Re: [Qemu-devel] [PATCH v2 4/4] get_maintainer.pl: restrict cases where it falls back to --git

[Paolo Bonzini <pbonzini@redhat.com>]

On 10/22/2014 02:56 PM, Markus Armbruster wrote:
> Paolo Bonzini <pbonzini@redhat.com> writes:
> 
>> The list emitted by --git-fallback often leads inexperienced contributors
>> to add pointless CCs.  While not discouraging usage of --git-fallback,
>> we want to:
>>
>> 1) disable the fallback if only some files lack a maintainer
>>
>>     $ scripts/get_maintainer.pl -f util/cutils.c hw/ide/core.c
>>     Kevin Wolf <kwolf@redhat.com> (odd fixer:IDE)
>>     Stefan Hajnoczi <stefanha@redhat.com> (odd fixer:IDE)
>>
>> This behavior is taken even if --git-fallback is specified.
>>
>> 2) warn the contributors about what we're doing, asking them to use their
>> common sense:
>>
>>     $ scripts/get_maintainer.pl -f util/cutils.c
>>     get_maintainer.pl: No maintainers found, printing recent contributors.
>>     get_maintainer.pl: Do not blindly cc: them on patches!  Use common sense.
>>
>>     Luiz Capitulino <lcapitulino@redhat.com> (commit_signer:1/2=50%)
>>     ...
>>     $
>>
>> Explicitly disabling the fallback will not result in the warning message:
>>
>>     $ scripts/get_maintainer.pl -f util/cutils.c   --no-git-fallback
>>     $ echo $?
>>     1
>>
>> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>> ---
>>  scripts/get_maintainer.pl | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
>> index 7c6d186..f4fee27 100755
>> --- a/scripts/get_maintainer.pl
>> +++ b/scripts/get_maintainer.pl
>> @@ -633,6 +633,15 @@ sub get_maintainers {
>>      }
>>  
>>      if ($email) {
>> +	if (! $interactive) {
>> +	    $email_git_fallback = 0 if @email_to > 0 || @list_to > 0 || $email_git || $email_git_blame;
>> +	    if ($email_git_fallback) {
>> +	        print STDERR "get_maintainer.pl: No maintainers found, printing recent contributors.\n";
>> +	        print STDERR "get_maintainer.pl: Do not blindly cc: them on patches!  Use common sense.\n";
>> +	        print STDERR "\n";
>> +            }
>> +        }
>> +
>>  	foreach my $file (@files) {
>>  	    if ($email_git || ($email_git_fallback &&
>>  			       !$exact_pattern_match_hash{$file})) {
> 
> I liked v1 better.

Me too, but we can start with this.  It's better than the status quo,
and the difference overall is small (the important part is disabling
fallback---with no message---on @email_to || @list_to).

Paolo