incubator-nuttx/tools/process_config.sh

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#!/usr/bin/env bash
# tools/process_config.sh
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
process_file() {
local output_file="$1"
local input_file="$2"
local include_paths=("${!3}")
while IFS= read -r line || [ -n "$line" ]
do
if [[ $line == \#include* ]]; then
local include_file=$(echo $line | sed -E 's/#include [<"](.+)[">]/\1/')
local found=false
# Check current directory first
if [ -f $include_file ]; then
process_file $output_file $include_file include_paths[@]
found=true
else
# Then check in the include paths
for path in "${include_paths[@]}"; do
local full_path="$path/$include_file"
if [ -f $full_path ]; then
process_file $output_file $full_path include_paths[@]
found=true
break
fi
done
fi
# Configuration file not found
if [ "$found" = false ]; then
echo "ERROR: Can't find \"$include_file\" in current directory or search paths."
rm $output_file
exit 1
fi
else
echo "$line" >> $output_file
fi
done < "$input_file"
}
usage() {
echo "Usage: $0 [OPTIONS] [INPUT_FILE]"
echo " -h display this help"
echo " -I include path, can be specified multiple times"
echo " -o output file"
echo " [INPUT_FILE] the file to be processed"
}
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
-I)
INCLUDE_PATHS+=("$2")
shift
shift
;;
-o)
OUTPUT_FILE="$2"
shift
shift
;;
*)
if [ -z "$INPUT_FILE" ]; then
INPUT_FILE="$1"
shift
else
echo "Error: Multiple input files specified"
usage
exit 1
fi
;;
esac
done
if [ -z "$INPUT_FILE" ]; then
echo "Error: Input file not specified"
usage
exit 1
fi
if [ -z "$OUTPUT_FILE" ]; then
echo "Error: Output file not specified"
usage
exit 1
fi
echo "" > $OUTPUT_FILE
process_file "$OUTPUT_FILE" "$INPUT_FILE" INCLUDE_PATHS[@]