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# encoding: utf-8
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"""
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An application for managing IPython profiles.
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To be invoked as the `ipython profile` subcommand.
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Authors:
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* Min RK
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"""
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#-----------------------------------------------------------------------------
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# Copyright (C) 2008 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import os
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from traitlets.config.application import Application
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from IPython.core.application import (
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BaseIPythonApplication, base_flags
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)
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from IPython.core.profiledir import ProfileDir
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from IPython.utils.importstring import import_item
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from IPython.paths import get_ipython_dir, get_ipython_package_dir
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from traitlets import Unicode, Bool, Dict, observe
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#-----------------------------------------------------------------------------
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# Constants
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#-----------------------------------------------------------------------------
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create_help = """Create an IPython profile by name
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Create an ipython profile directory by its name or
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profile directory path. Profile directories contain
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configuration, log and security related files and are named
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using the convention 'profile_<name>'. By default they are
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located in your ipython directory. Once created, you will
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can edit the configuration files in the profile
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directory to configure IPython. Most users will create a
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profile directory by name,
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`ipython profile create myprofile`, which will put the directory
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in `<ipython_dir>/profile_myprofile`.
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"""
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list_help = """List available IPython profiles
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List all available profiles, by profile location, that can
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be found in the current working directly or in the ipython
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directory. Profile directories are named using the convention
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'profile_<profile>'.
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"""
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profile_help = """Manage IPython profiles
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Profile directories contain
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configuration, log and security related files and are named
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using the convention 'profile_<name>'. By default they are
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located in your ipython directory. You can create profiles
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with `ipython profile create <name>`, or see the profiles you
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already have with `ipython profile list`
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To get started configuring IPython, simply do:
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$> ipython profile create
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and IPython will create the default profile in <ipython_dir>/profile_default,
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where you can edit ipython_config.py to start configuring IPython.
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"""
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_list_examples = "ipython profile list # list all profiles"
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_create_examples = """
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ipython profile create foo # create profile foo w/ default config files
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ipython profile create foo --reset # restage default config files over current
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ipython profile create foo --parallel # also stage parallel config files
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"""
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_main_examples = """
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ipython profile create -h # show the help string for the create subcommand
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ipython profile list -h # show the help string for the list subcommand
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ipython locate profile foo # print the path to the directory for profile 'foo'
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"""
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#-----------------------------------------------------------------------------
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# Profile Application Class (for `ipython profile` subcommand)
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#-----------------------------------------------------------------------------
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def list_profiles_in(path):
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"""list profiles in a given root directory"""
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profiles = []
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with os.scandir(path) as files:
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for f in files:
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if f.is_dir() and f.name.startswith('profile_'):
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profiles.append(f.name.split('_', 1)[-1])
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return profiles
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def list_bundled_profiles():
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"""list profiles that are bundled with IPython."""
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path = os.path.join(get_ipython_package_dir(), u'core', u'profile')
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profiles = []
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with os.scandir(path) as files:
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for profile in files:
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if profile.is_dir() and profile.name != "__pycache__":
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profiles.append(profile.name)
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return profiles
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class ProfileLocate(BaseIPythonApplication):
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description = """print the path to an IPython profile dir"""
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def parse_command_line(self, argv=None):
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super(ProfileLocate, self).parse_command_line(argv)
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if self.extra_args:
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self.profile = self.extra_args[0]
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def start(self):
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print(self.profile_dir.location)
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class ProfileList(Application):
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name = u'ipython-profile'
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description = list_help
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examples = _list_examples
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aliases = Dict({
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'ipython-dir' : 'ProfileList.ipython_dir',
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'log-level' : 'Application.log_level',
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})
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flags = Dict(dict(
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debug = ({'Application' : {'log_level' : 0}},
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"Set Application.log_level to 0, maximizing log output."
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)
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))
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ipython_dir = Unicode(get_ipython_dir(),
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help="""
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The name of the IPython directory. This directory is used for logging
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configuration (through profiles), history storage, etc. The default
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is usually $HOME/.ipython. This options can also be specified through
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the environment variable IPYTHONDIR.
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"""
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).tag(config=True)
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def _print_profiles(self, profiles):
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"""print list of profiles, indented."""
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for profile in profiles:
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print(' %s' % profile)
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def list_profile_dirs(self):
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profiles = list_bundled_profiles()
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if profiles:
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print()
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print("Available profiles in IPython:")
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self._print_profiles(profiles)
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print()
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print(" The first request for a bundled profile will copy it")
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print(" into your IPython directory (%s)," % self.ipython_dir)
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print(" where you can customize it.")
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profiles = list_profiles_in(self.ipython_dir)
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if profiles:
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print()
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print("Available profiles in %s:" % self.ipython_dir)
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self._print_profiles(profiles)
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profiles = list_profiles_in(os.getcwd())
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if profiles:
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print()
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print("Available profiles in current directory (%s):" % os.getcwd())
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self._print_profiles(profiles)
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print()
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print("To use any of the above profiles, start IPython with:")
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print(" ipython --profile=<name>")
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print()
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def start(self):
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self.list_profile_dirs()
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create_flags = {}
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create_flags.update(base_flags)
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# don't include '--init' flag, which implies running profile create in other apps
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create_flags.pop('init')
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create_flags['reset'] = ({'ProfileCreate': {'overwrite' : True}},
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"reset config files in this profile to the defaults.")
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create_flags['parallel'] = ({'ProfileCreate': {'parallel' : True}},
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"Include the config files for parallel "
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"computing apps (ipengine, ipcontroller, etc.)")
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class ProfileCreate(BaseIPythonApplication):
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name = u'ipython-profile'
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description = create_help
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examples = _create_examples
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auto_create = Bool(True)
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def _log_format_default(self):
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return "[%(name)s] %(message)s"
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def _copy_config_files_default(self):
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return True
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parallel = Bool(False,
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help="whether to include parallel computing config files"
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).tag(config=True)
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@observe('parallel')
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def _parallel_changed(self, change):
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parallel_files = [ 'ipcontroller_config.py',
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'ipengine_config.py',
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'ipcluster_config.py'
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]
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if change['new']:
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for cf in parallel_files:
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self.config_files.append(cf)
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else:
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for cf in parallel_files:
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if cf in self.config_files:
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self.config_files.remove(cf)
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def parse_command_line(self, argv):
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super(ProfileCreate, self).parse_command_line(argv)
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# accept positional arg as profile name
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if self.extra_args:
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self.profile = self.extra_args[0]
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flags = Dict(create_flags)
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classes = [ProfileDir]
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def _import_app(self, app_path):
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"""import an app class"""
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app = None
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name = app_path.rsplit('.', 1)[-1]
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try:
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app = import_item(app_path)
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except ImportError:
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self.log.info("Couldn't import %s, config file will be excluded", name)
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except Exception:
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self.log.warning('Unexpected error importing %s', name, exc_info=True)
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return app
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def init_config_files(self):
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super(ProfileCreate, self).init_config_files()
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# use local imports, since these classes may import from here
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from IPython.terminal.ipapp import TerminalIPythonApp
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apps = [TerminalIPythonApp]
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for app_path in (
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'ipykernel.kernelapp.IPKernelApp',
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):
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app = self._import_app(app_path)
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if app is not None:
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apps.append(app)
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if self.parallel:
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from ipyparallel.apps.ipcontrollerapp import IPControllerApp
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from ipyparallel.apps.ipengineapp import IPEngineApp
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from ipyparallel.apps.ipclusterapp import IPClusterStart
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apps.extend([
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IPControllerApp,
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IPEngineApp,
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IPClusterStart,
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])
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for App in apps:
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app = App()
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app.config.update(self.config)
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app.log = self.log
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app.overwrite = self.overwrite
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app.copy_config_files=True
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app.ipython_dir=self.ipython_dir
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app.profile_dir=self.profile_dir
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app.init_config_files()
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def stage_default_config_file(self):
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pass
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class ProfileApp(Application):
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name = u'ipython profile'
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description = profile_help
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examples = _main_examples
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subcommands = Dict(dict(
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create = (ProfileCreate, ProfileCreate.description.splitlines()[0]),
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list = (ProfileList, ProfileList.description.splitlines()[0]),
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locate = (ProfileLocate, ProfileLocate.description.splitlines()[0]),
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))
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def start(self):
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if self.subapp is None:
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print("No subcommand specified. Must specify one of: %s"%(self.subcommands.keys()))
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print()
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self.print_description()
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self.print_subcommands()
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self.exit(1)
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else:
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return self.subapp.start()
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