LookPath

本文整理汇总了Golang中exec.LookPath函数的典型用法代码### 示例。如果您正苦于以下问题：Golang LookPath函数的具体用法？Golang LookPath怎么用？Golang LookPath使用的例子？那么恭喜您, 这里精选的函数代码### 示例或许可以为您提供帮助。

在下文中一共展示了LookPath函数的20个代码### 示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码### 示例。

示例1: Compile

// 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")
}

开发者ID:ssrl，项目名称:gonrun，代码行数:54，代码来源:gonrun.go

示例2: main

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()
    }
}

开发者ID:darkhelmet，项目名称:sniper，代码行数:26，代码来源:scout-sniper.go

示例3: envOrDefault

func envOrDefault(cmd, dfl string) string {
    p, err := exec.LookPath(cmd)
    if err != nil {
        return dfl
    }
    return p
}

开发者ID:andradeandrey，项目名称:Faff，代码行数:7，代码来源:main.go

示例4: ExecRead

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
}

开发者ID:andradeandrey，项目名称:goadmin，代码行数:31，代码来源:deps.go

示例5: run

// 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
}

开发者ID:jnwhiteh，项目名称:go，代码行数:30，代码来源:main.go