git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: What I want rebase to do

From
Johannes Sixt <j.sixt@viscovery.net>
Date
Mar 7, 2013, 10:08 UTC
Message-ID
<51386732.1020708@viscovery.net>
In-Reply-To
<87r4jra942.fsf@pctrast.inf.ethz.ch>
Am 3/7/2013 9:48, schrieb Thomas Rast:
Show 27 quoted lines
> worley@alum.mit.edu (Dale R. Worley) writes:
> [...snip...]
> 
> Isn't that just a very long-winded way of restating what Junio said
> earlier:
> 
>>> It was suggested to make it apply the first-parent diff and record
>>> the result, I think.  If that were an acceptable approach (I didn't
>>> think about it through myself, though), that would automatically
>>> cover the evil-merge case as well.
> 
> You can fake that with something like
> 
> git rev-list --first-parent --reverse RANGE_TO_REBASE |
> while read rev; do
>     if git rev-parse $rev^2 >/dev/null 2>&1; then
>         git cherry-pick -n -m1 $rev
>         git rev-parse $rev^2 >.git/MERGE_HEAD
>         git commit -C$rev
>     else
>         git cherry-pick $rev
>     fi
> done
> 
> Only tested very lightly.  Dealing with octopii, conflicts and actually
> preserving the commit's attributes is left as an exercise to the
> reader[1].

I proposed this long ago, but by modifying preserve-merges rather than with a new option (--first-parent): http://thread.gmane.org/gmane.comp.version-control.git/198125

It works very well. I'm using it frequently in the field.
-- Hannes
Previous: Thomas RastNext: Junio C Hamano
Message 7 of 13 in “"git rebase" loses the additional changes in "evil" merges”
  1. Dale R. WorleyMar 4, 2013
  2. Junio C HamanoMar 4, 2013
  3. Thomas RastMar 4, 2013
  4. Junio C HamanoMar 4, 2013
  5. What I want rebase to doDale R. Worley, Mar 6, 2013
  6. Thomas RastMar 7, 2013
  7. Johannes SixtMar 7, 2013
  8. Junio C HamanoMar 7, 2013
  9. Dale R. WorleyMar 7, 2013
  10. Dale WorleyMar 5, 2013
  11. Junio C HamanoMar 5, 2013
  12. Philip OakleyMar 5, 2013
  13. Junio C HamanoMar 5, 2013

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.