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#!/bin/sh
submods=$(git diff-index --cached --ignore-submodules=dirty HEAD | grep -e '^:160000' -e '^:...... 160000' | xargs)
if test "$submods"; then
echo "You are trying to commit changes to the following submodules:" 1>&2
echo 1>&2
echo $submods | cut -d ' ' -f 6 | sed 's/^/ /g' 1>&2
cat <<EOF 1>&2
Submodule commits are not allowed. Please run:
git status --ignore-submodules=dirty
and/or:
git diff-index --cached --ignore-submodules=dirty HEAD
... to see what's in your index.
If you're really and truly trying to roll the version of a submodule, you should
commit the new version to DEPS, instead.
EOF
exit 1
fi
if test "$(git diff-index --cached HEAD .gitmodules)"; then
cat <<EOF 1>&2
You are trying to commit a change to .gitmodules. That is not allowed.
To make changes to submodule names/paths, edit DEPS.
EOF
exit 1
fi
exit 0
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