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

  $ 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

  hg debugextensions

  show information about active extensions

  options:

  (some details hidden, use --verbose to show complete help)

  $ hg --verbose help debugextension

  hg debugextensions

  show information about active extensions

  options:

   -T --template TEMPLATE display with template (EXPERIMENTAL)

  global options ([+] can be repeated):

   -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

  $ hg --debug help debugextension

  hg debugextensions

  show information about active extensions

  options:

   -T --template TEMPLATE display with template (EXPERIMENTAL)

  global options ([+] can be repeated):

   -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

  $ 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