Moves files

internal/fs/file_unix.go

@@ -0,0 +1,58 @@
+// +build !windows
+
+package fs
+
+import (
+	"io/ioutil"
+	"os"
+	"syscall"
+)
+
+// fixpath returns an absolute path on windows, so restic can open long file
+// names.
+func fixpath(name string) string {
+	return name
+}
+
+// MkdirAll creates a directory named path, along with any necessary parents,
+// and returns nil, or else returns an error. The permission bits perm are used
+// for all directories that MkdirAll creates. If path is already a directory,
+// MkdirAll does nothing and returns nil.
+func MkdirAll(path string, perm os.FileMode) error {
+	return os.MkdirAll(fixpath(path), perm)
+}
+
+// TempFile creates a temporary file which has already been deleted (on
+// supported platforms)
+func TempFile(dir, prefix string) (f *os.File, err error) {
+	f, err = ioutil.TempFile(dir, prefix)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = os.Remove(f.Name()); err != nil {
+		return nil, err
+	}
+
+	return f, nil
+}
+
+// isNotSuported returns true if the error is caused by an unsupported file system feature.
+func isNotSupported(err error) bool {
+	if perr, ok := err.(*os.PathError); ok && perr.Err == syscall.ENOTSUP {
+		return true
+	}
+	return false
+}
+
+// Chmod changes the mode of the named file to mode.
+func Chmod(name string, mode os.FileMode) error {
+	err := os.Chmod(fixpath(name), mode)
+
+	// ignore the error if the FS does not support setting this mode (e.g. CIFS with gvfs on Linux)
+	if err != nil && isNotSupported(err) {
+		return nil
+	}
+
+	return err
+}