Re: [PATCH v4 2/2] version-gen: fix versions

[Felipe Contreras <felipe.contreras@gmail.com>]

On Sun, Oct 13, 2013 at 4:56 PM, David Aguilar <davvid@gmail.com> wrote:
> On Sat, Oct 12, 2013 at 12:07 AM, Felipe Contreras
> <felipe.contreras@gmail.com> wrote:
>> Virtually all packaging guidelines would prefer 1.8.4~rc1, over
>> 1.8.4.rc1 or 1.8.4-rc1, so it makes sense to use that instead.
>>
>> In particular, the only packaging we provide, git.spec, generates a
>> wrong version, because git-1.8.4 < git-1.8.4.rc1, changing to ~rc1 fixes
>> the problem as it's considered newer.
>>
>> The same happens in dpkg.
>>
>> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
>> ---
>>  GIT-VERSION-GEN | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
>> index e96538d..c04c4de 100755
>> --- a/GIT-VERSION-GEN
>> +++ b/GIT-VERSION-GEN
>> @@ -28,7 +28,7 @@ then
>>         VN=$(cat version) || VN="$DEF_VER"
>>  elif test -d ${GIT_DIR:-.git} -o -f .git && describe
>>  then
>> -       VN=$(echo "$VN" | sed -e 's/-/./g')
>> +       VN=$(echo "$VN" | sed -e 's/-/~/g')
>>  else
>>         VN="$DEF_VER"
>>  fi
>> --
>
> This seems related:
>
> http://lintian.debian.org/tags/rc-version-greater-than-expected-version.html
>
> Should the RC tags in the Git repo be named v1.2.3~rc4 (tilde-rc#)
> instead of dash-rc#, or does that not matter?

I thought so first, but then I realized ~ is not allowed in a ref.

> If so, would that change anything about this patch, or is it better to
> normalize it all here?
>
> The input is subtly different sometimes so I'm curious whether whether
> "~" is preferred in all cases (particularly, by all package managers).
>  e.g.

All package managers I investigated do handle ~ specially, and thus
recommend it for rc versioning, except pacman. So in pacman,
v1.5.0~rc4 would remain newer than v1.5.0, but that's not different
from the current situation, and there isn't much we can do about that.

> $ git describe v1.5.0^
> v1.5.0-rc4-372-g26cfcfb
>
> $ git describe v1.5.0.1^
> v1.5.0-27-g38eb932

At least both in RPM and dpkg, 1.5.0~27 is newer than 1.5.0~rc4.

-- 
Felipe Contreras