On Thu, Jan 21, 2016 at 10:40:41AM +0100, Ricardo Wurmus wrote: > > Leo Famulari <l...@famulari.name> writes: > > > That sounds good to me. There was some discussion of how much of the > > hash to keep here: > > http://lists.gnu.org/archive/html/guix-devel/2015-12/msg00136.html > > > > I like this method that I've seen in some of the packages, because it > > keeps the version tidy while preserving the full hash: > > > > --8<---------------cut here---------------start------------->8--- > > (define-public hello > > (let ((commit "e8e46123cfe62170a2f7f79db6b471b66ae36947")) > > (package > > (name "hello") > > (version (string-append "2.10-1" (string-take commit 8))) > > (source (origin > > (method git-fetch) > > (uri (git-reference > > (url "git://git.sv.gnu.org/hello.git") > > (commit commit))) > > (sha256 > > [...] > > --8<---------------cut here---------------end--------------->8--- > > I like this approach (though I’ve been taking 9 characters of the commit > ;)).
I like 10 but I wanted to match your example upthread ;) It doesn't matter so much if you preserve the full hash as in this case; you can always add more characters later. > > ~~ Ricardo