extend network protocol to stop clients from locking servers
now all repositories have capabilities slot, tuple with list of names.
if 'unbundle' capability present, repo supports push where client does
not need to lock server. repository classes that have unbundle capability
also have unbundle method.
implemented for ssh now, will be base for push over http.
unbundle protocol acts this way. server tells client what heads it
has during normal negotiate step. client starts unbundle by repeat
server's heads back to it. if server has new heads, abort immediately.
otherwise, transfer changes to server. once data transferred, server
locks and checks heads again. if heads same, changes can be added.
else someone else added heads, and server aborts.
if client wants to force server to add heads, sends special heads list of
'force'.
#!/bin/sh
mkdir test
cd test
hg init
for i in 0 1 2 3 4 5 6 7 8; do
echo $i >> foo
hg commit -A -m $i -d "1000000 0"
done
hg verify
hg serve -p 20059 -d --pid-file=hg.pid
cd ..
hg init new
# http incoming
http_proxy= hg -R new incoming http://localhost:20059/
# local incoming
hg -R new incoming test
# test with --bundle
http_proxy= hg -R new incoming --bundle test.hg http://localhost:20059/
hg -R new incoming --bundle test2.hg test
# test the resulting bundles
hg init temp
hg init temp2
hg -R temp unbundle test.hg
hg -R temp2 unbundle test2.hg
hg -R temp tip
hg -R temp2 tip
rm -rf temp temp2 new
# test outgoing
hg clone test test-dev
cd test-dev
for i in 9 10 11 12 13; do
echo $i >> foo
hg commit -A -m $i -d "1000000 0"
done
hg verify
cd ..
hg -R test-dev outgoing test
http_proxy= hg -R test-dev outgoing http://localhost:20059/
kill `cat test/hg.pid`