file and folder copy
@@ -16,6 +16,7 @@ import (
"github.com/gogf/gf/g/text/gstr"
"github.com/gogf/gf/g/util/gconv"
"io"
+ "io/ioutil"
"os"
"os/exec"
"os/user"
@@ -450,3 +451,106 @@ func MainPkgPath() string {
func TempDir() string {
return os.TempDir()
}
+
+// https://gist.github.com/r0l1/92462b38df26839a3ca324697c8cba04
+// CopyFile copies the contents of the file named src to the file named
+// by dst. The file will be created if it does not already exist. If the
+// destination file exists, all it's contents will be replaced by the contents
+// of the source file. The file mode will be copied from the source and
+// the copied data is synced/flushed to stable storage.
+func CopyFile(src, dst string) (err error) {
+ in, err := os.Open(src)
+ if err != nil {
+ return
+ }
+ defer in.Close()
+
+ out, err := os.Create(dst)
+ if err != nil {
+ return
+ }
+ defer func() {
+ if e := out.Close(); e != nil {
+ err = e
+ }
+ }()
+
+ _, err = io.Copy(out, in)
+ if err != nil {
+ return
+ }
+
+ err = out.Sync()
+ if err != nil {
+ return
+ }
+
+ si, err := os.Stat(src)
+ if err != nil {
+ return
+ }
+ err = os.Chmod(dst, si.Mode())
+ if err != nil {
+ return
+ }
+
+ return
+}
+
+// CopyDir recursively copies a directory tree, attempting to preserve permissions.
+// Source directory must exist, destination directory must *not* exist.
+// Symlinks are ignored and skipped.
+func CopyDir(src string, dst string) (err 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
+ }
+ if err == nil {
+ return fmt.Errorf("destination already exists")
+ }
+
+ err = os.MkdirAll(dst, si.Mode())
+ if err != nil {
+ return
+ }
+
+ entries, err := ioutil.ReadDir(src)
+ if err != nil {
+ return
+ }
+
+ 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
+ }
+ } else {
+ // Skip symlinks.
+ if entry.Mode()&os.ModeSymlink != 0 {
+ continue
+ }
+
+ err = CopyFile(srcPath, dstPath)
+ if err != nil {
+ return
+ }
+ }
+ }
+
+ return
+}
\ No newline at end of file
