threads / discuss / 25340

Move tags to branch

Subject: Move tags to branch

## tl;dr

4 messages between Oct 4, 2010 and Oct 5, 2010.

replies: 3people: 4as markdown or json

Mathieu Malaterre· Oct 4, 2010, 19:16 UTC · lore

Hi,

  I have been using svn2git to start using git. However svn2git
creates tags from HEAD instead of the branch. Is there a way to move
tags back to the branch ?

I have now:

$ git for-each-ref --format='%(refname)' refs/tags/ | xargs git log
--graph --simplify-by-decoration origin/release origin/master
| * commit 5fd43e4a662b1a7d43d2e10de3dec40c58dcb6a4
|/  Author:
|   Date:   Wed Aug 18 10:23:12 2010 +0000
|
|       ENH: Tagging the  release
|
| * commit 8d16cdc21ea84158eba57d0bc8d9ae96427fd24a
|/  Author:
|   Date:   Mon Jul 12 09:42:49 2010 +0000
|
|       obfuscate niels emails
|

I would like:

| * commit 5fd43e4a662b1a7d43d2e10de3dec40c58dcb6a4
| | Author:
| | Date:   Wed Aug 18 10:23:12 2010 +0000
| |
| |     ENH: Tagging the  release
| |
| * commit 8d16cdc21ea84158eba57d0bc8d9ae96427fd24a
| | Author:
| | Date:   Mon Jul 12 09:42:49 2010 +0000
| |
| |     obfuscate niels emails
| |

Thanks !

-- 
Mathieu

Jonathan Nieder· Oct 4, 2010, 19:21 UTC · re: Mathieu Malaterre · lore

Re: Move tags to branch

Mathieu Malaterre wrote:

Show 27 quoted lines

> | * commit 5fd43e4a662b1a7d43d2e10de3dec40c58dcb6a4
> |/  Author:
> |   Date:   Wed Aug 18 10:23:12 2010 +0000
> |
> |       ENH: Tagging the  release
> |
> | * commit 8d16cdc21ea84158eba57d0bc8d9ae96427fd24a
> |/  Author:
> |   Date:   Mon Jul 12 09:42:49 2010 +0000
> |
> |       obfuscate niels emails
> |
> 
> I would like:
> 
> | * commit 5fd43e4a662b1a7d43d2e10de3dec40c58dcb6a4
> | | Author:
> | | Date:   Wed Aug 18 10:23:12 2010 +0000
> | |
> | |     ENH: Tagging the  release
> | |
> | * commit 8d16cdc21ea84158eba57d0bc8d9ae96427fd24a
> | | Author:
> | | Date:   Mon Jul 12 09:42:49 2010 +0000
> | |
> | |     obfuscate niels emails
> | |

How would that work? Would Niels's emails be obfuscated on the release branch?

Jakub Narebski· Oct 5, 2010, 01:10 UTC · re: Mathieu Malaterre · lore

Re: Move tags to branch

Mathieu Malaterre <mathieu.malaterre@gmail.com> writes:

>   I have been using svn2git to start using git. However svn2git
> creates tags from HEAD instead of the branch. Is there a way to move
> tags back to the branch ?

Isn't it by a chance caused by the fact that Subversion does not "enforce" tags to not change?

-- 
Jakub Narebski
Poland
ShadeHawk on #git

Brad King· Oct 5, 2010, 17:29 UTC · re: Jakub Narebski · lore

Re: Move tags to branch

On 10/04/2010 09:10 PM, Jakub Narebski wrote:

Show 8 quoted lines

> Mathieu Malaterre <mathieu.malaterre@gmail.com> writes:
> 
>>   I have been using svn2git to start using git. However svn2git
>> creates tags from HEAD instead of the branch. Is there a way to move
>> tags back to the branch ?
> 
> Isn't it by a chance caused by the fact that Subversion does not
> "enforce" tags to not change?

I've converted repositories with this problem before. Subversion "tags" are basically branches. I usually manufacture a merge commit to keep the tagged versions alive in history as close to inline as possible. For example, if the conversion result is

                      o----v2
                     /
  ...o----B----o----o----C----D  master
      \
       o----v1

because "tags" v1 and v2 have had a couple of commits, I manually convert it to

                        o----v2
                       /      \
  ...o----B--B'--o----o----C---C'---D  master
      \      /
       o----v1

using git plumbing, grafts, and filter-branch.

B' has B as its first parent, v1 as its second parent, and the same tree object as B. Similarly for C', C, and v2. The commit messages for B' and C' explain that they were manufactured retroactively during conversion.

Commits B and C were selected as the artificial "merge points" by finding the newest commits in a first-parent traversal of master that were not newer than v1 and v2, respectively. The committer times for B' and C' are taken from v1 and v2 (or a time shortly thereafter).

-Brad