+'''.replace('\n', '')
+
+HTML_FORMAT_FILE = '
{name} ({size})'
+
+
+class PathTree(treeclass.Tree):
+ def __init__(
+ self,
+ path,
+ display_name=None,
+ item_type=None,
+ size=None,
+ **kwargs,
+ ):
+ self.path = normalize_slash(path)
+ if display_name is None:
+ self.display_name = self.path.split(os.sep)[-1]
+ else:
+ self.display_name = display_name
+ kwargs['identifier'] = self.display_name
+ super(PathTree, self).__init__(**kwargs)
+ self.size = size
+ self.item_type = item_type
+
+def normalize_slash(path):
+ path = path.replace('/', '\\')
+ path = path.rstrip(os.sep)
+ return path
+
+def from_paths(path_datas, root_name):
+ all_datas = []
+ for data in path_datas:
+ if isinstance(data, str):
+ data = {'path': data}
+ elif isinstance(data, dict):
+ pass
+ else:
+ raise TypeError(data)
+ data['parts'] = data['path'].split(os.sep)
+ all_datas.append(data)
+
+ #path_parts = path_parts.split('\\')
+ #item = {'url': url, 'size': size, 'path_parts': path_parts}
+ #all_items.append(item)
+ #scheme = url_split(all_items[0]['url'])['scheme']
+
+ all_datas.sort(key=lambda x: x['path'])
+
+ tree_root = PathTree(root_name, item_type='directory')
+ tree_root.unsorted_children = all_datas
+ node_queue = set()
+ node_queue.add(tree_root)
+
+ # In this process, URLs are divided up into their nodes one directory layer at a time.
+ # The root has all URLs as its `unsorted_children` attribute, and creates
+ # nodes for each of the top-level directories.
+ # Those nodes receive all subdirectories, and repeat.
+ while len(node_queue) > 0:
+ node = node_queue.pop()
+ for new_child_data in node.unsorted_children:
+ # Create a new node for the subdirectory, which is path_parts[0]
+ # The rest of the child path is assigned to that node to be further divided.
+ # By popping, we modify the path_parts in place so that the next cycle
+ # only deals with the remaining subpath.
+ path_parts = new_child_data['parts']
+ child_identifier = path_parts.pop(0)
+
+ child = node.children.get(child_identifier)
+ if not child:
+ child = PathTree(child_identifier)
+ child.unsorted_children = []
+ node.add_child(child)
+
+ if len(path_parts) > 0:
+ child.item_type = 'directory'
+ child.unsorted_children.append(new_child_data)
+ else:
+ child.item_type = 'file'
+ child.size = new_child_data.get('size')
+ child.data = new_child_data.get('data')
+ node_queue.add(child)
+
+ if node.parent is not None and node.parent != tree_root:
+ node.path = node.parent.path + os.sep + node.path
+
+ del node.unsorted_children
+ return tree_root
+
+def recursive_get_size(node):
+ '''
+ Calculate the size of the Directory nodes by summing the sizes of all children.
+ Modifies the nodes in-place.
+ '''
+ return_value = {
+ 'size': 0,
+ 'unmeasured': 0,
+ }
+ if node.item_type == 'file':
+ if node.size is None:
+ return_value['unmeasured'] = 1
+ # = instead of += because if the node.size is None, we want to propogate
+ # that to the caller, rather than normalizing it to 0.
+ return_value['size'] = node.size
+
+ else:
+ for child in node.list_children():
+ child_details = recursive_get_size(child)
+ return_value['size'] += child_details['size'] or 0
+ return_value['unmeasured'] += child_details['unmeasured']
+ node.size = return_value['size']
+
+ return return_value
+
+def recursive_print_node(node, depth=0, use_html=False, header=None, footer=None):
+ '''
+ Given a tree node (presumably the root), print it and all of its children.
+
+ use_html:
+ Generate a neat HTML page instead of plain text.
+ header:
+ This text goes at the top of the file, or just below the tag.
+ footer:
+ This text goes at the end of the file, or just above the tag.
+ '''
+ if depth == 0:
+ if use_html:
+ yield '\n'
+ yield HTML_TREE_HEAD
+ yield ''
+ if header is not None:
+ yield header
+
+ size = node.size
+ if size is None:
+ size = '???'
+ else:
+ size = bytestring.bytestring(size)
+
+ if use_html:
+ css_class = 'directory_even' if depth % 2 == 0 else 'directory_odd'
+ if node.item_type == 'directory':
+ directory_url = node.path
+ directory_anchor = '
→' if directory_url else ''
+ directory_anchor = directory_anchor.format(url=directory_url)
+ line = HTML_FORMAT_DIRECTORY.format(
+ css=css_class,
+ directory_anchor=directory_anchor,
+ name=node.display_name,
+ size=size,
+ )
+ else:
+ line = HTML_FORMAT_FILE.format(
+ name=node.display_name,
+ size=size,
+ url=node.path,
+ )
+ else:
+ line = '{space}{bar}{name} : ({size})'
+ line = line.format(
+ space='| ' * (depth-1),
+ bar='|---' if depth > 0 else '',
+ name=node.display_name,
+ size=size
+ )
+ yield line
+
+ # Sort by type (directories first) then subsort by lowercase path
+ customsort = lambda node: (
+ node.item_type == 'file',
+ node.path.lower(),
+ )
+
+ for child in node.list_children(sort=customsort):
+ yield from recursive_print_node(child, depth=depth+1, use_html=use_html)
+
+ if node.item_type == 'directory':
+ if use_html:
+ # Close the directory div
+ yield '