FM / lib2to3

/usr/lib64/python2.6/lib2to3

Name	Size	Mode	Actions
fixes/	-	0755	rm
pgen2/	-	0755	rm
fixer_base.py	6377	0644	edit dl rm
fixer_base.pyc	7135	0644	edit dl rm
fixer_base.pyo	7135	0644	edit dl rm
fixer_util.py	14225	0644	edit dl rm
fixer_util.pyc	14387	0644	edit dl rm
fixer_util.pyo	14281	0644	edit dl rm
Grammar.txt	6536	0644	edit dl rm
Grammar2.6.6.final.0.pickle	20214	0644	edit dl rm
main.py	6868	0644	edit dl rm
main.pyc	6629	0644	edit dl rm
main.pyo	6585	0644	edit dl rm
patcomp.py	6967	0644	edit dl rm
patcomp.pyc	6737	0644	edit dl rm
patcomp.pyo	6410	0644	edit dl rm
PatternGrammar.txt	793	0644	edit dl rm
PatternGrammar2.6.6.final.0.pickle	1383	0644	edit dl rm
pygram.py	890	0644	edit dl rm
pygram.pyc	1259	0644	edit dl rm
pygram.pyo	1259	0644	edit dl rm
pytree.py	28107	0644	edit dl rm
pytree.pyc	29776	0644	edit dl rm
pytree.pyo	28902	0644	edit dl rm
refactor.py	24179	0644	edit dl rm
refactor.pyc	22689	0644	edit dl rm
refactor.pyo	22648	0644	edit dl rm
__init__.py	7	0644	edit dl rm
__init__.pyc	127	0644	edit dl rm
__init__.pyo	127	0644	edit dl rm

Edit: /usr/lib64/python2.6/lib2to3/main.py (6868B)

"""
Main program for 2to3.
"""

from __future__ import with_statement

import sys
import os
import difflib
import logging
import shutil
import optparse

from . import refactor

def diff_texts(a, b, filename):
    """Return a unified diff of two strings."""
    a = a.splitlines()
    b = b.splitlines()
    return difflib.unified_diff(a, b, filename, filename,
                                "(original)", "(refactored)",
                                lineterm="")

class StdoutRefactoringTool(refactor.MultiprocessRefactoringTool):
    """
    Prints output to stdout.
    """

def __init__(self, fixers, options, explicit, nobackups, show_diffs):
        self.nobackups = nobackups
        self.show_diffs = show_diffs
        super(StdoutRefactoringTool, self).__init__(fixers, options, explicit)

def log_error(self, msg, *args, **kwargs):
        self.errors.append((msg, args, kwargs))
        self.logger.error(msg, *args, **kwargs)

def write_file(self, new_text, filename, old_text, encoding):
        if not self.nobackups:
            # Make backup
            backup = filename + ".bak"
            if os.path.lexists(backup):
                try:
                    os.remove(backup)
                except os.error, err:
                    self.log_message("Can't remove backup %s", backup)
            try:
                os.rename(filename, backup)
            except os.error, err:
                self.log_message("Can't rename %s to %s", filename, backup)
        # Actually write the new file
        write = super(StdoutRefactoringTool, self).write_file
        write(new_text, filename, old_text, encoding)
        if not self.nobackups:
            shutil.copymode(backup, filename)

def print_output(self, old, new, filename, equal):
        if equal:
            self.log_message("No changes to %s", filename)
        else:
            self.log_message("Refactored %s", filename)
            if self.show_diffs:
                diff_lines = diff_texts(old, new, filename)
                try:
                    if self.output_lock is not None:
                        with self.output_lock:
                            for line in diff_lines:
                                print line
                            sys.stdout.flush()
                    else:
                        for line in diff_lines:
                            print line
                except UnicodeEncodeError:
                    warn("couldn't encode %s's diff for your terminal" %
                         (filename,))
                    return

def warn(msg):
    print >> sys.stderr, "WARNING: %s" % (msg,)

def main(fixer_pkg, args=None):
    """Main 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).
    """
    # Set up option parser
    parser = optparse.OptionParser(usage="2to3 [options] file|dir ...")
    parser.add_option("-d", "--doctests_only", action="store_true",
                      help="Fix up doctests only")
    parser.add_option("-f", "--fix", action="append", default=[],
                      help="Each FIX specifies a transformation; default: all")
    parser.add_option("-j", "--processes", action="store", default=1,
                      type="int", help="Run 2to3 concurrently")
    parser.add_option("-x", "--nofix", action="append", default=[],
                      help="Prevent a fixer from being run.")
    parser.add_option("-l", "--list-fixes", action="store_true",
                      help="List available transformations")
    parser.add_option("-p", "--print-function", action="store_true",
                      help="Modify the grammar so that print() is a function")
    parser.add_option("-v", "--verbose", action="store_true",
                      help="More verbose logging")
    parser.add_option("--no-diffs", action="store_true",
                      help="Don't show diffs of the refactoring")
    parser.add_option("-w", "--write", action="store_true",
                      help="Write back modified files")
    parser.add_option("-n", "--nobackups", action="store_true", default=False,
                      help="Don't write backups for modified files.")

# Parse command line arguments
    refactor_stdin = False
    flags = {}
    options, args = parser.parse_args(args)
    if not options.write and options.no_diffs:
        warn("not writing files and not printing diffs; that's not very useful")
    if not options.write and options.nobackups:
        parser.error("Can't use -n without -w")
    if options.list_fixes:
        print "Available transformations for the -f/--fix option:"
        for fixname in refactor.get_all_fix_names(fixer_pkg):
            print fixname
        if not args:
            return 0
    if not args:
        print >> sys.stderr, "At least one file or directory argument required."
        print >> sys.stderr, "Use --help to show usage."
        return 2
    if "-" in args:
        refactor_stdin = True
        if options.write:
            print >> sys.stderr, "Can't write to stdin."
            return 2
    if options.print_function:
        flags["print_function"] = True

# Set up logging handler
    level = logging.DEBUG if options.verbose else logging.INFO
    logging.basicConfig(format='%(name)s: %(message)s', level=level)

# Initialize the refactoring tool
    avail_fixes = set(refactor.get_fixers_from_package(fixer_pkg))
    unwanted_fixes = set(fixer_pkg + ".fix_" + fix for fix in options.nofix)
    explicit = set()
    if options.fix:
        all_present = False
        for fix in options.fix:
            if fix == "all":
                all_present = True
            else:
                explicit.add(fixer_pkg + ".fix_" + fix)
        requested = avail_fixes.union(explicit) if all_present else explicit
    else:
        requested = avail_fixes.union(explicit)
    fixer_names = requested.difference(unwanted_fixes)
    rt = StdoutRefactoringTool(sorted(fixer_names), flags, sorted(explicit),
                               options.nobackups, not options.no_diffs)

# Refactor all files and directories passed as arguments
    if not rt.errors:
        if refactor_stdin:
            rt.refactor_stdin()
        else:
            try:
                rt.refactor(args, options.write, options.doctests_only,
                            options.processes)
            except refactor.MultiprocessingUnsupported:
                assert options.processes > 1
                print >> sys.stderr, "Sorry, -j isn't " \
                    "supported on this platform."
                return 1
        rt.summarize()

# Return error status (0 if rt.errors is zero)
    return int(bool(rt.errors))

cmd: