lei inspect: support automatic pager in output

All commands which output non-trivial amounts of data to
the terminal should support this.

diff --git a/lib/PublicInbox/LeiInspect.pm b/lib/PublicInbox/LeiInspect.pm
index 307147649dd2254ba3dc7184d9a75b58b3004d64..9a7900c74dacdfa1056e40d1187534d5e8b6405b 100644 (file)
--- a/lib/PublicInbox/LeiInspect.pm
+++ b/lib/PublicInbox/LeiInspect.pm
@@ -155,9 +155,6 @@ sub inspect1 ($$$) {
 
 sub lei_inspect {
        my ($lei, @argv) = @_;
-       $lei->{1}->autoflush(0);
-       my $multi = scalar(@argv) > 1;
-       $lei->out('[') if $multi;
        $lei->{json} = ref(PublicInbox::Config::json())->new->utf8->canonical;
        $lei->{lse} = ($lei->{opt}->{external} // 1) ? do {
                my $sto = $lei->_lei_store;
@@ -166,6 +163,10 @@ sub lei_inspect {
        if ($lei->{opt}->{pretty} || -t $lei->{1}) {
                $lei->{json}->pretty(1)->indent(2);
        }
+       $lei->start_pager if -t $lei->{1};
+       $lei->{1}->autoflush(0);
+       my $multi = scalar(@argv) > 1;
+       $lei->out('[') if $multi;
        while (defined(my $x = shift @argv)) {
                inspect1($lei, $x, scalar(@argv)) or return;
        }