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
hg init a
cd a
echo a > a
hg ci -A -d'1 0' -m a
cd ..
hg init b
cd b
echo b > b
hg ci -A -d'1 0' -m b
cd ..
hg clone a c
cd c
hg pull -f ../b
HGMERGE=merge hg merge
cd ..
echo %% -R/--repository
hg -R a tip
hg --repository b tip
echo %% abbrev of long option
hg --repo c tip
echo %% --cwd
hg --cwd a parents
echo %% -y/--noninteractive - just be sure it is parsed
hg --cwd a tip -q --noninteractive
hg --cwd a tip -q -y
echo %% -q/--quiet
hg -R a -q tip
hg -R b -q tip
hg -R c --quiet parents
echo %% -v/--verbose
hg --cwd c head -v
hg --cwd b tip --verbose
echo %% --config
hg --cwd c --config paths.quuxfoo=bar paths | grep -q quuxfoo && echo quuxfoo
hg --cwd c --config '' tip -q
hg --cwd c --config a.b tip -q
hg --cwd c --config a tip -q
hg --cwd c --config a.= tip -q
hg --cwd c --config .b= tip -q
echo %% --debug
hg --cwd c log --debug
echo %% --traceback
hg --cwd c --config x --traceback tip 2>&1 | grep -i 'traceback'
echo %% --time
hg --cwd a --time tip 2>&1 | grep '^Time:' | sed 's/[0-9][0-9]*/x/g'
echo %% --version
hg --version -q | sed 's/version \([a-f0-9+]*\|unknown\)/version xxx/'
echo %% -h/--help
hg -h
hg --help
echo %% not tested: --debugger