1#!/bin/sh
2#
3# Copyright 2001 Google Inc. All Rights Reserved.
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#     http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17# This quick script converts a text file into an #include-able header.
18# It expects the name of the variable as its first argument, and reads
19# stdin and writes stdout.
20
21varname="$1"
22
23# 'od' and 'sed' may not be available on all platforms, and may not support the
24# flags used here. We must ensure that the script exits with a non-zero exit
25# code in those cases.
26byte_vals=$(od -t x1 -A n -v) || exit 1
27escaped_byte_vals=$(echo "${byte_vals}" \
28  | sed -e 's|^[\t ]\{0,\}$||g; s|[\t ]\{1,\}| |g; s| \{1,\}$||g; s| |\\x|g; s|^|"|; s|$|"|') \
29  || exit 1
30
31# Only write output once we have successfully generated the required data
32printf "const char %s[] = \n%s;" "${varname}" "${escaped_byte_vals}"
33