mirror of
https://github.com/tailscale/tailscale.git
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69b90742fe
sync.OnceValue and slices.Compact were both added in Go 1.21. cmp.Or was added in Go 1.22. Updates #8632 Updates #11058 Change-Id: I89ba4c404f40188e1f8a9566c8aaa049be377754 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
33 lines
738 B
Go
33 lines
738 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package version
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import (
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"fmt"
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"runtime"
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"strings"
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"sync"
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)
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var stringLazy = sync.OnceValue(func() string {
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var ret strings.Builder
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ret.WriteString(Short())
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ret.WriteByte('\n')
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if IsUnstableBuild() {
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fmt.Fprintf(&ret, " track: unstable (dev); frequent updates and bugs are likely\n")
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}
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if gitCommit() != "" {
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fmt.Fprintf(&ret, " tailscale commit: %s%s\n", gitCommit(), dirtyString())
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}
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if extraGitCommitStamp != "" {
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fmt.Fprintf(&ret, " other commit: %s\n", extraGitCommitStamp)
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}
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fmt.Fprintf(&ret, " go version: %s\n", runtime.Version())
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return strings.TrimSpace(ret.String())
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})
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func String() string {
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return stringLazy()
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}
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