contrib/undumprevlog

revset: use a baseset in _notpublic()

The '_notpublic()' internal revset was "returning" a set. That was wrong. We now
return a 'baseset' as appropriate. This has no effect on performance in most case,
because we do the exact same operation than what the combination with a
'fullreposet' was doing. This as a small effect on some operation when combined
with other set, because we now apply the filtering in all cases. I think the
correctness is worth the impact on some corner cases. The optimizer should take
care of these corner cases anyway.

revset #0: not public()
   plain         min           max           first         last          reverse
0) 0.000465      0.000491      0.000495      0.000500      0.000494      0.000479
1) 0.000484      0.000503      0.000498      0.000505      0.000504      0.000491

revset #1: (tip~1000::) - public()
   plain         min           max           first         last          reverse
0) 0.002765      0.001742      0.002767      0.001730      0.002761      0.002782
1) 0.002847      0.001777      0.002776      0.001741      0.002764      0.002858

revset #2: not public() and branch("default")
   plain         min           max           first         last          reverse
0) 0.012104      0.011138      0.011189      0.011138      0.011166      0.011578
1) 0.011387  94% 0.011738 105% 0.014220 127% 0.011223      0.011184      0.012077

revset #3: (not public() - obsolete())
   plain         min           max           first         last          reverse
0) 0.000583      0.000556      0.000552      0.000555      0.000552      0.000610
1) 0.000613 105% 0.000559      0.000557      0.000573      0.000558      0.000613

revset #4: head() - public()
   plain         min           max           first         last          reverse
0) 0.010869      0.010800      0.011547      0.010843      0.010891      0.010891
1) 0.011031      0.011497 106% 0.011087      0.011100      0.011100      0.011085

#!/usr/bin/env python
# Undump a dump from dumprevlog
# $ hg init
# $ undumprevlog < repo.dump

import sys
from mercurial import revlog, node, scmutil, util, transaction

for fp in (sys.stdin, sys.stdout, sys.stderr):
    util.setbinary(fp)

opener = scmutil.opener('.', 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()