Junio C HamanoBecause ':/substring' extended SHA1 expression cannot take postfix modifiers such as ^{tree} and ^{commit}, we would need to do it in multiple steps. With the patch, you can start a new branch from a randomly-picked commit whose message has the named string in it.
Signed-off-by: Junio C Hamano <gitster@pobox.com> ---
* As we advertize that ":/string" syntax is usable for any command that wnats to take a commit object name in the Release Notes, we might want to put this in 1.5.4 final. It looks simple and safe enough.
Show changes to git-checkout.sh +4 −3
diff --git a/git-checkout.sh b/git-checkout.sh index 5621c69..bd74d70 100755 --- a/git-checkout.sh +++ b/git-checkout.sh @@ -71,7 +71,8 @@ while test $# != 0; do done arg="$1" -if rev=$(git rev-parse --verify "$arg^0" 2>/dev/null) +rev=$(git rev-parse --verify "$arg" 2>/dev/null) +if rev=$(git rev-parse --verify "$rev^0" 2>/dev/null) then [ -z "$rev" ] && die "unknown flag $arg" new_name="$arg" @@ -82,11 +83,11 @@ then fi new="$rev" shift -elif rev=$(git rev-parse --verify "$arg^{tree}" 2>/dev/null) +elif rev=$(git rev-parse --verify "$rev^{tree}" 2>/dev/null) then # checking out selected paths from a tree-ish. new="$rev" - new_name="$arg^{tree}" + new_name="$rev^{tree}" shift fi [ "$1" = "--" ] && shift
