revlog: fix revlogio.packentry corner case
We want to store version information about the revlog in the first
entry of its index. The code in packentry was using some heuristics
to detect whether this was the first entry, but these heuristics could
fail in some cases (e.g. rev 0 was empty; rev 1 descends directly from
the nullid and is stored as a delta).
We now give the revision number to packentry to avoid heuristics.
#!/bin/sh
mkdir repo
cd repo
hg init
echo foo > bar
hg add bar
hg commit -m "test" -d "0 0"
hg tip
cat > request.py <<EOF
from mercurial import dispatch
from mercurial.hgweb.hgweb_mod import hgweb
from mercurial.hgweb.request import _wsgirequest
from mercurial.ui import ui
from mercurial import hg
from StringIO import StringIO
import sys
class FileLike(object):
def __init__(self, real):
self.real = real
def fileno(self):
print >> sys.__stdout__, 'FILENO'
return self.real.fileno()
def read(self):
print >> sys.__stdout__, 'READ'
return self.real.read()
def readline(self):
print >> sys.__stdout__, 'READLINE'
return self.real.readline()
def isatty(self):
print >> sys.__stdout__, 'ISATTY'
return False
sys.stdin = FileLike(sys.stdin)
errors = StringIO()
input = StringIO()
output = StringIO()
def startrsp(headers, data):
print '---- HEADERS'
print headers
print '---- DATA'
print data
return output.write
env = {
'wsgi.version': (1, 0),
'wsgi.url_scheme': 'http',
'wsgi.errors': errors,
'wsgi.input': input,
'wsgi.multithread': False,
'wsgi.multiprocess': False,
'wsgi.run_once': False,
'REQUEST_METHOD': 'GET',
'SCRIPT_NAME': '',
'PATH_INFO': '',
'QUERY_STRING': '',
'SERVER_NAME': '127.0.0.1',
'SERVER_PORT': '20059',
'SERVER_PROTOCOL': 'HTTP/1.0'
}
_wsgirequest(hgweb('.'), env, startrsp)
print '---- ERRORS'
print errors.getvalue()
EOF
python request.py