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Re: Check in to a branch

From: Ryan Schmidt <subversion-2007b_at_ryandesign.com>
Date: 2007-04-25 23:12:37 CEST

On Apr 25, 2007, at 14:49, ying lcs wrote:

> After I did the switch command:
> svn checkout http://svn.example.com/repos/calc/branches/stable-1.0 .
>
> Why it said 'Updated to revision 114.'
>
> When I create the branch 'stable-1.0' it is revision 112 and after
> that I add 2 more revisions to the trunk and I have no commit to the
> branch.
>
> So my branch revision is 112 and the latest revision to the trunk
> is 114.
>
> But when I do 'switch' to the Branch, why it updates to 114? should it
> be 112 instead?

There is no problem. Everything is working correctly. Let me try to
explain.

The first half of the statement "my branch revision is 112 and the
latest revision to the trunk is 114" is not entirely accurate in
Subversion terminology. The correct statement is "the last changed
revision in the branch is 112 and the last changed revision in the
trunk is 114".

In Subversion, the revision number is of the repository as a whole,
not of individual paths in the repository. The act of creating the
stable-1.0 branch created revision 112 of the repository. The act of
committing twice to the trunk created revisions 113 and 114 of the
repository. At this point in time, 114 is the so-called "HEAD"
revision of the repository. Any time you check out any entity from
the trunk without specifying a revision number, you will get the HEAD
revision.

But this is ok. The revision number doesn't really matter. What
matters is the last changed revision. You can use "svn info" to
verify that the last changed revision of your branch is indeed 112.
If you now commit some change in the branch, that will create
revision 115 of the repository.

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Received on Wed Apr 25 23:13:10 2007

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