incredible-go-core/pkg/io/files/fle_copier.go

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2024-06-25 17:20:46 +02:00
package files
import (
"fmt"
"io"
"os"
"path/filepath"
)
func CopyDir(src, dst string) error {
src = filepath.Clean(src)
dst = filepath.Clean(dst)
si, err := os.Stat(src)
if err != nil {
return err
}
if !si.IsDir() {
return fmt.Errorf("source is not a directory")
}
_, err = os.Stat(dst)
if err != nil && !os.IsNotExist(err) {
return err
}
if err == nil {
return fmt.Errorf("destination already exists")
}
err = os.MkdirAll(dst, si.Mode())
if err != nil {
return err
}
entries, err := os.ReadDir(src)
if err != nil {
return err
}
for _, entry := range entries {
srcPath := filepath.Join(src, entry.Name())
dstPath := filepath.Join(dst, entry.Name())
if entry.IsDir() {
err = CopyDir(srcPath, dstPath)
if err != nil {
return err
}
} else {
err = CopyFile(srcPath, dstPath)
if err != nil {
return err
}
}
}
return nil
}
func CopyFile(src, dst string) error {
srcFile, err := os.Open(src)
if err != nil {
return err
}
defer srcFile.Close()
dstFile, err := os.Create(dst)
if err != nil {
return err
}
defer dstFile.Close()
_, err = io.Copy(dstFile, srcFile)
if err != nil {
return err
}
err = dstFile.Sync()
if err != nil {
return err
}
si, err := os.Stat(src)
if err != nil {
return err
}
err = os.Chmod(dst, si.Mode())
if err != nil {
return err
}
return nil
}