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