Re: [PATCH v1 03/18] run-clang-tools: Add pass through checks and and header-filter arguments

[Nick Desaulniers]

On Fri, Sep 22, 2023 at 10:35 PM Ian Rogers <irogers@xxxxxxxxxx> wrote:
>
> Add a -checks argument to allow the checks passed to the clang-tool to
> be set on the command line.
>
> Add a pass through -header-filter option.
>
> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> ---
>  scripts/clang-tools/run-clang-tools.py | 34 ++++++++++++++++++++------
>  1 file changed, 27 insertions(+), 7 deletions(-)
>
> diff --git a/scripts/clang-tools/run-clang-tools.py b/scripts/clang-tools/run-clang-tools.py
> index 3266708a8658..5dfe03852cb4 100755
> --- a/scripts/clang-tools/run-clang-tools.py
> +++ b/scripts/clang-tools/run-clang-tools.py
> @@ -33,6 +33,11 @@ def parse_arguments():
>      path_help = "Path to the compilation database to parse"
>      parser.add_argument("path", type=str, help=path_help)
>
> +    checks_help = "Checks to pass to the analysis"
> +    parser.add_argument("-checks", type=str, default=None, help=checks_help)
> +    header_filter_help = "Pass the -header-filter value to the tool"
> +    parser.add_argument("-header-filter", type=str, default=None, help=header_filter_help)
> +
>      return parser.parse_args()
>
>
> @@ -45,14 +50,29 @@ def init(l, a):
>
>  def run_analysis(entry):
>      # Disable all checks, then re-enable the ones we want
> -    checks = []
> -    checks.append("-checks=-*")
> -    if args.type == "clang-tidy":
> -        checks.append("linuxkernel-*")
> +    global args
> +    checks = None
> +    if args.checks:
> +        checks = args.checks.split(',')
>      else:
> -        checks.append("clang-analyzer-*")
> -        checks.append("-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
> -    p = subprocess.run(["clang-tidy", "-p", args.path, ",".join(checks), entry["file"]],
> +        checks = ["-*"]
> +        if args.type == "clang-tidy":
> +            checks.append("linuxkernel-*")
> +        else:
> +            checks.append("clang-analyzer-*")
> +            checks.append("-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
> +    file = entry["file"]
> +    if not file.endswith(".c") and not file.endswith(".cpp"):
> +        with lock:
> +            print(f"Skipping non-C file: '{file}'", file=sys.stderr)
> +        return
> +    pargs = ["clang-tidy", "-p", args.path]
> +    if checks:

^ can `checks` ever be falsy here?  I don't think we need this
conditional check?

> +        pargs.append("-checks=" + ",".join(checks))
> +    if args.header_filter:
> +        pargs.append("-header-filter=" + args.header_filter)
> +    pargs.append(file)
> +    p = subprocess.run(pargs,
>                         stdout=subprocess.PIPE,
>                         stderr=subprocess.STDOUT,
>                         cwd=entry["directory"])
> --
> 2.42.0.515.g380fc7ccd1-goog
>


-- 
Thanks,
~Nick Desaulniers