12/14: gnu: Add cl-exponential-backoff.

[guix-commits]

glv pushed a commit to branch master
in repository guix.

commit aae3df1817ebb98891ce5866c908b3a9a009835a
Author: Katherine Cox-Buday <cox.katherine.e@gmail.com>
AuthorDate: Tue Jun 2 12:47:09 2020 -0500

    gnu: Add cl-exponential-backoff.
    
    * gnu/packages/lisp-xyz.scm (sbcl-exponential-backoff, 
cl-exponential-backoff,
      ecl-exponential-backoff): New variables.
    
    Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>
---
 gnu/packages/lisp-xyz.scm | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index f6f523d..62977f5 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -11800,3 +11800,33 @@ This is intended to be a successor of Prove.")
 
 (define-public ecl-rove
   (sbcl-package->ecl-package sbcl-rove))
+
+(define-public sbcl-exponential-backoff
+  (let ((commit "8d9e8444d8b3184a524c12ce3449f91613ab714f"))
+    (package
+      (name "sbcl-exponential-backoff")
+      (version (git-version "0" "1" commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/death/exponential-backoff.git";)
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "1389hm9hxv85s0125ja4js1bvh8ay4dsy9q1gaynjv27ynik6gmv"))))
+      (build-system asdf-build-system/sbcl)
+      (home-page "https://github.com/death/exponential-backoff";)
+      (synopsis "Exponential backoff algorithm in Common Lisp")
+      (description
+       "An implementation of the exponential backoff algorithm in Common Lisp.
+Inspired by the implementation found in Chromium.  Read the header file to
+learn about each of the parameters.")
+      (license license:expat))))
+
+(define-public cl-exponential-backoff
+  (sbcl-package->cl-source-package sbcl-exponential-backoff))
+
+(define-public ecl-exponential-backoff
+  (sbcl-package->ecl-package sbcl-exponential-backoff))