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o ���c�0 � @ s� d dl mZ d dlmZ d dlmZ d dlZd dlZd dlZd dl m Z m Z d dl m Z d dlmZ ddd �ZG d d � d e�ZG d d � d e�Zddd�ZdS )� )�absolute_import)� getLogger)� OptionParserN)� ConfigObj�ConfigObjError)� StringType)�clic C s2 d}|dur |d� |�7 }| jddd||d� dS )z>Add common config-related CLI options to the given arg parser.zUUse config from this file (any command line options override settings from the file).Nz (default: {!r})z-cz--config�FILE)�metavar�default�help)�format� add_option)�parser�filename� cfgfilehelp� r �6/usr/lib/python3/dist-packages/landscape/lib/config.py�add_cli_options s �r c @ s" e Zd Zi Zddd�Zdd� ZdS )�ConfigSpecOptionParserNc C s t �| |� d S �N)r �__init__)�self�unsaved_optionsr r r r s z ConfigSpecOptionParser.__init__c O s4 t j| g|�R i |��}tt|�� t|�� � |S r )r r �print�dir�get_opt_string)r �args�kwargs�optionr r r r s z!ConfigSpecOptionParser.add_optionr )�__name__� __module__� __qualname__�_config_spec_definitionsr r r r r r r s r c s� e Zd ZdZdZdZdZdZdZdZ dd� Z dd� Z dd � Z d#d d �Z � fd d �Zdd� Zd$dd�Zdd� Zdd� Zdd� Zd#dd�Zdd � Zd%d d �Zd d � Zd!d"� Z� ZS )&�BaseConfigurationaS Base class for configuration implementations. @cvar required_options: Optionally, a sequence of key names to require when reading or writing a configuration. @cvar unsaved_options: Optionally, a sequence of key names to never write to the configuration file. This is useful when you want to provide command-line options that should never end up in a configuration file. @cvar default_config_filenames: A sequence of filenames to check when reading or writing a configuration. Default values for supported options are set as in make_parser. Nr c C sF i | _ g | _i | _d | _i | _| �� | _| jj�� | _ | jj� � d S r ) � _set_options�_command_line_args�_command_line_options�_config_filename�_config_file_options� make_parser�_parser�defaults�copy�_command_line_defaults�clear�r r r r r = s zBaseConfiguration.__init__c C s� | j | j| j| jfD ] }||v r|| } nq | j�d|�dd� �r&d}nt|��t|t �rE| j� d|�dd� �}|durE|� d|�}|S )a� Find and return the value of the given configuration parameter. The following sources will be searched: - The attributes that were explicitly set on this object, - The parameters specified on the command line, - The parameters specified in the configuration file, and - The defaults. If no values are found and the parameter does exist as a possible parameter, C{None} is returned. Otherwise C{AttributeError} is raised. z--�_�-N) r% r' r) r. r+ � has_option�replace�AttributeError� isinstance� basestring� get_option� convert_value)r �name�options�valuer r r r � __getattr__I s" �� z BaseConfiguration.__getattr__c C s8 | � � }| j�� |_| j�� |_| j|_| j�� |_|S )zX Return a new configuration object, with the same settings as this one. )� __class__r% r- r' r( r) )r �configr r r �clonei s zBaseConfiguration.clonec C s$ z| � |�W S ty | Y S w )z5Return the value of the C{name} option or C{default}.)r= r5 )r r: r r r r �gett s �zBaseConfiguration.getc s. |� d�rtt| ��||� dS || j|< dS )z�Set a configuration parameter. If the name begins with C{_}, it will only be set on this object and not stored in the configuration file. r1 N)� startswith�superr$ � __setattr__r% )r r: r< �r> r r rD { s z BaseConfiguration.__setattr__c C s | � | j� dS )zhReload options using the configured command line arguments. @see: L{load_command_line} N)�loadr& r0 r r r �reload� s zBaseConfiguration.reloadFc C s� | � |� | jr| jg}d}n| j}|}|D ]}tj�|�r,t�|tj�r,| �|� nq|sCt |�dkr<d|d }nd}t � |� | � � | j D ]}t| |�s^t � d|�dd�|f � qJd S ) a Load configuration data from command line arguments and a config file. @param accept_nonexistent_default_config: If True, don't complain if default configuration files aren't found @raise: A SystemExit if the arguments are bad. F� z#error: config file %s can't be readr z#error: no config file could be readzBerror: must specify --%s or the '%s' directive in the config file.r1 r2 N)�load_command_liner? �default_config_filenames�os�path�isfile�access�R_OK�load_configuration_file�len�sys�exit�_load_external_options�required_options�getattrr4 )r r �!accept_nonexistent_default_config�config_filenames� allow_missing�config_filename�messager r r r rF � s: � � �� ���zBaseConfiguration.loadc C s dS )z<Hook for loading options from elsewhere (e.g. for --import).Nr r0 r r r rT � s z(BaseConfiguration._load_external_optionsc C s$ || _ | j�|�d }t|�| _dS )z4Load configuration data from the given command line.r N)r& r+ � parse_args�varsr' )r r �valuesr r r rI � s z#BaseConfiguration.load_command_linec C s6 || _ | �� }z || j | _W dS ty Y dS w )z�Load configuration data from the given file name. If any data has already been set on this configuration object, then the old data will take precedence. N)r( �_get_config_object�config_sectionr) �KeyError)r r � config_objr r r rP � s �z)BaseConfiguration.load_configuration_filec C sl |p| � � }z t|dddd�}W |S ty5 } zt� }|�d�|t|��� |j}W Y d}~|S d}~ww )z�Create a L{ConfigObj} consistent with our preferences. @param config_source: Optional readable source to read from instead of the default configuration file. FT)� list_values� raise_errors�write_empty_valueszERROR at {}: {}N)�get_config_filenamer r r �warnr �strr? )r �alternative_config� config_sourcerb �e�loggerr r r r_ � s ����z$BaseConfiguration._get_config_objectc C s� | � � }| �� }| j|vri || j< | j�� }|�| j� |�| j� || j }|�� D ]1\}}|dkr]|| j vr]|| j � |�krY|| jvrY|| jvrY||| j v rX|| j |= q,|||< q,||| j< ||_ |� � dS )a� Write back configuration to the configuration file. Values which match the default option in the parser won't be saved. Options are considered in the following precedence: 1. Manually set options (C{config.option = value}) 2. Options passed in the command line 3. Previously existent options in the configuration file The filename picked for saving configuration options is the one returned by L{get_config_filename}. r? N)rf r_ r` r) r- �updater' r% �itemsr r. rA r �write)r r rb � all_options�sectionr: r< r r r ro � s* �� zBaseConfiguration.writec C s t | jd�}t�|||� |S )z�Parser factory for supported options. @return: An OptionParser preset with options that all programs commonly accept. These include - config - data_path )�version)r rr r r )r �cfgfile�datadirr r r r r* s z BaseConfiguration.make_parserc C sN | j r| j S | jr | jS | jr%| jD ] }t�|tj�r | S q| jd S dS )z�Pick the proper configuration file. The picked filename is: 1. C{self.config}, if defined 2. The last loaded configuration file, if any 3. The first filename in C{self.default_config_filenames} r N)r? r( rJ rK rN rO )r �potential_config_filer r r rf % s � z%BaseConfiguration.get_config_filenamec C s | j S )zWGet currently loaded command line options. @see: L{load_command_line} )r' r0 r r r �get_command_line_options8 s z*BaseConfiguration.get_command_line_optionsr )F)NN)r r! r" �__doc__rr rU r rJ �default_data_dirr` r r= r@ rA rD rG rF rT rI rP r_ ro r* rf rv � __classcell__r r rE r r$ ' s. . - r$ c C sH z| j }W n ty d}Y nw |du r"tj�tj�tjd ��}|S )z�Return the directory path where the client binaries are. If the config is None, it doesn't have a "bindir" attribute, or its value is None, then sys.argv[0] is returned. Nr )�bindirr5 rK rL �dirname�abspathrR �argv)r? rz r r r � get_bindir@ s �r~ r )� __future__r �loggingr �optparser rK �os.pathrR � configobjr r �twisted.python.compatr r7 � landscape.libr r r �objectr$ r~ r r r r �<module> s
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