Drover's back, baby!

go/src/infra/tools/drover/util.go

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+package main
+
+import (
+        "fmt"
+        "os"
+        "os/exec"
+        "strings"
+)
+
+func failIf(err error) {
+        if err != nil {
+                fmt.Println("fatal:", err)
+                os.Exit(1)
+        }
+}
+
+func SplitLines(data string) []string {
+        return strings.Split(strings.TrimRight(data, "\n"), "\n")
+}
+
+func Shell(dir string) bool {
+        shell := os.Getenv("SHELL")
+        if shell == "" {
+                shell = DefaultShell
+        }
+        shell, err := exec.LookPath(shell)
+        failIf(err)
+        p, err := os.StartProcess(shell, []string{shell}, &os.ProcAttr{
+                Dir:   dir,
+                Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
+        })
+        failIf(err)
+        s, err := p.Wait()
+        failIf(err)
+
+        return s.Success()
+}