Test basic extension support

  $ cat > foobar.py <<EOF

  > import os

  > from mercurial import cmdutil, commands

  > cmdtable = {}

  > command = cmdutil.command(cmdtable)

  > def uisetup(ui):

  >     ui.write("uisetup called\\n")

  > def reposetup(ui, repo):

  >     ui.write("reposetup called for %s\\n" % os.path.basename(repo.root))

  >     ui.write("ui %s= repo.ui\\n" % (ui == repo.ui and "=" or "!"))

  > @command('foo', [], 'hg foo')

  > def foo(ui, *args, **kwargs):

  >     ui.write("Foo\\n")

  > @command('bar', [], 'hg bar', norepo=True)

  > def bar(ui, *args, **kwargs):

  >     ui.write("Bar\\n")

  > EOF

  $ abspath=`pwd`/foobar.py

  $ mkdir barfoo

  $ cp foobar.py barfoo/__init__.py

  $ barfoopath=`pwd`/barfoo

  $ hg init a

  $ cd a

  $ echo foo > file

  $ hg add file

  $ hg commit -m 'add file'

  $ echo '[extensions]' >> $HGRCPATH

  $ echo "foobar = $abspath" >> $HGRCPATH

  $ hg foo

  uisetup called

  reposetup called for a

  ui == repo.ui

  Foo

  $ cd ..

  $ hg clone a b

  uisetup called

  reposetup called for a

  ui == repo.ui

  reposetup called for b

  ui == repo.ui

  updating to branch default

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg bar

  uisetup called

  Bar

  $ echo 'foobar = !' >> $HGRCPATH

module/__init__.py-style

  $ echo "barfoo = $barfoopath" >> $HGRCPATH

  $ cd a

  $ hg foo

  uisetup called

  reposetup called for a

  ui == repo.ui

  Foo

  $ echo 'barfoo = !' >> $HGRCPATH

Check that extensions are loaded in phases:

  $ cat > foo.py <<EOF

  > import os

  > name = os.path.basename(__file__).rsplit('.', 1)[0]

  > print "1) %s imported" % name

  > def uisetup(ui):

  >     print "2) %s uisetup" % name

  > def extsetup():

  >     print "3) %s extsetup" % name

  > def reposetup(ui, repo):

  >    print "4) %s reposetup" % name

  > EOF

  $ cp foo.py bar.py

  $ echo 'foo = foo.py' >> $HGRCPATH

  $ echo 'bar = bar.py' >> $HGRCPATH

Command with no output, we just want to see the extensions loaded:

  $ hg paths

  1) foo imported

  1) bar imported

  2) foo uisetup

  2) bar uisetup

  3) foo extsetup

  3) bar extsetup

  4) foo reposetup

  4) bar reposetup

Check hgweb's load order:

  $ cat > hgweb.cgi <<EOF

  > #!/usr/bin/env python

  > from mercurial import demandimport; demandimport.enable()

  > from mercurial.hgweb import hgweb

  > from mercurial.hgweb import wsgicgi

  > application = hgweb('.', 'test repo')

  > wsgicgi.launch(application)

  > EOF

  $ REQUEST_METHOD='GET' PATH_INFO='/' SCRIPT_NAME='' QUERY_STRING='' \

  >    SERVER_PORT='80' SERVER_NAME='localhost' python hgweb.cgi \

  >    | grep '^[0-9]) ' # ignores HTML output

  1) foo imported

  1) bar imported

  2) foo uisetup

  2) bar uisetup

  3) foo extsetup

  3) bar extsetup

  4) foo reposetup

  4) bar reposetup

  4) foo reposetup

  4) bar reposetup

  $ echo 'foo = !' >> $HGRCPATH

  $ echo 'bar = !' >> $HGRCPATH

Check "from __future__ import absolute_import" support for external libraries

#if windows

  $ PATHSEP=";"

#else

  $ PATHSEP=":"

#endif

  $ export PATHSEP

  $ mkdir $TESTTMP/libroot

  $ echo "s = 'libroot/ambig.py'" > $TESTTMP/libroot/ambig.py

  $ mkdir $TESTTMP/libroot/mod

  $ touch $TESTTMP/libroot/mod/__init__.py

  $ echo "s = 'libroot/mod/ambig.py'" > $TESTTMP/libroot/mod/ambig.py

#if absimport

  $ cat > $TESTTMP/libroot/mod/ambigabs.py <<EOF

  > from __future__ import absolute_import

  > import ambig # should load "libroot/ambig.py"

  > s = ambig.s

  > EOF

  $ cat > loadabs.py <<EOF

  > import mod.ambigabs as ambigabs

  > def extsetup():

  >     print 'ambigabs.s=%s' % ambigabs.s

  > EOF

  $ (PYTHONPATH=${PYTHONPATH}${PATHSEP}${TESTTMP}/libroot; hg --config extensions.loadabs=loadabs.py root)

  ambigabs.s=libroot/ambig.py

  $TESTTMP/a (glob)

#endif

#if no-py3k

  $ cat > $TESTTMP/libroot/mod/ambigrel.py <<EOF

  > import ambig # should load "libroot/mod/ambig.py"

  > s = ambig.s

  > EOF

  $ cat > loadrel.py <<EOF

  > import mod.ambigrel as ambigrel

  > def extsetup():

  >     print 'ambigrel.s=%s' % ambigrel.s

  > EOF

  $ (PYTHONPATH=${PYTHONPATH}${PATHSEP}${TESTTMP}/libroot; hg --config extensions.loadrel=loadrel.py root)

  ambigrel.s=libroot/mod/ambig.py

  $TESTTMP/a (glob)

#endif

Check absolute/relative import of extension specific modules

  $ mkdir $TESTTMP/extroot

  $ cat > $TESTTMP/extroot/bar.py <<EOF

  > s = 'this is extroot.bar'

  > EOF

  $ mkdir $TESTTMP/extroot/sub1

  $ cat > $TESTTMP/extroot/sub1/__init__.py <<EOF

  > s = 'this is extroot.sub1.__init__'

  > EOF

  $ cat > $TESTTMP/extroot/sub1/baz.py <<EOF

  > s = 'this is extroot.sub1.baz'

  > EOF

  $ cat > $TESTTMP/extroot/__init__.py <<EOF

  > s = 'this is extroot.__init__'

  > import foo

  > def extsetup(ui):

  >     ui.write('(extroot) ', foo.func(), '\n')

  > EOF

  $ cat > $TESTTMP/extroot/foo.py <<EOF

  > # test absolute import

  > buf = []

  > def func():

  >     # "not locals" case

  >     import extroot.bar

  >     buf.append('import extroot.bar in func(): %s' % extroot.bar.s)

  >     return '\n(extroot) '.join(buf)

  > # "fromlist == ('*',)" case

  > from extroot.bar import *

  > buf.append('from extroot.bar import *: %s' % s)

  > # "not fromlist" and "if '.' in name" case

  > import extroot.sub1.baz

  > buf.append('import extroot.sub1.baz: %s' % extroot.sub1.baz.s)

  > # "not fromlist" and NOT "if '.' in name" case

  > import extroot

  > buf.append('import extroot: %s' % extroot.s)

  > # NOT "not fromlist" and NOT "level != -1" case

  > from extroot.bar import s

  > buf.append('from extroot.bar import s: %s' % s)

  > EOF

  $ hg --config extensions.extroot=$TESTTMP/extroot root

  (extroot) from extroot.bar import *: this is extroot.bar

  (extroot) import extroot.sub1.baz: this is extroot.sub1.baz

  (extroot) import extroot: this is extroot.__init__

  (extroot) from extroot.bar import s: this is extroot.bar

  (extroot) import extroot.bar in func(): this is extroot.bar

  $TESTTMP/a (glob)

#if no-py3k

  $ rm "$TESTTMP"/extroot/foo.*

  $ cat > $TESTTMP/extroot/foo.py <<EOF

  > # test relative import

  > buf = []

  > def func():

  >     # "not locals" case

  >     import bar

  >     buf.append('import bar in func(): %s' % bar.s)

  >     return '\n(extroot) '.join(buf)

  > # "fromlist == ('*',)" case

  > from bar import *

  > buf.append('from bar import *: %s' % s)

  > # "not fromlist" and "if '.' in name" case

  > import sub1.baz

  > buf.append('import sub1.baz: %s' % sub1.baz.s)

  > # "not fromlist" and NOT "if '.' in name" case

  > import sub1

  > buf.append('import sub1: %s' % sub1.s)

  > # NOT "not fromlist" and NOT "level != -1" case

  > from bar import s

  > buf.append('from bar import s: %s' % s)

  > EOF

  $ hg --config extensions.extroot=$TESTTMP/extroot root

  (extroot) from bar import *: this is extroot.bar

  (extroot) import sub1.baz: this is extroot.sub1.baz

  (extroot) import sub1: this is extroot.sub1.__init__

  (extroot) from bar import s: this is extroot.bar

  (extroot) import bar in func(): this is extroot.bar

  $TESTTMP/a (glob)

#endif

  $ cd ..

hide outer repo

  $ hg init

  $ cat > empty.py <<EOF

  > '''empty cmdtable

  > '''

  > cmdtable = {}

  > EOF

  $ emptypath=`pwd`/empty.py

  $ echo "empty = $emptypath" >> $HGRCPATH

  $ hg help empty

  empty extension - empty cmdtable

  no commands defined

  $ echo 'empty = !' >> $HGRCPATH

  $ cat > debugextension.py <<EOF

  > '''only debugcommands

  > '''

  > from mercurial import cmdutil

  > cmdtable = {}

  > command = cmdutil.command(cmdtable)

  > @command('debugfoobar', [], 'hg debugfoobar')

  > def debugfoobar(ui, repo, *args, **opts):

  >     "yet another debug command"

  >     pass

  > @command('foo', [], 'hg foo')

  > def foo(ui, repo, *args, **opts):

  >     """yet another foo command

  >     This command has been DEPRECATED since forever.

  >     """

  >     pass

  > EOF

  $ debugpath=`pwd`/debugextension.py

  $ echo "debugextension = $debugpath" >> $HGRCPATH

  $ hg help debugextension

  debugextension extension - only debugcommands

  no commands defined

  $ hg --verbose help debugextension

  debugextension extension - only debugcommands

  list of commands:

   foo           yet another foo command

  global options:

   -R --repository REPO   repository root directory or name of overlay bundle

                          file

      --cwd DIR           change working directory

   -y --noninteractive    do not prompt, automatically pick the first choice for

                          all prompts

   -q --quiet             suppress output

   -v --verbose           enable additional output

      --config CONFIG [+] set/override config option (use 'section.name=value')

      --debug             enable debugging output

      --debugger          start debugger

      --encoding ENCODE   set the charset encoding (default: ascii)

      --encodingmode MODE set the charset encoding mode (default: strict)

      --traceback         always print a traceback on exception

      --time              time how long the command takes

      --profile           print command execution profile

      --version           output version information and exit

   -h --help              display help and exit

      --hidden            consider hidden changesets

  [+] marked option can be specified multiple times

  $ hg --debug help debugextension

  debugextension extension - only debugcommands

  list of commands:

   debugfoobar   yet another debug command

   foo           yet another foo command

  global options:

   -R --repository REPO   repository root directory or name of overlay bundle

                          file

      --cwd DIR           change working directory

   -y --noninteractive    do not prompt, automatically pick the first choice for

                          all prompts

   -q --quiet             suppress output

   -v --verbose           enable additional output

      --config CONFIG [+] set/override config option (use 'section.name=value')

      --debug             enable debugging output

      --debugger          start debugger

      --encoding ENCODE   set the charset encoding (default: ascii)

      --encodingmode MODE set the charset encoding mode (default: strict)

      --traceback         always print a traceback on exception

      --time              time how long the command takes

      --profile           print command execution profile

      --version           output version information and exit

   -h --help              display help and exit

      --hidden            consider hidden changesets

  [+] marked option can be specified multiple times

  $ echo 'debugextension = !' >> $HGRCPATH

Extension module help vs command help:

  $ echo 'extdiff =' >> $HGRCPATH

  $ hg help extdiff

  hg extdiff [OPT]... [FILE]...

  use external program to diff repository (or selected files)

      Show differences between revisions for the specified files, using an

      external program. The default program used is diff, with default options

      "-Npru".

      To select a different program, use the -p/--program option. The program

      will be passed the names of two directories to compare. To pass additional

      options to the program, use -o/--option. These will be passed before the