system2()}
+function with fine control and consistent behavior across platforms.  It
+supports clean interruption, timeout, background tasks, and streaming STDIN /
+STDOUT / STDERR over binary or text connections.  The package also provides
+functions for evaluating expressions inside a temporary fork.  Such
+evaluations have no side effects on the main R process, and support reliable
+interrupts and timeouts.  This provides the basis for a sandboxing
+mechanism.")
+    (license license:expat)))
+
 (define-public r-vegan
   (package
     (name "r-vegan")