[DRE-maint] Bug#655896: Bug#655896: Rails depends on the wrong version of librack-ruby, which leads to a loss of data in redmine.

[Kubo Hiroshi]

Hi,

From:  <ondrej at sury.org>
Date: Sun, 15 Jan 2012 11:04:05 +0100

> Hi,
> 
> in Debian it is not responsibility of individual packages, but generaly of a packaging system.
> 
> Unfortunatelly what you are asking is impossible to achieve. I believe it's not a bug, but a failed ruby concept of havimg versioned dependencies but no SONAMEs. Therefore there can be only one rack package installed at the time.

Hmm.

* The original rails insists it requires rack 1.0.1.

* Actually a loss of data has occurred with the rack 1.1.0.

So, the "only one rack package" should be the one whose version is 1.0.1, isn't it?

And to achieve it, I wonder is there another way.

> 
> I believe it's the source code in the package which needs fixing and not the  versioned depends.

I didn't figure out which source code you are referring to.

I just want to overcome the loss of data, and am willing to be convinced :-)

Thank you.
---
Kubo Hiroshi <h-kubo at geisya.or.jp>
Blog: http://cryptotaenian.blogspot.com/


> 
> Ondřej Surý
> 
> On 15. 1. 2012, at 5:06, Kubo Hiroshi <h-kubo at geisya.or.jp> wrote:
> 
>> Jérémy, thank you for your quick response.
>> 
>> From:  <jerry at edagames.com>
>> Date: Sat, 14 Jan 2012 19:38:11 +0100
>> 
>>> On 14/01/2012 17:10, Kubo Hiroshi wrote:
>>>> Package: libactivesupport-ruby1.8 
>>>> Source: rails
>>>> Version: 2.3.5-1.2+squeeze1
>>>> Tags: redmine librack-ruby libactivesupport-ruby
>>>> Severity: grave
>>>> 
>>>> In squeeze, when redmine package is installed, rails 2.3.5-11.2+squeeze1
>>>> and librack-ruby 1.1.0-4 are installed at the same time for its dependency.
>>>> 
>>>> But in the upstream document of the Redmine 1.0.1,
>>>> rack 1.0.1 is officially supported, not 1.1.0.
>>> 
>>> Why do you think it's a bug in rails package ?
>>> Reading your report it looks more like a bug in redmine.
>>> 
>> 
>> As far as I read the source code, keeping correct combination
>> of the versions is rails' responsibility, not redmine's.
>> 
>> The patch 'debian-changes-2.3.5-1' included in the rails
>> source package overwrites the original gem's version check as follows:
>> 
>> -gem 'rack', '~> 1.0.1'
>> -require 'rack'
>> +begin
>> +  require 'rack'
>> +rescue LoadError
>> +  gem 'rack', '~> 1.0.1'
>> +  require 'rack'
>> +end
>> 
>> 
>> ---
>> Kubo Hiroshi <h-kubo at geisya.or.jp>
>> Blog: http://cryptotaenian.blogspot.com/
>> 
>> 
>> 
>>> 
>>> For the record, i reproduced taht bug with (these intermediate versions) :
>>>  redmine 1.1.3-1
>>>  rails 2.3.11-0.1
>>>  librack-ruby 1.1.0-4
>>> 
>>> But not in debian/testing.
>>> 
>>> Jérémy.
>>> 
>> 
>> 
>>