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refactorsaurusrex/prepare-commit-msg.sh

Last active December 23, 2019 14:58
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git 'prepare commit msg' hook that rejects merge commits when the source branch is behind the target branch
Raw
prepare-commit-msg.sh
#!/bin/sh
if [ "$2" = "merge" ]; then
githead=$(env | grep GITHEAD)
source="${githead##*=}"
target=$(git symbolic-ref HEAD)
behind=$(git rev-list --left-only --count $target...$source)
if [ $behind -gt 0 ]; then
echo "Aborting: The source branch is $behind commits behind the target branch."
exit 1
fi
fi
#ref https://superuser.com/a/926038/51794
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