Re: [PATCH v13 7/8] history: create squashed commits without editing

[Junio C Hamano <gitster@pobox.com>]

"Harald Nordgren via GitGitGadget" <gitgitgadget@gmail.com> writes:

> +test_expect_success '--no-edit uses last "amend!" message without an editor' '
> +	git reset --hard three &&
> +	write_script editor <<-\EOF &&
> +	exit 1
> +	EOF
> +	test_set_editor "$(pwd)/editor" &&
> +	echo fix >file &&
> +	git commit --author="Fix Me <fix.me@example.com>" --fixup=HEAD -a &&
> +	git commit --allow-empty -F - <<-EOF &&
> +	amend! $(git rev-parse --short HEAD)
> +
> +	The first reword
> +
> +	More detail
> +	EOF
> +
> +	git commit --allow-empty -F - <<-\EOF &&
> +	amend! three
> +
> +	The second reword
> +
> +	Extra detail
> +	EOF
> +
> +	test_commit WIP &&
> +
> +	cat >msg <<-EOF &&
> +	amend! $(git rev-parse HEAD^ | tr a-f A-F)
> +
> +	The third reword
> +
> +	Excruciating detail
> +	EOF

Care to explain why you need to (1) eat the exit status of the 'git
rev-parse' command and (2) munge the commit object name by piping it
into "tr"?

When another in-flight topic is in effect, this test will break due
to "amend!" followed by a string that is *not* an object name, as
the other topic declares that uppercase letters are not valid in a
hexadecimal string.

Thanks.