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| Path | Packages | |||
|---|---|---|---|---|
| M | mercurial/revlogutils/docket.py (6 lines) |
| Commit | Parents | Author | Summary | Date |
|---|---|---|---|---|
| e5b01e60b52c | 41b5e46a90ba | Gregory Szorc | Mar 1 2022, 11:37 PM |
| import os | import os | ||||
| import random | import random | ||||
| import struct | import struct | ||||
| from .. import ( | from .. import ( | ||||
| encoding, | encoding, | ||||
| error, | error, | ||||
| node, | node, | ||||
| pycompat, | |||||
| util, | util, | ||||
| ) | ) | ||||
| from . import ( | from . import ( | ||||
| constants, | constants, | ||||
| ) | ) | ||||
| # some basic circular sum hashing on 64 bits | # some basic circular sum hashing on 64 bits | ||||
| int_seed = 0 | int_seed = 0 | ||||
| low_mask = int('1' * 35, 2) | low_mask = int('1' * 35, 2) | ||||
| for i in iter_seed: | for i in iter_seed: | ||||
| high_part = int_seed >> 35 | high_part = int_seed >> 35 | ||||
| low_part = (int_seed & low_mask) << 28 | low_part = (int_seed & low_mask) << 28 | ||||
| int_seed = high_part + low_part + i | int_seed = high_part + low_part + i | ||||
| r = random.Random() | r = random.Random() | ||||
| if pycompat.ispy3: | |||||
| r.seed(int_seed, version=1) | r.seed(int_seed, version=1) | ||||
| else: | |||||
| r.seed(int_seed) | |||||
| # once we drop python 3.8 support we can simply use r.randbytes | # once we drop python 3.8 support we can simply use r.randbytes | ||||
| raw = r.getrandbits(id_size * 4) | raw = r.getrandbits(id_size * 4) | ||||
| assert id_size == 8 | assert id_size == 8 | ||||
| p = struct.pack('>L', raw) | p = struct.pack('>L', raw) | ||||
| new = node.hex(p) | new = node.hex(p) | ||||
| with open(stable_docket_file, 'wb') as f: | with open(stable_docket_file, 'wb') as f: | ||||
| f.write(new) | f.write(new) | ||||
| return new | return new | ||||