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https://github.com/bottlesdevs/Bottles.git
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mirkobrombin
71 lines
2.0 KiB
Python
71 lines
2.0 KiB
Python
import os
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import hashlib
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class Diff:
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"""
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This class is no more used by the application, it's just a
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reference for future implementations.
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"""
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__ignored = ["dosdevices", "users", "bottle.yml", "storage"]
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@staticmethod
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def hashify(path: str) -> dict:
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"""
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Hash (SHA-1) all files in a directory and return
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them in a dictionary. Here we use SHA-1 instead of
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better ones like SHA-256 because we only need to
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compare the file hashes, it's faster, and it's
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not a security risk.
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"""
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_files = {}
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if path[-1] != os.sep:
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"""
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Be sure to add a trailing slash at the end of the path to
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prevent the correct path name in the result.
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"""
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path += os.sep
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for root, dirs, files in os.walk(path):
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dirs[:] = [d for d in dirs if d not in Diff.__ignored]
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for f in files:
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if f in Diff.__ignored:
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continue
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with open(os.path.join(root, f), "rb") as fr:
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_hash = hashlib.sha1(fr.read()).hexdigest()
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_key = os.path.join(root, f)
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_key = _key.replace(path, "")
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_files[_key] = _hash
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return _files
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@staticmethod
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def file_hashify(path: str) -> str:
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"""Hash (SHA-1) a file and return it."""
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with open(path, "rb") as fr:
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_hash = hashlib.sha1(fr.read()).hexdigest()
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return _hash
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@staticmethod
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def compare(parent: dict, child: dict) -> dict:
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"""
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Compare two hashes dictionaries and return the
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differences (added, removed, changed).
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"""
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added = []
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changed = []
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removed = [f for f in parent if f not in child]
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for f in child:
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if f not in parent:
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added.append(f)
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elif parent[f] != child[f]:
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changed.append(f)
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return {"added": added, "removed": removed, "changed": changed}
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