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Re: [PATCH] filter-branch fix and tests

From
Johannes Sixt <j.sixt@viscovery.net>
Date
Jan 27, 2010, 16:18 UTC
Message-ID
<4B606748.2050209@viscovery.net>
In-Reply-To
<201001271649.19287.sojkam1@fel.cvut.cz>
Michal Sojka schrieb:
> +orig_head=`git show-ref --hash HEAD`
> +export orig_head

You place the tree filter in double-quotes. Hence, orig_head will be interpolated on the filter-branch command line. You don't need to export it.

Show 8 quoted lines
> +test_expect_success 'rewrite submodule with another content' '
> +	git filter-branch --tree-filter "test -d submod && {
> +					 rm -rf submod &&
> +					 git rm -rf --quiet submod &&
> +					 mkdir submod &&
> +					 : > submod/file
> +					 } || : &&
> +					 test $orig_head != `git show-ref --hash HEAD`"
What is the purpose of the check in the last line?

As long as you have another command after the "} || : &&", you can just write "}" instead.

Show 6 quoted lines
> +test_expect_failure 'checkout submodule during rewrite' '
> +	git reset --hard original &&
> +	git filter-branch -f --tree-filter \
> +	    "git submodule update --init &&
> +	     cd submod &&
> +	     git reset --hard origin/master" HEAD
You must not change the directory without changing back. Use a sub-shell.

I'm not sure whether it's worth catering for this use-case anyway. Replacing a submodule commit should really be done only in the --index-filter. The tree that --tree-filter checks out is intended only as a temporary scratch area. It is not intended as a full worktree. In particular, since 'submodule update --init' changes the configuration, it is extremly dangerous to call from a filter.

-- Hannes
Previous: Michal SojkaNext: Michal Sojka
Message 5 of 15 in “filter-branch fix and tests”
  1. Michal SojkaJan 25, 2010
  2. 1/2 filter-branch: Fix to allow replacing submodules with another contentMichal Sojka, Jan 25, 2010
  3. 2/2 filter-branch: Add tests for submodulesMichal Sojka, Jan 25, 2010
  4. Michal SojkaJan 27, 2010
  5. Johannes SixtJan 27, 2010
  6. Michal SojkaJan 27, 2010
  7. [PATCHv3] filter-branch: Add tests for submodulesMichal Sojka, Jan 27, 2010
  8. Junio C HamanoJan 28, 2010
  9. Michal SojkaJan 28, 2010
  10. 1/2 filter-branch: Fix to allow replacing submodules with another contentMichal Sojka, Jan 28, 2010
  11. 2/2 filter-branch: Add tests for submodules in tree-filterMichal Sojka, Jan 28, 2010
  12. Junio C HamanoJan 28, 2010
  13. Michal SojkaJan 29, 2010
  14. 1/2 filter-branch: Fix to allow replacing submodules with another contentMichal Sojka, Jan 29, 2010
  15. 2/2 filter-branch: Add tests for submodules in tree-filterMichal Sojka, Jan 29, 2010

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