Mercurial > hg
view contrib/undumprevlog @ 31763:8a0c47982ade
test-revlog-raw: fix "genbits" implementation
The "genbits" implementation is actually incorrect. This patch fixes it. A
good "genbits" implementation should pass the below assertion:
n = 3 # or other number
l = list(genbits(n))
assert 2**(n*2) == len(set((l[i]<<n)+l[i+1] for i in range(len(l)-1)))
An assertion is added to make sure "genbits" won't work unexpectedly.
author | Jun Wu <quark@fb.com> |
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date | Sun, 02 Apr 2017 18:12:47 -0700 |
parents | 8d3e8c8c9049 |
children | 5d9890d8ca77 |
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#!/usr/bin/env python # Undump a dump from dumprevlog # $ hg init # $ undumprevlog < repo.dump from __future__ import absolute_import import sys from mercurial import ( node, revlog, transaction, util, vfs as vfsmod, ) for fp in (sys.stdin, sys.stdout, sys.stderr): util.setbinary(fp) opener = vfsmod.vfs('.', False) tr = transaction.transaction(sys.stderr.write, opener, {'store': opener}, "undump.journal") while True: l = sys.stdin.readline() if not l: break if l.startswith("file:"): f = l[6:-1] r = revlog.revlog(opener, f) print f elif l.startswith("node:"): n = node.bin(l[6:-1]) elif l.startswith("linkrev:"): lr = int(l[9:-1]) elif l.startswith("parents:"): p = l[9:-1].split() p1 = node.bin(p[0]) p2 = node.bin(p[1]) elif l.startswith("length:"): length = int(l[8:-1]) sys.stdin.readline() # start marker d = sys.stdin.read(length) sys.stdin.readline() # end marker r.addrevision(d, tr, lr, p1, p2) tr.close()