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 add a
echo line 1 > b
echo line 2 >> b
hg commit -l b -d '1000000 0' -u 'User Name <user@hostname>'
hg add b
echo other 1 > c
echo other 2 >> c
echo >> c
echo other 3 >> c
hg commit -l c -d '1100000 0' -u 'A. N. Other <other@place>'
hg add c
hg commit -m 'no person' -d '1200000 0' -u 'other@place'
echo c >> c
hg commit -m 'no user, no domain' -d '1300000 0' -u 'person'
# make sure user/global hgrc does not affect tests
echo '[ui]' > .hg/hgrc
echo 'logtemplate =' >> .hg/hgrc
echo 'style =' >> .hg/hgrc
echo '# default style is like normal output'
hg log > log.out
hg log --style default > style.out
diff log.out style.out
hg log -v > log.out
hg log -v --style default > style.out
diff log.out style.out
hg log --debug > log.out
hg log --debug --style default > style.out
diff log.out style.out
echo '# compact style works'
hg log --style compact
hg log -v --style compact
hg log --debug --style compact
echo '# error if style not readable'
touch q
chmod 0 q
hg log --style ./q
echo '# error if no style'
hg log --style notexist
echo '# error if style missing key'
echo 'q = q' > t
hg log --style ./t
echo '# error if include fails'
echo 'changeset = q' >> t
hg log --style ./t
echo '# include works'
rm -f q
echo '{rev}' > q
hg log --style ./t
echo '# ui.style works'
echo '[ui]' > .hg/hgrc
echo 'style = t' >> .hg/hgrc
hg log
echo "# keys work"
for key in author branches date desc file_adds file_dels files \
manifest node parents rev tags; do
for mode in '' --verbose --debug; do
hg log $mode --template "$key$mode: {$key}\n"
done
done
echo '# filters work'
hg log --template '{author|domain}\n'
hg log --template '{author|person}\n'
hg log --template '{author|user}\n'
hg log --template '{date|age}\n' > /dev/null || exit 1
hg log --template '{date|date}\n'
hg log --template '{date|isodate}\n'
hg log --template '{date|rfc822date}\n'
hg log --template '{desc|firstline}\n'
hg log --template '{node|short}\n'
echo '# error on syntax'
echo 'x = "f' >> t
hg log
echo '# done'