#!/bin/bash
# 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.
usage() {
cat <<EOF
flatten_html.sh: This script "flattens" an HTML file by inlining all
files included via "#include virtual". This is useful when making
changes to the Kafka documentation files.
Typical usage:
./gradlew docsJar
./tests/bin/flatten_html.sh -f ./docs/protocol.html > /tmp/my-protocol.html
firefox /tmp/my-protocol.html &
usage:
$0 [flags]
flags:
-f [filename] The HTML file to process.
-h Print this help message.
EOF
}
die() {
echo $@
exit 1
}
realpath() {
[[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}
process_file() {
local CUR_FILE="${1}"
[[ -f "${CUR_FILE}" ]] || die "Unable to open input file ${CUR_FILE}"
while IFS= read -r LINE; do
if [[ $LINE =~ \#include\ virtual=\"(.*)\" ]]; then
local INCLUDED_FILE="${BASH_REMATCH[1]}"
if [[ $INCLUDED_FILE =~ ../includes/ ]]; then
: # ignore ../includes
else
pushd "$(dirname "${CUR_FILE}")" &> /dev/null \
|| die "failed to change directory to directory of ${CUR_FILE}"
process_file "${INCLUDED_FILE}"
popd &> /dev/null
fi
else
echo "${LINE}"
fi
done < "${CUR_FILE}"
}
FILE=""
while getopts "f:h" arg; do
case $arg in
f) FILE=$OPTARG;;
h) usage; exit 0;;
*) echo "Error parsing command-line arguments."
usage
exit 1;;
esac
done
[[ -z "${FILE}" ]] && die "You must specify which file to process. -h for help."
process_file "${FILE}"