.

go/neo/t/zsha1.py

+#!/usr/bin/env python
+"""zsha1 - compute sha1 of whole latest objects stream in a ZODB database"""
+
+import zodbtools.util
+from ZODB.POSException import POSKeyError
+from ZODB.utils import p64, u64
+
+import hashlib
+import sys
+
+def main():
+    url = sys.argv[1]
+
+    stor = zodbtools.util.storageFromURL(url, read_only=True)
+    last_tid = stor.lastTransaction()
+    before = p64(u64(last_tid) + 1)
+
+    m = hashlib.sha1()
+
+    oid = 0
+    while 1:
+        try:
+            data, serial, _ = stor.loadBefore(p64(oid), before)
+        except POSKeyError:
+            break
+
+        #print('%s @%s' % (oid, u64(serial)))
+        m.update(data)
+
+        oid += 1
+
+    print('%s   ; oid=0..%d' % (m.hexdigest(), oid-1))
+
+
+if __name__ == '__main__':
+    main()