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108 lines
3.3 KiB
108 lines
3.3 KiB
2 years ago
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"""Utilities for installing extensions"""
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# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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import os
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from tornado.log import LogFormatter
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from traitlets import Bool, Any
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from jupyter_core.application import JupyterApp
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from jupyter_core.paths import (
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jupyter_config_dir, ENV_CONFIG_PATH, SYSTEM_CONFIG_PATH
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)
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from ._version import __version__
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class ArgumentConflict(ValueError):
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pass
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_base_flags = {}
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_base_flags.update(JupyterApp.flags)
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_base_flags.pop("y", None)
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_base_flags.pop("generate-config", None)
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_base_flags.update({
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"user" : ({
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"BaseExtensionApp" : {
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"user" : True,
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}}, "Apply the operation only for the given user"
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),
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"system" : ({
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"BaseExtensionApp" : {
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"user" : False,
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"sys_prefix": False,
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}}, "Apply the operation system-wide"
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),
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"sys-prefix" : ({
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"BaseExtensionApp" : {
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"sys_prefix" : True,
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}}, "Use sys.prefix as the prefix for installing nbextensions (for environments, packaging)"
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),
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"py" : ({
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"BaseExtensionApp" : {
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"python" : True,
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}}, "Install from a Python package"
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)
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})
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_base_flags['python'] = _base_flags['py']
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_base_aliases = {}
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_base_aliases.update(JupyterApp.aliases)
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class BaseExtensionApp(JupyterApp):
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"""Base nbextension installer app"""
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_log_formatter_cls = LogFormatter
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flags = _base_flags
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aliases = _base_aliases
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version = __version__
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user = Bool(False, config=True, help="Whether to do a user install")
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sys_prefix = Bool(False, config=True, help="Use the sys.prefix as the prefix")
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python = Bool(False, config=True, help="Install from a Python package")
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# Remove for 5.0...
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verbose = Any(None, config=True, help="DEPRECATED: Verbosity level")
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def _verbose_changed(self):
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"""Warn about verbosity changes"""
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import warnings
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warnings.warn(
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f"`verbose` traits of `{type(self).__name__}` has been deprecated, "
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f"has no effects and will be removed in notebook 5.0.",
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DeprecationWarning
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)
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def _log_format_default(self):
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"""A default format for messages"""
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return "%(message)s"
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def _get_config_dir(user=False, sys_prefix=False):
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"""Get the location of config files for the current context
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Returns the string to the environment
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Parameters
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----------
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user : bool [default: False]
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Get the user's .jupyter config directory
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sys_prefix : bool [default: False]
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Get sys.prefix, i.e. ~/.envs/my-env/etc/jupyter
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"""
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user = False if sys_prefix else user
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if user and sys_prefix:
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raise ArgumentConflict("Cannot specify more than one of user or sys_prefix")
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if user:
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nbext = jupyter_config_dir()
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elif sys_prefix:
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nbext = ENV_CONFIG_PATH[0]
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else:
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nbext = SYSTEM_CONFIG_PATH[0]
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return nbext
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# Constants for pretty print extension listing function.
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# Window doesn't support coloring in the commandline
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GREEN_ENABLED = '\033[32m enabled \033[0m' if os.name != 'nt' else 'enabled '
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RED_DISABLED = '\033[31mdisabled\033[0m' if os.name != 'nt' else 'disabled'
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GREEN_OK = '\033[32mOK\033[0m' if os.name != 'nt' else 'ok'
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RED_X = '\033[31m X\033[0m' if os.name != 'nt' else ' X'
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