lei up: automatically use dt: for remote externals

Since we can't use maxuid for remote externals, automatically
maintaining the last time we got results and appending a dt:
range to the query will prevent HTTP(S) responses from getting
too big.

We could be using "rt:", but no stable release of public-inbox
supports it, yet, so we'll use dt:, instead.

By default, there's a two day fudge factor to account for MTA
downtime and delays; which is hopefully enough.  The fudge
factor may be changed per-invocation with the
--remote-fudge-factor=INTERVAL option

Since different externals can have different message transport
routes, "lastresult" entries are stored on a per-external basis.

1 files changed, 4 insertions, 0 deletions

diff --git a/t/lei-q-remote-import.t b/t/lei-q-remote-import.t
index 9131c01b..fdf6a11e 100644
--- a/t/lei-q-remote-import.t
+++ b/t/lei-q-remote-import.t
@@ -99,5 +99,9 @@ EOF
         lei_ok('up', "$ENV{HOME}/md");
         is_deeply(\@f, [ glob("$ENV{HOME}/md/*/*") ],
                 'lei up remote dedupe works on maildir');
+        my $edit_env = { VISUAL => 'cat' };
+        lei_ok([qw(edit-search), "$ENV{HOME}/md"], $edit_env);
+        like($lei_out, qr/^\Q[external "$url"]\E\n\s*lastresult = \d+/sm,
+                'lastresult set');
 });
 done_testing;