Transform filter-rtags-warnings to filter-clang-warnings.

2019-06-25  Martin Liska  <mliska@suse.cz>

	contrib/filter-clang-warnings.py: Transform from
	filter-rtags-warnings.py.

From-SVN: r272652

diff --git a/ChangeLog b/ChangeLog
index fb836d45de0aff44c92f845f434356db8a9abecd..22a671aa3a068ac4b0de472e15b081225e18acf6 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-06-25  Martin Liska  <mliska@suse.cz>
+
+       contrib/filter-clang-warnings.py: Transform from
+       filter-rtags-warnings.py.
+
 2019-06-15  Tom Tromey  <tom@tromey.com>
 
        * configure.ac (host_libs): Add gnulib.

diff --git a/contrib/filter-clang-warnings.py b/contrib/filter-clang-warnings.py
new file mode 100755 (executable)
index 0000000..15cca5f
--- /dev/null
+++ b/contrib/filter-clang-warnings.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python3
+#
+# Script to analyze warnings produced by clang.
+#
+# This file is part of GCC.
+#
+# GCC 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.
+#
+# GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.  */
+#
+#
+#
+
+import sys
+import argparse
+
+def skip_warning(filename, message):
+    ignores = {
+            '': ['-Warray-bounds', '-Wmismatched-tags', 'gcc_gfc: -Wignored-attributes', '-Wchar-subscripts',
+                'string literal (potentially insecure): -Wformat-security', '-Wdeprecated-register',
+                '-Wvarargs', 'keyword is hidden by macro definition', "but the argument has type 'char *': -Wformat-pedantic",
+                '-Wnested-anon-types', 'qualifier in explicit instantiation of', 'attribute argument not supported: asm_fprintf',
+                'when in C++ mode, this behavior is deprecated', '-Wignored-attributes', '-Wgnu-zero-variadic-macro-arguments',
+                '-Wformat-security'],
+            'insn-modes.c': ['-Wshift-count-overflow'],
+            'insn-emit.c': ['-Wtautological-compare'],
+            'insn-attrtab.c': ['-Wparentheses-equality'],
+            'gimple-match.c': ['-Wunused-', '-Wtautological-compare'],
+            'generic-match.c': ['-Wunused-', '-Wtautological-compare'],
+            'i386.md': ['-Wparentheses-equality', '-Wtautological-compare'],
+            'sse.md': ['-Wparentheses-equality', '-Wtautological-compare'],
+            'genautomata.c': ['-Wstring-plus-int']
+
+    }
+
+    for name, ignores in ignores.items():
+        for i in ignores:
+            if name in filename and i in message:
+                return True
+
+    return False
+
+parser = argparse.ArgumentParser()
+parser.add_argument('log', help = 'Log file with clang warnings')
+args = parser.parse_args()
+
+lines = [l.strip() for l in open(args.log)]
+total = 0
+messages = []
+for l in lines:
+    token = ': warning: '
+    i = l.find(token)
+    if i != -1:
+        location = l[:i]
+        message = l[i + len(token):]
+        if not skip_warning(location, message):
+            total += 1
+            messages.append(l)
+
+for l in sorted(messages):
+    print(l)
+print('\nTotal warnings: %d' % total)

diff --git a/contrib/filter-rtags-warnings.py b/contrib/filter-rtags-warnings.py
deleted file mode 100755 (executable)
index ee27e7c..0000000
--- a/contrib/filter-rtags-warnings.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env python3
-#
-# Script to analyze warnings produced by rtags command (using LLVM):
-# rc --diagnose-all --synchronous-diagnostics --json
-#
-# This file is part of GCC.
-#
-# GCC 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.
-#
-# GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-# WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.  */
-#
-#
-#
-
-import sys
-import json
-import argparse
-
-def skip_warning(filename, warning):
-    ignores = {
-            '': ['-Warray-bounds', '-Wmismatched-tags', 'gcc_gfc: -Wignored-attributes', '-Wchar-subscripts',
-                'string literal (potentially insecure): -Wformat-security', '-Wdeprecated-register',
-                '-Wvarargs', 'keyword is hidden by macro definition', "but the argument has type 'char *': -Wformat-pedantic",
-                '-Wnested-anon-types', 'qualifier in explicit instantiation of', 'attribute argument not supported: asm_fprintf'],
-            'insn-modes.c': ['-Wshift-count-overflow'],
-            'insn-emit.c': ['-Wtautological-compare'],
-            'insn-attrtab.c': ['-Wparentheses-equality'],
-            'gimple-match.c': ['-Wunused-', '-Wtautological-compare'],
-            'generic-match.c': ['-Wunused-', '-Wtautological-compare'],
-    }
-
-    message = warning['message']
-
-    if warning['type'] == 'fixit':
-        return True
-
-    for name, ignores in ignores.items():
-        for i in ignores:
-            if name in filename and i in message:
-                return True
-
-    return False
-
-parser = argparse.ArgumentParser()
-parser.add_argument('json_file', help = 'Rtags JSON file with diagnostics')
-parser.add_argument('-n', '--no-filter', action = 'store_true', help = 'No filter')
-
-args = parser.parse_args()
-
-data = json.load(open(args.json_file))
-file_warnings = data['checkStyle']
-
-total = 0
-for filename, warnings in file_warnings.items():
-    if warnings:
-        for w in warnings:
-            if args.no_filter or not skip_warning(filename, w):
-                total += 1
-                print('%s:%d:%d:%s' % (filename, w['line'], w['column'], w['message']))
-
-print('Total: %d' % total)