git-child

#!/bin/bash

# Find the child of the current (or supplied) commit.

REV=$1

if [ x$REV == x ]; then
    REV="HEAD"
fi

HASH=$(git-rev-parse $REV)

NUM=$2

if [ x$NUM == x ]; then
    NUM=1
fi

git rev-list --all --parents | grep " $HASH" | sed -n "${NUM}s/\([^ ]*\) .*$/\\1/p"