Re: [PATCH] checkpatch: add --fix option for OPEN_BRACE issues

[Joe Perches]

On Wed, 2020-11-18 at 18:10 +0530, Dwaipayan Ray wrote:
> Brace style misuses of the following types are now
> corrected:
[]
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -3937,9 +3937,23 @@ sub process {
>  			#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
>  
> 
>  			if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
> -				ERROR("OPEN_BRACE",
> -				      "that open brace { should be on the previous line\n" .
> -					"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
> +				if (ERROR("OPEN_BRACE",
> +					  "that open brace { should be on the previous line\n" .
> +						"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n") &&
> +				    $fix) {
> +					my $line1 = $rawlines[$ctx_ln - 2];

How are you sure that in a patch context this line always starts with /^\+/ ?

> +					my $line2 = $rawlines[$ctx_ln - 1];
> +					fix_delete_line($ctx_ln - 2, $line1);
> +					fix_delete_line($ctx_ln - 1, $line2);
> +
> +					my $fixedline = rtrim($line1) . " {";
> +					fix_insert_line($ctx_ln - 1, $fixedline);
> +					$fixedline = $line2;
> +					$fixedline =~ s/^(.\s*)\{\s*/$1\t/;
> +					if ($fixedline !~ /^\+\s*$/) {
> +						fix_insert_line($ctx_ln - 1, $fixedline);
> +					}
> +				}