Re: [PATCH v3 4/4] checkpatch: check for misuse of the link tags

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Hi Thorsten,

On 31/03/2023 10:57, Thorsten Leemhuis wrote:
> On 30.03.23 20:13, Matthieu Baerts wrote:
>> "Link:" and "Closes:" tags have to be used with public URLs.
>>
>> It is difficult to make sure the link is public but at least we can
>> verify the tag is followed by 'http(s):'.
>>
>> With that, we avoid such a tag that is not allowed [1]:
>>
>>   Closes: <number>
>>
>> Link: https://lore.kernel.org/linux-doc/CAHk-=wh0v1EeDV3v8TzK81nDC40=XuTdY2MCr0xy3m3FiBV3+Q@xxxxxxxxxxxxxx/ [1]
>> Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
>> [...]
>> +# Check for misuse of the link tags
>> +		if ($in_commit_log &&
>> +		    $line =~ /^\s*(\w+:)\s*(\S+)/) {
>> +			my $tag = $1;
>> +			my $value = $2;
>> +			if ($tag =~ /^$link_tags_search$/ && $value !~ /^https?:/) {
>> +				WARN("COMMIT_LOG_WRONG_LINK",
>> +				     "'$tag' should be followed by a public http(s) link\n" . $herecurr);
>> +			}
>> +		}
>> +
> 
> I must be missing something here, but it looks to me like this is
> checked twice now. See this line in patch2 (which is changed there, but
> the check itself remains):
> 
>> } elsif ($rawlines[$linenr] !~ m{^link:\s*https?://}i) {

If I'm not mistaken, we had the following checks:

- after Reported-by, there is a link tag (Link:|Closes:)
- (link tags can take more than 75 chars)
- tags followed by "http(s)://" are restricted to link ones

Then not: link tags (Link:|Closes:) are followed by "http(s):".

But maybe I missed something, the checkpatch.pl script is quite big, I
would not be surprised :-)

Cheers,
Matt
-- 
Tessares | Belgium | Hybrid Access Solutions
www.tessares.net



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