[PATCH 2/] lei up: further improve Maildir canonicalization

[Eric Wong <e@80x24.org>]

We want to be able to use "lei up ." when inside a Maildir.
We'll also relax Maildir/mbox basenames to be any non-'/'
character after converting relative paths to absolute.  The
old restriction on allowed characters was unnecessary and made
it impossible to reliably map "." when used as the sole argument
for "lei up".
---
 lib/PublicInbox/LeiSavedSearch.pm | 6 ++++--
 t/lei-q-save.t                    | 4 ++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/LeiSavedSearch.pm b/lib/PublicInbox/LeiSavedSearch.pm
index 0f632d93..e44779ee 100644
--- a/lib/PublicInbox/LeiSavedSearch.pm
+++ b/lib/PublicInbox/LeiSavedSearch.pm
@@ -24,9 +24,10 @@ sub lss_dir_for ($$) {
 		$$dstref = $$uri;
 		@n = ($uri->mailbox);
 	} else { # basename
-		@n = ($$dstref =~ m{([\w\-\.]+)/*\z});
 		$$dstref = $lei->rel2abs($$dstref);
 		$$dstref .= '/' if -d $$dstref;
+		$$dstref =~ tr!/!/!s;
+		@n = ($$dstref =~ m{([^/]+)/*\z});
 	}
 	push @n, sha256_hex($$dstref);
 	$lei->share_path . '/saved-searches/' . join('-', @n);
@@ -40,7 +41,8 @@ sub new {
 		my $f;
 		$dir = $dst;
 		output2lssdir($self, $lei, \$dir, \$f) or
-			return $lei->fail("--save was not used with $dst");
+			return $lei->fail("--save was not used with $dst cwd=".
+						$lei->rel2abs('.'));
 		$self->{-cfg} //= PublicInbox::Config::git_config_dump($f);
 		$self->{'-f'} = $f;
 	} else { # new saved search "lei q --save"
diff --git a/t/lei-q-save.t b/t/lei-q-save.t
index 6389825f..a8eda41e 100644
--- a/t/lei-q-save.t
+++ b/t/lei-q-save.t
@@ -29,6 +29,8 @@ test_lei(sub {
 	lei_ok [qw(import -q -F eml -)], undef, { 0 => \$in, %$lei_opt };
 	opendir my $dh, '.' or xbail "opendir .: $!";
 	lei_ok qw(up -q md -C), $home;
+	lei_ok qw(up -q . -C), "$home/md";
+	lei_ok qw(up -q), "/$home/md";
 	chdir($dh) or xbail "fchdir . $!";
 	my %after = map { $_ => 1 } glob("$home/md/cur/*");
 	is(delete $after{(keys(%before))[0]}, 1, 'original message kept');
@@ -51,5 +53,7 @@ test_lei(sub {
 	lei_ok [qw(import -q -F eml -)], undef, { 0 => \$in, %$lei_opt };
 	lei_ok([qw(up mbcl2)], undef, { -C => $home, %$lei_opt });
 	ok(-s "$home/mbcl2" > $size, 'size increased after up');
+
+	ok(!lei(qw(up -q), $home), 'up fails w/o --save');
 });
 done_testing;