do not yield revs if the corresponding cl entry does not exists,
it avoids a race in the fastpath (where we walk in the filelog) with
an ongoing transaction.
existing clone code uses pull to get changes from remote repo. is very
slow, uses lots of memory and cpu.
new clone code has server write file data straight to client, client
writes file data straight to disk. memory and cpu used are very low,
clone is much faster over lan.
new client can still clone with pull, can still clone from older servers.
new server can still serve older clients.
A HTTP client can indicate that it doesn't support (or doesn't want)
persistent connections by sending this header.
This not only makes the server more compliant with the RFC, but also
reduces the run time of test-http-proxy when run with python 2.3 from
~125s to ~5s (it doesn't affect it with python 2.4, which was already
~5s).
first fix is to not store module objects in commands.external dict,
instead use module names for key into sys.modules. this prevents circular
reference during cleanup of aborted transaction.
second is to get name right during import of external module.
test timeout feature is needed for test with python 2.5 beta. if test
does not complete in time (30 seconds is default), it is killed.
some times daemon process used in test can be alive after the test
is killed by user or by timeout. tests now record daemon pids into
$DAEMON_PIDS and run-tests.py kills all living daemons after every test.
final little change is to add newline to end of pid file printed by
"hg serve", else "cat hg.pid >> $DAEMON_FILES" gives garbage.
The urllib2 differences between python 2.3 and 2.4 are hidden by
using keepalive.py, which also gives us support for persistent
connections.
Support for HTTPS is enabled only if there's a HTTPSHandler class in
urllib2.
It's not possible to have separate classes as handlers for HTTP and
HTTPS: to support persistent HTTPS connections, we need a class that
inherits from both keepalive.HTTPHandler and urllib2.HTTPSHandler. If
we try to pass (an instance of) this class and (an instance of) the
httphandler class to urllib2.build_opener, this function ends up getting
confused, since both classes are subclasses of the HTTPHandler default
handler, and raises an exception.
After the WSGI changes, even if a push over HTTP succeeds, apache
complains about "Premature end of script headers: hgwebdir.cgi" and
returns a "HTTP Error 500: Internal Server Error", making the local hg
abort.
The change to either of the files touched by this patch is enough to fix
this, but I think changing both is a more robust solution.
