91 lines
2.2 KiB
Python
91 lines
2.2 KiB
Python
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class File:
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def __init__(self, name: str, size: int):
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self.name = name
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self.size = size
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self.parent = None
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def __str__(self):
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return self.name
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class Dir:
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def __init__(self, name: str):
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self.name = name
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self.contents = []
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self.parent = None
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def __str__(self):
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return self.name
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def add(self, thing):
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thing.parent = self
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self.contents.append(thing)
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def get_dir(self, name: str):
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for thing in self.contents:
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if isinstance(thing, Dir) and thing.name == name:
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return thing
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return None
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@property
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def size(self):
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return sum([thing.size for thing in self.contents])
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def parse_commands_to_tree(commands):
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listing_contents = False
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root = Dir("")
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cur_dir = root
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for line in commands:
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if not line.split():
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continue
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words = line.split()
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if words[0] == "$":
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listing_contents = False
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command = words[1]
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try:
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arg = words[2]
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except IndexError:
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arg = ""
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if command == "cd":
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if arg == "..":
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cur_dir = cur_dir.parent
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elif arg == ".":
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continue
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else:
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if not cur_dir.get_dir(arg):
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cur_dir.add(Dir(name=arg))
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cur_dir = cur_dir.get_dir(arg)
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elif command == "ls":
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listing_contents = True
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elif listing_contents:
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dir_or_size, name = words
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if dir_or_size == "dir":
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cur_dir.add(Dir(name=name))
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else:
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cur_dir.add(File(name=name, size=int(dir_or_size)))
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else:
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raise Exception(f"Unknown command: {line}")
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return root
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def print_tree(tree):
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output = []
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def parse_directory(directory, depth):
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for thing in directory.contents:
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output.append("{}{} ({})".format(depth * 2 * " ", thing.name, thing.size))
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if isinstance(thing, Dir):
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parse_directory(thing, depth + 1)
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parse_directory(tree, 1)
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print("\n".join(output))
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