abi_version.sh

#!/bin/sh
# Copyright (c) 2013 Luca Barbato
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom
# the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.

if [ ! -f src/nn.h ]; then
    echo "abi_version.sh: error: src/nn.h does not exist" 1>&2
    exit 1
fi

CURRENT=$(egrep '^#define +NN_VERSION_CURRENT +[0-9]+$' src/nn.h)
REVISION=$(egrep '^#define +NN_VERSION_REVISION +[0-9]+$' src/nn.h)
AGE=$(egrep '^#define +NN_VERSION_AGE +[0-9]+$' src/nn.h)

if [ -z "$CURRENT" -o -z "$REVISION" -o -z "$AGE" ]; then
    echo "abi_version.sh: error: could not extract version from src/nn.h" 1>&2
    exit 1
fi

CURRENT=$(printf '%s' "$CURRENT" | awk '{ print $3 }')
REVISION=$(printf '%s' "$REVISION" | awk '{ print $3 }')
AGE=$(printf '%s' "$AGE" | awk '{ print $3 }') 

printf '%s' "$CURRENT.$REVISION.$AGE"