Re: Regression in git send-email parsing sendemail.* config values

[Eli Schwartz <eschwartz@archlinux.org>]

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On 9/5/21 8:04 PM, Ævar Arnfjörð Bjarmason wrote:
> 
> On Sun, Sep 05 2021, Eli Schwartz wrote:
> 
>> I recently noticed that git send-email was attempting to send emails
>> using the wrong email address. I have a global email configuration in
>> XDG_CONFIG_HOME, and a specific one set in the {repo}/.git/config of
>> some repos... this was trying to use the global configuration.
>>
>> `git config -l | grep ^sendemail.smtpserver=` reports two emails
> 
> Don't you mean s/emails/servers/, ditto "wrong email address" should be
> "the wrong server", right?


Considering the time of technically-it-is-day-now I wrote this email, I
suppose I should have proofread it before sending it the next day.

I'll claim some sort of self-defense in that the email username
(smtpuser) was different, in addition to the smtpserver. Yeah, that was it!

(also I am used to thinking of email servers as a subcomponent of email
addresses even though this is technically not true, shhh)


>> `git config --get sendemail.smtpserver` reports only the second,
>> repo-specific one
>>
>>
>> I bisected the issue to commit c95e3a3f0b8107b5dc7eac9dfdb9e5238280c9fb
>>
>>     send-email: move trivial config handling to Perl
>>
>>
>> Using this commit, git-send-email disagrees with git config --get on
>> which email to use.
>>
>> Using commit f4dc9432fd287bde9100488943baf3c6a04d90d1 immediately
>> preceding this commit, git send-email agrees with git config --get.
> 
> That's a pretty bad bug, sorry about that. I believe that the following
> patch should fix it (needs tests obviously). I.e. when we had N config
> keys we'd previously pick the normal "last key wins", which my
> c95e3a3f0b8107b5dc7eac9dfdb9e5238280c9fb changed to "first wins":
> 
> diff --git a/git-send-email.perl b/git-send-email.perl
> index e65d969d0bb..6c7ab3d2e91 100755
> --- a/git-send-email.perl
> +++ b/git-send-email.perl
> @@ -376,7 +376,7 @@ sub read_config {
>  			@$target = @values;
>  		}
>  		else {
> -			my $v = $known_keys->{$key}->[0];
> +			my $v = $known_keys->{$key}->[-1];
>  			next unless defined $v;
>  			next if $configured->{$setting}++;
>  			$$target = $v;
> 



Thanks, this worked for me and fixed my problem! Feel free to add my
tested-by.


-- 
Eli Schwartz
Arch Linux Bug Wrangler and Trusted User


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