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carlosmcevilly/is-ancestor-hash.sh

Created September 16, 2019 16:45
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Check whether the current branch has <git hash> as an ancestor
Raw
is-ancestor-hash.sh
#!/bin/bash
export hash=$1
if [[ "$hash" == '' ]]; then
echo usage: $0 '<git hash>'
exit -1
fi
if git merge-base --is-ancestor $hash HEAD 2> /dev/null; then
echo $hash is an ancestor of the current branch
else
echo $hash is not an ancestor of the current branch
fi
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