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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from warnings import warn
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from bzrlib import (
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from bzrlib.hooks import Hooks
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from bzrlib.i18n import gettext
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from bzrlib.hooks import HookPoint, Hooks
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# Compatibility - Option used to be in commands.
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from bzrlib.option import Option
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from bzrlib.plugin import disable_plugins, load_plugins
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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class CommandInfo(object):
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summary, then a complete description of the command. A grammar
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description will be inserted.
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:cvar aliases: Other accepted names for this command.
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:cvar takes_args: List of argument forms, marked with whether they are
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optional, repeated, etc. Examples::
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['to_location', 'from_branch?', 'file*']
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* 'to_location' is required
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* 'from_branch' is optional
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* 'file' can be specified 0 or more times
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:cvar takes_options: List of options that may be given for this command.
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These can be either strings, referring to globally-defined options, or
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option objects. Retrieve through options().
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:cvar hidden: If true, this command isn't advertised. This is typically
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Other accepted names for this command.
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List of argument forms, marked with whether they are optional,
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['to_location', 'from_branch?', 'file*']
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'to_location' is required
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'from_branch' is optional
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'file' can be specified 0 or more times
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List of options that may be given for this command. These can
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be either strings, referring to globally-defined options,
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or option objects. Retrieve through options().
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If true, this command isn't advertised. This is typically
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for commands intended for expert users.
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:cvar encoding_type: Command objects will get a 'outf' attribute, which has
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been setup to properly handle encoding of unicode strings.
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encoding_type determines what will happen when characters cannot be
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* strict - abort if we cannot decode
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* replace - put in a bogus character (typically '?')
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* exact - do not encode sys.stdout
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NOTE: by default on Windows, sys.stdout is opened as a text stream,
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therefore LF line-endings are converted to CRLF. When a command uses
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encoding_type = 'exact', then sys.stdout is forced to be a binary
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stream, and line-endings will not mangled.
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A string indicating the real name under which this command was
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invoked, before expansion of aliases.
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(This may be None if the command was constructed and run in-process.)
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Command objects will get a 'outf' attribute, which has been
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setup to properly handle encoding of unicode strings.
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encoding_type determines what will happen when characters cannot
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strict - abort if we cannot decode
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replace - put in a bogus character (typically '?')
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exact - do not encode sys.stdout
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NOTE: by default on Windows, sys.stdout is opened as a text
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stream, therefore LF line-endings are converted to CRLF.
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When a command uses encoding_type = 'exact', then
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sys.stdout is forced to be a binary stream, and line-endings
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:cvar hooks: An instance of CommandHooks.
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:cvar __doc__: The help shown by 'bzr help command' for this command.
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This is set by assigning explicitly to __doc__ so that -OO can
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__doc__ = "My help goes here"
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takes_options = []
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encoding_type = 'strict'
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def __init__(self):
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"""Construct an instance of this command."""
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if self.__doc__ == Command.__doc__:
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warn("No help message set for %r" % self)
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# List of standard options directly supported
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self.supported_std_options = []
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self._setup_run()
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usage help (e.g. Purpose, Usage, Options) with a
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message explaining how to obtain full help.
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i18n.install() # Install i18n only for get_help_text for now.
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doc = self.help()
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# Note: If self.gettext() translates ':Usage:\n', the section will
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# be shown after "Description" section and we don't want to
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# translate the usage string.
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# Though, bzr export-pot don't exports :Usage: section and it must
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doc = self.gettext(doc)
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doc = gettext("No help for this command.")
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raise NotImplementedError("sorry, no detailed help yet for %r" % self.name())
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# Extract the summary (purpose) and sections out from the text
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purpose,sections,order = self._get_help_parts(doc)
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# XXX: optparse implicitly rewraps the help, and not always perfectly,
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# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
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parser = option.get_optparser(self.options())
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options = parser.format_option_help()
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# FIXME: According to the spec, ReST option lists actually don't
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# support options like --1.14 so that causes syntax errors (in Sphinx
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# at least). As that pattern always appears in the commands that
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# break, we trap on that and then format that block of 'format' options
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# as a literal block. We use the most recent format still listed so we
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# don't have to do that too often -- vila 20110514
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if not plain and options.find(' --1.14 ') != -1:
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options = option.get_optparser(self.options()).format_option_help()
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# XXX: According to the spec, ReST option lists actually don't support
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# options like --1.9 so that causes syntax errors (in Sphinx at least).
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# As that pattern always appears in the commands that break, we trap
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# on that and then format that block of 'format' options as a literal
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if not plain and options.find(' --1.9 ') != -1:
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options = options.replace(' format:\n', ' format::\n\n', 1)
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if options.startswith('Options:'):
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result += gettext(':Options:%s') % (options[len('options:'):],)
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result += ':' + options
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elif options.startswith('options:'):
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# Python 2.4 version of optparse
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result += ':Options:' + options[len('options:'):]
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result += options
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if sections.has_key(None):
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text = sections.pop(None)
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text = '\n '.join(text.splitlines())
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result += gettext(':Description:\n %s\n\n') % (text,)
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result += ':%s:\n %s\n\n' % ('Description',text)
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# Add the custom sections (e.g. Examples). Note that there's no need
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# to indent these as they must be indented already in the source.
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for label in order:
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if label in sections:
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result += ':%s:\n%s\n' % (label, sections[label])
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if sections.has_key(label):
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result += ':%s:\n%s\n' % (label,sections[label])
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result += (gettext("See bzr help %s for more details and examples.\n\n")
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result += ("See bzr help %s for more details and examples.\n\n"
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# Add the aliases, source (plug-in) and see also links, if any
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result += gettext(':Aliases: ')
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result += ':Aliases: '
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result += ', '.join(self.aliases) + '\n'
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plugin_name = self.plugin_name()
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if plugin_name is not None:
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result += gettext(':From: plugin "%s"\n') % plugin_name
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result += ':From: plugin "%s"\n' % plugin_name
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see_also = self.get_see_also(additional_see_also)
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if not plain and see_also_as_links:
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see_also_links.append(item)
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# Use a Sphinx link for this entry
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link_text = gettext(":doc:`{0} <{1}-help>`").format(
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link_text = ":doc:`%s <%s-help>`" % (item, item)
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see_also_links.append(link_text)
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see_also = see_also_links
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result += gettext(':See also: %s') % ', '.join(see_also) + '\n'
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result += ':See also: '
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result += ', '.join(see_also) + '\n'
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# If this will be rendered as plain text, convert it
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def run_argv_aliases(self, argv, alias_argv=None):
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"""Parse the command line and run with extra aliases in alias_argv."""
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args, opts = parse_args(self, argv, alias_argv)
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# Process the standard options
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if 'help' in opts: # e.g. bzr add --help
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self.outf.write(self.get_help_text())
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sys.stdout.write(self.get_help_text())
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if 'usage' in opts: # e.g. bzr add --usage
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self.outf.write(self.get_help_text(verbose=False))
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sys.stdout.write(self.get_help_text(verbose=False))
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trace.set_verbosity_level(option._verbosity_level)
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if 'verbose' in self.supported_std_options:
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all_cmd_args = cmdargs.copy()
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all_cmd_args.update(cmdopts)
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return self.run(**all_cmd_args)
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# reset it, so that other commands run in the same process won't
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# inherit state. Before we reset it, log any activity, so that it
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# gets properly tracked.
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ui.ui_factory.log_transport_activity(
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display=('bytes' in debug.debug_flags))
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trace.set_verbosity_level(0)
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return self.run(**all_cmd_args)
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def _setup_run(self):
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"""Wrap the defined run method on self with a cleanup.
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These are all empty initially, because by default nothing should get
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Hooks.__init__(self, "bzrlib.commands", "Command.hooks")
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self.add_hook('extend_command',
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self.create_hook(HookPoint('extend_command',
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"Called after creating a command object to allow modifications "
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"such as adding or removing options, docs etc. Called with the "
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"new bzrlib.commands.Command object.", (1, 13))
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self.add_hook('get_command',
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"new bzrlib.commands.Command object.", (1, 13), None))
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self.create_hook(HookPoint('get_command',
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"Called when creating a single command. Called with "
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"(cmd_or_None, command_name). get_command should either return "
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"the cmd_or_None parameter, or a replacement Command object that "
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"should be used for the command. Note that the Command.hooks "
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"hooks are core infrastructure. Many users will prefer to use "
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"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
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self.add_hook('get_missing_command',
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self.create_hook(HookPoint('get_missing_command',
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"Called when creating a single command if no command could be "
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"found. Called with (command_name). get_missing_command should "
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"either return None, or a Command object to be used for the "
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self.add_hook('list_commands',
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"command.", (1, 17), None))
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self.create_hook(HookPoint('list_commands',
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"Called when enumerating commands. Called with a set of "
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"cmd_name strings for all the commands found so far. This set "
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" is safe to mutate - e.g. to remove a command. "
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"list_commands should return the updated set of command names.",
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Command.hooks = CommandHooks()
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# for python 2.5 and later, optparse raises this exception if a non-ascii
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# option name is given. See http://bugs.python.org/issue2931
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options, args = parser.parse_args(args)
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except UnicodeEncodeError,e:
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raise errors.BzrCommandError(
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gettext('Only ASCII permitted in option names'))
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options, args = parser.parse_args(args)
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opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
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v is not option.OptionParser.DEFAULT_VALUE])
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return args, opts
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argdict[argname + '_list'] = None
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elif ap[-1] == '+':
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raise errors.BzrCommandError(gettext(
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"command {0!r} needs one or more {1}").format(
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cmd, argname.upper()))
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raise errors.BzrCommandError("command %r needs one or more %s"
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% (cmd, argname.upper()))
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argdict[argname + '_list'] = args[:]
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elif ap[-1] == '$': # all but one
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if len(args) < 2:
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raise errors.BzrCommandError(
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gettext("command {0!r} needs one or more {1}").format(
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cmd, argname.upper()))
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raise errors.BzrCommandError("command %r needs one or more %s"
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% (cmd, argname.upper()))
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argdict[argname + '_list'] = args[:-1]
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# just a plain arg
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raise errors.BzrCommandError(
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gettext("command {0!r} requires argument {1}").format(
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cmd, argname.upper()))
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raise errors.BzrCommandError("command %r requires argument %s"
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% (cmd, argname.upper()))
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argdict[argname] = args.pop(0)
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raise errors.BzrCommandError( gettext(
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"extra argument to command {0}: {1}").format(
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raise errors.BzrCommandError("extra argument to command %s: %s"
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def apply_lsprofiled(filename, the_callable, *args, **kwargs):
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from bzrlib.lsprof import profile
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ret, stats = profile(exception_to_return_code, the_callable,
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ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
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if filename is None:
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stats.save(filename)
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trace.note(gettext('Profile data written to "%s".'), filename)
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trace.note('Profile data written to "%s".', filename)
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@deprecated_function(deprecated_in((2, 2, 0)))
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def shlex_split_unicode(unsplit):
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return cmdline.split(unsplit)
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def get_alias(cmd, config=None):
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"""Return an expanded alias, or None if no alias exists.
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elif a == '--coverage':
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opt_coverage_dir = argv[i + 1]
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elif a == '--profile-imports':
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pass # already handled in startup script Bug #588277
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elif a.startswith('-D'):
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debug.debug_flags.add(a[2:])
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elif a.startswith('-O'):
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override_config.append(a[2:])
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argv_copy.append(a)
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if bzrlib.global_state is None:
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# FIXME: Workaround for users that imported bzrlib but didn't call
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# bzrlib.initialize -- vila 2012-01-19
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cmdline_overrides = config.CommandLineStore()
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cmdline_overrides = bzrlib.global_state.cmdline_overrides
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cmdline_overrides._from_cmdline(override_config)
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debug.set_debug_flags_from_config()
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if not opt_no_plugins:
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if not opt_no_aliases:
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alias_argv = get_alias(argv[0])
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user_encoding = osutils.get_user_encoding()
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alias_argv = [a.decode(user_encoding) for a in alias_argv]
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argv[0] = alias_argv.pop(0)
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cmd = argv.pop(0)
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# We want only 'ascii' command names, but the user may have typed
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# in a Unicode name. In that case, they should just get a
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# 'command not found' error later.
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cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
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run = cmd_obj.run_argv_aliases
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run_argv = [argv, alias_argv]
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class Provider(object):
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"""Generic class to be overriden by plugins"""
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'''Generic class to be overriden by plugins'''
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def plugin_for_command(self, cmd_name):
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"""Takes a command and returns the information for that plugin
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'''Takes a command and returns the information for that plugin
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:return: A dictionary with all the available information
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for the requested plugin
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for the requested plugin
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raise NotImplementedError
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class ProvidersRegistry(registry.Registry):
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"""This registry exists to allow other providers to exist"""
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'''This registry exists to allow other providers to exist'''
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def __iter__(self):
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for key, provider in self.iteritems():