threads / discuss / 22456

migrating to git: keep subversion revision numbers (as tags?)

Subject: migrating to git: keep subversion revision numbers (as tags?)

## tl;dr

4 messages between Jan 30, 2010 and Jan 31, 2010.

replies: 3people: 4as markdown or json

fkater@googlemail.com· Jan 30, 2010, 23:08 UTC · lore

Hi,

I would like to completely migrate from subversion to git (and NOT have subversion enabled anymore). However, I need to be able to lookup the old subversion revision numbers later from the git repository. The default seems to be though, that they are replaced by git sha-1 keys.

It would be completely o.k. here to use git tags for all those subversion revision numbers (if possible), so, to create a tag for each subversion revision. However, I have neither seen any option in git nor found a script which does that upon cloning (converting) a subversion repo into a git repo.

Is there a way to do so?

Thank You
 Felix

Jon Seymour· Jan 30, 2010, 23:35 UTC · re: fkater@googlemail.com · lore

Re: migrating to git: keep subversion revision numbers (as tags?)

On Sun, Jan 31, 2010 at 10:08 AM, fkater@googlemail.com <fkater@googlemail.com> wrote:

Show 17 quoted lines

> Hi,
>
> I would like to completely migrate from subversion to git
> (and NOT have subversion enabled anymore). However, I need
> to be able to lookup the old subversion revision numbers
> later from the git repository. The default seems to be
> though, that they are replaced by git sha-1 keys.
>
> It would be completely o.k. here to use git tags for all
> those subversion revision numbers (if possible), so, to
> create a tag for each subversion revision. However, I have
> neither seen any option in git nor found a script which does
> that upon cloning (converting) a subversion repo into a git
> repo.
>
> Is there a way to do so?
>

As I understand it, git-svn stores the SVN revision number in the git commit message and git-svn log allows queries based on the SVN revision number. I think you will find having one tag for each SVN revision number is an abuse of the git tag facility - it makes it much harder to use for its intended function in git.

jon.

Jacob Helwig· Jan 30, 2010, 23:36 UTC · re: fkater@googlemail.com · lore

Re: migrating to git: keep subversion revision numbers (as tags?)

On Sat, Jan 30, 2010 at 15:08, fkater@googlemail.com <fkater@googlemail.com> wrote:

Show 20 quoted lines

> Hi,
>
> I would like to completely migrate from subversion to git
> (and NOT have subversion enabled anymore). However, I need
> to be able to lookup the old subversion revision numbers
> later from the git repository. The default seems to be
> though, that they are replaced by git sha-1 keys.
>
> It would be completely o.k. here to use git tags for all
> those subversion revision numbers (if possible), so, to
> create a tag for each subversion revision. However, I have
> neither seen any option in git nor found a script which does
> that upon cloning (converting) a subversion repo into a git
> repo.
>
> Is there a way to do so?
>
> Thank You
>  Felix
>

There's not really any need to tag every revision with the SVN revision number. If you use svn-all-fast-export, or git-svn to do the SVN -> Git conversion, then the SVN revision numbers will end up as part of the commit message when it is in Git.

-Jacob

Ilari Liusvaara· Jan 31, 2010, 08:04 UTC · re: fkater@googlemail.com · lore

Re: migrating to git: keep subversion revision numbers (as tags?)

On Sun, Jan 31, 2010 at 12:08:29AM +0100, fkater@googlemail.com wrote:

Show 16 quoted lines

> Hi,
> 
> I would like to completely migrate from subversion to git
> (and NOT have subversion enabled anymore). However, I need
> to be able to lookup the old subversion revision numbers
> later from the git repository. The default seems to be
> though, that they are replaced by git sha-1 keys.
> 
> It would be completely o.k. here to use git tags for all
> those subversion revision numbers (if possible), so, to
> create a tag for each subversion revision. However, I have
> neither seen any option in git nor found a script which does
> that upon cloning (converting) a subversion repo into a git
> repo.
> 
> Is there a way to do so?

Another way would be to have SVN version numbers in commit message (--grep option works fine, if those version numbers have fixed format).

The version numbers git-svn outputs are ugly, but filter-branch can be pretty easily rewrite those into more pretty form, something like

"This was SVN r123" or "SVN-version: r123".

(adjust to taste)

-Ilari