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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="v0.20-rc1"
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
which hg &> /dev/null
if [ $? == 0 -a -d .hg ]; then
last=$(hg tags | grep -m1 -o '^v[0-9.]\+')
# now check if the repo has commits since then...
if [[ $(hg id -t) == $last || \
$(hg di -r "$last:." | awk '/^diff/{print $NF}' | sort -u) == .hgtags ]]
then
# check if it's dirty
if [[ $(hg id | cut -d' ' -f1) == *+ ]]; then
v=$last+
else
v=$last
fi
else
# includes dirty flag
v=$last+$(hg id -i)
fi
fi
echo "#ifndef __BUILD_VERSION" > .build-version.h
echo "#define __BUILD_VERSION" >> .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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