Re: [PATCH v6 1/2] checkpatch: add verbose mode

From: Dwaipayan Ray
Date: Sun Feb 21 2021 - 13:36:26 EST


On Sun, Feb 21, 2021 at 11:36 PM Joe Perches <joe@xxxxxxxxxxx> wrote:
>
> On Sun, 2021-02-21 at 17:28 +0530, Dwaipayan Ray wrote:
> > Add a new verbose mode to checkpatch.pl to emit additional verbose
> > test descriptions. The verbose mode is optional and can be enabled
> > by the flag -v or --verbose.
>
> OK, maybe add color coding to the list_types output.

Okay, nice idea!
> Something like:
> ---
> scripts/checkpatch.pl | 61 ++++++++++++++++++++++++++++++++++++---------------
> 1 file changed, 43 insertions(+), 18 deletions(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index bbff13e0ca7e..ccd4a1bd73cb 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -163,14 +163,39 @@ sub list_types {
> my $text = <$script>;
> close($script);
>
> - my @types = ();
> + my %types = ();
> # Also catch when type or level is passed through a variable
> - for ($text =~ /(?:(?:\bCHK|\bWARN|\bERROR|&\{\$msg_level})\s*\(|\$msg_type\s*=)\s*"([^"]+)"/g) {
> - push (@types, $_);
> + while ($text =~ /\b(CHK|WARN|ERROR|&\{\$msg_level})\s*\(\s*"([^"]+)"/g) {
> + if (exists($types{$2})) {
> + $types{$2} .= ",$1" if ($types{$2} ne $1);
> + } else {
> + $types{$2} = $1;
> + }
> + }
> + print("#\tMessage type");
> + if ($color) {
> + print(" (color coding: ");
> + print(RED . "ERROR" . RESET);
> + print("|");
> + print(YELLOW . "WARNING" . RESET);
> + print("|");
> + print(GREEN . "CHECK" . RESET);
> + print("|");
> + print("Multiple levels" . RESET);
> + print(")");
> }
> - @types = sort(uniq(@types));
> - print("#\tMessage type\n\n");
> - foreach my $type (@types) {
> + print("\n\n");
> + foreach my $type (sort keys %types) {
> + if ($color) {
> + my $level = $types{$type};
> + if ($level eq 'ERROR') {
> + $type = RED . $type . RESET;
> + } elsif ($level eq 'WARN') {
> + $type = YELLOW . $type . RESET;
> + } elsif ($level eq 'CHK') {
> + $type = GREEN . $type . RESET;
> + }
> + }
> print(++$count . "\t" . $type . "\n");
> if ($verbose && exists($verbose_messages{$type})) {
> my $message = $verbose_messages{$type};
> @@ -301,6 +326,18 @@ help(0) if ($help);
> die "$P: --git cannot be used with --file or --fix\n" if ($git && ($file || $fix));
> die "$P: --verbose cannot be used with --terse\n" if ($verbose && $terse);
>
> +if ($color =~ /^[01]$/) {
> + $color = !$color;
> +} elsif ($color =~ /^always$/i) {
> + $color = 1;
> +} elsif ($color =~ /^never$/i) {
> + $color = 0;
> +} elsif ($color =~ /^auto$/i) {
> + $color = (-t STDOUT);
> +} else {
> + die "$P: Invalid color mode: $color\n";
> +}
> +
> load_docs() if ($verbose);
> list_types(0) if ($list_types);
>
> @@ -321,18 +358,6 @@ if ($#ARGV < 0) {
> push(@ARGV, '-');
> }
>
> -if ($color =~ /^[01]$/) {
> - $color = !$color;
> -} elsif ($color =~ /^always$/i) {
> - $color = 1;
> -} elsif ($color =~ /^never$/i) {
> - $color = 0;
> -} elsif ($color =~ /^auto$/i) {
> - $color = (-t STDOUT);
> -} else {
> - die "$P: Invalid color mode: $color\n";
> -}
> -
> # skip TAB size 1 to avoid additional checks on $tabsize - 1
> die "$P: Invalid TAB size: $tabsize\n" if ($tabsize < 2);
>
>

Sure, I will do something like this.
Are there any other improvements you can see right now
or will the coloring thing suffice?

Thanks,
Dwaipayan