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ztdistutils.cmd
Provides the Command class, the base class for the command classes
in the distutils.command package.
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d d d � Z d d d � Z d d � Z d d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d d' d( � Z d) d* d+ � Z d, d- � Z d. d/ � Z d0 d1 � Z d d d2 d3 � Z d4 d5 d6 � Z d d d d d7 d8 � Z d d d) d d9 d: � Z d d; d< � Z d d d= d> � Z d d d d d? d@ � Z! d d d dA dB � Z" d S)C�Commanda} Abstract base class for defining command classes, the "worker bees"
of the Distutils. A useful analogy for command classes is to think of
them as subroutines with local variables called "options". The options
are "declared" in 'initialize_options()' and "defined" (given their
final values, aka "finalized") in 'finalize_options()', both of which
must be defined by every command class. The distinction between the
two is necessary because option values might come from the outside
world (command line, config file, ...), and any options dependent on
other options must be computed *after* these outside influences have
been processed -- hence 'finalize_options()'. The "body" of the
subroutine, where it does all its work based on the values of its
options, is the 'run()' method, which must also be implemented by every
command class.
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zCommand.ensure_finalizedc C s t d | j � � d S)a� Set default values for all the options that this command
supports. Note that these defaults may be overridden by other
commands, by the setup script, by config files, or by the
command-line. Thus, this is not the place to code dependencies
between options; generally, 'initialize_options()' implementations
are just a bunch of "self.foo = None" assignments.
This method must be implemented by all command classes.
z,abstract method -- subclass %s must overrideN)r r
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zCommand.initialize_optionsc C s t d | j � � d S)a Set final values for all the options that this command supports.
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done. Thus, this is the place to code option dependencies: if
'foo' depends on 'bar', then it is safe to set 'foo' from 'bar' as
long as 'foo' still has the same value it was assigned in
'initialize_options()'.
This method must be implemented by all command classes.
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interaction should be done by 'run()'.
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z Command.runr c C s t j | | � d S)zmIf the current verbosity level is of greater than or equal to
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ensure_string� s zCommand.ensure_stringc C s� t | | � } | d k r d St | t � rM t | | t j d | � � nP t | t � rx t d d � | D� � } n d } | s� t d | | f � � n d S)z�Ensure that 'option' is a list of strings. If 'option' is
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Nz,\s*|\s+c s s | ] } t | t � Vq d S)N)r r: )�.0�vr r r � <genexpr>� s z-Command.ensure_string_list.<locals>.<genexpr>Fz''%s' must be a list of strings (got %r)) r r r: r9 �re�split�list�allr )r r. r= �okr r r �ensure_string_list� s zCommand.ensure_string_listc C sO | j | | | � } | d k rK | | � rK t d | | | f � � n d S)Nzerror in '%s' option: )r> r )r r. Ztesterr; Z error_fmtr< r= r r r �_ensure_tested_string� s
z Command._ensure_tested_stringc C s | j | t j j d d � d S)z5Ensure that 'option' is the name of an existing file.�filenamez$'%s' does not exist or is not a fileN)rJ �os�path�isfile)r r. r r r �ensure_filename� s zCommand.ensure_filenamec C s | j | t j j d d � d S)Nzdirectory namez)'%s' does not exist or is not a directory)rJ rL rM �isdir)r r. r r r �ensure_dirname s zCommand.ensure_dirnamec C s$ t | d � r | j S| j j Sd S)N� command_name)�hasattrrR r
�__name__)r r r r r' s zCommand.get_command_namec G sh | j j | � } | j � xE | D]= \ } } t | | � d k r# t | | t | | � � q# q# Wd S)a> Set the values of any "undefined" options from corresponding
option values in some other command object. "Undefined" here means
"is None", which is the convention used to indicate that an option
has not been changed between 'initialize_options()' and
'finalize_options()'. Usually called from 'finalize_options()' for
options that depend on some other command rather than another
option of the same command. 'src_cmd' is the other command from
which option values will be taken (a command object will be created
for it if necessary); the remaining arguments are
'(src_option,dst_option)' tuples which mean "take the value of
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N)r �get_command_objr! r r9 )r Zsrc_cmdZ option_pairsZ src_cmd_objZ
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z Command.get_finalized_commandr c C s | j j | | � S)N)r �reinitialize_command)r rW Zreinit_subcommandsr r r rZ 0 s z Command.reinitialize_commandc C s | j j | � d S)z�Run some other command: uses the 'run_command()' method of
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)r �warnr' )r r2 r r r r` K s z Command.warnc C s t j | | | d | j �d S)Nr )r �executer )r �func�argsr2 r$ r r r ra O s zCommand.executei� c C s t j | | d | j �d S)Nr )r �mkpathr )r �name�moder r r rd R s zCommand.mkpathc C s) t j | | | | | j | d | j �S)z�Copy a file respecting verbose, dry-run and force flags. (The
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j | � d S)a� Special case of 'execute()' for operations that process one or
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and it is true, then the command is unconditionally run -- does no
timestamp checks.
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S)� install_miscz{Common base class for installing some files in a subdirectory.
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