Mercurial > hg > CbC > CbC_gcc
comparison contrib/mklog.py @ 152:2b5abeee2509
update gcc11
author | anatofuz |
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date | Mon, 25 May 2020 07:50:57 +0900 |
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145:1830386684a0 | 152:2b5abeee2509 |
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1 #!/usr/bin/env python3 | |
2 | |
3 # Copyright (C) 2020 Free Software Foundation, Inc. | |
4 # | |
5 # This file is part of GCC. | |
6 # | |
7 # GCC 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, or (at your option) | |
10 # any later version. | |
11 # | |
12 # GCC 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 GCC; see the file COPYING. If not, write to | |
19 # the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
20 # Boston, MA 02110-1301, USA. | |
21 | |
22 # This script parses a .diff file generated with 'diff -up' or 'diff -cp' | |
23 # and adds a skeleton ChangeLog file to the file. It does not try to be | |
24 # too smart when parsing function names, but it produces a reasonable | |
25 # approximation. | |
26 # | |
27 # Author: Martin Liska <mliska@suse.cz> | |
28 | |
29 import argparse | |
30 import os | |
31 import re | |
32 import sys | |
33 | |
34 import requests | |
35 | |
36 from unidiff import PatchSet | |
37 | |
38 pr_regex = re.compile(r'(\/(\/|\*)|[Cc*!])\s+(?P<pr>PR [a-z+-]+\/[0-9]+)') | |
39 dr_regex = re.compile(r'(\/(\/|\*)|[Cc*!])\s+(?P<dr>DR [0-9]+)') | |
40 identifier_regex = re.compile(r'^([a-zA-Z0-9_#].*)') | |
41 comment_regex = re.compile(r'^\/\*') | |
42 struct_regex = re.compile(r'^(class|struct|union|enum)\s+' | |
43 r'(GTY\(.*\)\s+)?([a-zA-Z0-9_]+)') | |
44 macro_regex = re.compile(r'#\s*(define|undef)\s+([a-zA-Z0-9_]+)') | |
45 super_macro_regex = re.compile(r'^DEF[A-Z0-9_]+\s*\(([a-zA-Z0-9_]+)') | |
46 fn_regex = re.compile(r'([a-zA-Z_][^()\s]*)\s*\([^*]') | |
47 template_and_param_regex = re.compile(r'<[^<>]*>') | |
48 bugzilla_url = 'https://gcc.gnu.org/bugzilla/rest.cgi/bug?id=%s&' \ | |
49 'include_fields=summary' | |
50 | |
51 function_extensions = set(['.c', '.cpp', '.C', '.cc', '.h', '.inc', '.def']) | |
52 | |
53 help_message = """\ | |
54 Generate ChangeLog template for PATCH. | |
55 PATCH must be generated using diff(1)'s -up or -cp options | |
56 (or their equivalent in git). | |
57 """ | |
58 | |
59 script_folder = os.path.realpath(__file__) | |
60 gcc_root = os.path.dirname(os.path.dirname(script_folder)) | |
61 | |
62 | |
63 def find_changelog(path): | |
64 folder = os.path.split(path)[0] | |
65 while True: | |
66 if os.path.exists(os.path.join(gcc_root, folder, 'ChangeLog')): | |
67 return folder | |
68 folder = os.path.dirname(folder) | |
69 if folder == '': | |
70 return folder | |
71 raise AssertionError() | |
72 | |
73 | |
74 def extract_function_name(line): | |
75 if comment_regex.match(line): | |
76 return None | |
77 m = struct_regex.search(line) | |
78 if m: | |
79 # Struct declaration | |
80 return m.group(1) + ' ' + m.group(3) | |
81 m = macro_regex.search(line) | |
82 if m: | |
83 # Macro definition | |
84 return m.group(2) | |
85 m = super_macro_regex.search(line) | |
86 if m: | |
87 # Supermacro | |
88 return m.group(1) | |
89 m = fn_regex.search(line) | |
90 if m: | |
91 # Discard template and function parameters. | |
92 fn = m.group(1) | |
93 fn = re.sub(template_and_param_regex, '', fn) | |
94 return fn.rstrip() | |
95 return None | |
96 | |
97 | |
98 def try_add_function(functions, line): | |
99 fn = extract_function_name(line) | |
100 if fn and fn not in functions: | |
101 functions.append(fn) | |
102 return bool(fn) | |
103 | |
104 | |
105 def sort_changelog_files(changed_file): | |
106 return (changed_file.is_added_file, changed_file.is_removed_file) | |
107 | |
108 | |
109 def get_pr_titles(prs): | |
110 output = '' | |
111 for pr in prs: | |
112 id = pr.split('/')[-1] | |
113 r = requests.get(bugzilla_url % id) | |
114 bugs = r.json()['bugs'] | |
115 if len(bugs) == 1: | |
116 output += '%s - %s\n' % (pr, bugs[0]['summary']) | |
117 print(output) | |
118 if output: | |
119 output += '\n' | |
120 return output | |
121 | |
122 | |
123 def generate_changelog(data, no_functions=False, fill_pr_titles=False): | |
124 changelogs = {} | |
125 changelog_list = [] | |
126 prs = [] | |
127 out = '' | |
128 diff = PatchSet(data) | |
129 | |
130 for file in diff: | |
131 changelog = find_changelog(file.path) | |
132 if changelog not in changelogs: | |
133 changelogs[changelog] = [] | |
134 changelog_list.append(changelog) | |
135 changelogs[changelog].append(file) | |
136 | |
137 # Extract PR entries from newly added tests | |
138 if 'testsuite' in file.path and file.is_added_file: | |
139 for line in list(file)[0]: | |
140 m = pr_regex.search(line.value) | |
141 if m: | |
142 pr = m.group('pr') | |
143 if pr not in prs: | |
144 prs.append(pr) | |
145 else: | |
146 m = dr_regex.search(line.value) | |
147 if m: | |
148 dr = m.group('dr') | |
149 if dr not in prs: | |
150 prs.append(dr) | |
151 else: | |
152 break | |
153 | |
154 if fill_pr_titles: | |
155 out += get_pr_titles(prs) | |
156 | |
157 # sort ChangeLog so that 'testsuite' is at the end | |
158 for changelog in sorted(changelog_list, key=lambda x: 'testsuite' in x): | |
159 files = changelogs[changelog] | |
160 out += '%s:\n' % os.path.join(changelog, 'ChangeLog') | |
161 out += '\n' | |
162 for pr in prs: | |
163 out += '\t%s\n' % pr | |
164 # new and deleted files should be at the end | |
165 for file in sorted(files, key=sort_changelog_files): | |
166 assert file.path.startswith(changelog) | |
167 in_tests = 'testsuite' in changelog or 'testsuite' in file.path | |
168 relative_path = file.path[len(changelog):].lstrip('/') | |
169 functions = [] | |
170 if file.is_added_file: | |
171 msg = 'New test' if in_tests else 'New file' | |
172 out += '\t* %s: %s.\n' % (relative_path, msg) | |
173 elif file.is_removed_file: | |
174 out += '\t* %s: Removed.\n' % (relative_path) | |
175 else: | |
176 if not no_functions: | |
177 for hunk in file: | |
178 # Do not add function names for testsuite files | |
179 extension = os.path.splitext(relative_path)[1] | |
180 if not in_tests and extension in function_extensions: | |
181 last_fn = None | |
182 modified_visited = False | |
183 success = False | |
184 for line in hunk: | |
185 m = identifier_regex.match(line.value) | |
186 if line.is_added or line.is_removed: | |
187 if not line.value.strip(): | |
188 continue | |
189 modified_visited = True | |
190 if m and try_add_function(functions, | |
191 m.group(1)): | |
192 last_fn = None | |
193 success = True | |
194 elif line.is_context: | |
195 if last_fn and modified_visited: | |
196 try_add_function(functions, last_fn) | |
197 last_fn = None | |
198 modified_visited = False | |
199 success = True | |
200 elif m: | |
201 last_fn = m.group(1) | |
202 modified_visited = False | |
203 if not success: | |
204 try_add_function(functions, | |
205 hunk.section_header) | |
206 if functions: | |
207 out += '\t* %s (%s):\n' % (relative_path, functions[0]) | |
208 for fn in functions[1:]: | |
209 out += '\t(%s):\n' % fn | |
210 else: | |
211 out += '\t* %s:\n' % relative_path | |
212 out += '\n' | |
213 return out | |
214 | |
215 | |
216 if __name__ == '__main__': | |
217 parser = argparse.ArgumentParser(description=help_message) | |
218 parser.add_argument('input', nargs='?', | |
219 help='Patch file (or missing, read standard input)') | |
220 parser.add_argument('-s', '--no-functions', action='store_true', | |
221 help='Do not generate function names in ChangeLogs') | |
222 parser.add_argument('-p', '--fill-up-bug-titles', action='store_true', | |
223 help='Download title of mentioned PRs') | |
224 args = parser.parse_args() | |
225 if args.input == '-': | |
226 args.input = None | |
227 | |
228 input = open(args.input) if args.input else sys.stdin | |
229 data = input.read() | |
230 output = generate_changelog(data, args.no_functions, | |
231 args.fill_up_bug_titles) | |
232 print(output, end='') |