backend/git-hooks/pre-commit.sh

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#!/bin/sh
set -e
echo "Java formatter running..."
format_cmd="$(dirname $(realpath "$0"))/format.sh"
# skip if NO_VERIFY env var set
if [ "$NO_VERIFY" ]; then
echo 'google-java-format skipped' 1>&2
exit 0
fi
# list all added/copied/modified/renamed java files
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files="$(git diff --staged --name-only --diff-filter=ACMR | egrep -a '.java$' | tr '\n' ' ')"
for f in $files; do
# run google-java-format on each file and re-stage any new changes
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$format_cmd --aosp -i "$f"
git add -f "$f"
done