Subject: Re: [PATCH v5 4/4] commit: Add commit.verbose configuration

From: Caleb Thompson <[email-masked]>
Date: Mon, 16 Jun 2014 14:50:57 -0500

On Fri, Jun 13, 2014 at 10:48:55AM -0700, Junio C Hamano wrote:
> Caleb Thompson <[email-masked]> writes:
>
> > diff --git a/t/t7507-commit-verbose.sh b/t/t7507-commit-verbose.sh
> > index 35a4d06..402d6a1 100755
> > --- a/t/t7507-commit-verbose.sh
> > +++ b/t/t7507-commit-verbose.sh
> > @@ -7,6 +7,10 @@ write_script check-for-diff <<-'EOF'
> >		exec grep '^diff --git' "$1"
> >  EOF
> >
> > +write_script check-for-no-diff <<-'EOF'
> > +	exec grep -v '^diff --git' "$1"
> > +EOF
>
> This lets grep show all lines that are not "diff --git" in the
> input, and as usual grep exits success if it has any line in the
> output.
>
>     $ grep -v '^diff --git' <<\EOF ; echo $?
>     diff --git
>     a
>     EOF
>     a
>     0
>     $ exit
>
> What are we testing, exactly?

Good catch. It worked when I switched check-for-diff from
check-for-no-diff, but I didn't try to make check-for-no-diff fail
independently, so I apologize.

This version removes the the beginning of a line starting with
"diff --git" from the string, then checks that the result and the
original string are not the same. Switching the != logic to = makes the
tests using check-for-no-diff fail.

	write_script check-for-no-diff <<-'EOF'
		exec test "${1#*^diff --git} != $1
	EOF

Another option is to replace the parameter substitution with a call to
grep:

	write_script check-for-no-diff <<-'EOF'
		exec test "`grep -v '^diff --git' \"$1\"` != "$1
	EOF

I think that the former reads nicer, and requires less escaping, but I'm
open to feedback.

> > @@ -48,6 +52,38 @@ test_expect_success 'verbose diff is stripped out (mnemonicprefix)' '
> >		check_message message
> >  '
> >
> > +test_expect_success 'commit shows verbose diff with commit.verbose true' '
> > +	echo morecontent >>file &&
> > +	git add file &&
> > +	test_config commit.verbose true &&
> > +	test_set_editor "$PWD/check-for-diff" &&
> > +	git commit --amend
> > +'
> > +
> > +test_expect_success 'commit --verbose overrides commit.verbose false' '
> > +	echo evenmorecontent >>file &&
> > +	git add file &&
> > +	test_config commit.verbose false  &&
> > +	test_set_editor "$PWD/check-for-diff" &&
> > +	git commit --amend --verbose
> > +'
> > +
> > +test_expect_success 'commit does not show verbose diff with commit.verbose false' '
> > +	echo evenmorecontent >>file &&
> > +	git add file &&
> > +	test_config commit.verbose false &&
> > +	test_set_editor "$PWD/check-for-no-diff" &&
> > +	git commit --amend
> > +'
> > +
> > +test_expect_success 'commit --no-verbose overrides commit.verbose true' '
> > +	echo evenmorecontent >>file &&
> > +	git add file &&
> > +	test_config commit.verbose true &&
> > +	test_set_editor "$PWD/check-for-no-diff" &&
> > +	git commit --amend --no-verbose
> > +'
> > +
> >  cat >diff <<'EOF'
> >  This is an example commit message that contains a diff.
> >
> > --
> > 2.0.0

Caleb Thompson