Re: How do I delete a git submodule?

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Peter Krefting venit, vidit, dixit 24.11.2008 15:44:
> Hi!
> 
> I am trying to remove a submodule from a project, but can't figure out
> how to do it. With "modules/aldc" as a submodule:
> 
>   $ cat .gitmodules
>   [submodule "modules/aldc"]
>           path = modules/aldc
>           url = [...cut...]
>   [...more entries here...]
>   $ git status
>   [...cut...]
>   nothing to commit (working directory clean)
> 
> Starting from a clean set-up.
> 
>   $ git submodule rm modules/aldc
>   -ff17d9e0e76d01e99d26aa16b28cf327c5abb48a modules/aldc
>   $ git status
>   [...cut...]
>   nothing to commit (working directory clean)
> 
> The obvious command didn't give any errors, but didn't do anything,
> either. (I notice that there is no mention of a "git submodule rm" on
> the git-submodule man page.)
> 
>   $ git rm modules/aldc
>   rm 'modules/aldc'
>   fatal: git rm: modules/aldc: Permission denied
>   $ git status
>   [...cut...]
>   nothing to commit (working directory clean)
> 
> Nope, that didn't work either.
> 
> What am I missing?

The last line of git help/man on git submodule status:

"This command is the default command for git-submodule."

git submodule ignores the "rm" (because it doesn't know that command)
and does a "status" on modules/aldc.

OTOH, git rm refuses to do its thing, as you noticed. The brute force
method seems to work:

rm -Rf modules/aldc
#remove module from .gitmodules
#remove module from .git/config
git add -u
git commit -m "get thee hence, modules/aldc"

I edited the two config files manually, but this can be scripted.
git log -p shows a perfect diff including removal of the subproject
commit, so I think the result of the above is fine. I think I'll work on
a patch if nobody stops or beats me...

Cheers,
Michael
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