1 files changed, 32 insertions, 19 deletions
diff --git a/tools/gcc-plugins/format-test.py b/tools/gcc-plugins/format-test.py
index df2437d5bc..ddf71aa0ef 100644
--- a/tools/gcc-plugins/format-test.py
+++ b/tools/gcc-plugins/format-test.py
@@ -4,58 +4,71 @@ import shlex
 import os
 import re
 
-os.environ['LC_ALL'] = 'C'
-os.environ['LANG'] = 'C'
+os.environ["LC_ALL"] = "C"
+os.environ["LANG"] = "C"
 for k in list(os.environ.keys()):
-    if k.startswith('LC_'):
+    if k.startswith("LC_"):
         os.environ.pop(k)
 
 if len(sys.argv) < 2:
-    sys.stderr.write('start as format-test.py gcc-123.45 [-options ...]\n')
+    sys.stderr.write("start as format-test.py gcc-123.45 [-options ...]\n")
     sys.exit(1)
 
-c_re = re.compile(r'//\s+(NO)?WARN')
+c_re = re.compile(r"//\s+(NO)?WARN")
 expect = {}
 lines = {}
 
-with open('format-test.c', 'r') as fd:
+with open("format-test.c", "r") as fd:
     for lno, line in enumerate(fd.readlines(), 1):
         lines[lno] = line.strip()
         m = c_re.search(line)
         if m is None:
             continue
         if m.group(1) is None:
-            expect[lno] = 'warn'
+            expect[lno] = "warn"
         else:
-            expect[lno] = 'nowarn'
+            expect[lno] = "nowarn"
 
-cmd = shlex.split('-Wall -Wextra -Wno-unused -fplugin=./frr-format.so -fno-diagnostics-show-caret -c -o format-test.o format-test.c')
+cmd = shlex.split(
+    "-Wall -Wextra -Wno-unused -fplugin=./frr-format.so -fno-diagnostics-show-caret -c -o format-test.o format-test.c"
+)
 
-gcc = subprocess.Popen(sys.argv[1:] + cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+gcc = subprocess.Popen(
+    sys.argv[1:] + cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+)
 sout, serr = gcc.communicate()
 gcc.wait()
 
-gcclines = serr.decode('UTF-8').splitlines()
-line_re = re.compile(r'^format-test\.c:(\d+):(.*)$')
+gcclines = serr.decode("UTF-8").splitlines()
+line_re = re.compile(r"^format-test\.c:(\d+):(.*)$")
 gcc_warns = {}
 
 for line in gcclines:
-    if line.find('In function') >= 0:
+    if line.find("In function") >= 0:
         continue
     m = line_re.match(line)
     if m is None:
-        sys.stderr.write('cannot process GCC output: %s\n' % line)
+        sys.stderr.write("cannot process GCC output: %s\n" % line)
         continue
 
     lno = int(m.group(1))
     gcc_warns.setdefault(lno, []).append(line)
 
 for lno, val in expect.items():
-    if val == 'nowarn' and lno in gcc_warns:
-        sys.stderr.write('unexpected gcc warning on line %d:\n\t%s\n\t%s\n' % (lno, lines[lno], '\n\t'.join(gcc_warns[lno])))
-    if val == 'warn' and lno not in gcc_warns:
-        sys.stderr.write('expected warning on line %d but did not get one\n\t%s\n' % (lno, lines[lno]))
+    if val == "nowarn" and lno in gcc_warns:
+        sys.stderr.write(
+            "unexpected gcc warning on line %d:\n\t%s\n\t%s\n"
+            % (lno, lines[lno], "\n\t".join(gcc_warns[lno]))
+        )
+    if val == "warn" and lno not in gcc_warns:
+        sys.stderr.write(
+            "expected warning on line %d but did not get one\n\t%s\n"
+            % (lno, lines[lno])
+        )
 
 leftover = set(gcc_warns.keys()) - set(expect.keys())
 for lno in sorted(leftover):
-    sys.stderr.write('unmarked gcc warning on line %d:\n\t%s\n\t%s\n' % (lno, lines[lno], '\n\t'.join(gcc_warns[lno])))
+    sys.stderr.write(
+        "unmarked gcc warning on line %d:\n\t%s\n\t%s\n"
+        % (lno, lines[lno], "\n\t".join(gcc_warns[lno]))
+    )