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+#!/usr/bin/python
+#
+# Copyright (C) 2013 Free Software Foundation, Inc.
+#
+# This script is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+
+# This script adjusts the copyright notices at the top of source files
+# so that they have the form:
+#
+# Copyright XXXX-YYYY Free Software Foundation, Inc.
+#
+# It doesn't change code that is known to be maintained elsewhere or
+# that carries a non-FSF copyright.
+#
+# The script also doesn't change testsuite files, except those in
+# libstdc++-v3. This is because libstdc++-v3 has a conformance testsuite,
+# while most tests in other directories are just things that failed at some
+# point in the past.
+#
+# Pass --this-year to the script if you want it to add the current year
+# to all applicable notices. Pass --quilt if you are using quilt and
+# want files to be added to the quilt before being changed.
+#
+# By default the script will update all directories for which the
+# output has been vetted. You can instead pass the names of individual
+# directories, including those that haven't been approved. So:
+#
+# update-copyright.pl --this-year
+#
+# is the command that would be used at the beginning of a year to update
+# all copyright notices (and possibly at other times to check whether
+# new files have been added with old years). On the other hand:
+#
+# update-copyright.pl --this-year libjava
+#
+# would run the script on just libjava/.
+#
+# Note that things like --version output strings must be updated before
+# this script is run. There's already a separate procedure for that.
+
+import os
+import re
+import sys
+import time
+import subprocess
+
+class Errors:
+ def __init__ (self):
+ self.num_errors = 0
+
+ def report (self, filename, string):
+ if filename:
+ string = filename + ': ' + string
+ sys.stderr.write (string + '\n')
+ self.num_errors += 1
+
+ def ok (self):
+ return self.num_errors == 0
+
+class GenericFilter:
+ def __init__ (self):
+ self.skip_files = set()
+ self.skip_dirs = set()
+ self.skip_extensions = set()
+ self.fossilised_files = set()
+ self.own_files = set()
+
+ self.skip_files |= set ([
+ # Skip licence files.
+ 'COPYING',
+ 'COPYING.LIB',
+ 'COPYING3',
+ 'COPYING3.LIB',
+ 'LICENSE',
+ 'fdl.texi',
+ 'gpl_v3.texi',
+ 'fdl-1.3.xml',
+ 'gpl-3.0.xml',
+
+ # Skip auto- and libtool-related files
+ 'aclocal.m4',
+ 'compile',
+ 'config.guess',
+ 'config.sub',
+ 'depcomp',
+ 'install-sh',
+ 'libtool.m4',
+ 'ltmain.sh',
+ 'ltoptions.m4',
+ 'ltsugar.m4',
+ 'ltversion.m4',
+ 'lt~obsolete.m4',
+ 'missing',
+ 'mkdep',
+ 'mkinstalldirs',
+ 'move-if-change',
+ 'shlibpath.m4',
+ 'symlink-tree',
+ 'ylwrap',
+
+ # Skip FSF mission statement, etc.
+ 'gnu.texi',
+ 'funding.texi',
+ 'appendix_free.xml',
+
+ # Skip imported texinfo files.
+ 'texinfo.tex',
+ ])
+
+
+ def get_line_filter (self, dir, filename):
+ if filename.startswith ('ChangeLog'):
+ # Ignore references to copyright in changelog entries.
+ return re.compile ('\t')
+
+ return None
+
+ def skip_file (self, dir, filename):
+ if filename in self.skip_files:
+ return True
+
+ (base, extension) = os.path.splitext (os.path.join (dir, filename))
+ if extension in self.skip_extensions:
+ return True
+
+ if extension == '.in':
+ # Skip .in files produced by automake.
+ if os.path.exists (base + '.am'):
+ return True
+
+ # Skip files produced by autogen
+ if (os.path.exists (base + '.def')
+ and os.path.exists (base + '.tpl')):
+ return True
+
+ # Skip configure files produced by autoconf
+ if filename == 'configure':
+ if os.path.exists (base + '.ac'):
+ return True
+ if os.path.exists (base + '.in'):
+ return True
+
+ return False
+
+ def skip_dir (self, dir, subdir):
+ return subdir in self.skip_dirs
+
+ def is_fossilised_file (self, dir, filename):
+ if filename in self.fossilised_files:
+ return True
+ # Only touch current current ChangeLogs.
+ if filename != 'ChangeLog' and filename.find ('ChangeLog') >= 0:
+ return True
+ return False
+
+ def by_package_author (self, dir, filename):
+ return filename in self.own_files
+
+class Copyright:
+ def __init__ (self, errors):
+ self.errors = errors
+
+ # Characters in a range of years. Include '.' for typos.
+ ranges = '[0-9](?:[-0-9.,\s]|\s+and\s+)*[0-9]'
+
+ # Non-whitespace characters in a copyright holder's name.
+ name = '[\w.,-]'
+
+ # Matches one year.
+ self.year_re = re.compile ('[0-9]+')
+
+ # Matches part of a year or copyright holder.
+ self.continuation_re = re.compile (ranges + '|' + name)
+
+ # Matches a full copyright notice:
+ self.copyright_re = re.compile (
+ # 1: 'Copyright (C)', etc.
+ '([Cc]opyright'
+ '|[Cc]opyright\s+\([Cc]\)'
+ '|[Cc]opyright\s+%s'
+ '|[Cc]opyright\s+©'
+ '|[Cc]opyright\s+@copyright{}'
+ '|@set\s+copyright[\w-]+)'
+
+ # 2: the years. Include the whitespace in the year, so that
+ # we can remove any excess.
+ '(\s*(?:' + ranges + ',?'
+ '|@value\{[^{}]*\})\s*)'
+
+ # 3: 'by ', if used
+ '(by\s+)?'
+
+ # 4: the copyright holder. Don't allow multiple consecutive
+ # spaces, so that right-margin gloss doesn't get caught
+ # (e.g. gnat_ugn.texi).
+ '(' + name + '(?:\s?' + name + ')*)?')
+
+ # A regexp for notices that might have slipped by. Just matching
+ # 'copyright' is too noisy, and 'copyright.*[0-9]' falls foul of
+ # HTML header markers, so check for 'copyright' and two digits.
+ self.other_copyright_re = re.compile ('copyright.*[0-9][0-9]',
+ re.IGNORECASE)
+ self.comment_re = re.compile('#+|[*]+|;+|%+|//+|@c |dnl ')
+ self.holders = { '@copying': '@copying' }
+ self.holder_prefixes = set()
+
+ # True to 'quilt add' files before changing them.
+ self.use_quilt = False
+
+ # If set, force all notices to include this year.
+ self.max_year = None
+
+ # Goes after the year(s). Could be ', '.
+ self.separator = ' '
+
+ def add_package_author (self, holder, canon_form = None):
+ if not canon_form:
+ canon_form = holder
+ self.holders[holder] = canon_form
+ index = holder.find (' ')
+ while index >= 0:
+ self.holder_prefixes.add (holder[:index])
+ index = holder.find (' ', index + 1)
+
+ def add_external_author (self, holder):
+ self.holders[holder] = None
+
+ class BadYear():
+ def __init__ (self, year):
+ self.year = year
+
+ def __str__ (self):
+ return 'unrecognised year: ' + self.year
+
+ def parse_year (self, string):
+ year = int (string)
+ if len (string) == 2:
+ if year > 70:
+ return year + 1900
+ elif len (string) == 4:
+ return year
+ raise self.BadYear (string)
+
+ def year_range (self, years):
+ year_list = [self.parse_year (year)
+ for year in self.year_re.findall (years)]
+ assert len (year_list) > 0
+ return (min (year_list), max (year_list))
+
+ def set_use_quilt (self, use_quilt):
+ self.use_quilt = use_quilt
+
+ def include_year (self, year):
+ assert not self.max_year
+ self.max_year = year
+
+ def canonicalise_years (self, dir, filename, filter, years):
+ # Leave texinfo variables alone.
+ if years.startswith ('@value'):
+ return years
+
+ (min_year, max_year) = self.year_range (years)
+
+ # Update the upper bound, if enabled.
+ if self.max_year and not filter.is_fossilised_file (dir, filename):
+ max_year = max (max_year, self.max_year)
+
+ # Use a range.
+ if min_year == max_year:
+ return '%d' % min_year
+ else:
+ return '%d-%d' % (min_year, max_year)
+
+ def strip_continuation (self, line):
+ line = line.lstrip()
+ match = self.comment_re.match (line)
+ if match:
+ line = line[match.end():].lstrip()
+ return line
+
+ def is_complete (self, match):
+ holder = match.group (4)
+ return (holder
+ and (holder not in self.holder_prefixes
+ or holder in self.holders))
+
+ def update_copyright (self, dir, filename, filter, file, line, match):
+ orig_line = line
+ next_line = None
+ pathname = os.path.join (dir, filename)
+
+ intro = match.group (1)
+ if intro.startswith ('@set'):
+ # Texinfo year variables should always be on one line
+ after_years = line[match.end (2):].strip()
+ if after_years != '':
+ self.errors.report (pathname,
+ 'trailing characters in @set: '
+ + after_years)
+ return (False, orig_line, next_line)
+ else:
+ # If it looks like the copyright is incomplete, add the next line.
+ while not self.is_complete (match):
+ try:
+ next_line = file.next()
+ except StopIteration:
+ break
+
+ # If the next line doesn't look like a proper continuation,
+ # assume that what we've got is complete.
+ continuation = self.strip_continuation (next_line)
+ if not self.continuation_re.match (continuation):
+ break
+
+ # Merge the lines for matching purposes.
+ orig_line += next_line
+ line = line.rstrip() + ' ' + continuation
+ next_line = None
+
+ # Rematch with the longer line, at the original position.
+ match = self.copyright_re.match (line, match.start())
+ assert match
+
+ holder = match.group (4)
+
+ # Use the filter to test cases where markup is getting in the way.
+ if filter.by_package_author (dir, filename):
+ assert holder not in self.holders
+
+ elif not holder:
+ self.errors.report (pathname, 'missing copyright holder')
+ return (False, orig_line, next_line)
+
+ elif holder not in self.holders:
+ self.errors.report (pathname,
+ 'unrecognised copyright holder: ' + holder)
+ return (False, orig_line, next_line)
+
+ else:
+ # See whether the copyright is associated with the package
+ # author.
+ canon_form = self.holders[holder]
+ if not canon_form:
+ return (False, orig_line, next_line)
+
+ # Make sure the author is given in a consistent way.
+ line = (line[:match.start (4)]
+ + canon_form
+ + line[match.end (4):])
+
+ # Remove any 'by'
+ line = line[:match.start (3)] + line[match.end (3):]
+
+ # Update the copyright years.
+ years = match.group (2).strip()
+ try:
+ canon_form = self.canonicalise_years (dir, filename, filter, years)
+ except self.BadYear as e:
+ self.errors.report (pathname, str (e))
+ return (False, orig_line, next_line)
+
+ line = (line[:match.start (2)]
+ + ' ' + canon_form + self.separator
+ + line[match.end (2):])
+
+ # Use the standard (C) form.
+ if intro.endswith ('right'):
+ intro += ' (C)'
+ elif intro.endswith ('(c)'):
+ intro = intro[:-3] + '(C)'
+ line = line[:match.start (1)] + intro + line[match.end (1):]
+
+ # Strip trailing whitespace
+ line = line.rstrip() + '\n'
+
+ return (line != orig_line, line, next_line)
+
+ def process_file (self, dir, filename, filter):
+ pathname = os.path.join (dir, filename)
+ if filename.endswith ('.tmp'):
+ # Looks like something we tried to create before.
+ try:
+ os.remove (pathname)
+ except OSError:
+ pass
+ return
+
+ lines = []
+ changed = False
+ line_filter = filter.get_line_filter (dir, filename)
+ with open (pathname, 'r') as file:
+ prev = None
+ for line in file:
+ while line:
+ next_line = None
+ # Leave filtered-out lines alone.
+ if not (line_filter and line_filter.match (line)):
+ match = self.copyright_re.search (line)
+ if match:
+ res = self.update_copyright (dir, filename, filter,
+ file, line, match)
+ (this_changed, line, next_line) = res
+ changed = changed or this_changed
+
+ # Check for copyright lines that might have slipped by.
+ elif self.other_copyright_re.search (line):
+ self.errors.report (pathname,
+ 'unrecognised copyright: %s'
+ % line.strip())
+ lines.append (line)
+ line = next_line
+
+ # If something changed, write the new file out.
+ if changed and self.errors.ok():
+ tmp_pathname = pathname + '.tmp'
+ with open (tmp_pathname, 'w') as file:
+ for line in lines:
+ file.write (line)
+ if self.use_quilt:
+ subprocess.call (['quilt', 'add', pathname])
+ os.rename (tmp_pathname, pathname)
+
+ def process_tree (self, tree, filter):
+ for (dir, subdirs, filenames) in os.walk (tree):
+ # Don't recurse through directories that should be skipped.
+ for i in xrange (len (subdirs) - 1, -1, -1):
+ if filter.skip_dir (dir, subdirs[i]):
+ del subdirs[i]
+
+ # Handle the files in this directory.
+ for filename in filenames:
+ if filter.skip_file (dir, filename):
+ sys.stdout.write ('Skipping %s\n'
+ % os.path.join (dir, filename))
+ else:
+ self.process_file (dir, filename, filter)
+
+class CmdLine:
+ def __init__ (self, copyright = Copyright):
+ self.errors = Errors()
+ self.copyright = copyright (self.errors)
+ self.dirs = []
+ self.default_dirs = []
+ self.chosen_dirs = []
+ self.option_handlers = dict()
+ self.option_help = []
+
+ self.add_option ('--help', 'Print this help', self.o_help)
+ self.add_option ('--quilt', '"quilt add" files before changing them',
+ self.o_quilt)
+ self.add_option ('--this-year', 'Add the current year to every notice',
+ self.o_this_year)
+
+ def add_option (self, name, help, handler):
+ self.option_help.append ((name, help))
+ self.option_handlers[name] = handler
+
+ def add_dir (self, dir, filter = GenericFilter()):
+ self.dirs.append ((dir, filter))
+
+ def o_help (self, option = None):
+ sys.stdout.write ('Usage: %s [options] dir1 dir2...\n\n'
+ 'Options:\n' % sys.argv[0])
+ format = '%-15s %s\n'
+ for (what, help) in self.option_help:
+ sys.stdout.write (format % (what, help))
+ sys.stdout.write ('\nDirectories:\n')
+
+ format = '%-25s'
+ i = 0
+ for (dir, filter) in self.dirs:
+ i += 1
+ if i % 3 == 0 or i == len (self.dirs):
+ sys.stdout.write (dir + '\n')
+ else:
+ sys.stdout.write (format % dir)
+ sys.exit (0)
+
+ def o_quilt (self, option):
+ self.copyright.set_use_quilt (True)
+
+ def o_this_year (self, option):
+ self.copyright.include_year (time.localtime().tm_year)
+
+ def main (self):
+ for arg in sys.argv[1:]:
+ if arg[:1] != '-':
+ self.chosen_dirs.append (arg)
+ elif arg in self.option_handlers:
+ self.option_handlers[arg] (arg)
+ else:
+ self.errors.report (None, 'unrecognised option: ' + arg)
+ if self.errors.ok():
+ if len (self.chosen_dirs) == 0:
+ self.chosen_dirs = self.default_dirs
+ if len (self.chosen_dirs) == 0:
+ self.o_help()
+ else:
+ for chosen_dir in self.chosen_dirs:
+ canon_dir = os.path.join (chosen_dir, '')
+ count = 0
+ for (dir, filter) in self.dirs:
+ if (dir + os.sep).startswith (canon_dir):
+ count += 1
+ self.copyright.process_tree (dir, filter)
+ if count == 0:
+ self.errors.report (None, 'unrecognised directory: '
+ + chosen_dir)
+ sys.exit (0 if self.errors.ok() else 1)
+
+#----------------------------------------------------------------------------
+
+class TopLevelFilter (GenericFilter):
+ def skip_dir (self, dir, subdir):
+ return True
+
+class ConfigFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ def skip_file (self, dir, filename):
+ if filename.endswith ('.m4'):
+ pathname = os.path.join (dir, filename)
+ with open (pathname) as file:
+ # Skip files imported from gettext.
+ if file.readline().find ('gettext-') >= 0:
+ return True
+ return GenericFilter.skip_file (self, dir, filename)
+
+class GCCFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_files |= set ([
+ # Not part of GCC
+ 'math-68881.h',
+ ])
+
+ self.skip_dirs |= set ([
+ # Better not create a merge nightmare for the GNAT folks.
+ 'ada',
+
+ # Handled separately.
+ 'testsuite',
+ ])
+
+ self.skip_extensions |= set ([
+ # Maintained by the translation project.
+ '.po',
+
+ # Automatically-generated.
+ '.pot',
+ ])
+
+ self.fossilised_files |= set ([
+ # Old news won't be updated.
+ 'ONEWS',
+ ])
+
+class TestsuiteFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_extensions |= set ([
+ # Don't change the tests, which could be woend by anyone.
+ '.c',
+ '.C',
+ '.cc',
+ '.h',
+ '.hs',
+ '.f',
+ '.f90',
+ '.go',
+ '.inc',
+ '.java',
+ ])
+
+ def skip_file (self, dir, filename):
+ # g++.niklas/README contains historical copyright information
+ # and isn't updated.
+ if filename == 'README' and os.path.basename (dir) == 'g++.niklas':
+ return True
+ return GenericFilter.skip_file (self, dir, filename)
+
+class LibCppFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_extensions |= set ([
+ # Maintained by the translation project.
+ '.po',
+
+ # Automatically-generated.
+ '.pot',
+ ])
+
+class LibGCCFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_dirs |= set ([
+ # Imported from GLIBC.
+ 'soft-fp',
+ ])
+
+class LibJavaFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_dirs |= set ([
+ # Handled separately.
+ 'testsuite',
+
+ # Not really part of the library
+ 'contrib',
+
+ # Imported from upstream
+ 'classpath',
+ 'libltdl',
+ ])
+
+ def get_line_filter (self, dir, filename):
+ if filename == 'NameDecoder.h':
+ return re.compile ('.*NAME_COPYRIGHT')
+ if filename == 'ICC_Profile.h':
+ return re.compile ('.*icSigCopyrightTag')
+ return GenericFilter.get_line_filter (self, dir, filename)
+
+class LibMudflapFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_dirs |= set ([
+ # Handled separately.
+ 'testsuite',
+ ])
+
+class LibStdCxxFilter (GenericFilter):
+ def __init__ (self):
+ GenericFilter.__init__ (self)
+
+ self.skip_files |= set ([
+ # Contains no copyright of its own, but quotes the GPL.
+ 'intro.xml',
+ ])
+
+ self.skip_dirs |= set ([
+ # Contains automatically-generated sources.
+ 'html',
+
+ # The testsuite data files shouldn't be changed.
+ 'data',
+
+ # Contains imported images
+ 'images',
+ ])
+
+ self.own_files |= set ([
+ # Contains markup around the copyright owner.
+ 'spine.xml',
+ ])
+
+ def get_line_filter (self, dir, filename):
+ if filename == 'boost_concept_check.h':
+ return re.compile ('// \(C\) Copyright Jeremy Siek')
+ return GenericFilter.get_line_filter (self, dir, filename)
+
+class GCCCopyright (Copyright):
+ def __init__ (self, errors):
+ Copyright.__init__ (self, errors)
+
+ canon_fsf = 'Free Software Foundation, Inc.'
+ self.add_package_author ('Free Software Foundation', canon_fsf)
+ self.add_package_author ('Free Software Foundation.', canon_fsf)
+ self.add_package_author ('Free Software Foundation Inc.', canon_fsf)
+ self.add_package_author ('Free Software Foundation, Inc', canon_fsf)
+ self.add_package_author ('Free Software Foundation, Inc.', canon_fsf)
+ self.add_package_author ('The Free Software Foundation', canon_fsf)
+ self.add_package_author ('The Free Software Foundation, Inc.', canon_fsf)
+ self.add_package_author ('Software Foundation, Inc.', canon_fsf)
+
+ self.add_external_author ('ARM')
+ self.add_external_author ('AdaCore')
+ self.add_external_author ('Ami Tavory and Vladimir Dreizin, IBM-HRL.')
+ self.add_external_author ('Cavium Networks.')
+ self.add_external_author ('Faraday Technology Corp.')
+ self.add_external_author ('Florida State University')
+ self.add_external_author ('Greg Colvin and Beman Dawes.')
+ self.add_external_author ('Hewlett-Packard Company')
+ self.add_external_author ('Information Technology Industry Council.')
+ self.add_external_author ('James Theiler, Brian Gough')
+ self.add_external_author ('Makoto Matsumoto and Takuji Nishimura,')
+ self.add_external_author ('National Research Council of Canada.')
+ self.add_external_author ('Peter Dimov and Multi Media Ltd.')
+ self.add_external_author ('Peter Dimov')
+ self.add_external_author ('Pipeline Associates, Inc.')
+ self.add_external_author ('Regents of the University of California.')
+ self.add_external_author ('Silicon Graphics Computer Systems, Inc.')
+ self.add_external_author ('Silicon Graphics')
+ self.add_external_author ('Stephen L. Moshier')
+ self.add_external_author ('Sun Microsystems, Inc. All rights reserved.')
+ self.add_external_author ('The Go Authors. All rights reserved.')
+ self.add_external_author ('The Go Authors. All rights reserved.')
+ self.add_external_author ('The Go Authors.')
+ self.add_external_author ('The Regents of the University of California.')
+ self.add_external_author ('Unicode, Inc.')
+ self.add_external_author ('University of Toronto.')
+
+class GCCCmdLine (CmdLine):
+ def __init__ (self):
+ CmdLine.__init__ (self, GCCCopyright)
+
+ self.add_dir ('.', TopLevelFilter())
+ # boehm-gc is imported from upstream.
+ self.add_dir ('config', ConfigFilter())
+ # contrib isn't really part of GCC.
+ self.add_dir ('fixincludes')
+ self.add_dir ('gcc', GCCFilter())
+ self.add_dir (os.path.join ('gcc', 'testsuite'), TestsuiteFilter())
+ self.add_dir ('gnattools')
+ self.add_dir ('include')
+ self.add_dir ('libada')
+ self.add_dir ('libatomic')
+ self.add_dir ('libbacktrace')
+ self.add_dir ('libcpp', LibCppFilter())
+ self.add_dir ('libdecnumber')
+ # libffi is imported from upstream.
+ self.add_dir ('libgcc', LibGCCFilter())
+ self.add_dir ('libgfortran')
+ self.add_dir ('libgomp')
+ self.add_dir ('libiberty')
+ self.add_dir ('libitm')
+ self.add_dir ('libjava', LibJavaFilter())
+ self.add_dir (os.path.join ('libjava', 'testsuite'), TestsuiteFilter())
+ self.add_dir ('libmudflap', LibMudflapFilter())
+ self.add_dir (os.path.join ('libmudflap', 'testsuite'),
+ TestsuiteFilter())
+ self.add_dir ('libobjc')
+ self.add_dir ('libquadmath')
+ # libsanitiser is imported from upstream.
+ self.add_dir ('libssp')
+ self.add_dir ('libstdc++-v3', LibStdCxxFilter())
+ self.add_dir ('lto-plugin')
+ # zlib is imported from upstream.
+
+ self.default_dirs = [
+ 'gcc',
+ 'libada',
+ 'libatomic',
+ 'libbacktrace',
+ 'libcpp',
+ 'libdecnumber',
+ 'libgcc',
+ 'libgfortran',
+ 'libgomp',
+ 'libitm',
+ 'libmudflap',
+ 'libobjc',
+ 'libstdc++-v3',
+ ]
+
+GCCCmdLine().main()