On Mon, Apr 29, 2013 at 07:34:27PM +0200, Steffen Jaeckel wrote:
> lately I used git-subtree to integrate a submodule directly into a
> repository. Now I wanted to push the changes back to the original
> repository of the submodule and I was a bit surprised by what
> happened...
>
>
> ---- snip ----
> sjaeckel@T7400-003 /h/projects/my_project (develop)
> $ GIT_TRACE=2 git subtree push --prefix=lib/com_lib/ git@git.local:com_lib develop -b develop
> trace: exec: 'git-subtree' 'push' '--prefix=lib/com_lib/' 'git@git.local:com_lib' 'develop' '-b' 'develop'
> trace: run_command: 'git-subtree' 'push' '--prefix=lib/com_lib/' 'git@git.local:com_lib' 'develop' '-b' 'develop'
> trace: built-in: git 'rev-parse' '--parseopt' '--' 'push' '--prefix=lib/com_lib/' 'git@git.local:com_lib' 'develop' '-b' 'develop'
> trace: built-in: git 'rev-parse' '--git-dir'
> trace: built-in: git 'rev-parse' '--show-cdup'
> git push using: git@git.local:com_lib develop
> trace: exec: 'git-subtree' 'split' '--prefix=lib/com_lib/'
> trace: run_command: 'git-subtree' 'split' '--prefix=lib/com_lib/'
> trace: built-in: git 'rev-parse' '--parseopt' '--' 'split' '--prefix=lib/com_lib/'
> trace: built-in: git 'rev-parse' '--git-dir'
> trace: built-in: git 'rev-parse' '--show-cdup'
> trace: built-in: git 'rev-parse' '--default' 'HEAD' '--revs-only'
> trace: built-in: git 'rev-parse' '--no-revs' '--no-flags'
> trace: built-in: git 'log' '--grep=^git-subtree-dir: lib/com_lib/*$' '--pretty=format:START %H%n%s%n%n%b%nEND%n' '8068a810709f6284b04a18ff38dbb72c36b8d9c6'
> trace: built-in: git 'rev-list' '--topo-order' '--reverse' '--parents' '8068a810709f6284b04a18ff38dbb72c36b8d9c6'
> trace: built-in: git 'rev-list' '--topo-order' '--reverse' '--parents' '8068a810709f6284b04a18ff38dbb72c36b8d9c6'
> 1/ 102 (0)trace: built-in: git 'ls-tree' 'f6e1457d345029cf4d376ff3cf780cbb8c3080b4' '--' 'lib/com_lib'
> ..... loads of more git 'ls-tree'...
> 71/ 102 (70)72/ 102 (70)trace: built-in: git 'ls-tree' '48dc0efb9a148b1146b013554f8bf4635adf7a0d' '--' 'lib/com_lib'
> trace: built-in: git 'log' '-1' '--pretty=format:%T' '6299b48765e11302aca48cc9fca88735aeab7c54' '--'
> fatal: bad object 6299b48765e11302aca48cc9fca88735aeab7c54
Without knowing much about git-subtree, this looks like the culprit. A
quick look at cmd_push in git-subtree.sh indicates that it doesn't check
for an error return from 'git subtree split --prefix=$prefix', so if
that goes wrong you end up doing:
git push $repository :refs/heads/$refspec
which deletes the branch.
Can you try running this:
git subtree split --prefix=lib/com_lib/
and see if that gives the same "fatal: bad object" message as above?
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