mirror of
https://github.com/tailscale/tailscale.git
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101 lines
2.7 KiB
Go
101 lines
2.7 KiB
Go
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// Copyright (c) 2021 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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// Package integration contains Tailscale integration tests.
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//
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// This package is considered internal and the public API is subject
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// to change without notice.
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package integration
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import (
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"runtime"
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"strings"
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"sync"
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"testing"
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"time"
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"tailscale.com/version"
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)
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// Binaries are the paths to a tailscaled and tailscale binary.
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// These can be shared by multiple nodes.
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type Binaries struct {
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Dir string // temp dir for tailscale & tailscaled
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Daemon string // tailscaled
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CLI string // tailscale
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}
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// BuildTestBinaries builds tailscale and tailscaled, failing the test
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// if they fail to compile.
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func BuildTestBinaries(t testing.TB) *Binaries {
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td := t.TempDir()
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build(t, td, "tailscale.com/cmd/tailscaled", "tailscale.com/cmd/tailscale")
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return &Binaries{
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Dir: td,
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Daemon: filepath.Join(td, "tailscaled"+exe()),
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CLI: filepath.Join(td, "tailscale"+exe()),
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}
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}
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// buildMu limits our use of "go build" to one at a time, so we don't
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// fight Go's built-in caching trying to do the same build concurrently.
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var buildMu sync.Mutex
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func build(t testing.TB, outDir string, targets ...string) {
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buildMu.Lock()
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defer buildMu.Unlock()
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t0 := time.Now()
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defer func() { t.Logf("built %s in %v", targets, time.Since(t0).Round(time.Millisecond)) }()
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goBin := findGo(t)
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cmd := exec.Command(goBin, "install")
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if version.IsRace() {
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cmd.Args = append(cmd.Args, "-race")
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}
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cmd.Args = append(cmd.Args, targets...)
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cmd.Env = append(os.Environ(), "GOARCH="+runtime.GOARCH, "GOBIN="+outDir)
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errOut, err := cmd.CombinedOutput()
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if err == nil {
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return
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}
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if strings.Contains(string(errOut), "when GOBIN is set") {
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// Fallback slow path for cross-compiled binaries.
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for _, target := range targets {
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outFile := filepath.Join(outDir, path.Base(target)+exe())
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cmd := exec.Command(goBin, "build", "-o", outFile, target)
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cmd.Env = append(os.Environ(), "GOARCH="+runtime.GOARCH)
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if errOut, err := cmd.CombinedOutput(); err != nil {
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t.Fatalf("failed to build %v with %v: %v, %s", target, goBin, err, errOut)
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}
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}
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return
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}
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t.Fatalf("failed to build %v with %v: %v, %s", targets, goBin, err, errOut)
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}
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func findGo(t testing.TB) string {
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goBin := filepath.Join(runtime.GOROOT(), "bin", "go"+exe())
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if fi, err := os.Stat(goBin); err != nil {
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if os.IsNotExist(err) {
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t.Fatalf("failed to find go at %v", goBin)
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}
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t.Fatalf("looking for go binary: %v", err)
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} else if !fi.Mode().IsRegular() {
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t.Fatalf("%v is unexpected %v", goBin, fi.Mode())
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}
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return goBin
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}
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func exe() string {
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if runtime.GOOS == "windows" {
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return ".exe"
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}
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return ""
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}
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