view tests/test-extension.t @ 13826:e574207e3bcd

url: refactor util.drop_scheme() and hg.localpath() into url.localpath()

This replaces util.drop_scheme() with url.localpath(), using url.url for
parsing instead of doing it on its own. The function is moved from
util to url to avoid an import cycle.

hg.localpath() is removed in favor of using url.localpath(). This
provides more consistent behavior between "hg clone" and other
commands.

To preserve backwards compatibility, URLs like bundle://../foo still
refer to ../foo, not /foo.

If a URL contains a scheme, percent-encoded entities are decoded. When
there's no scheme, all characters are left untouched.

Comparison of old and new behaviors:

URL                      drop_scheme()   hg.localpath()    url.localpath()
===                      =============   ==============    ===============
file://foo/foo           /foo            foo/foo           /foo
file://localhost:80/foo  /foo            localhost:80/foo  /foo
file://localhost:/foo    /foo            localhost:/foo    /foo
file://localhost/foo     /foo            /foo              /foo
file:///foo              /foo            /foo              /foo
file://foo               (empty string)  foo               /
file:/foo                /foo            /foo              /foo
file:foo                 foo             foo               foo
file:foo%23bar           foo%23bar       foo%23bar         foo#bar
foo%23bar                foo%23bar       foo%23bar         foo%23bar
/foo                     /foo            /foo              /foo

Windows-related paths on Windows:

URL                      drop_scheme()   hg.localpath()    url.localpath()
===                      =============   ==============    ===============
file:///C:/foo           C:/C:/foo       /C:/foo           C:/foo
file:///D:/foo           C:/D:/foo       /D:/foo           D:/foo
file://C:/foo            C:/foo          C:/foo            C:/foo
file://D:/foo            C:/foo          D:/foo            D:/foo
file:////foo/bar         //foo/bar       //foo/bar         //foo/bar
//foo/bar                //foo/bar       //foo/bar         //foo/bar
\\foo\bar                //foo/bar       //foo/bar         \\foo\bar

Windows-related paths on other platforms:

file:///C:/foo           C:/C:/foo       /C:/foo           C:/foo
file:///D:/foo           C:/D:/foo       /D:/foo           D:/foo
file://C:/foo            C:/foo          C:/foo            C:/foo
file://D:/foo            C:/foo          D:/foo            D:/foo
file:////foo/bar         //foo/bar       //foo/bar         //foo/bar
//foo/bar                //foo/bar       //foo/bar         //foo/bar
\\foo\bar                //foo/bar       //foo/bar         \\foo\bar

For more information about file:// URL handling, see:
http://www-archive.mozilla.org/quality/networking/testing/filetests.html

Related issues:

- issue1153: File URIs aren't handled correctly in windows

  This patch should preserve the fix implemented in
  2770d03ae49f. However, it goes a step further and "promotes"
  Windows-style drive letters from being interpreted as host names to
  being part of the path.

- issue2154: Cannot escape '#' in Mercurial URLs (#1172 in THG)

  The fragment is still interpreted as a revision or a branch, even in
  paths to bundles. However, when file: is used, percent-encoded
  entities are decoded, so file:test%23bundle.hg can refer to
  test#bundle.hg ond isk.

Test basic extension support

  $ "$TESTDIR/hghave" no-outer-repo || exit 80

  $ cat > foobar.py <<EOF
  > import os
  > from mercurial import commands
  > 
  > 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 "!"))
  > 
  > def foo(ui, *args, **kwargs):
  >     ui.write("Foo\\n")
  > 
  > def bar(ui, *args, **kwargs):
  >     ui.write("Bar\\n")
  > 
  > cmdtable = {
  >    "foo": (foo, [], "hg foo"),
  >    "bar": (bar, [], "hg bar"),
  > }
  > 
  > commands.norepo += ' bar'
  > 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

  $ SCRIPT_NAME='/' 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

  $ cd ..

  $ 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
  > '''
  > def debugfoobar(ui, repo, *args, **opts):
  >     "yet another debug command"
  >     pass
  > 
  > def foo(ui, repo, *args, **opts):
  >     """yet another foo command
  > 
  >     This command has been DEPRECATED since forever.
  >     """
  >     pass
  > 
  > cmdtable = {
  >    "debugfoobar": (debugfoobar, (), "hg debugfoobar"),
  >    "foo": (foo, (), "hg foo")
  > }
  > 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, assume 'yes' for any required answers
   -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
  
  [+] 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, assume 'yes' for any required answers
   -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
  
  [+] marked option can be specified multiple times
  $ echo 'debugextension = !' >> $HGRCPATH

Issue811: Problem loading extensions twice (by site and by user)

  $ debugpath=`pwd`/debugissue811.py
  $ cat > debugissue811.py <<EOF
  > '''show all loaded extensions
  > '''
  > from mercurial import extensions, commands
  > 
  > def debugextensions(ui):
  >     "yet another debug command"
  >     ui.write("%s\n" % '\n'.join([x for x, y in extensions.extensions()]))
  > 
  > cmdtable = {"debugextensions": (debugextensions, (), "hg debugextensions")}
  > commands.norepo += " debugextensions"
  > EOF
  $ echo "debugissue811 = $debugpath" >> $HGRCPATH
  $ echo "mq=" >> $HGRCPATH
  $ echo "hgext.mq=" >> $HGRCPATH
  $ echo "hgext/mq=" >> $HGRCPATH

Show extensions:

  $ hg debugextensions
  debugissue811
  mq

Disabled extension commands:

  $ HGRCPATH=
  $ export HGRCPATH
  $ hg help email
  'email' is provided by the following extension:
  
      patchbomb  command to send changesets as (a series of) patch emails
  
  use "hg help extensions" for information on enabling extensions
  $ hg qdel
  hg: unknown command 'qdel'
  'qdelete' is provided by the following extension:
  
      mq  manage a stack of patches
  
  use "hg help extensions" for information on enabling extensions
  [255]
  $ hg churn
  hg: unknown command 'churn'
  'churn' is provided by the following extension:
  
      churn  command to display statistics about repository history
  
  use "hg help extensions" for information on enabling extensions
  [255]

Disabled extensions:

  $ hg help churn
  churn extension - command to display statistics about repository history
  
  use "hg help extensions" for information on enabling extensions
  $ hg help patchbomb
  patchbomb extension - command to send changesets as (a series of) patch emails
  
  use "hg help extensions" for information on enabling extensions

Broken disabled extension and command:

  $ mkdir hgext
  $ echo > hgext/__init__.py
  $ cat > hgext/broken.py <<EOF
  > "broken extension'
  > EOF
  $ cat > path.py <<EOF
  > import os, sys
  > sys.path.insert(0, os.environ['HGEXTPATH'])
  > EOF
  $ HGEXTPATH=`pwd`
  $ export HGEXTPATH

  $ hg --config extensions.path=./path.py help broken
  broken extension - (no help text available)
  
  use "hg help extensions" for information on enabling extensions

  $ cat > hgext/forest.py <<EOF
  > cmdtable = None
  > EOF
  $ hg --config extensions.path=./path.py help foo > /dev/null
  warning: error finding commands in $TESTTMP/hgext/forest.py
  hg: unknown command 'foo'
  warning: error finding commands in $TESTTMP/hgext/forest.py
  [255]