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#!/usr/bin/env bash
if [[ $(id -u) -eq 0 ]]; then
# Drop privileges by re-running this script.
# Note: this mangles arguments, better to avoid running scripts as root.
exec su worker -c "$0 $*"
fi
set -e
# Apply clang-format on the provided folder and verify that this doesn't change any file.
# If any file differs after formatting, the script eventually exits with 1.
# Any differences between formatted and unformatted files is printed to stdout to give a hint what's wrong.
# Includes a default set of directories NOT to clang-format on.
blocklist=(
"./automation" \
"./coreconf" \
"./doc" \
"./pkg" \
"./tests" \
"./lib/libpkix" \
"./lib/zlib" \
"./lib/sqlite" \
"./gtests/google_test" \
"./out" \
)
top=$(cd "$(dirname $0)/../.."; pwd -P)
if [ $# -gt 0 ]; then
dirs=("$@")
else
cd "$top"
dirs=($(find . -maxdepth 2 -mindepth 1 -type d ! -path '*/.*' -print))
fi
format_folder()
{
for block in "${blocklist[@]}"; do
if [[ "$1" == "$block"* ]]; then
echo "skip $1"
return 1
fi
done
return 0
}
for dir in "${dirs[@]}"; do
if format_folder "$dir"; then
c="${dir//[^\/]}"
echo "formatting $dir ..."
depth=()
if [ "${#c}" == "1" ]; then
depth+=(-maxdepth 1)
fi
find "$dir" "${depth[@]}" -type f \( -name '*.[ch]' -o -name '*.cc' \) -exec clang-format -sort-includes=false -i {} \+
fi
done
TMPFILE=$(mktemp /tmp/$(basename $0).XXXXXX)
trap 'rm -f $TMPFILE' exit
if [[ -d "$top/.hg" ]]; then
hg diff --git "$top" | tee $TMPFILE
else
git -C "$top" diff | tee $TMPFILE
fi
[[ ! -s $TMPFILE ]]
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