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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
# Generate a version string using git describe
if [ -n "$1" ]
then
cd "$1" 2>/dev/null || exit 1
fi
# Get a short description from the tree.
version=$(git describe --abbrev=8 --match "v[0-9]*" 2>/dev/null)
if [ -z "$version" ]
then
# Handle an un-tagged repository
sha=$(git describe --abbrev=8 --always 2>/dev/null)
commits=$(git log --oneline | wc -l 2>/dev/null)
version=v0.0.$commits.$sha
fi
# Prevent changed timestamps causing -dirty labels
git update-index --refresh > /dev/null 2>&1
dirty=$(git diff-index --name-only HEAD 2>/dev/null) || dirty=
# Strip the 'g', and replace the preceeding '-' with a '+' to denote a label
version=$(echo "$version" | sed -e 's/-g/+/g')
# Fix the '-' (the patch count) to a '.' as a version increment.
version=$(echo "$version" | sed -e 's/-/./g')
if [ -n "$dirty" ]
then
version=$version-dirty
fi
echo "$version"
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