[webkit-dev] Faster Git SVN updates

[Eric Seidel]

Specifically, if this fancy method is the "recommended" way to set up a
WebKit git repository, I would be very interested in adding it to the
official webkit.org checkout instructions and/or creating a script to
automate the process, and certainly updating update-webkit to do the right
thing:
http://trac.webkit.org/browser/trunk/WebKitTools/Scripts/update-webkit#L127
(like maybe add a git fetch in there? before or after the git svn rebase?)

update-webkit is used by all the bots, including the ews-bots which use git
repositories.

-eric

On Thu, Nov 18, 2010 at 3:36 PM, David Levin <levin at google.com> wrote:

> Added by dimich, but it is a tip from Albert and I think how most chromium
> enlistments for git are setup iirc).
>
> dave
>
> On Thu, Nov 18, 2010 at 3:32 PM, Eric Seidel <eric at webkit.org> wrote:
>
>> There is this section of the WebKit Git wiki (
>> http://trac.webkit.org/wiki/UsingGitWithWebKit):
>>
>> If you don't fetch new revisions from Subversion very often and find
>> fetching them one by one too slow, you can modify the svn section in your
>> .git/config file to point directly to the *refs/remotes/origin/master* rather
>> then*refs/remotes/trunk* which is how it is set up by default. In this
>> case 'git svn fetch' will be way faster if done after "git fetch" or "git
>> pull", since it'll realize it already has all the revisions locally. Edit
>> your svn entry to look like this:
>>
>> [svn-remote "svn"]
>>         url = http://svn.webkit.org/repository/webkit
>>         fetch = trunk:refs/remotes/origin/master
>>
>> and then re-build the svn index by doing 'git svn fetch' once.
>>
>>
>> It's some magical setup by which your git svn fetchs will be much faser.
>>  But I've heard it's buggy?  Can lead to local repository corruption?
>>
>> Can someone set me straight?
>>
>> The current git svn fetch is *super* slow.  Especially if you're behind by
>> more than a day or two.
>>
>> If there was a way to make this faster method safe, by wrapping it in some
>> other (error-checking) command which knew how to fall back to git svn
>> rebase, etc. when necessary I would love to make it the default method for
>> all WebKit get users.
>>
>> Thoughts?
>>
>> -eric
>>
>> _______________________________________________
>> webkit-dev mailing list
>> webkit-dev at lists.webkit.org
>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
>>
>>
>
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