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go/cmd/getgo/system.go
Brad Fitzpatrick 36c7af3342 all: fix plan9 build
getgo doesn't work on plan9. Skip it entirely.

And skip the massive slow godoc start-up test. Not worth it.

Change-Id: If062b7c4c8c7c5084e607ed22085657054c10ba9
Reviewed-on: https://go-review.googlesource.com/80737
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-11-29 20:22:11 +00:00

39 lines
871 B
Go

// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !plan9
package main
import (
"bytes"
"context"
"os/exec"
"runtime"
"strings"
)
// arch contains either amd64 or 386.
var arch = func() string {
cmd := exec.Command("uname", "-m") // "x86_64"
if runtime.GOOS == "windows" {
cmd = exec.Command("powershell", "-command", "(Get-WmiObject -Class Win32_ComputerSystem).SystemType") // "x64-based PC"
}
out, err := cmd.Output()
if err != nil {
// a sensible default?
return "amd64"
}
if bytes.Contains(out, []byte("64")) {
return "amd64"
}
return "386"
}()
func findGo(ctx context.Context, cmd string) (string, error) {
out, err := exec.CommandContext(ctx, cmd, "go").CombinedOutput()
return strings.TrimSpace(string(out)), err
}