view contrib/dumprevlog @ 24320:b9f7f3eeb99c

localrepo: extend "changeid in repo" to return True for workingctx revision

This is necessary to implement "wc" symbol for workingctx, that will be used
as follows:

    $ hg annotate -r wc FILE

In principle, "rev in repo" should be True if "repo[rev]" can return a context
object. But when it was implemented by ea3acaae25bb, lookup() had a long logic
to map all sorts of changeids to nodes, and "None in repo" did crash because
lookup() could not accept None. So I assume that the case of changeid=None was
not considered.

Now "None in repo" doesn't crash, it should be True for workingctx revision.

Behavior of "changeid in repo":

    revision    "null"  existing rev  None (workingctx)
    ----------  ------  ------------  -----------------
    original*   True    True          TypeError
    current     True    True          False
    this patch  True    True          True

    (*original: ea3acaae25bb)

#!/usr/bin/env python
# Dump revlogs as raw data stream
# $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump

import sys
from mercurial import revlog, node, util

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

for f in sys.argv[1:]:
    binopen = lambda fn: open(fn, 'rb')
    r = revlog.revlog(binopen, f)
    print "file:", f
    for i in r:
        n = r.node(i)
        p = r.parents(n)
        d = r.revision(n)
        print "node:", node.hex(n)
        print "linkrev:", r.linkrev(i)
        print "parents:", node.hex(p[0]), node.hex(p[1])
        print "length:", len(d)
        print "-start-"
        print d
        print "-end-"