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#!/bin/sh
# INTEL CONFIDENTIAL
# Copyright 2013 Intel
# Corporation All Rights Reserved.
#
# The source code contained or described herein and all documents related to
# the source code ("Material") are owned by Intel Corporation or its suppliers
# or licensors. Title to the Material remains with Intel Corporation or its
# suppliers and licensors. The Material contains trade secrets and proprietary
# and confidential information of Intel or its suppliers and licensors. The
# Material is protected by worldwide copyright and trade secret laws and
# treaty provisions. No part of the Material may be used, copied, reproduced,
# modified, published, uploaded, posted, transmitted, distributed, or
# disclosed in any way without Intels prior express written permission.
#
# No license under any patent, copyright, trade secret or other intellectual
# property right is granted to or conferred upon you by disclosure or delivery
# of the Materials, either expressly, by implication, inducement, estoppel or
# otherwise. Any license under such intellectual property rights must be
# express and approved by Intel in writing.
# This script reads an asound.conf file and produce for each alsa mixeur
# it's differend values and pcm
#
# ouput example :
#
# my_alsa_mixeur
# true
# a_pcm
# an_other_pcm
# false
# in_this_pcm_my_alsa_mixer_takes_the_value_false
# ...
set -eu
if test $# = 0
then
file="-"
else
file="$1"
fi
space=" "
previous_command=""
sed -nr -e 's#^pcm.(.*)\{.*$#\1#; t save;
b next;
:save;h;b' \
\
-e ':next; s/.*name "(.*)" value ([^}]*).*/\1 = \2 # /; t pcm;
b;
:pcm; G;s/\n//p;' -- "$file" |
sort | \
while read line
do
current_command="$( echo "$line" | sed 's/ =.*#.*//' )"
#values are case insensitive
current_value="$( echo "$line" | sed 's/.*= \(.*\) #.*/\1/' | tr [:upper:] [:lower:] )"
current_mode="$( echo "$line" | sed 's/.*# //' )"
if test "$previous_command" != "$current_command"
then
echo "$current_command"
previous_command="$current_command"
previous_value=""
fi
if test "$previous_value" != "$current_value"
then
echo "$space$current_value"
previous_value="$current_value"
fi
echo "$space$space$current_mode"
done
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