Directory renames without breaking git log.

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From: Kai Blin
Date: Wednesday, September 3, 2008 - 2:38 pm

Hi folks,

in an effort to make Samba development easier, we're trying to merge the=20
Samba3 and Samba4 branches into a single branch. In order to do so, we need=
=20
to rename the "source" directories both Samba 3 and Samba 4 have (we're=20
planning to use source3 and source4).

Unfortunately, the directories are big enough that git log stops to track t=
he=20
renamed files, so e.g. git log ./samba3 does not show the samba3 history. T=
he=20
history is not lost, of course, but it's way less intuitive to get it.

Here's how we merged the two branches:

$ mkdir samba-merged
$ cd samba-merged
$ git init
=2E.. (create COPYING, README and other top-level files, git add them)
$ git commit -m "Initial commit of merged samba"
$ git remote add git://git.samba.org/samba.git samba
$ git remote update
$ cp -a ~/samba3/source source3
$ cp -a ~/samba4/source source4
$ git add source3 source4
$ git write-tree
$ echo "merge branches" | git commit-tree <sha1 git write-tree retured> \
      -p <sha1 of the initial commit> \
      -p <sha1 of the current samba3 head> \
      -p <sha1 of the current samba4 head>
$ git reset --hard <sha1 returned by git commit-tree>
$ git log
=2E.. history is there as expected
$ git log samba3
=2E.. history is just the merge commit
$ git log samba4
=2E.. history is just the merge commit

Is there any way to fix this that doesn't involve changing the history with=
=20
git-filter-branch?

Cheers,
Kai

=2D-=20
Kai Blin
WorldForge developer  http://www.worldforge.org/
Wine developer        http://wiki.winehq.org/KaiBlin
Samba team member     http://www.samba.org/samba/team/
=2D-
Will code for cotton.
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Messages in current thread:
Directory renames without breaking git log., Kai Blin, (Wed Sep 3, 2:38 pm)
Re: Directory renames without breaking git log., Tarmigan, (Wed Sep 3, 5:16 pm)
Re: Directory renames without breaking git log., Kai Blin, (Thu Sep 4, 12:45 pm)
Re: Directory renames without breaking git log., Junio C Hamano, (Thu Sep 4, 12:49 pm)
Re: Directory renames without breaking git log., Jakub Narebski, (Thu Sep 4, 1:41 pm)
Re: Directory renames without breaking git log., Kai Blin, (Thu Sep 4, 1:52 pm)