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#!/bin/sh
# This script parses the global header and extracts the major.minor.patch version for
# liquid-dsp and prints to the screen. This is a simplified version of:
# https://github.com/tinyalsa/tinyalsa/blob/master/scripts/version.sh
INCLUDE_FILE="include/liquid.h"
# exit program with error
die()
{
echo "error: $@" 1>&2
exit 1
}
# check that file exists
check_files()
{
[ -f ${INCLUDE_FILE} ] || die "No ${INCLUDE_FILE} found!";
}
# get a part of the version from the header, e.g. LIQUID_VERSION_MAJOR
get_version_part()
{
set -- "$1" "$(grep -m 1 "^#define\([ \t]*\)$1" ${INCLUDE_FILE} | sed 's/[^0-9]*//g')"
if [ -z "$2" ]; then
die "Could not get $1 from ${INCLUDE_FILE}"
fi
echo "$2"
}
# gets the complete version from the include file
get_version()
{
VERSION_MAJOR=$(get_version_part "LIQUID_VERSION_MAJOR")
VERSION_MINOR=$(get_version_part "LIQUID_VERSION_MINOR")
VERSION_PATCH=$(get_version_part "LIQUID_VERSION_PATCH")
}
print_version()
{
printf "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}${LF}"
return 0
}
check_files
get_version
print_version "$2"
exit $?
# The script should never reach this place.
die "Internal error. Please report this."
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