+++ /dev/null
-"""\r
-Main program for 2to3.\r
-"""\r
-\r
-from __future__ import with_statement\r
-\r
-import sys\r
-import os\r
-import difflib\r
-import logging\r
-import shutil\r
-import optparse\r
-\r
-from . import refactor\r
-\r
-\r
-def diff_texts(a, b, filename):\r
- """Return a unified diff of two strings."""\r
- a = a.splitlines()\r
- b = b.splitlines()\r
- return difflib.unified_diff(a, b, filename, filename,\r
- "(original)", "(refactored)",\r
- lineterm="")\r
-\r
-\r
-class StdoutRefactoringTool(refactor.MultiprocessRefactoringTool):\r
- """\r
- Prints output to stdout.\r
- """\r
-\r
- def __init__(self, fixers, options, explicit, nobackups, show_diffs):\r
- self.nobackups = nobackups\r
- self.show_diffs = show_diffs\r
- super(StdoutRefactoringTool, self).__init__(fixers, options, explicit)\r
-\r
- def log_error(self, msg, *args, **kwargs):\r
- self.errors.append((msg, args, kwargs))\r
- self.logger.error(msg, *args, **kwargs)\r
-\r
- def write_file(self, new_text, filename, old_text, encoding):\r
- if not self.nobackups:\r
- # Make backup\r
- backup = filename + ".bak"\r
- if os.path.lexists(backup):\r
- try:\r
- os.remove(backup)\r
- except os.error, err:\r
- self.log_message("Can't remove backup %s", backup)\r
- try:\r
- os.rename(filename, backup)\r
- except os.error, err:\r
- self.log_message("Can't rename %s to %s", filename, backup)\r
- # Actually write the new file\r
- write = super(StdoutRefactoringTool, self).write_file\r
- write(new_text, filename, old_text, encoding)\r
- if not self.nobackups:\r
- shutil.copymode(backup, filename)\r
-\r
- def print_output(self, old, new, filename, equal):\r
- if equal:\r
- self.log_message("No changes to %s", filename)\r
- else:\r
- self.log_message("Refactored %s", filename)\r
- if self.show_diffs:\r
- diff_lines = diff_texts(old, new, filename)\r
- try:\r
- if self.output_lock is not None:\r
- with self.output_lock:\r
- for line in diff_lines:\r
- print line\r
- sys.stdout.flush()\r
- else:\r
- for line in diff_lines:\r
- print line\r
- except UnicodeEncodeError:\r
- warn("couldn't encode %s's diff for your terminal" %\r
- (filename,))\r
- return\r
-\r
-\r
-def warn(msg):\r
- print >> sys.stderr, "WARNING: %s" % (msg,)\r
-\r
-\r
-def main(fixer_pkg, args=None):\r
- """Main program.\r
-\r
- Args:\r
- fixer_pkg: the name of a package where the fixers are located.\r
- args: optional; a list of command line arguments. If omitted,\r
- sys.argv[1:] is used.\r
-\r
- Returns a suggested exit status (0, 1, 2).\r
- """\r
- # Set up option parser\r
- parser = optparse.OptionParser(usage="2to3 [options] file|dir ...")\r
- parser.add_option("-d", "--doctests_only", action="store_true",\r
- help="Fix up doctests only")\r
- parser.add_option("-f", "--fix", action="append", default=[],\r
- help="Each FIX specifies a transformation; default: all")\r
- parser.add_option("-j", "--processes", action="store", default=1,\r
- type="int", help="Run 2to3 concurrently")\r
- parser.add_option("-x", "--nofix", action="append", default=[],\r
- help="Prevent a transformation from being run")\r
- parser.add_option("-l", "--list-fixes", action="store_true",\r
- help="List available transformations")\r
- parser.add_option("-p", "--print-function", action="store_true",\r
- help="Modify the grammar so that print() is a function")\r
- parser.add_option("-v", "--verbose", action="store_true",\r
- help="More verbose logging")\r
- parser.add_option("--no-diffs", action="store_true",\r
- help="Don't show diffs of the refactoring")\r
- parser.add_option("-w", "--write", action="store_true",\r
- help="Write back modified files")\r
- parser.add_option("-n", "--nobackups", action="store_true", default=False,\r
- help="Don't write backups for modified files")\r
-\r
- # Parse command line arguments\r
- refactor_stdin = False\r
- flags = {}\r
- options, args = parser.parse_args(args)\r
- if not options.write and options.no_diffs:\r
- warn("not writing files and not printing diffs; that's not very useful")\r
- if not options.write and options.nobackups:\r
- parser.error("Can't use -n without -w")\r
- if options.list_fixes:\r
- print "Available transformations for the -f/--fix option:"\r
- for fixname in refactor.get_all_fix_names(fixer_pkg):\r
- print fixname\r
- if not args:\r
- return 0\r
- if not args:\r
- print >> sys.stderr, "At least one file or directory argument required."\r
- print >> sys.stderr, "Use --help to show usage."\r
- return 2\r
- if "-" in args:\r
- refactor_stdin = True\r
- if options.write:\r
- print >> sys.stderr, "Can't write to stdin."\r
- return 2\r
- if options.print_function:\r
- flags["print_function"] = True\r
-\r
- # Set up logging handler\r
- level = logging.DEBUG if options.verbose else logging.INFO\r
- logging.basicConfig(format='%(name)s: %(message)s', level=level)\r
-\r
- # Initialize the refactoring tool\r
- avail_fixes = set(refactor.get_fixers_from_package(fixer_pkg))\r
- unwanted_fixes = set(fixer_pkg + ".fix_" + fix for fix in options.nofix)\r
- explicit = set()\r
- if options.fix:\r
- all_present = False\r
- for fix in options.fix:\r
- if fix == "all":\r
- all_present = True\r
- else:\r
- explicit.add(fixer_pkg + ".fix_" + fix)\r
- requested = avail_fixes.union(explicit) if all_present else explicit\r
- else:\r
- requested = avail_fixes.union(explicit)\r
- fixer_names = requested.difference(unwanted_fixes)\r
- rt = StdoutRefactoringTool(sorted(fixer_names), flags, sorted(explicit),\r
- options.nobackups, not options.no_diffs)\r
-\r
- # Refactor all files and directories passed as arguments\r
- if not rt.errors:\r
- if refactor_stdin:\r
- rt.refactor_stdin()\r
- else:\r
- try:\r
- rt.refactor(args, options.write, options.doctests_only,\r
- options.processes)\r
- except refactor.MultiprocessingUnsupported:\r
- assert options.processes > 1\r
- print >> sys.stderr, "Sorry, -j isn't " \\r
- "supported on this platform."\r
- return 1\r
- rt.summarize()\r
-\r
- # Return error status (0 if rt.errors is zero)\r
- return int(bool(rt.errors))\r
projects / mirror_edk2.git / blobdiff