B ^ c-@sdZddlmZmZddlZddlZddlZddlZddlZddl Z ddl m Z ddZ Gdd d e j Zd d Zdd d ZdS)z Main program for 2to3. )with_statementprint_functionN)refactorc Cs(|}|}tj||||ddddS)z%Return a unified diff of two strings.z (original)z (refactored))Zlineterm) splitlinesdifflibZ unified_diff)abfilenamer lib/python3.7/lib2to3/main.py diff_textss  rcs>eZdZdZd fdd ZddZfddZd d ZZS) StdoutRefactoringToola2 A refactoring tool that can avoid overwriting its input files. Prints output to stdout. Output files can optionally be written to a different directory and or have an extra file suffix appended to their name for use in situations where you do not want to replace the input files. rc sP||_||_|r&|tjs&|tj7}||_||_||_tt | |||dS)aF Args: fixers: A list of fixers to import. options: A dict with RefactoringTool configuration. explicit: A list of fixers to run even if they are explicit. nobackups: If true no backup '.bak' files will be created for those files that are being refactored. show_diffs: Should diffs of the refactoring be printed to stdout? input_base_dir: The base directory for all input files. This class will strip this path prefix off of filenames before substituting it with output_dir. Only meaningful if output_dir is supplied. All files processed by refactor() must start with this path. output_dir: If supplied, all converted files will be written into this directory tree instead of input_base_dir. append_suffix: If supplied, all files output by this tool will have this appended to their filename. Useful for changing .py to .py3 for example by passing append_suffix='3'. N) nobackups show_diffsendswithossep_input_base_dir _output_dir_append_suffixsuperr__init__) selfZfixersoptionsexplicitrrinput_base_dir output_dir append_suffix) __class__r r r$s zStdoutRefactoringTool.__init__cOs*|j|||f|jj|f||dS)N)errorsappendloggererror)rmsgargskwargsr r r log_errorAszStdoutRefactoringTool.log_errorc sz|}|jrH||jr6tj|j|t|jd}ntd||jf|jrX||j7}||krtj |}tj |s|rt || d|||j s2|d}tj|ryt|Wn.tk r}z| d|Wdd}~XYnXyt||Wn2tk r0}z| d||Wdd}~XYnXtt|j} | |||||j s`t||||krvt||dS)Nz5filename %s does not start with the input_base_dir %szWriting converted %s to %s.z.bakzCan't remove backup %szCan't rename %s to %s)r startswithrrpathjoinlen ValueErrorrdirnameisdirmakedirs log_messagerlexistsremoveOSErrorrenamerr write_fileshutilZcopymode) rZnew_textr Zold_textencodingZ orig_filenamerZbackuperrwrite)r r r r6Es@          z StdoutRefactoringTool.write_filec Cs|r|d|n|d||jrt|||}yX|jdk rp|j&x|D] }t|qJWtjWdQRXnx|D] }t|qvWWn"tk rt d|fdSXdS)NzNo changes to %sz Refactored %sz+couldn't encode %s's diff for your terminal) r1rrZ output_lockprintsysstdoutflushUnicodeEncodeErrorwarn)roldnewr ZequalZ diff_linesliner r r print_outputls"       z"StdoutRefactoringTool.print_output)rrr) __name__ __module__ __qualname____doc__rr(r6rD __classcell__r r )r r rs  'rcCstd|ftjddS)Nz WARNING: %s)file)r;r<stderr)r%r r r r@sr@c stjdd}|jddddd|jdd d gd d |jd dddddd|jddd gdd |jddddd|jddddd|jddddd|jd dd!d|jd"d#dd$d|jd%d&dd'd(d |jd)d*dd+d,d-d.|jd/d0dd1d|jd2dd+d,d3d.d'}i}||\}}|jr@d4|d5<|js:td6d4|_|jrZ|jsZ| d7|j rt|jst| d8|js|j rtd9|js|jr| d:|j rt d;xtD]}t |qW|sdt d?tjd>d@SdA|kr,d4}|jr,t dBtjd>d@S|jrdSX|1t2t3|j+S)NzMain program. Args: fixer_pkg: the name of a package where the fixers are located. args: optional; a list of command line arguments. If omitted, sys.argv[1:] is used. Returns a suggested exit status (0, 1, 2). z2to3 [options] file|dir ...)Zusagez-dz--doctests_only store_truezFix up doctests only)actionhelpz-fz--fixr"z1Each FIX specifies a transformation; default: all)rMdefaultrNz-jz --processesZstorerintzRun 2to3 concurrently)rMrOtyperNz-xz--nofixz'Prevent a transformation from being runz-lz --list-fixeszList available transformationsz-pz--print-functionz0Modify the grammar so that print() is a functionz-vz --verbosezMore verbose loggingz --no-diffsz#Don't show diffs of the refactoringz-wz--writezWrite back modified filesz-nz --nobackupsFz&Don't write backups for modified filesz-oz --output-dirstrrzXPut output files in this directory instead of overwriting the input files. 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