61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// Package util define universal utility functions
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package util
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import (
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"bytes"
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"errors"
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"fmt"
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"io/fs"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"wave_record/constant"
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)
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// FileExists return boolean value result specifying whether the file path exists
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func FileExists(filePath string) bool {
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_, err := os.Stat(filePath)
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// return !os.IsNotExist(err)
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return !errors.Is(err, fs.ErrNotExist)
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}
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func commandExec(name string, args ...string) (outString string, err error) {
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var stdout bytes.Buffer
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var stderr bytes.Buffer
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cmd := exec.Command(name, args...)
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err = cmd.Run()
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outString = stdout.String()
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if err != nil {
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err = fmt.Errorf("exec failed:%v,stderr=%s. name=%s,args=%v", err, stderr.String(), name, args)
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}
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return
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}
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// RemoveFile return file movement result
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func RemoveFile(src, dst string) error {
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_, err := commandExec("mv", src, dst)
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return err
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}
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// FileNameConvert return the absolute path of the converted config file or data file
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func FileNameConvert(filePath string) (string, error) {
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dirPath := filepath.Dir(filePath)
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fileName := filepath.Base(filePath)
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name := strings.Split(fileName, ".")[0]
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suffix := filepath.Ext(fileName)
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if suffix == constant.ConfigFileSuffix {
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fileName := strings.Join([]string{name, constant.DataFileSuffix}, "")
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return filepath.Join(dirPath, fileName), nil
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} else if suffix == constant.DataFileSuffix {
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fileName := strings.Join([]string{name, constant.ConfigFileSuffix}, "")
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return filepath.Join(dirPath, fileName), nil
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}
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return "", constant.ErrNotSupportFileType
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}
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