AlkantarClanX12
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Used as a main program, this can refactor any number of files and/or
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� )�with_statementz#Guido van Rossum <guido@python.org>N)�chain� )�driver�tokenize�token)� find_root)�pytree�pygram)� btm_utils)� btm_matcherTc C s� t | g g d g � } t j j | j � } g } xh t t j | � � D]Q } | j d � rI | j d � rI | r� | d d � } | j | d d � � qI W| S)zEReturn a sorted list of all available fix names in the given package.�*�fix_z.py� N� ���)
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� } x5 | j D]* } x! | D] } | j t | � � q� Wq� W| St d | � � d S)zf Accepts a pytree Pattern Node and returns a set
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� D] } | | j | � q� Wt | � S)z^ Accepts a list of fixers and returns a dictionary
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)�replace)�inputr r r �_from_system_newlinesu s rC c C s* t j d k r" | j d t j � S| Sd S)Nr@ )r �lineseprA )rB r r r �_to_system_newlinesw s rE c s� d } t j t j | � j � � � f d d � } t t j t j t j h � } t
� } yVxO| � \ } } | | k r� q` q` | t j k r� | r� Pd } q` | t j k r�| d k r�| � \ } } | t j k s� | d k r� P| � \ } } | t j k s| d k rP| � \ } } | t j
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FixerErrorz A fixer could not be loaded.N)r! r" r# �__doc__r r r r rb � s rb c @ si e Z d Z d d d d i Z d Z d Z d d d d � Z d d
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j d � | _ g | _ d | _ t j | j d t j d | j �| _ | j � \ | _ | _ g | _ t j � | _ g | _ g | _ xz t | j | j � D]c } | j rQ| j j! | � q/| | j k rs| j j" | � q/| | j k r/| j j" | � q/Wt# | j � | _$ t# | j � | _% d S)z�Initializer.
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fixer_names: a list of fixers to import
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explicit: a list of fixers to run even if they are explicit.
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zRefactoringTool.__init__c C s� g } g } x�| j D]} t | i i d g � } | j d d � d } | j | j � ru | t | j � d � } | j d � } | j d j d d � | D� � } y t | | � } Wn( t
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� | | f S)a Inspects the options to load the requested patterns and handlers.
Returns:
(pre_order, post_order), where pre_order is the list of fixers that
want a pre-order AST traversal, and post_order is the list that want
post-order traversal.
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r8 r N�_� c S s g | ] } | j � � q Sr )�title)r9 r+ r r r r< � s z.RefactoringTool.get_fixers.<locals>.<listcomp>zCan't find %s.%sTzSkipping optional fixer: %szAdding transformation: %sZpreZpostzIllegal fixer order: %rZ run_order�key���)ri r �rsplitr � FILE_PREFIX�len�split� CLASS_PREFIX�join�getattr�AttributeErrorrb rm rs rj � log_message� log_debug�orderr �operator�
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zRefactoringTool.get_fixersc O s � d S)z Called when an error occurs.Nr )r} �msg�args�kwdsr r r � log_error s zRefactoringTool.log_errorc G s$ | r | | } | j j | � d S)zHook to log a message.N)rh �info)r} r� r� r r r r� s
zRefactoringTool.log_messagec G s$ | r | | } | j j | � d S)N)rh �debug)r} r� r� r r r r� s
zRefactoringTool.log_debugc C s d S)zTCalled with the old version, new version, and filename of a
refactored file.Nr )r} �old_text�new_text�filename�equalr r r � print_output! s z RefactoringTool.print_outputc C sP xI | D]A } t j j | � r5 | j | | | � q | j | | | � q Wd S)z)Refactor a list of files and directories.N)r r �isdir� refactor_dir�
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C s� t j d } x� t j | � D]� \ } } } | j d | � | j � | j � xb | D]Z } | j d � rW t j j | � d | k rW t j j | | � } | j | | | � qW Wd d � | D� | d d � <q Wd S)z�Descends down a directory and refactor every Python file found.
Python files are assumed to have a .py extension.
Files and subdirectories starting with '.' are skipped.
�pyzDescending into %sr8 r c S s% g | ] } | j d � s | � q S)r8 )r )r9 Zdnr r r r< A s z0RefactoringTool.refactor_dir.<locals>.<listcomp>N)
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�rbzCan't open %s: %sNr r* �encoding)NN)
�open�OSErrorr� r �detect_encodingrR �close�_open_with_encodingrC �read)r} r� �f�errr� r r r �_read_python_sourceC s z#RefactoringTool._read_python_sourcec C s | j | � \ } } | d k r% d S| d 7} | r� | j d | � | j | | � } | j sl | | k r� | j | | | | | � q| j d | � ni | j | | � } | j s� | r� | j r� | j t | � d d � | d | d | �n | j d | � d S)
zRefactors a file.Nr@ zRefactoring doctests in %szNo doctest changes in %sr r� r� zNo changes in %sr� )r� r� �refactor_docstringrf �processed_file�refactor_string� was_changed�str)r} r� r� r� rB r� �output�treer r r r� S s
z RefactoringTool.refactor_filec C s� t | � } d | k r' t j | j _ zb y | j j | � } WnE t k
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| j d | � | j | | � | S)aF Refactor a given input string.
Args:
data: a string holding the code to be refactored.
name: a human-readable name for use in error/log messages.
Returns:
An AST corresponding to the refactored input stream; None if
there were errors during the parse.
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refactor_tree)r} �datar r^ r� r� r r r r� j s z RefactoringTool.refactor_stringc C s� t j j � } | ro | j d � | j | d � } | j sI | | k r_ | j | d | � q� | j d � nS | j | d � } | j s� | r� | j r� | j t | � d | � n
| j d � d S)Nz Refactoring doctests in stdinz<stdin>zNo doctest changes in stdinzNo changes in stdin)
�sys�stdinr� r� r� rf r� r� r� r� )r} r� rB r� r� r r r �refactor_stdin� s
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C s� x- t | j | j � D] } | j | | � q W| j | j | j � � | j | j | j � � | j j | j � � } x�t
| j � � rLx�| j j D]�} | | k r� | | r� | | j
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d t j j � xGt | | � D]5} | | | k r3| | j | � y t | � Wn t k
rXw Yn X| j rt| | j k rtq | j | � } | r | j | | � } | d k r | j | � x6 | j � D]( } | j s�g | _ | j j | � q�W| j j | j � � } x9 | D]1 } | | k r(g | | <| | j | | � q Wq Wq� Wq} Wx- t | j | j � D] } | j | | � qcW| j S)a� Refactors a parse tree (modifying the tree in place).
For compatible patterns the bottom matcher module is
used. Otherwise the tree is traversed node-to-node for
matches.
Args:
tree: a pytree.Node instance representing the root of the tree
to be refactored.
name: a human-readable name for this tree.
Returns:
True if the tree was modified, False otherwise.
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start_tree� traverse_byr{ r| rz ZrunZleaves�anyr2 ri r� r ZBaseZdepthZkeep_line_orderZ
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% z RefactoringTool.refactor_treec C s} | s
d Sxl | D]d } x[ | | j D]L } | j | � } | r% | j | | � } | d k r% | j | � | } q% Wq Wd S)a Traverse an AST, applying a set of fixers to each node.
This is a helper method for refactor_tree().
Args:
fixers: a list of fixer instances.
traversal: a generator that yields AST nodes.
Returns:
None
N)r% r� r� rA )r} ri Z traversalr� r6 r� r� r r r r� � s
zRefactoringTool.traverse_byc C s� | j j | � | d k r? | j | � d } | d k r? d S| | k } | j | | | | � | r� | j d | � | j s� d S| r� | j | | | | � n | j d | � d S)zR
Called when a file has been refactored and there may be changes.
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write_file)r} r� r� r� r� r� r� r r r r� � s z RefactoringTool.processed_filec % C s� y t | d d | �} Wn< t k
rW } z | j d | | � d SWYd d } ~ Xn XzV y | j t | � � Wn8 t k
r� } z | j d | | � WYd d } ~ Xn XWd | j � X| j d | � d | _ d S)z�Writes a string to a file.
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�wr� zCan't create %s: %sNzCan't write %s: %szWrote changes to %sT)r� r� r� r� rE r� r� rt )r} r� r� r� r� r� r� r r r r� s * zRefactoringTool.write_filez>>> z... c
C s� g } d } d } d } d } x.| j d d � D]} | d 7} | j � j | j � r� | d k r� | j | j | | | | � � | } | g } | j | j � } | d | � } q1 | d k r| j | | j � s� | | | j j � d k r| j | � q1 | d k r2| j | j | | | | � � d } d } | j | � q1 W| d k rz| j | j | | | | � � d j
| � S)a� Refactors a docstring, looking for doctests.
This returns a modified version of the input string. It looks
for doctests, which start with a ">>>" prompt, and may be
continued with "..." prompts, as long as the "..." is indented
the same as the ">>>".
(Unfortunately we can't use the doctest module's parser,
since, like most parsers, it is not geared towards preserving
the original source.)
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z�Refactors one doctest.
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need to bezNo files %s modified.zFiles that %s modified:z$Warnings/messages while refactoring:r zThere was 1 error:zThere were %d errors:)rt rx r� rs rq r� )r} r� �file�messager� r� r� r r r � summarizep s$
zRefactoringTool.summarizec C s1 | j j | j | | | � � } t � | _ | S)z�Parses a block into a tree.
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� Z � S) �MultiprocessRefactoringToolc s/ t t | � j | | � d | _ d | _ d S)N)�superr� r~ �queue� output_lock)r} r� �kwargs)r� r r r~ � s z$MultiprocessRefactoringTool.__init__Fr c sU | d k r( t t � � j | | | � Sy d d l � Wn t k
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