add python/hash_file.py

python/hash_file.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+
+
+import hashlib
+
+
+
+def get_hash(file_path=None, data=None, algo="sha1"):
+    # https://stackoverflow.com/questions/22058048/hashing-a-file-in-python
+    hash_func = getattr(hashlib, algo)
+    if data:
+        return hash_func(data).digest()
+    assert file_path
+    # BUF_SIZE is totally arbitrary, change for your app!
+    BUF_SIZE = 65536  # lets read stuff in 64kb chunks!
+    hash = hash_func()
+    with open(file_path, 'rb') as f:
+        while data := f.read(BUF_SIZE):
+            #md5.update(data)
+            hash.update(data)
+    #return hash.digest()
+    #return hash.digest().hex()
+    return hash.hexdigest()
+
+
+
+if __name__ == "__main__":
+    import sys
+    file_path = sys.argv[1]
+    hash = get_hash(file_path)
+    print(f"{hash}  {file_path}")