Tools/clangd/clangd-check-file

#!/usr/bin/env bash
if [ $# -ne 1 ]; then
    echo "Usage: clangd-check-file <file>"
    echo
    echo "Checks if a file reports errors under clangd, and prints PASS or FAIL accordingly."
    echo "This is a small wrapper around clangd --check."
    echo "Intended to be used by clangd-check-codebase."
    echo "Note: This script currently only supports Linux."
    exit 1
fi

webkit_root="$(dirname "$0")/../../"
file_to_check=$1

# Hack to disable diagnostics that can still be useful for developers editing the files but would
# be over-zealous or provide false-positives when analyzing the entire codebase.
config_tmp_dir=$(mktemp -d --suffix .clangd-config)
mkdir "$config_tmp_dir/clangd"
echo """
CompileFlags:
    Add: [-Wno-unknown-pragmas, -Wno-unused-function, -Wno-unused-variable, -Wno-unused-const-variable]
---
$(cat "$webkit_root/.clangd")
""" > "$config_tmp_dir/clangd/config.yaml"

output=$(XDG_CONFIG_HOME="$config_tmp_dir" clangd --enable-config --query-driver='**' --check-locations=false --check="$file_to_check" 2>&1)
ret_code=$?
if [[ $ret_code -ne 0 ]]; then
    echo "$output" >&2
    prefix="FAIL: "
else
    prefix="PASS: "
fi
echo "$prefix$file_to_check"

rm -rf "$config_tmp_dir"