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r� } z|jdkrv| |_� W 5 d}~X Y nX dS )zPContext manager that attaches extra information to exceptions that
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rO c s � fdd�}t ||d�S )z�Given a sequence of parameters in the order as should be considered
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dd� Z dd� Z dd� Z
e dd� �Zdd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd0d$d%�Zd&d'� Zd(d)� Zd*d+� Zd,d-� ZdS )1�ContextaC The context is a special internal object that holds state relevant
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control special execution features such as reading data from
environment variables.
A context can be used as context manager in which case it will call
:meth:`close` on teardown.
.. versionadded:: 2.0
Added the `resilient_parsing`, `help_option_names`,
`token_normalize_func` parameters.
.. versionadded:: 3.0
Added the `allow_extra_args` and `allow_interspersed_args`
parameters.
.. versionadded:: 4.0
Added the `color`, `ignore_unknown_options`, and
`max_content_width` parameters.
:param command: the command class for this context.
:param parent: the parent context.
:param info_name: the info name for this invocation. Generally this
is the most descriptive name for the script or
command. For the toplevel script it is usually
the name of the script, for commands below it it's
the name of the script.
:param obj: an arbitrary object of user data.
:param auto_envvar_prefix: the prefix to use for automatic environment
variables. If this is `None` then reading
from environment variables is disabled. This
does not affect manually set environment
variables which are always read.
:param default_map: a dictionary (like object) with default values
for parameters.
:param terminal_width: the width of the terminal. The default is
inherit from parent context. If no context
defines the terminal width then auto
detection will be applied.
:param max_content_width: the maximum width for content rendered by
Click (this currently only affects help
pages). This defaults to 80 characters if
not overridden. In other words: even if the
terminal is larger than that, Click will not
format things wider than 80 characters by
default. In addition to that, formatters might
add some safety mapping on the right.
:param resilient_parsing: if this flag is enabled then Click will
parse without any interactivity or callback
invocation. This is useful for implementing
things such as completion support.
:param allow_extra_args: if this is set to `True` then extra arguments
at the end will not raise an error and will be
kept on the context. The default is to inherit
from the command.
:param allow_interspersed_args: if this is set to `False` then options
and arguments cannot be mixed. The
default is to inherit from the command.
:param ignore_unknown_options: instructs click to ignore options it does
not know and keeps them for later
processing.
:param help_option_names: optionally a list of strings that define how
the default help parameter is named. The
default is ``['--help']``.
:param token_normalize_func: an optional function that is used to
normalize tokens (options, choices,
etc.). This for instance can be used to
implement case insensitive behavior.
:param color: controls if the terminal supports ANSI colors or not. The
default is autodetection. This is only needed if ANSI
codes are used in texts that Click prints which is by
default not the case. This for instance would affect
help output.
NFc C s� || _ || _|| _i | _g | _g | _|d kr:|d k r:|j}|| _t|di �| _|d krt|d k rt|j d k rt|j �
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|�� | _|| _|d k�r�|d k �r�|j}|| _g | _d| _d S )N�metaz--help�%s_%sr )�parent�command� info_name�paramsrL �protected_args�objrD �_meta� default_mapr& �invoked_subcommand�terminal_width�max_content_width�allow_extra_args�allow_interspersed_args�ignore_unknown_options�help_option_names�token_normalize_func�resilient_parsing�auto_envvar_prefixr# �color�_close_callbacks�_depth)�selfrb ra rc rf rr rh rj rk rq rl rm rn ro rp rs r- r- r. �__init__� st ��
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zContext.__init__c C s | j d7 _ t| � | S �Nr )ru r �rv r- r- r. � __enter__B s zContext.__enter__c C s* | j d8 _ | j dkr | �� t� d S �Nr r )ru �closer )rv �exc_type� exc_value�tbr- r- r. �__exit__G s
zContext.__exit__Tc c sF |s| j d7 _ z| � }|V W 5 Q R X W 5 |s@| j d8 _ X dS )aI This helper method can be used with the context object to promote
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The default behavior of this is to invoke the cleanup functions which
can be disabled by setting `cleanup` to `False`. The cleanup
functions are typically used for things such as closing file handles.
If the cleanup is intended the context object can also be directly
used as a context manager.
Example usage::
with ctx.scope():
assert get_current_context() is ctx
This is equivalent::
with ctx:
assert get_current_context() is ctx
.. versionadded:: 5.0
:param cleanup: controls if the cleanup functions should be run or
not. The default is to run these functions. In
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r N)ru )rv �cleanup�rvr- r- r. �scopeM s z
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module paths are a good choice for it. What is stored in there is
irrelevant for the operation of click. However what is important is
that code that places data here adheres to the general semantics of
the system.
Example usage::
LANG_KEY = __name__ + '.lang'
def set_language(value):
ctx = get_current_context()
ctx.meta[LANG_KEY] = value
def get_language():
return get_current_context().meta.get(LANG_KEY, 'en_US')
.. versionadded:: 5.0
)rg ry r- r- r. r_ s s z Context.metac C s t | j| jd�S )z4Creates the formatter for the help and usage output.)�widthZ max_width)r rj rk ry r- r- r. �make_formatter� s �zContext.make_formatterc C s | j �|� |S )at This decorator remembers a function as callback that should be
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resource handling to the script execution. For instance, file objects
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call_on_close� s zContext.call_on_closec C s | j D ]
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zContext.find_rootc C s* | }|dk r&t |j|�r |jS |j}qdS )z)Finds the closest object of a given type.N)r0 rf ra )rv � object_typer� r- r- r. � find_object� s
zContext.find_objectc C s" | � |�}|dkr |� | _}|S )z�Like :meth:`find_object` but sets the innermost object to a
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zContext.lookup_defaultc C s t || ��dS )z�Aborts the execution of the program with a specific error
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)rb �get_helpry r- r- r. r� � s zContext.get_helpc O s� | dd� \}}|}t |t�rt|}|j}t||j|d�}|dkrHtd��|jD ]$}|j|krN|jrN|�|�||j< qN| dd� } t |��4 |�$ || |�W 5 Q R � W 5 Q R � S Q R X W 5 Q R X dS )a" Invokes a command callback in exactly the way it expects. There
are two ways to invoke this method:
1. the first argument can be a callback and all other arguments and
keyword arguments are forwarded directly to the function.
2. the first argument is a click command object. In that case all
arguments are forwarded as well but proper click parameters
(options and click arguments) must be keyword arguments and Click
will fill in defaults.
Note that before Click 3.2 keyword arguments were not properly filled
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'r^ c @ sb e Zd ZdZdZdZdZddd�Zdd� Zd d
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dd� ZdS )� BaseCommanda� The base command implements the minimal API contract of commands.
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argparse or docopt.
Because base commands do not implement a lot of the API that other
parts of Click take for granted, they are not supported for all
operations. For instance, they cannot be used with the decorators
usually and they have no built-in callback system.
.. versionchanged:: 2.0
Added the `context_settings` parameter.
:param name: the name of the command to use unless a group overrides it.
:param context_settings: an optional dictionary with defaults that are
passed to the context object.
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t| f||d�|��}|jdd�� | �||� W 5 Q R X |S )a This function when given an info name and arguments will kick
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invoke the actual command callback though.
:param info_name: the info name for this invokation. Generally this
is the most descriptive name for the script or
command. For the toplevel script it's usually
the name of the script, for commands below it it's
the name of the script.
:param args: the arguments to parse as list of strings.
:param parent: the parent context if available.
:param extra: extra keyword arguments forwarded to the context
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||f|��0}| �|�}|s�|W 5 Q R � W W S |�� W 5 Q R X W nf ttfk
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�r } z |s� |�� t �|j� W 5 d}~X Y nX W n6 tk
�rJ |�s.� tdt jd� t �d� Y nX dS )a1 This is the way to invoke a script with all the bells and
whistles as a command line application. This will always terminate
the application after a call. If this is not wanted, ``SystemExit``
needs to be caught.
This method is also available by directly calling the instance of
a :class:`Command`.
.. versionadded:: 3.0
Added the `standalone_mode` flag to control the standalone mode.
:param args: the arguments that should be used for parsing. If not
provided, ``sys.argv[1:]`` is used.
:param prog_name: the program name that should be used. By default
the program name is constructed by taking the file
name from ``sys.argv[0]``.
:param complete_var: the environment variable that controls the
bash completion support. The default is
``"_<prog_name>_COMPLETE"`` with prog name in
uppercase.
:param standalone_mode: the default behavior is to invoke the script
in standalone mode. Click will then
handle exceptions and convert them into
error messages and the function will never
return but shut down the interpreter. If
this is set to `False` they will be
propagated to the caller and the return
value of this function is the return value
of :meth:`invoke`.
:param extra: extra keyword arguments are forwarded to the context
constructor. See :class:`Context` for more information.
Nr )�filezAborted!r )r r r r r: r r$ �path�basenamer( �argv�__file__r' r� r� r) �EOFError�KeyboardInterruptr �stderrr r
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�
Mr� c @ s� e Zd ZdZd#dd�Zdd� Zd d
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dd� Z dd� Z dd� Z
dd� Zdd � Zd d � Zd d � Zd!d"� ZdS )$r� a� Commands are the basic building block of command line interfaces in
Click. A basic command handles command line parsing and might dispatch
more parsing to commands nested below it.
.. versionchanged:: 2.0
Added the `context_settings` parameter.
:param name: the name of the command to use unless a group overrides it.
:param context_settings: an optional dictionary with defaults that are
passed to the context object.
:param callback: the callback to invoke. This is optional.
:param params: the parameters to register with this command. This can
be either :class:`Option` or :class:`Argument` objects.
:param help: the help string to use for this command.
:param epilog: like the help string but it's printed at the end of the
help page after everything else.
:param short_help: the short help to use for this command. This is
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:param add_help_option: by default each command registers a ``--help``
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N� [OPTIONS]Tc
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N)r� �format_help_text�format_options�
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zCommand.format_help_textc C sX g }| � |�D ] }|�|�}|dk r|�|� q|rT|�d�� |�|� W 5 Q R X dS )z8Writes all the options into the formatter if they exist.NZOptions)r� �get_help_recordr� �section�write_dl)rv rH r� r� rI r� r- r- r. r� Q s
zCommand.format_optionsc C s2 | j r.|�� |�� � |�| j � W 5 Q R X dS )z2Writes the epilog into the formatter if it exists.N)r� r� r� r� r� r- r- r. r� ] s
zCommand.format_epilogc C s� | � |�}|j|d�\}}}t|| �|��D ]}|�|||�\}}q,|r�|js�|js�|�dt|�dkrjdpldd� t
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���zCommand.parse_argsc C s | j dk r |j| j f|j�S dS )zeGiven a context, this invokes the attached callback (if it exists)
in the right way.
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dd� Zdd� ZdS )r1 a A multi command is the basic implementation of a command that
dispatches to subcommands. The most common version is the
:class:`Group`.
:param invoke_without_command: this controls how the multi command itself
is invoked. By default it's only invoked
if a subcommand is provided.
:param no_args_is_help: this controls what happens if no arguments are
provided. This option is enabled by default if
`invoke_without_command` is disabled or disabled
if it's enabled. If enabled this will add
``--help`` as argument if no arguments are
passed.
:param subcommand_metavar: the string that is used in the documentation
to indicate the subcommand place.
:param chain: if this is set to `True` chaining of multiple subcommands
is enabled. This restricts the form of commands in that
they cannot have optional arguments but it allows
multiple commands to be chained together.
:param result_callback: the result callback to attach to this multi
command.
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(or the list of return values from all subcommands if chaining
is enabled) as well as the parameters as they would be passed
to the main callback.
Example::
@click.group()
@click.option('-i', '--input', default=23)
def cli(input):
return 42
@cli.resultcallback()
def process_result(result, input):
return result + input
.. versionadded:: 3.0
:param replace: if set to `True` an already existing result
callback will be removed.
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Some settings are supported by both options and arguments.
.. versionchanged:: 2.0
Changed signature for parameter callback to also be passed the
parameter. In Click 2.0, the old callback format will still work,
but it will raise a warning to give you change to migrate the
code easier.
:param param_decls: the parameter declarations for this option or
argument. This is a list of flags or argument
names.
:param type: the type that should be used. Either a :class:`ParamType`
or a Python type. The later is converted into the former
automatically if supported.
:param required: controls if this is optional or not.
:param default: the default value if omitted. This can also be a callable,
in which case it's invoked when the default is needed
without any arguments.
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was matched. This is called as ``fn(ctx, param,
value)`` and needs to return the value. Before Click
2.0, the signature was ``(ctx, value)``.
:param nargs: the number of arguments to match. If not ``1`` the return
value is a tuple instead of single value. The default for
nargs is ``1`` (except if the type is a tuple, then it's
the arity of the tuple).
:param metavar: how the value is represented in the help page.
:param expose_value: if this is `True` then the value is passed onwards
to the command callback and stored on the context,
otherwise it's skipped.
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order of processing.
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that should be checked.
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:param prompt: if set to `True` or a non empty string then the user will
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:param confirmation_prompt: if set then the value will need to be confirmed
if it was prompted for.
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hidden from the user. This is useful for password
input.
:param is_flag: forces this option to act as a flag. The default is
auto detection.
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enabled. This is set to a boolean automatically if
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multiple times and recorded. This is similar to ``nargs``
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