Fix "git checkout -b foo ':/substring'"
Because ':/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>
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 @@
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 @@
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
