GitHub is a terrible upstream

[Nikola Pajkovsky]

Pete Zaitcev <zaitcev at redhat.com> writes:

> On Mon, 23 Apr 2012 14:08:05 -0600
> Orion Poplawski <orion at cora.nwra.com> wrote:
>
>> %global commit bd245c9
>> 
>> Source0: 
>> https://github.com/jukka/pcfi/tarball/%{commit}/jukka-pcfi-%{commit}.tar.gz
>> 
>> %setup -q -n jukka-pcfi-%{commit}
>
> I do not understand how this is supposed to work in the face of
> "yum update".
>
> Suppose I cut a package last year:
>  swift3-1.0.0-878c23.tag.xz
> Then I build an RPM:
>  openstack-swift-plugin-swift3-1.0.0-878c23-1.fc17.noarch.rpm
>
> Today I run the same git-archve and get:
>  swift3-1.0.0-5c74ba.tag.xz
>  openstack-swift-plugin-swift3-1.0.0-5c74ba-1.fc18.noarch.rpm
>
> Great, how do I update from the old one to the new one? Please do not
> suggest epoch.

DEF_VER='<latest-stable-version>'

if test -d .git -o -f .git &&
    VN=$(git describe --tags --match "[0-9]*" --abbrev=4 HEAD 2>/dev/null) &&
    case "$VN" in
	*$LF*) (exit 1) ;;
	[0-9]*)
	    git update-index -q --refresh
	    test -z "$(git diff-index --name-only HEAD --)" || VN="$VN-dirty"
    esac
then
    VN=$(echo "$VN" | sed -e 's/-/./g');
else
    VN="$DEF_VER"
fi


-- 
Nikola