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#!/bin/sh
# script to determine git hash of current source tree
# set a variable when running `git --archive <hash/tag>` (this is what github does)
# alternatively, you could also git get-tar-commit-id < tarball (but that's a bit dirtier)
FROM_ARCHIVE=$Format:%H$
# ... but try to use whatever git tells us if there is a .git folder
if [ -d .git -a -r .git ]
then
hash=$(git log 2>/dev/null | head -n1 2>/dev/null | sed "s/.* //" 2>/dev/null)
fi
if [ x"$hash" != x ]
then
echo $hash
elif [ "$FROM_ARCHIVE" != ':%H$' ]
then
echo $FROM_ARCHIVE
else
echo "commit hash detection fail. Dear packager, please figure out what goes wrong or get in touch with us" >&2
echo UNKNOWN
exit 2
fi
exit 0
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