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37 lines
1.0 KiB
37 lines
1.0 KiB
3 months ago
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#!/bin/sh
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# SPDX-FileCopyrightText: (C) 2024 Oswald Buddenhagen <ossi@users.sf.net>
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# SPDX-License-Identifier: GPL-2.0-or-later
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cd $(dirname $0)
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test -e .git || exit
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mb=$(git merge-base HEAD "@{upstream}" 2> /dev/null)
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if test -z "$mb"; then
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# we presume that a failure to find a merge base means no upstream.
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# and no upstream may mean detached head in the middle of a rebase
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br=$(git branch | sed -n -e 's/^\* (no branch, rebasing \([^\)]*\))$/\1/p')
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if test -n "$br"; then
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mb=$(git merge-base HEAD "$br@{upstream}" 2> /dev/null)
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fi
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fi
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if test -z "$mb"; then
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# still no upstream, so just describe HEAD as-is.
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gver=$(git describe --tags HEAD)
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else
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# find out whether we have local work, and if so, collapse it into
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# a single suffix. otherwise, we'd cause pointless rebuilds during
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# development.
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gver=$(git describe --tags $mb)
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lcl=$(git rev-list -n 1 $mb..HEAD)
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if test -n "$lcl"; then
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gver="$gver-plus"
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fi
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fi
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gver=${gver#v}
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pgver=$(cat VERSION 2> /dev/null)
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if [ "x$gver" != "x$pgver" ]; then
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echo "$gver" > VERSION
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fi
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