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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package version
import (
"fmt"
"runtime"
"strings"
"sync"
)
var stringLazy = sync.OnceValue(func() string {
var ret strings.Builder
ret.WriteString(Short())
ret.WriteByte('\n')
if IsUnstableBuild() {
fmt.Fprintf(&ret, " track: unstable (dev); frequent updates and bugs are likely\n")
}
if gitCommit() != "" {
fmt.Fprintf(&ret, " tailscale commit: %s%s\n", gitCommit(), dirtyString())
}
fmt.Fprintf(&ret, " long version: %s\n", Long())
if extraGitCommitStamp != "" {
fmt.Fprintf(&ret, " other commit: %s\n", extraGitCommitStamp)
}
if tsGoRev := tailscaleToolchainRev(); tsGoRev != "" {
if len(tsGoRev) > 10 {
tsGoRev = tsGoRev[:10]
}
fmt.Fprintf(&ret, " go version: %s (tailscale/go %s)\n", runtime.Version(), tsGoRev)
} else {
fmt.Fprintf(&ret, " go version: %s\n", runtime.Version())
}
return strings.TrimSpace(ret.String())
})
func String() string {
return stringLazy()
}
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