[PATCH 1/2] lei forget-search: new command to forget saved searches

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

Readers may lose interest in subscription topics.  This lets
them avoid clutter by forgetting a saved search.

This does not and will not destroy the contents of an --output
mailbox.  In other words, this is similar to unsubscribing
from an Atom/RSS feed or NNTP group.

I've also decided we won't support 'mv-search', since it'll
probably be rarely used and "lei convert" can be used, instead.
---
 MANIFEST                           |  1 +
 lib/PublicInbox/LEI.pm             |  4 ++--
 lib/PublicInbox/LeiForgetSearch.pm | 32 ++++++++++++++++++++++++++++++
 t/lei-q-save.t                     | 11 ++++++++++
 4 files changed, 46 insertions(+), 2 deletions(-)
 create mode 100644 lib/PublicInbox/LeiForgetSearch.pm

diff --git a/MANIFEST b/MANIFEST
index f35c514c..d4055af4 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -191,6 +191,7 @@ lib/PublicInbox/LeiConvert.pm
 lib/PublicInbox/LeiCurl.pm
 lib/PublicInbox/LeiDedupe.pm
 lib/PublicInbox/LeiExternal.pm
+lib/PublicInbox/LeiForgetSearch.pm
 lib/PublicInbox/LeiHelp.pm
 lib/PublicInbox/LeiImport.pm
 lib/PublicInbox/LeiInit.pm
diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index c0385eb5..c3c79631 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -160,8 +160,8 @@ our %CMD = ( # sorted in order of importance/use:
 
 'ls-search' => [ '[PREFIX]', 'list saved search queries',
 		qw(format|f=s pretty l ascii z|0), @c_opt ],
-'rm-query' => [ 'QUERY_NAME', 'remove a saved search', @c_opt ],
-'mv-query' => [ qw(OLD_NAME NEW_NAME), 'rename a saved search', @c_opt ],
+'forget-search' => [ 'OUTPUT', 'forget a saved search',
+		qw(verbose|v+), @c_opt ],
 
 'plonk' => [ '--threads|--from=IDENT',
 	'exclude mail matching From: or threads from non-Message-ID searches',
diff --git a/lib/PublicInbox/LeiForgetSearch.pm b/lib/PublicInbox/LeiForgetSearch.pm
new file mode 100644
index 00000000..b5fe5fb1
--- /dev/null
+++ b/lib/PublicInbox/LeiForgetSearch.pm
@@ -0,0 +1,32 @@
+# Copyright (C) 2021 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# "lei forget-search" forget/remove a saved search "lei q --save"
+package PublicInbox::LeiForgetSearch;
+use strict;
+use v5.10.1;
+use PublicInbox::LeiSavedSearch;
+use PublicInbox::LeiUp;
+use File::Path ();
+use SelectSaver;
+
+sub lei_forget_search {
+	my ($lei, $out) = @_;
+	my $d = PublicInbox::LeiSavedSearch::lss_dir_for($lei, \$out);
+	if (-e $d) {
+		my $save;
+		my $opt = { safe => 1 };
+		if ($lei->{opt}->{verbose}) {
+			$opt->{verbose} = 1;
+			$save = SelectSaver->new($lei->{2});
+		}
+		File::Path::remove_tree($d, $opt);
+	} else {
+		$lei->fail("--save was not used with $out cwd=".
+					$lei->rel2abs('.'));
+	}
+}
+
+*_complete_forget_search = \&PublicInbox::LeiUp::_complete_up;
+
+1;
diff --git a/t/lei-q-save.t b/t/lei-q-save.t
index 58342171..5a2f7fff 100644
--- a/t/lei-q-save.t
+++ b/t/lei-q-save.t
@@ -110,5 +110,16 @@ test_lei(sub {
 	like($mb, qr/<qp\@example\.com>/, 'new result written w/ -a');
 
 	lei_ok(qw(up --all=local));
+
+	ok(!lei(qw(forget-search), "$home/bogus"), 'bogus forget');
+	lei_ok qw(_complete lei forget-search);
+	like($lei_out, qr/mbrd-aug/, 'forget-search completion');
+	lei_ok(qw(forget-search -v), "$home/mbrd-aug");
+	is($lei_out, '', 'no output');
+	like($lei_err, qr/\bmbrd-aug\b/, '-v (verbose) reported unlinks');
+	lei_ok qw(_complete lei forget-search);
+	unlike($lei_out, qr/mbrd-aug/,
+		'forget-search completion cleared after forget');
+	ok(!lei('up', "$home/mbrd-aug"), 'lei up fails after forget');
 });
 done_testing;