Update Dockerfile

Dockerfile

@@ -61,38 +61,38 @@ path = Path(pycdlib.pycdlib.__file__)
 text = path.read_text()
 
 old = """\
-        # The remove_child() method returns True if the parent no longer needs
-        # the extent that the directory record for this child was on.
-        if child.parent.remove_child(child, index, self.logical_block_size):
-            return self.logical_block_size
+        done = False
+        while not done:
+            num_bytes_to_remove += self._remove_child_from_dr(rec,
+                                                              rec.index_in_parent)
+
+            if rec.inode is not None:
 """
 
 new = """\
-        # The remove_child() method returns True if the parent no longer needs
-        # the extent that the directory record for this child was on.
-        if (
-            index < 0
-            or index >= len(child.parent.children)
-            or child.parent.children[index] is not child
-        ):
-            for actual_index, candidate in enumerate(child.parent.children):
-                if candidate is child:
-                    index = actual_index
-                    break
-            else:
-                raise pycdlibexception.PyCdlibInternalError(
-                    'Child is not present in its recorded parent'
-                )
+        done = False
+        while not done:
+            # El Torito boot images may be represented by synthetic directory
+            # records that are linked to an inode but are not actual children
+            # of a filesystem directory. Only remove the record from its parent
+            # when it is really present in the parent's children list.
+            if rec.parent is not None:
+                for actual_index, child in enumerate(rec.parent.children):
+                    if child is rec:
+                        num_bytes_to_remove += self._remove_child_from_dr(
+                            rec, actual_index
+                        )
+                        break
 
-        if child.parent.remove_child(child, index, self.logical_block_size):
-            return self.logical_block_size
+            if rec.inode is not None:
 """
 
 count = text.count(old)
 
 if count != 1:
     raise SystemExit(
-        f"Expected exactly one PyCdlib source block, found {count} in {path}"
+        f"Expected exactly one PyCdlib _rm_dr_link block, "
+        f"found {count} in {path}"
     )
 
 path.write_text(text.replace(old, new, 1))