mirror of
https://github.com/golang/go
synced 2024-11-25 19:17:57 -07:00
51 lines
1.2 KiB
Bash
Executable File
51 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2010 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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GOROOT=$(dirname $0)/..
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# If a version file created by -save is available, use it
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if [ -f "$GOROOT/VERSION" -a "$1" != "-save" ]; then
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cat $GOROOT/VERSION
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exit 0
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fi
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# Otherwise, if hg doesn't work for whatever reason, fail
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if [ ! -d "$GOROOT/.hg" ] || ! hg version > /dev/null 2>&1; then
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echo 'Unable to report version: hg and VERSION file missing' 1>&2
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echo 'Generate VERSION with `src/version.bash -save` while hg is usable' 1>&2
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exit 2
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fi
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# Get numerical revision
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VERSION=$(hg identify -n 2>/dev/null)
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if [ $? != 0 ]; then
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OLD=$(hg identify | sed 1q)
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VERSION=$(echo $OLD | awk '{print $1}')
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fi
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# Get branch type
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BRANCH=release
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if [ "$(hg identify -b 2>/dev/null)" == "default" ]; then
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BRANCH=weekly
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fi
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# Find most recent known release or weekly tag.
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TAG=$(hg tags |
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grep $BRANCH |
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sed 's/:.*//' |
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sort -rn -k2 |
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awk -v ver=$VERSION '$2 <= ver && $1~/^(release|weekly)\./ {print $1}' |
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sed -n 1p)
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if [ "$TAG" != "" ]; then
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VERSION="$TAG $VERSION"
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fi
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if [ "$1" = "-save" ]; then
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echo $VERSION > $GOROOT/VERSION
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else
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echo $VERSION
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fi
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