Re: [PATCH v2 2/2] checkpatch: allow Closes tags with links

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On Fri, 2023-03-24 at 19:52 +0100, Matthieu Baerts wrote:
> As a follow-up of the previous patch modifying the documentation to
> allow using the "Closes:" tag, checkpatch.pl is updated accordingly.
> 
> checkpatch.pl now mentions the "Closes:" tag between brackets to express
> the fact it should be used only if it makes sense.
> 
> While at it, checkpatch.pl will not complain if the "Closes" tag is used
> with a "long" line, similar to what is done with the "Link" tag.
> 
> Fixes: 76f381bb77a0 ("checkpatch: warn when unknown tags are used for links")
> Fixes: d7f1d71e5ef6 ("checkpatch: warn when Reported-by: is not followed by Link:")
> Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/373
> Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
> ---
>  scripts/checkpatch.pl | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index bd44d12965c9..d6376e0b68cc 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -3158,14 +3158,14 @@ sub process {
>  				}
>  			}
>  
> -# check if Reported-by: is followed by a Link:
> +# check if Reported-by: is followed by a Link: (or Closes:) tag
>  			if ($sign_off =~ /^reported(?:|-and-tested)-by:$/i) {
>  				if (!defined $lines[$linenr]) {
>  					WARN("BAD_REPORTED_BY_LINK",
> -					     "Reported-by: should be immediately followed by Link: to the report\n" . $herecurr . $rawlines[$linenr] . "\n");
> -				} elsif ($rawlines[$linenr] !~ m{^link:\s*https?://}i) {
> +					     "Reported-by: should be immediately followed by Link: (or Closes:) to the report\n" . $herecurr . $rawlines[$linenr] . "\n");
> +				} elsif ($rawlines[$linenr] !~ m{^(link|closes):\s*https?://}i) {

Please do not use an unnecessary capture group.

		(?:link|closes)

And because it's somewhat likely that _more_ of these keywords
could be added, perhaps use some array like deprecated_apis


>  					WARN("BAD_REPORTED_BY_LINK",
> -					     "Reported-by: should be immediately followed by Link: with a URL to the report\n" . $herecurr . $rawlines[$linenr] . "\n");
> +					     "Reported-by: should be immediately followed by Link: (or Closes:) with a URL to the report\n" . $herecurr . $rawlines[$linenr] . "\n");
>  				}
>  			}
>  		}
> @@ -3250,8 +3250,8 @@ sub process {
>  					# file delta changes
>  		      $line =~ /^\s*(?:[\w\.\-\+]*\/)++[\w\.\-\+]+:/ ||
>  					# filename then :
> -		      $line =~ /^\s*(?:Fixes:|Link:|$signature_tags)/i ||
> -					# A Fixes: or Link: line or signature tag line
> +		      $line =~ /^\s*(?:Fixes:|Link:|Closes:|$signature_tags)/i ||
> +					# A Fixes:, Link:, Closes: or signature tag line
>  		      $commit_log_possible_stack_dump)) {
>  			WARN("COMMIT_LOG_LONG_LINE",
>  			     "Possible unwrapped commit description (prefer a maximum 75 chars per line)\n" . $herecurr);
> @@ -3266,13 +3266,13 @@ sub process {
>  
>  # Check for odd tags before a URI/URL
>  		if ($in_commit_log &&
> -		    $line =~ /^\s*(\w+):\s*http/ && $1 ne 'Link') {
> +		    $line =~ /^\s*(\w+):\s*http/ && $1 ne 'Link' && $1 ne 'Closes') {
>  			if ($1 =~ /^v(?:ersion)?\d+/i) {
>  				WARN("COMMIT_LOG_VERSIONING",
>  				     "Patch version information should be after the --- line\n" . $herecurr);
>  			} else {
>  				WARN("COMMIT_LOG_USE_LINK",
> -				     "Unknown link reference '$1:', use 'Link:' instead\n" . $herecurr);
> +				     "Unknown link reference '$1:', use 'Link:' (or 'Closes:') instead\n" . $herecurr);
>  			}
>  		}
>  
> 




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