#require chg

  $ cp $HGRCPATH $HGRCPATH.orig

init repo

  $ chg init foo

  $ cd foo

ill-formed config

  $ chg status

  $ echo '=brokenconfig' >> $HGRCPATH

  $ chg status

  hg: parse error at * (glob)

  [255]

  $ cp $HGRCPATH.orig $HGRCPATH

long socket path

  $ sockpath=$TESTTMP/this/path/should/be/longer/than/one-hundred-and-seven/characters/where/107/is/the/typical/size/limit/of/unix-domain-socket

  $ mkdir -p $sockpath

  $ bakchgsockname=$CHGSOCKNAME

  $ CHGSOCKNAME=$sockpath/server

  $ export CHGSOCKNAME

  $ chg root

  $TESTTMP/foo

  $ rm -rf $sockpath

  $ CHGSOCKNAME=$bakchgsockname

  $ export CHGSOCKNAME

  $ cd ..

editor

------

  $ cat >> pushbuffer.py <<EOF

  > def reposetup(ui, repo):

  >     repo.ui.pushbuffer(subproc=True)

  > EOF

  $ chg init editor

  $ cd editor

by default, system() should be redirected to the client:

  $ touch foo

  $ CHGDEBUG= HGEDITOR=cat chg ci -Am channeled --edit 2>&1 \

  > | egrep "HG:|run 'cat"

  chg: debug: * run 'cat "*"' at '$TESTTMP/editor' (glob)

  HG: Enter commit message.  Lines beginning with 'HG:' are removed.

  HG: Leave message empty to abort commit.

  HG: --

  HG: user: test

  HG: branch 'default'

  HG: added foo

but no redirection should be made if output is captured:

  $ touch bar

  $ CHGDEBUG= HGEDITOR=cat chg ci -Am bufferred --edit \

  > --config extensions.pushbuffer="$TESTTMP/pushbuffer.py" 2>&1 \

  > | egrep "HG:|run 'cat"

  [1]

check that commit commands succeeded:

  $ hg log -T '{rev}:{desc}\n'

  1:bufferred

  0:channeled

  $ cd ..

pager

-----

  $ cat >> fakepager.py <<EOF

  > import sys

  > for line in sys.stdin:

  >     sys.stdout.write('paged! %r\n' % line)

  > EOF

enable pager extension globally, but spawns the master server with no tty:

  $ chg init pager

  $ cd pager

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > pager =

  > [pager]

  > EOF

  $ chg version > /dev/null

  $ touch foo

  $ chg ci -qAm foo

pager should be enabled if the attached client has a tty:

  $ chg log -l1 -q --config ui.formatted=True

  paged! '0:1f7b0de80e11\n'

  $ chg log -l1 -q --config ui.formatted=False

  0:1f7b0de80e11

chg waits for pager if runcommand raises

  $ cat > $TESTTMP/crash.py <<EOF

  > from mercurial import registrar

  > cmdtable = {}

  > command = registrar.command(cmdtable)

  > @command(b'crash')

  > def pagercrash(ui, repo, *pats, **opts):

  >     ui.write('going to crash\n')

  >     raise Exception('.')

  > EOF

  $ cat > $TESTTMP/fakepager.py <<EOF

  > from __future__ import absolute_import

  > import sys

  > import time

  > for line in iter(sys.stdin.readline, ''):

  >     if 'crash' in line: # only interested in lines containing 'crash'

  >         # if chg exits when pager is sleeping (incorrectly), the output

  >         # will be captured by the next test case

  >         time.sleep(1)

  >         sys.stdout.write('crash-pager: %s' % line)

  > EOF

  $ cat >> .hg/hgrc <<EOF

  > [extensions]

  > crash = $TESTTMP/crash.py

  > EOF

  $ chg crash --pager=on --config ui.formatted=True 2>/dev/null

  crash-pager: going to crash

  [255]

  $ cd ..

server lifecycle

----------------

chg server should be restarted on code change, and old server will shut down

automatically. In this test, we use the following time parameters:

 - "sleep 1" to make mtime different

 - "sleep 2" to notice mtime change (polling interval is 1 sec)

set up repository with an extension:

  $ chg init extreload

  $ cd extreload

  $ touch dummyext.py

  $ cat <<EOF >> .hg/hgrc

  > [extensions]

  > dummyext = dummyext.py

  > EOF

isolate socket directory for stable result:

  $ OLDCHGSOCKNAME=$CHGSOCKNAME

  $ mkdir chgsock

  $ CHGSOCKNAME=`pwd`/chgsock/server

warm up server:

  $ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'

  chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)

new server should be started if extension modified:

  $ sleep 1

  $ touch dummyext.py

  $ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'

  chg: debug: * instruction: unlink $TESTTMP/extreload/chgsock/server-* (glob)

  chg: debug: * instruction: reconnect (glob)

  chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)

old server will shut down, while new server should still be reachable:

  $ sleep 2

  $ CHGDEBUG= chg log 2>&1 | (egrep 'instruction|start' || true)

socket file should never be unlinked by old server:

(simulates unowned socket by updating mtime, which makes sure server exits

at polling cycle)

  $ ls chgsock/server-*

  chgsock/server-* (glob)

  $ touch chgsock/server-*

  $ sleep 2

  $ ls chgsock/server-*

  chgsock/server-* (glob)

since no server is reachable from socket file, new server should be started:

(this test makes sure that old server shut down automatically)

  $ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'

  chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)

shut down servers and restore environment:

  $ rm -R chgsock

  $ CHGSOCKNAME=$OLDCHGSOCKNAME

  $ cd ..