| blob | f9c96b0007921954bfbb055f769eeef8656b3142 |
1 #! /usr/bin/env python3
3 # Copyright (C) 2011-2021 Free Software Foundation, Inc.
4 #
5 # This file is part of GDB.
6 #
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
11 #
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 """copyright.py
22 This script updates the list of years in the copyright notices in
23 most files maintained by the GDB project.
25 Usage: cd src/gdb && python copyright.py
27 Always review the output of this script before committing it!
28 A useful command to review the output is:
29 % filterdiff -x \*.c -x \*.cc -x \*.h -x \*.exp updates.diff
30 This removes the bulk of the changes which are most likely to be correct.
31 """
33 import datetime
34 import locale
35 import os
37 import subprocess
38 import sys
42 """Return the list of files to update.
44 Assumes that the current working directory when called is the root
45 of the GDB source tree (NOT the gdb/ subdirectory!). The names of
46 the files are relative to that root directory.
47 """
48 result = []
51 ):
59 # Prune this directory from our search list.
67 # Ignore this file.
68 pass
71 return result
75 """Update the copyright header of the files in the given list.
77 We use gnulib's update-copyright script for that.
78 """
79 # We want to use year intervals in the copyright notices, and
80 # all years should be collapsed to one single year interval,
81 # even if there are "holes" in the list of years found in the
82 # original copyright notice (OK'ed by the FSF, case [gnu.org #719834]).
85 # Perform the update, and save the output in a string.
87 update_cmd += update_list
94 # Process the output. Typically, a lot of files do not have
95 # a copyright notice :-(. The update-copyright script prints
96 # a well defined warning when it did not find the copyright notice.
97 # For each of those, do a sanity check and see if they may in fact
98 # have one. For the files that are found not to have one, we filter
99 # the line out from the output, since there is nothing more to do,
100 # short of looking at each file and seeing which notice is appropriate.
101 # Too much work! (~4,000 files listed as of 2012-01-03).
112 # Unrecognized file format. !?!
117 """Check that the given file does not seem to have a copyright notice.
119 The filename is relative to the root directory.
120 This function assumes that the current working directory is that root
121 directory.
123 The algorigthm is fairly crude, meaning that it might return
124 some false positives. I do not think it will return any false
125 negatives... We might improve this function to handle more
126 complex cases later...
127 """
128 # For now, it may have a copyright notice if we find the word
129 # "Copyright" at the (reasonable) start of the given file, say
130 # 50 lines...
133 # We don't really know what encoding each file might be following,
134 # so just open the file as a byte stream. We only need to search
135 # for a pattern that should be the same regardless of encoding,
136 # so that should be good enough.
142 return True
145 return False
146 return False
150 """The main subprogram."""
162 # Remind the user that some files need to be updated by HAND...
167 "REMINDER: Multiple copyright headers must be updated by hand:"
179 ############################################################################
180 #
181 # Some constants, placed at the end because they take up a lot of room.
182 # The actual value of these constants is not significant to the understanding
183 # of the script.
184 #
185 ############################################################################
187 # Files which should not be modified, either because they are
188 # generated, non-FSF, or otherwise special (e.g. license text,
189 # or test cases which must be sensitive to line numbering).
190 #
191 # Filenames are relative to the root directory.
192 EXCLUDE_LIST = (
198 )
200 # Files which should not be modified, either because they are
201 # generated, non-FSF, or otherwise special (e.g. license text,
202 # or test cases which must be sensitive to line numbering).
203 #
204 # Matches any file or directory name anywhere. Use with caution.
205 # This is mostly for files that can be found in multiple directories.
206 # Eg: We want all files named COPYING to be left untouched.
208 EXCLUDE_ALL_LIST = (
211 )
213 # The list of files to update by hand.
214 BY_HAND = (
215 # Nothing at the moment :-).
216 )
218 # Files containing multiple copyright headers. This script is only
219 # fixing the first one it finds, so we need to finish the update
220 # by hand.
221 MULTIPLE_COPYRIGHT_HEADERS = (
225 )
227 # The list of file which have a copyright, but not head by the FSF.
228 # Filenames are relative to the root directory.
229 NOT_FSF_LIST = (
246 # Not a single file in sim/ppc/ appears to be copyright FSF :-(.
291 )