From: Junio C Hamano <gitster@pobox.com>
Date: Thu, 27 Jun 2013 17:16:06 GMT
Subject: Re: [BUG] rebase should desambiguate abbreviated hashes before starting
Message-ID: <7vhagjtqy1.fsf@alter.siamese.dyndns.org>
In-Reply-To: <7vppv7trls.fsf@alter.siamese.dyndns.org>

Junio C Hamano <gitster@pobox.com> writes:

> It could be something as simple like this (not tested).
>
>  git-rebase--interactive.sh | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>
> diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
> index f953d8d..6766b44 100644
> --- a/git-rebase--interactive.sh
> +++ b/git-rebase--interactive.sh
> @@ -678,6 +678,23 @@ skip_unnecessary_picks () {
>  	die "Could not skip unnecessary pick commands"
>  }
>  
> +# expand shortened commit object name to the full form
> +expand_todo_commit_names () {
> +	while read -r command rest
> +	do
> +		case "$command" in
> +		'#'*)
> +			;;
> +		*)
> +			sha1=$(git rev-parse --verify --quiet ${rest%% *})
> +			rest="$sha1 ${rest#* }"
> +			;;

In case somebody wants to polish it to a real patch, this part
should at least be:

		case "$command" in
		'#'* | exec)
			# Be careful for oddball commands like 'exec'
			# that do not have a short-SHA-1 at the beginning
			# of $rest.
			;;
		*)
			sha1=$(git rev-parse --verify --quiet ${rest%% *}) &&
			rest="$sha1 ${rest#* }"
			;;