Re: [PATCH v3] commit: restore --edit when combined with --fixup

["Joel Klinghed" <the_jk@spawned.biz>]

On Thu, Aug 12, 2021, at 11:32, Phillip Wood wrote:
> Hi Joel
> 
> @@ -1170,7 +1206,7 @@ static int parse_and_validate_options(int argc, 
> const char *argv[],
>          if (force_author && renew_authorship)
>                  die(_("Using both --reset-author and --author does not 
> make sense"));
> 
> -       if (logfile || have_option_m || use_message || fixup_message)
> +       if (logfile || have_option_m || use_message)
>                  use_editor = 0;
>          if (0 <= edit_flag)
>                  use_editor = edit_flag;
> 
> I think it should have moved those last two context lines that set 
> `use_editor` to below the part that you are fixing. Then the `use_editor 
> = 0` line that you are changing continues to work as before. (As you see 
> there are quite a few legacy Yoda conditions in this file, nowadays we 
> avoid adding new ones). I'm not sure if it is worth re working this 
> patch to do that, but it does have the advantage of only testing 
> edit_flag once.

I looked at moving the condition to one place but as use_editor = 0
is only set for --fixup if there isn't a suboption specified I didn't want
to have to duplicate the check for a suboption when deciding if
use_editor should default to zero.
 
> > diff --git a/t/t7500-commit-template-squash-signoff.sh b/t/t7500-commit-template-squash-signoff.sh
> > index 7d02f79c0de..a48fe859235 100755
> > --- a/t/t7500-commit-template-squash-signoff.sh
> > +++ b/t/t7500-commit-template-squash-signoff.sh
> > @@ -281,6 +281,19 @@ test_expect_success 'commit --fixup -m"something" -m"extra"' '
> >   
> >   extra"
> >   '
> > +test_expect_success 'commit --fixup --edit' '
> > +	commit_for_rebase_autosquash_setup &&
> > +	write_script e-append <<-\EOF &&
> > +	sed -e "2a\\
> > +something\\
> > +extra" <"$1" >"$1-"
> > +	mv "$1-" "$1"
> > +	EOF
> 
> Again I'm not sure it is worth changing it now but for future reference 
> this is a rather complicated way of appending to the commit message. The 
> test file has an example using set_fake_editor() together with 
> FAKE_COMMIT_AMEND just below where you have added this test or you can 
> just have
> 
>      EDITOR="echo something extra >>" git commit --fixup=HEAD~1 --edit
> 
> Best Wishes
> 
> Phillip
> 

Yeah, especially getting sed in a POSIX and BSD compatible mode took some
doing. I wanted to have a similar output to the test above this one, with a line break 
between something and extra, and frankly, my shell-foo lacked for
getting either FAKE_COMMIT_AMEND or EDITOR="... >>" to include a newline.
But looking at it again, I realize that EDITOR="printf \"something\nextra\" >>" 
works just fine.

/JK