Files
sealos/pkg/utils/exec/cmd.go
T

118 lines
3.1 KiB
Go

// Copyright © 2021 Alibaba Group Holding Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package exec
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/labring/sealos/pkg/utils/logger"
strutil "github.com/labring/sealos/pkg/utils/strings"
)
func Cmd(name string, args ...string) error {
logger.Debug("cmd for pipe in host: ", fmt.Sprintf("%s %s", name, strings.Join(args, " ")))
cmd := exec.Command(name, args[:]...) // #nosec
cmd.Stdin = os.Stdin
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
return cmd.Run()
}
//func CmdForPipe(exe string, args ...string) error {
// logger.Debug("cmd for pipe in host: ", fmt.Sprintf("%s %s", exe, strings.Join(args, " ")))
// cmd := exec.Command(exe, args...)
// outReader, err := cmd.StdoutPipe()
// if err != nil {
// return fmt.Errorf("error creating StdoutPipe for cmd: #%v", err)
// }
//
// errReader, err := cmd.StderrPipe()
// if err != nil {
// return fmt.Errorf("error creating StderrPipe for cmd: #%v", err)
// }
//
// outScanner := bufio.NewScanner(outReader)
// go func() {
// for outScanner.Scan() {
// //logger.Info()
// _, _ = os.Stdout.Write([]byte(outScanner.Text() + "\n"))
// }
// }()
//
// errScanner := bufio.NewScanner(errReader)
// go func() {
// for errScanner.Scan() {
// //logger.Info(errScanner.Text())
// _, _ = os.Stdout.Write([]byte(errScanner.Text() + "\n"))
// }
// }()
//
// if err = cmd.Start(); err != nil {
// return fmt.Errorf("error starting cmd: #%v", err)
// }
//
// if err = cmd.Wait(); err != nil {
// return fmt.Errorf("error waiting for cmd: #%v", err)
// }
//
// return nil
//}
func Output(name string, args ...string) ([]byte, error) {
cmd := exec.Command(name, args[:]...) // #nosec
return cmd.CombinedOutput()
}
func RunSimpleCmd(cmd string) (string, error) {
logger.Debug("cmd for sh in host: ", cmd)
result, err := exec.Command("/bin/sh", "-c", cmd).CombinedOutput() // #nosec
return string(result), err
}
func RunBashCmd(cmd string) (string, error) {
logger.Debug("cmd for bash in host: ", cmd)
result, err := exec.Command("/bin/bash", "-c", cmd).CombinedOutput() // #nosec
return string(result), err
}
func BashEval(cmd string) string {
out, _ := RunBashCmd(cmd)
return strutil.TrimWS(out)
}
func Eval(cmd string) string {
out, _ := RunSimpleCmd(cmd)
return strutil.TrimWS(out)
}
func CheckCmdIsExist(cmd string) (string, bool) {
cmd = fmt.Sprintf("type %s", cmd)
out, err := RunSimpleCmd(cmd)
if err != nil {
return "", false
}
outSlice := strings.Split(out, "is")
last := outSlice[len(outSlice)-1]
if last != "" && !strings.Contains(last, "not found") {
return strings.TrimSpace(last), true
}
return "", false
}