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#!/bin/sh
#
# Run clang-tidy in fix mode and verify fixes, messages or both.
# Usage:
# check_clang_tidy.sh <source-file> <check-name> <temp-file> \
# [optional clang-tidy arguments]
#
# Example:
# // RUN: $(dirname %s)/check_clang_tidy.sh %s llvm-include-order %t -- -isystem $(dirname %s)/Inputs/Headers
# // REQUIRES: shell
INPUT_FILE=$1
CHECK_TO_RUN=$2
TEMPORARY_FILE=$3.cpp
# Feed the rest arguments to clang-tidy.
shift 3
if [ "$#" -eq 0 ] ; then
# Default to -- --std=c++11
set - -- --std=c++11
fi
set -o errexit
if ! grep -q 'CHECK-FIXES\|CHECK-MESSAGES' "${INPUT_FILE}"; then
echo "FAIL: Neither CHECK-FIXES nor CHECK-MESSAGES found in the input"
exit 1
fi
# Remove the contents of the CHECK lines to avoid CHECKs matching on themselves.
# We need to keep the comments to preserve line numbers while avoiding empty
# lines which could potentially trigger formatting-related checks.
sed 's#// *CHECK-[A-Z-]*:.*#//#' "${INPUT_FILE}" > "${TEMPORARY_FILE}"
clang-tidy "${TEMPORARY_FILE}" -fix --checks="-*,${CHECK_TO_RUN}" "$@" \
> "${TEMPORARY_FILE}.msg" 2>&1
if grep -q 'CHECK-FIXES' "${INPUT_FILE}"; then
FileCheck -input-file="${TEMPORARY_FILE}" "${INPUT_FILE}" \
-check-prefix=CHECK-FIXES -strict-whitespace
fi
if grep -q 'CHECK-MESSAGES' "${INPUT_FILE}"; then
FileCheck -input-file="${TEMPORARY_FILE}.msg" "${INPUT_FILE}" \
-check-prefix=CHECK-MESSAGES -implicit-check-not='{{warning|error}}:'
fi
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