[PATCH] lei: fix globbing semantics to match end-of-filename

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

Globs such as `*/foo' should not match `*/foobar'.  I noticed
this while adding glob support to public-inbox-clone.

This may subtly break some existing cases, but there aren't many
lei users, yet, and globbing semantics should match what most
other glob-using programs, do...

We'll also make `lei ls-mail-sync' behave more consistently with
`lei ls-external', as far as the basename matching fallback
goes.
---
 lib/PublicInbox/LeiExternal.pm   | 4 ++--
 lib/PublicInbox/LeiLsExternal.pm | 1 +
 lib/PublicInbox/LeiLsMailSync.pm | 7 +++++--
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/PublicInbox/LeiExternal.pm b/lib/PublicInbox/LeiExternal.pm
index 30bb1a45..a6562e7f 100644
--- a/lib/PublicInbox/LeiExternal.pm
+++ b/lib/PublicInbox/LeiExternal.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # *-external commands of lei
@@ -88,7 +88,7 @@ sub get_externals {
 	my @cur = externals_each($self);
 	my $do_glob = !$self->{opt}->{globoff}; # glob by default
 	if ($do_glob && (my $re = glob2re($loc))) {
-		@m = grep(m!$re!, @cur);
+		@m = grep(m!$re/?\z!, @cur);
 		return @m if scalar(@m);
 	} elsif (index($loc, '/') < 0) { # exact basename match:
 		@m = grep(m!/\Q$loc\E/?\z!, @cur);
diff --git a/lib/PublicInbox/LeiLsExternal.pm b/lib/PublicInbox/LeiLsExternal.pm
index dd2eb2e7..e624cbd4 100644
--- a/lib/PublicInbox/LeiLsExternal.pm
+++ b/lib/PublicInbox/LeiLsExternal.pm
@@ -13,6 +13,7 @@ sub lei_ls_external {
 	my ($OFS, $ORS) = $lei->{opt}->{z} ? ("\0", "\0\0") : (" ", "\n");
 	$filter //= '*';
 	my $re = $do_glob ? $lei->glob2re($filter) : undef;
+	$re .= '/?\\z' if defined $re;
 	$re //= index($filter, '/') < 0 ?
 			qr!/\Q$filter\E/?\z! : # exact basename match
 			qr/\Q$filter\E/; # grep -F semantics
diff --git a/lib/PublicInbox/LeiLsMailSync.pm b/lib/PublicInbox/LeiLsMailSync.pm
index 2b167b1d..8da0c284 100644
--- a/lib/PublicInbox/LeiLsMailSync.pm
+++ b/lib/PublicInbox/LeiLsMailSync.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2021 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # front-end for the "lei ls-mail-sync" sub-command
@@ -12,7 +12,10 @@ sub lei_ls_mail_sync {
 	my $lms = $lei->lms or return;
 	my $opt = $lei->{opt};
 	my $re = $opt->{globoff} ? undef : $lei->glob2re($filter // '*');
-	$re //= qr/\Q$filter\E/;
+	$re .= '/?\\z' if defined $re;
+	$re //= index($filter, '/') < 0 ?
+			qr!/\Q$filter\E/?\z! : # exact basename match
+			qr/\Q$filter\E/; # grep -F semantics
 	my @f = $lms->folders;
 	@f = $opt->{'invert-match'} ? grep(!/$re/, @f) : grep(/$re/, @f);
 	if ($opt->{'local'} && !$opt->{remote}) {