Re: [PATCH v2 1/2] sendemail: teach git-send-email to list aliases

> Since git-send-email.perl already configures GetOpt::Long with the
> 'pass_through' option, one possibility would be to invoke
> GetOptions() once for --list-aliases (or --dump-aliases), and then
> again for the normal options. Doing so may be a bit ugly; on the
> other hand, it does indicate pretty clearly that --list-aliases is a
> distinct "mode" of operation. On top of your patch, it might look
> something like this:
>
> --- 8< ---
> diff --git a/git-send-email.perl b/git-send-email.perl
> index ee14894..cada5ea 100755
> --- a/git-send-email.perl
> +++ b/git-send-email.perl
> @@ -296,6 +296,12 @@ $SIG{INT}  = \&signal_handler;
>
>  my $help;
>  my $rc = GetOptions("h" => \$help,
> +                   "list-aliases" => \$list_aliases);
> +usage() unless $rc;
> +die "--list-aliases incompatible with other options\n"
> +       if !$help and $list_aliases and @ARGV;
> +
> +$rc = GetOptions(
>                     "sender|from=s" => \$sender,
>                      "in-reply-to=s" => \$initial_reply_to,
>                     "subject=s" => \$initial_subject,
> @@ -349,7 +355,6 @@ my $rc = GetOptions("h" => \$help,
>                     "force" => \$force,
>                     "xmailer!" => \$use_xmailer,
>                     "no-xmailer" => sub {$use_xmailer = 0},
> -                    "list-aliases" => \$list_aliases,
>          );
>
>  usage() if $help;
> --- 8< ---
>
> Though, it may be overkill for this minor use-case.