[PATCH] gnu: Add Pfff.

[PATCH] gnu: Add Pfff.

[Pjotr Prins]

* gnu/packages/hash.scm (pfff): New variable.
---
 gnu/packages/hash.scm |   29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 gnu/packages/hash.scm

diff --git a/gnu/packages/hash.scm b/gnu/packages/hash.scm
new file mode 100644
index 0000000..c3cbd85
--- /dev/null
+++ b/gnu/packages/hash.scm
@@ -0,0 +1,29 @@
+(define-module (gnu packages hash)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system cmake))
+
+(define-public pfff
+  (package
+    (name "pfff")
+    (version "1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/pfff/pfff/archive/v" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "00m553aa277iarxj6dalmklyb64r7ias49bfwzbacsfg8h3kar8m"))))
+    (build-system cmake-build-system)
+    (home-page "http://biit.cs.ut.ee/pfff/")
+    (synopsis "Probabilistic fast file fingerprinting tool")
+    (description
+     "Calculate a pfff-value which functions as a compact digital
+fingerprint of a file by sampling randomly from the file instead of
+reading it in full.  Consequently, the computation has a flat
+performance characteristic, correlated with data variation rather than
+file size.  pfff can be as reliable as existing hashing techniques,
+with provably negligible risk of collisions.")
+    (license license:bsd-3)))
-- 
1.7.10.4

Re: [PATCH] gnu: Add Pfff.

[Ricardo Wurmus]

Pjotr Prins <pjotr.public12@thebird.nl> writes:

> * gnu/packages/hash.scm (pfff): New variable.

I changed the description to use full sentences, moved the expression to
textutils.scm (for lack of a better module), updated the commit message
and pushed.

Thanks!

~~ Ricardo