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https://github.com/tailscale/tailscale.git
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e101d8396d
Build tags have been updated to build native Apple M1 binaries, existing build
tags for ios have been changed from darwin,arm64 to ios,arm64.
With this change, running go build cmd/tailscale{,d}/tailscale{,d}.go on an Apple
machine with the new processor works and resulting binaries show the expected
architecture, e.g. tailscale: Mach-O 64-bit executable arm64.
Tested using go version go1.16beta1 darwin/arm64.
Updates #943
Signed-off-by: moncho <50428+moncho@users.noreply.github.com>
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// Copyright (c) 2020 Tailscale Inc & 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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// +build go1.16,!ios !go1.16,!darwin !go1.16,!arm64
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package version
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import (
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"os"
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"path"
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"path/filepath"
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"strings"
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"rsc.io/goversion/version"
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)
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// CmdName returns either the base name of the current binary
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// using os.Executable. If os.Executable fails (it shouldn't), then
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// "cmd" is returned.
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func CmdName() string {
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e, err := os.Executable()
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if err != nil {
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return "cmd"
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}
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// fallbackName, the lowercase basename of the executable, is what we return if
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// we can't find the Go module metadata embedded in the file.
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fallbackName := filepath.Base(strings.TrimSuffix(strings.ToLower(e), ".exe"))
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var ret string
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v, err := version.ReadExe(e)
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if err != nil {
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return fallbackName
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}
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// v is like:
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// "path\ttailscale.com/cmd/tailscale\nmod\ttailscale.com\t(devel)\t\ndep\tgithub.com/apenwarr/fixconsole\tv0.0.0-20191012055117-5a9f6489cc29\th1:muXWUcay7DDy1/hEQWrYlBy+g0EuwT70sBHg65SeUc4=\ndep\tgithub....
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for _, line := range strings.Split(v.ModuleInfo, "\n") {
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if strings.HasPrefix(line, "path\t") {
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goPkg := strings.TrimPrefix(line, "path\t") // like "tailscale.com/cmd/tailscale"
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ret = path.Base(goPkg) // goPkg is always forward slashes; use path, not filepath
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break
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}
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}
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if ret == "" {
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return fallbackName
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}
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return ret
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}
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