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#!/usr/bin/env bash
# Print a version string for the currently-checked-out code.
# Copyright (C) 2023 Selene ToyKeeper
# SPDX-License-Identifier: GPL-3.0-or-later
# Usage: version-string.sh [c|git|both]
# Prints in C or Git format. Defaults to both.
function main {
# eat first arg if invoked via 'make'
[[ "version" = "$1" ]] && shift
# default to showing both formats
ARGS="$*"
[[ -z "$ARGS" ]] && ARGS="both"
for arg in $ARGS ; do
case "$arg" in
git|g)
git-describe
;;
c|C)
c-version-string
;;
*)
echo -n 'C: ' ; c-version-string
echo -n 'git: ' ; git-describe
;;
esac
done
}
function git-describe {
git describe --tags --dirty --match='r2*'
}
function c-version-string {
# version = git tag + revs since + dirty flag
REV=$(git-describe)
# convert "r2020-01-01-158-g0abcdef-dirty" to "2020-01-01+158#1"
REV=$(echo "$REV" |
sed -E 's/^r//;
s/-dirty/#1/;
s/-g[0-9a-f]+//;
s/^([0-9]{4}-[0-9]{2}-[0-9]{2})-/\1+/;
'
)
# handle an empty name (can happen during github action runs)
if [[ -z "$REV" ]]; then
HASH=$(git describe --always)
REV="0.$HASH"
fi
# print the version string
echo "$REV"
}
main "$@"
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