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#!/bin/bash
#
# determine-version -- report a useful version for releases
#
# Copyright 2008, Aron Griffis <agriffis@n01se.net>
# Copyright 2008, Oracle
# Released under the GNU GPLv2
v="v3.18.1"
lib_major=0
lib_minor=1
lib_patchlevel=1
which git &> /dev/null
if [ $? == 0 -a -d .git ]; then
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
if tag=`git describe --tags 2>/dev/null`; then
v="$tag"
fi
# Are there uncommitted changes?
git update-index --refresh --unmerged > /dev/null
if git diff-index --name-only HEAD | grep -v "^scripts/package" \
| read dummy; then
v="$v"-dirty
fi
fi
fi
echo "/* NOTE: this file is autogenerated by version.sh, do not edit */" > .build-version.h
echo "#ifndef __BUILD_VERSION" >> .build-version.h
echo >> .build-version.h
echo "#define __BUILD_VERSION" >> .build-version.h
echo >> .build-version.h
echo "#define BTRFS_LIB_MAJOR $lib_major" >> .build-version.h
echo "#define BTRFS_LIB_MINOR $lib_minor" >> .build-version.h
echo "#define BTRFS_LIB_PATCHLEVEL $lib_patchlevel" >> .build-version.h
echo >> .build-version.h
echo "#define BTRFS_LIB_VERSION ( BTRFS_LIB_MAJOR * 10000 + \\" >> .build-version.h
echo " BTRFS_LIB_MINOR * 100 + \\" >> .build-version.h
echo " BTRFS_LIB_PATCHLEVEL )" >> .build-version.h
echo >> .build-version.h
echo "#define BTRFS_BUILD_VERSION \"Btrfs $v\"" >> .build-version.h
echo "#endif" >> .build-version.h
diff -q version.h .build-version.h >& /dev/null
if [ $? == 0 ]; then
rm .build-version.h
exit 0
fi
mv .build-version.h version.h
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