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66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package command
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import (
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"bytes"
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"fmt"
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"os/exec"
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"strconv"
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"strings"
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)
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// ExecCmdDirBytes executes system command in given directory
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// and return stdout, stderr in bytes type, along with possible error.
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func ExecCmdDirBytes(dir, cmdName string, args ...string) ([]byte, []byte, error) {
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bufOut := new(bytes.Buffer)
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bufErr := new(bytes.Buffer)
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cmd := exec.Command(cmdName, args...)
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cmd.Dir = dir
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cmd.Stdout = bufOut
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cmd.Stderr = bufErr
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err := cmd.Run()
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return bufOut.Bytes(), bufErr.Bytes(), err
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}
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// ExecCmdBytes executes system command
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// and return stdout, stderr in bytes type, along with possible error.
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func ExecCmdBytes(cmdName string, args ...string) ([]byte, []byte, error) {
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return ExecCmdDirBytes("", cmdName, args...)
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}
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// ExecCmdDir executes system command in given directory
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// and return stdout, stderr in string type, along with possible error.
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func ExecCmdDir(dir, cmdName string, args ...string) (string, string, error) {
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bufOut, bufErr, err := ExecCmdDirBytes(dir, cmdName, args...)
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return string(bufOut), string(bufErr), err
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}
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// ExecCmd executes system command
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// and return stdout, stderr in string type, along with possible error.
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func ExecCmd(cmdName string, args ...string) (string, string, error) {
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return ExecCmdDir("", cmdName, args...)
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}
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// 版本对比 v1比v2大返回1，小于返回-1，等于返回0
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func VerCompare(ver1, ver2 string) int {
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ver1 = strings.TrimLeft(ver1, "ver") // 清除v,e,r
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ver2 = strings.TrimLeft(ver2, "ver") // 清除v,e,r
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p1 := strings.Split(ver1, ".")
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p2 := strings.Split(ver2, ".")
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ver1 = ""
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for _, v := range p1 {
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iv, _ := strconv.Atoi(v)
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ver1 = fmt.Sprintf("%s%04d", ver1, iv)
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}
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ver2 = ""
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for _, v := range p2 {
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iv, _ := strconv.Atoi(v)
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ver2 = fmt.Sprintf("%s%04d", ver2, iv)
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}
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return strings.Compare(ver1, ver2)
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}
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