// Compile compiles and links sourcefile and atomically renames the
// resulting binary to runfile.
func Compile(sourcefile, runfile string, useGd bool) (err os.Error) {
pid := strconv.Itoa(os.Getpid())
content, err := ioutil.ReadFile(sourcefile)
if len(content) > 2 && content[0] == '#' && content[1] == '!' {
content[0] = '/'
content[1] = '/'
sourcefile = runfile + "." + pid + ".go"
ioutil.WriteFile(sourcefile, content, 0600)
defer os.Remove(sourcefile)
}
bindir := filepath.Join(runtime.GOROOT(), "bin")
if useGd {
gd := filepath.Join(bindir, "mgd")
if _, err := os.Stat(gd); err != nil {
if gd, err = exec.LookPath("mgd"); err != nil {
return os.NewError("can't find mgd")
}
}
err = Exec([]string{gd, "-L", "_obj", ".", "-q", "-o", runfile})
return err
} else {
n := TheChar()
gc := filepath.Join(bindir, n+"g")
ld := filepath.Join(bindir, n+"l")
if _, err := os.Stat(gc); err != nil {
if gc, err = exec.LookPath(n + "g"); err != nil {
return os.NewError("can't find " + n + "g")
}
}
if _, err := os.Stat(ld); err != nil {
if ld, err = exec.LookPath(n + "l"); err != nil {
return os.NewError("can't find " + n + "l")
}
}
gcout := runfile + "." + pid + "." + n
ldout := runfile + "." + pid
err = Exec([]string{gc, "-o", gcout, sourcefile})
if err != nil {
return err
}
defer os.Remove(gcout)
err = Exec([]string{ld, "-o", ldout, gcout})
if err != nil {
return err
}
return os.Rename(ldout, runfile)
}
panic("Unreachable code")
}
func main() {
flag.Parse()
cwd, _ := os.Getwd()
binary, _ := exec.LookPath(flag.Args()[0])
for {
cmd, _ := exec.Run(binary, flag.Args(), nil, cwd, exec.PassThrough, exec.PassThrough, exec.PassThrough)
pid := cmd.Process.Pid
extras := make(ABC, 0)
if *httpTimeoutUrl != "" {
extras = append(extras, setupHttpTimeoutCheck(pid))
}
if *httpStatusUrl != "" {
extras = append(extras, setupHttpStatusCheck(pid))
}
if *maxMemory > 0 {
extras = append(extras, setupMaxMemoryCheck(pid))
}
cmd.Wait(os.WSTOPPED)
println("Process died, restarting.")
extras.closeAll()
}
}
func envOrDefault(cmd, dfl string) string {
p, err := exec.LookPath(cmd)
if err != nil {
return dfl
}
return p
}
func ExecRead(cmd string, args ...string) (out []byte, err os.Error) {
abscmd, err := exec.LookPath(cmd)
if err != nil {
return out, os.NewError("Couldn't find " + cmd + ": " + err.String())
}
cmdargs := make([]string, len(args)+1)
cmdargs[0] = cmd
for i, a := range args {
cmdargs[i+1] = a
}
printexec(cmd, args)
pid, err := exec.Run(abscmd, cmdargs, nil, "",
exec.PassThrough, exec.Pipe, exec.PassThrough)
if err != nil {
return
}
out, err = ioutil.ReadAll(pid.Stdout)
if err != nil {
return
}
ws, err := pid.Wait(0) // could have been os.WRUSAGE
if err != nil {
return
}
if ws.ExitStatus() != 0 {
err = os.NewError(cmd + " exited with status " + strconv.Itoa(ws.ExitStatus()))
}
return out, nil
}
// run runs the command argv, resolving argv[0] if necessary by searching $PATH.
// It provides input on standard input to the command.
func run(argv []string, input []byte) (out string, err os.Error) {
if len(argv) < 1 {
err = os.EINVAL
goto Error
}
prog, ok := lookPathCache[argv[0]]
if !ok {
prog, err = exec.LookPath(argv[0])
if err != nil {
goto Error
}
lookPathCache[argv[0]] = prog
}
cmd := exec.Command(prog, argv[1:]...)
if len(input) > 0 {
cmd.Stdin = bytes.NewBuffer(input)
}
bs, err := cmd.CombinedOutput()
if err == nil {
return string(bs), nil
}
Error:
err = &runError{dup(argv), err}
return
}
func diff(b1, b2 []byte) (data []byte, err os.Error) {
f1, err := ioutil.TempFile("", "gofix")
if err != nil {
return nil, err
}
defer os.Remove(f1.Name())
defer f1.Close()
f2, err := ioutil.TempFile("", "gofix")
if err != nil {
return nil, err
}
defer os.Remove(f2.Name())
defer f2.Close()
f1.Write(b1)
f2.Write(b2)
diffcmd, err := exec.LookPath("diff")
if err != nil {
return nil, err
}
c, err := exec.Run(diffcmd, []string{"diff", f1.Name(), f2.Name()}, nil, "",
exec.DevNull, exec.Pipe, exec.MergeWithStdout)
if err != nil {
return nil, err
}
defer c.Close()
return ioutil.ReadAll(c.Stdout)
}
// genRun implements run and tryRun.
func genRun(dir string, stdin []byte, cmd []string, quiet bool) os.Error {
bin, err := exec.LookPath(cmd[0])
if err != nil {
return err
}
p, err := exec.Run(bin, cmd, os.Environ(), dir, exec.Pipe, exec.Pipe, exec.MergeWithStdout)
if *verbose {
fmt.Fprintf(os.Stderr, "%s: %s; %s %s\n", argv0, dir, bin, strings.Join(cmd[1:], " "))
}
if err != nil {
return err
}
go func() {
p.Stdin.Write(stdin)
p.Stdin.Close()
}()
var buf bytes.Buffer
io.Copy(&buf, p.Stdout)
io.Copy(&buf, p.Stdout)
w, err := p.Wait(0)
p.Close()
if !w.Exited() || w.ExitStatus() != 0 {
if !quiet || *verbose {
if dir != "" {
dir = "cd " + dir + "; "
}
fmt.Fprintf(os.Stderr, "%s: === %s%s\n", argv0, dir, strings.Join(cmd, " "))
os.Stderr.Write(buf.Bytes())
fmt.Fprintf(os.Stderr, "--- %s\n", w)
}
return os.ErrorString("running " + cmd[0] + ": " + w.String())
}
return nil
}
// run executes the specified command and returns its output and an error.
func run(cmd ...string) ([]byte, os.Error) {
// find the specified binary
bin, err := exec.LookPath(cmd[0])
if err != nil {
// report binary as well as the error
return nil, os.NewError(cmd[0] + ": " + err.String())
}
// run the binary and read its combined stdout and stderr into a buffer
p, err := exec.Run(bin, cmd, os.Environ(), "", exec.DevNull, exec.Pipe, exec.MergeWithStdout)
if err != nil {
return nil, err
}
var buf bytes.Buffer
io.Copy(&buf, p.Stdout)
w, err := p.Wait(0)
p.Close()
if err != nil {
return nil, err
}
// set the error return value if the program had a non-zero exit status
if !w.Exited() || w.ExitStatus() != 0 {
err = os.ErrorString("running " + cmd[0] + ": " + w.String())
}
return buf.Bytes(), err
}
func mustRunDoozer(listen, web, attach string) *exec.Cmd {
exe, err := exec.LookPath("doozerd")
if err != nil {
panic(err)
}
args := []string{
"doozerd",
"-l=127.0.0.1:" + listen,
"-w=127.0.0.1:" + web,
}
if attach != "" {
args = append(args, "-a", "127.0.0.1:"+attach)
}
cmd, err := exec.Run(
exe,
args,
nil,
".",
exec.PassThrough,
exec.PassThrough,
exec.PassThrough,
)
if err != nil {
panic(err)
}
return cmd
}
func TestRmRf(t *testing.T) {
t.Log("TestRmRf")
wd, clean := setupUfs(t)
defer clean()
err := os.MkdirAll(wd+"/ro/dir/subdir", 0755)
CheckSuccess(err)
contents := "hello"
fn := wd + "/ro/dir/subdir/y"
err = ioutil.WriteFile(fn, []byte(contents), 0644)
CheckSuccess(err)
bin, err := exec.LookPath("rm")
CheckSuccess(err)
cmd := exec.Command(bin, "-rf", wd+"/mount/dir")
err = cmd.Run()
if err != nil {
t.Fatal("rm -rf returned error:", err)
}
for _, f := range []string{"dir/subdir/y", "dir/subdir", "dir"} {
if fi, _ := os.Lstat(filepath.Join(wd, "mount", f)); fi != nil {
t.Errorf("file %s should have disappeared: %v", f, fi)
}
}
names, err := Readdirnames(wd + "/rw/DELETIONS")
CheckSuccess(err)
if len(names) != 3 {
t.Fatal("unexpected names", names)
}
}
func run(name string, args ...string) string {
path, err := exec.LookPath(name)
if err != nil {
panic(err)
}
cwd, err := os.Getwd()
if err != nil {
panic(err)
}
p, err := exec.Run(path, append([]string{name}, args...), os.Environ(),
cwd, exec.Pipe, exec.Pipe, exec.Pipe)
if err != nil {
panic(err)
}
defer p.Close()
data, err := ioutil.ReadAll(p.Stdout)
if err != nil {
panic(err)
}
return strings.TrimSpace(string(data))
}
func getProgramPath() (string, os.Error) {
program := os.Args[0]
dir, _ := path.Split(program)
if dir == "" {
binPath, pathError := exec.LookPath(program)
if pathError != nil {
if syscall.Access(program, syscall.O_RDONLY) != 0 {
return "", os.NewError("Path to " + program + " couldn't be found")
}
cwd, cwdError := os.Getwd()
if cwdError != nil {
return "", cwdError
}
return cwd, nil
}
binPath, _ = path.Split(binPath)
return binPath, nil
}
dir, _ = abspath(dir)
return dir, nil
}
func main() {
commands := []string{
`ls /home`,
`ls '/home'`,
`ls -l /home`,
`echo 'Hello, one and all!'`,
`which python`,
// Outputs "hello, world\n" instead of "\n"
`python -c print 'hello, world'`,
// Outputs "\n" instead of "hello, world\n"
`python -c "print 'hello, world'"`,
}
for ndx, c := range commands {
fmt.Printf("Command %d of %d: %s\n", ndx+1, len(commands), c)
// When I replace 3 with -1, the last 2 commands produce a Python error
argv := strings.Split(c, " ", 3)
bin, err := exec.LookPath(argv[0])
if cmd, e := exec.Run(bin, argv, nil, "", exec.DevNull, exec.Pipe, exec.MergeWithStdout); e == nil && err == nil {
body, _ := ioutil.ReadAll(cmd.Stdout)
fmt.Printf("%s\n", string(body))
} else {
fmt.Printf("e: %v", e)
fmt.Printf("err: %v", err)
}
}
}
func CreateTestArgv() []string {
pwd, e := os.Getwd()
if e != nil {
log.Fatal("[ERROR] could not locate working directory\n")
}
argv := make([]string, 0)
if global.GetString("-backend") == "express" {
vmrun, e := exec.LookPath("vmrun")
if e != nil {
log.Fatalf("[ERROR] %s\n", e)
}
argv = append(argv, vmrun)
}
argv = append(argv, filepath.Join(pwd, global.GetString("-test-bin")))
if global.GetString("-bench") != "" {
argv = append(argv, "-test.bench")
argv = append(argv, global.GetString("-bench"))
}
if global.GetString("-match") != "" {
argv = append(argv, "-test.run")
argv = append(argv, global.GetString("-match"))
}
if global.GetBool("-verbose") {
argv = append(argv, "-test.v")
}
return argv
}
// Format takes a markdown-formatted string and returns an equivalent
// HTML-formatted string.
//
// TODO write built-in markdown implementation, to avoid forking for every
// post
func Format(md string) (html string, err os.Error) {
cmdName, err := exec.LookPath("markdown")
if err != nil {
return
}
cmd, err := exec.Run(
cmdName,
[]string{},
os.Environ(),
".",
exec.Pipe,
exec.Pipe,
exec.PassThrough,
)
if err != nil {
return
}
cmd.Stdin.WriteString(md)
cmd.Stdin.Close()
b, err := ioutil.ReadAll(cmd.Stdout)
if err != nil {
return
}
html = string(b)
err = cmd.Close()
return
}
func WriteReadS(arg1 string, inp string, args []string) (output string, e os.Error) {
debug.Println("calling git",arg1,args)
args = stringslice.Cat([]string{"git", arg1}, args)
output = "" // empty output if we have an error...
git, e := exec.LookPath("git")
if e != nil { e = explain("exec.LookPath",e); return }
pid,e := exec.Run(git, args, os.Environ(), ".",
exec.Pipe, exec.Pipe, exec.PassThrough)
if e != nil { announce(e); return }
_,e = fmt.Fprint(pid.Stdin, inp)
if e != nil { announce(e); return }
e = pid.Stdin.Close()
if e != nil { announce(e); return }
o,e := ioutil.ReadAll(pid.Stdout)
output = string(o)
if e != nil { announce(e); return }
ws,e := pid.Wait(0) // could have been os.WRUSAGE
if e != nil { announce(e); return }
if ws.ExitStatus() != 0 {
e = os.NewError(fmt.Sprintf("git exited with '%v'",ws.ExitStatus()))
announce(e)
return
}
return
}
func init() {
cache := make(map[string]string)
translations := make(map[string]string)
for i := '1'; i < '7'; i++ {
for sv := 0; sv <= bridge.NoTrump; sv++ {
stringi := string([]byte{byte(i)})
spoken := stringi + " " + bridge.SuitName[sv] + "."
translations[stringi+bridge.SuitHTML[sv]] = spoken
translations[stringi+bridge.SuitLetter[sv]] = spoken
translations[stringi+bridge.SuitColorHTML[sv]] = spoken
}
}
translations[" P"] = "Pass."
translations["P"] = "Pass."
translations[" X"] = "Double!"
translations["X"] = "Double!"
translations["XX"] = "Redouble!"
espeak, err := exec.LookPath("espeak")
if err == nil {
go func() {
for {
req := <-seek_speech
bid := req.bid
if sp, ok := translations[bid]; ok {
bid = sp
}
fmt.Println("I am speaking:", bid)
if s, ok := cache[req.bid]; ok {
req.answer <- answertype{s, nil}
} else {
c, err := exec.Run(espeak, []string{"espeak", "--stdout"}, nil, "",
exec.Pipe, exec.Pipe, exec.PassThrough)
if err != nil {
req.answer <- answertype{"", err}
continue
}
defer c.Close()
fmt.Fprintln(c.Stdin, bid)
c.Stdin.Close()
o, err := ioutil.ReadAll(c.Stdout)
if err != nil {
req.answer <- answertype{"", err}
continue
}
out := string(o)
cache[req.bid] = out
req.answer <- answertype{out, nil}
}
}
}()
} else {
go func() {
fmt.Println("We won't be able to speak, since I can't find espeak!", err)
for {
req := <-seek_speech
req.answer <- answertype{"", os.NewError("Cannot find espeak in path.")}
}
}()
}
}
func GetPath() string {
file, _ := exec.LookPath(os.Args[0])
dir, _ := path.Split(file)
os.Chdir(dir)
path, _ := os.Getwd()
return path + "/"
}
/*
This function does exactly the same as "make clean".
*/
func clean() {
bashBin, err := exec.LookPath("bash")
if err != nil {
logger.Error("Need bash to clean.\n")
os.Exit(127)
}
argv := []string{bashBin, "-c", "commandhere"}
if *flagVerboseMode {
argv[2] = "rm -rfv *.[568]"
} else {
argv[2] = "rm -rf *.[568]"
}
logger.Info("Running: %v\n", argv[2:])
cmd, err := exec.Run(bashBin, argv, os.Environ(), rootPath,
exec.DevNull, exec.PassThrough, exec.PassThrough)
if err != nil {
logger.Error("%s\n", err)
os.Exit(1)
}
waitmsg, err := cmd.Wait(0)
if err != nil {
logger.Error("Couldn't delete files: %s\n", err)
os.Exit(1)
}
if waitmsg.ExitStatus() != 0 {
logger.Error("rm returned with errors.\n")
os.Exit(waitmsg.ExitStatus())
}
}
func run(argv []string) os.Error {
cmd, err := exec.LookPath(argv[0])
if err != nil {
return err
}
var stdin *os.File
if syscall.OS == "windows" {
stdin, _ = os.Open("CONIN$")
} else {
stdin = os.Stdin
}
p, err := os.StartProcess(cmd, argv, &os.ProcAttr{Files: []*os.File{stdin, os.Stdout, os.Stderr}})
if err != nil {
return err
}
defer p.Release()
w, err := p.Wait(0)
if err != nil {
return err
}
if !w.Exited() || w.ExitStatus() != 0 {
return os.NewError("failed to execute text editor")
}
return nil
}
func TestEnvOverride(t *testing.T) {
cgifile, _ := filepath.Abs("testdata/test.cgi")
var perl string
var err os.Error
perl, err = exec.LookPath("perl")
if err != nil {
return
}
perl, _ = filepath.Abs(perl)
cwd, _ := os.Getwd()
h := &Handler{
Path: perl,
Root: "/test.cgi",
Dir: cwd,
Args: []string{cgifile},
Env: []string{
"SCRIPT_FILENAME=" + cgifile,
"REQUEST_URI=/foo/bar"},
}
expectedMap := map[string]string{
"cwd": cwd,
"env-SCRIPT_FILENAME": cgifile,
"env-REQUEST_URI": "/foo/bar",
}
runCgiTest(t, h, "GET /test.cgi HTTP/1.0\nHost: example.com\n\n", expectedMap)
}
func justrun(cmd string, args ...string) os.Error {
abscmd, err := exec.LookPath(cmd)
if err != nil {
return os.NewError("Couldn't find " + cmd + ": " + err.String())
}
cmdargs := make([]string, len(args)+1)
cmdargs[0] = cmd
for i, a := range args {
cmdargs[i+1] = a
}
pid, err := exec.Run(abscmd, cmdargs, nil, "",
exec.PassThrough, exec.PassThrough, exec.PassThrough)
if err != nil {
return err
}
wmsg, err := pid.Wait(0)
if err != nil {
return err
}
if wmsg.ExitStatus() != 0 {
return os.NewError(cmd + " exited with status " + fmt.Sprint(wmsg.ExitStatus()))
}
return nil
}
func FindGobinExternal(name string) (path string, err error) {
path, err = exec.LookPath(name)
if err != nil {
path = filepath.Join(GOBIN, name)
_, err = os.Stat(path)
}
return
}
func (r *Request) GetPIN() (pin string, outerr os.Error) {
defer catch(&outerr)
bin, err := exec.LookPath("pinentry")
if err != nil {
return r.getPINNaïve()
}
cmd := exec.Command(bin)
stdin, _ := cmd.StdinPipe()
stdout, _ := cmd.StdoutPipe()
check(cmd.Start())
defer cmd.Wait()
defer stdin.Close()
br := bufio.NewReader(stdout)
lineb, _, err := br.ReadLine()
if err != nil {
return "", fmt.Errorf("Failed to get getpin greeting")
}
line := string(lineb)
if !strings.HasPrefix(line, "OK") {
return "", fmt.Errorf("getpin greeting said %q", line)
}
set := func(cmd string, val string) {
if val == "" {
return
}
fmt.Fprintf(stdin, "%s %s\n", cmd, val)
line, _, err := br.ReadLine()
if err != nil {
panic("Failed to " + cmd)
}
if string(line) != "OK" {
panic("Response to " + cmd + " was " + string(line))
}
}
set("SETPROMPT", r.Prompt)
set("SETDESC", r.Desc)
set("SETOK", r.OK)
set("SETCANCEL", r.Cancel)
set("SETERROR", r.Error)
set("OPTION", "ttytype="+os.Getenv("TERM"))
tty, err := os.Readlink("/proc/self/fd/0")
if err == nil {
set("OPTION", "ttyname="+tty)
}
fmt.Fprintf(stdin, "GETPIN\n")
lineb, _, err = br.ReadLine()
if err != nil {
return "", fmt.Errorf("Failed to read line after GETPIN: %v", err)
}
line = string(lineb)
if strings.HasPrefix(line, "D ") {
return line[2:], nil
}
if strings.HasPrefix(line, "ERR 83886179 ") {
return "", ErrCancel
}
return "", fmt.Errorf("GETPIN response didn't start with D; got %q", line)
}
func gc(arch string) {
var A string // a:architecture
var err os.Error
if arch == "" {
A = os.Getenv("GOARCH")
} else {
A = arch
}
var S, C, L string // S:suffix, C:compiler, L:linker
switch A {
case "arm":
S = ".5"
C = "5g"
L = "5l"
case "amd64":
S = ".6"
C = "6g"
L = "6l"
case "386":
S = ".8"
C = "8g"
L = "8l"
default:
log.Fatalf("[ERROR] unknown architecture: %s\n", A)
}
pathCompiler, err = exec.LookPath(C)
if err != nil {
log.Fatalf("[ERROR] could not find compiler: %s\n", C)
}
pathLinker, err = exec.LookPath(L)
if err != nil {
log.Fatalf("[ERROR] could not find linker: %s\n", L)
}
suffix = S
}
func express() {
var err os.Error
pathCompiler, err = exec.LookPath("vmgc")
if err != nil {
log.Fatalf("[ERROR] could not find compiler: %s\n", pathCompiler)
}
pathLinker, err = exec.LookPath("vmld")
if err != nil {
log.Fatalf("[ERROR] could not find linker: %s\n", pathLinker)
}
suffix = ".vmo"
}
func runSystemCommand(argv []string, dir string) string {
lookedPath, _ := exec.LookPath(argv[0])
r, w, _ := os.Pipe()
pid, _ := os.ForkExec(lookedPath, argv, nil, dir, []*os.File{nil, w, w})
w.Close()
os.Wait(pid, 0)
var b bytes.Buffer
io.Copy(&b, r)
return b.String()
}
func main() {
bin, err := exec.LookPath("python")
if cmd, e := exec.Run(bin, []string{"", "-c", `print 'hello world'`}, nil, "", exec.DevNull, exec.Pipe, exec.MergeWithStdout); e == nil && err == nil {
b, _ := ioutil.ReadAll(cmd.Stdout)
fmt.Printf("output: %s\n", string(b))
} else {
fmt.Printf("e: %v\n", e)
fmt.Printf("err: %v\n", err)
}
}
func (d Dag) External() {
var err os.Error
var argv []string
var tmp string
var set *stringset.StringSet
var i int = 0
set = stringset.New()
for _, v := range d {
for dep := range v.dependencies.Iter() {
if !d.localDependency(dep) {
set.Add(dep)
}
}
}
for u := range set.Iter() {
if !seemsExternal(u) {
set.Remove(u)
}
}
argv = make([]string, 0)
tmp, err = exec.LookPath("goinstall")
if err != nil {
log.Fatalf("[ERROR] %s\n", err)
}
argv = append(argv, tmp)
if global.GetBool("-verbose") {
argv = append(argv, "-v=true")
}
argv = append(argv, "-u=true")
argv = append(argv, "-clean=true")
i = len(argv)
argv = append(argv, "dummy")
for u := range set.Iter() {
argv[i] = u
if global.GetBool("-dryrun") {
fmt.Printf("%s || exit 1\n", strings.Join(argv, " "))
} else {
say.Printf("goinstall: %s\n", u)
handy.StdExecve(argv, true)
}
}
}
//
// Copy the big database into the data/ dir, bzip2recover to split it into
// rec#####dbname.bz2, and move the big database back to the drop dir.
//
func splitBz2File(recent string) {
// Be user friendly: Alert the user and wait a few seconds."
fmt.Println("I will be using bzip2recover to split", recent, "into many smaller files.")
time.Sleep(3000000000)
// Move the recent db over to the data dir since bzip2recover extracts
// to the same directory the db exists in, and we don't want to pollute
// drop_dir with the rec*.xml.bz2 files.
newpath := filepath.Join(conf["data_dir"], basename(recent))
err := os.Rename(recent, newpath)
if err != nil {
if e, ok := err.(*os.LinkError); ok && e.Error == os.EXDEV {
panic(GracefulError("Your source file must be on the same partition as your target dir. Sorry."))
} else {
panic(fmt.Sprintf("rename: %T %#v\n", err, err))
}
}
// Make sure that we move it _back_ to drop dir, no matter what happens.
defer os.Rename(newpath, recent)
args := []string{"bzip2recover", newpath}
executable, patherr := exec.LookPath("bzip2recover")
if patherr != nil {
fmt.Println("bzip2recover not found anywhere in your path, making wild guess")
executable = "/usr/bin/bzip2recover"
}
environ := os.ProcAttr{
Dir: ".",
Env: os.Environ(),
Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
}
bz2recover, err := os.StartProcess(executable, args, &environ)
if err != nil {
switch t := err.(type) {
case *os.PathError:
if err.(*os.PathError).Error == os.ENOENT {
panic(GracefulError("bzip2recover not found. Giving up."))
} else {
fmt.Printf("err is: %T: %#v\n", err, err)
panic("Unable to run bzip2recover? err is ")
}
default:
fmt.Printf("err is: %T: %#v\n", err, err)
panic("Unable to run bzip2recover? err is ")
}
}
bz2recover.Wait(0)
}