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executable file 40 lines (34 sloc) 0.893 kb
#!/bin/sh
# --- Command line
refname="$1"
oldrev="$2"
newrev="$3"
# --- Safety check
if [ -z "$GIT_DIR" ]; then
echo "Don't run this script from the command line." >&2
echo " (if you want, you could supply GIT_DIR then run" >&2
echo " $0 <ref> <oldrev> <newrev>)" >&2
exit 1
fi
if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
exit 1
fi
# Don't allow merge commits on master
if [ "$refname" = "refs/heads/master" ]
then
for rev in $(git rev-list $newrev --not $oldrev)
do
echo -n "Checking: $rev"
if git rev-parse --verify --quiet $rev^2 > /dev/null
then
echo " (merge!)"
echo
echo "Merges not allowed on master. Rebase your changes instead."
echo
exit 1
else
echo " (ok)"
fi
done
fi
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