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#!/usr/bin/env bash
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit lastpipe
if ! command -v git-clang-format &> /dev/null; then
echo 'Please make sure git-clang-format is available.' >&2
exit 1
fi
output="$( git clang-format --style file --diff )" || true
ok1='no modified files to format'
ok2='clang-format did not modify any files'
if [ "$output" != "$ok1" ] && [ "$output" != "$ok2" ]; then
echo "$output"
echo
echo 'clang-format required some formatting fixes.'
echo 'Please stage your changes, run `git clang-format`, review the formatting fixes, and commit.'
exit 1
fi
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