Re: Dev - Request to Use a Distributed Version Control System When Code Base Changes

Posted by David E. Jones on
URL: http://ofbiz.116.s1.nabble.com/Dev-Request-to-Use-a-Distributed-Version-Control-System-When-Code-Base-Changes-tp167349p167357.html


Vinay,

You can do all of these things by setting up your own local SVN repository and using the vendor branch pattern for the OFBiz updates. This can do all of the merging and what not in an automated way (barring conflicts, which always have to be manually resolved regardless of the system).

Like Adam mentioned there are things built to work with SVN, like SVK, to make this easier to manage.

-David


Vinay Agarwal wrote:

> David,
>
> My personal "problem" with svn is that I can not "commit" my "local" changes
> (that I do not want to share with OFBiz). I have tried unsuccessfully many
> things to solve it and had a discussion on Users list titles "SVN
> Replication." The solution the industry seems to believe is "distributed" or
> "decentralized" version control systems.
>
> If OFBiz were to use such system, I would be able to make a local repository
> of OFBiz on my own server. My team members can checkout and commit changes
> from/to this local repository at wish and get all the benefit of a version
> control system. In order to update the local repository with OFBiz changes,
> all I would need to do is execute "pull" command and changes would be
> applied automatically. I can choose to "push" selected changes back to OFBiz
> main repository (if I have write access). My team members can execute
> "update" command on their machines and they will get OFBiz updates that are
> available in the local repository. So, the benefits are
> 1. Proper source code management for a larger project
> 2. Team members' work is merged programmatically. With SVN, I have to
> determine which files were changed by a team member and then copy them to a
> common OFBiz working copy.
> 3. Central place to store all the changes to OFBiz main code base which can
> be kept private for commercial applications.
>
> Here's a quote from this link http://dwheeler.com/essays/scm.html
>
> As you can tell, there seems to be two different schools of thought on how
> SCM systems should work. Some people believe SCM systems should primarily
> aid in controlling a centralized repository, and so they design their tool
> to support a centralized repository (such as CVS and Subversion). Others
> believe SCM systems should primarily aid in allowing independent developers
> to work asynchronously, and then synchronize and pull in changes from each
> others, so they develop tools to support a decentralized approach (like GNU
> arch, monotone, darcs, Bazaar-NG, and Bitkeeper).
>
> Here are some other links:
>
> http://zooko.com/revision_control_quick_ref.html
>
> http://better-scm.berlios.de/comparison/
>
> Regards,
> Vinay Agarwal
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On
> Behalf Of David E. Jones
> Sent: Thursday, March 23, 2006 10:46 AM
> To: OFBiz Project Development Discussion
> Subject: Re: [OFBiz] Dev - Request to Use a Distributed Version Control
> System When Code Base Changes
>
>
> Vinay,
>
> How is what these offer better than the SubVersion/SVN capabilities in this
> area? We currently use SVN and plan to continue using it after the Apache
> move.
>
> -David
>
>
> Vinay Agarwal wrote:
>> Hello,
>>
>>  
>>
>> May I request to use a distributed version control system (monotone,
>> DARCS, mercurial, bazaar-ng etc.) when the code base is switched over to
>> Apache?
>>
>>  
>>
>> Problem:
>>
>> OFBiz is a fast changing project and expected to maintain its pace for
>> the next year or so. A "significant" customization of OFBiz may require
>> multiple engineers, significant development time, and need for
>> maintaining local changes in a version control system. If such an effort
>> chooses to develop from a snapshot of OFBiz, it is likely to miss out on
>> constant improvements and may require a large "merge" effort eventually.
>> If the effort chooses to be in sync with OFBiz constantly (like me),
>> then local version control becomes very difficult.
>>
>>  
>>
>> Solution:
>>
>> The so-called distributed version control systems allow local
>> repositories, local changes, and sync capabilities with the main
>> repository. There are many such open-source products and I can help
>> investigate the best option.
>>
>>  
>>
>> The catch:
>>
>> None of them have a "complete" Eclipse plugin or a GUI mode. DARCS has a
>> very primitive eclipse plugin but not sure where that effort is headed.
>>
>>  
>>
>> Regards,
>>
>> Vinay Agarwal
>>
>>  
>>
>>
>> ------------------------------------------------------------------------
>>
>>  
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