On Wednesday 27 of January 2010 17:18:16 Johannes Sixt wrote:
> 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.
You're right. Fixed.
> > +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?
It should check that something was rewritten, but it was incorrectly put into
the filed. Fixed.
> As long as you have another command after the "} || : &&", you can just
> write "}" instead.
OK.
> > +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.
I fully agree. I don't plan to put this test in the final version of the
patch. I wrote this test because I didn't exactly know which issue has Dscho
in mind. If it was this one, I wanted to show that this is not relevant.
I'm sending corrected version of the patch with tests.
Thanks
Michal
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