1 # Copyright (C) 2021 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # pretends to be like LeiDedupe and also PublicInbox::Inbox
5 package PublicInbox::LeiSavedSearch;
8 use parent qw(PublicInbox::Lock);
10 use PublicInbox::OverIdx;
11 use PublicInbox::LeiSearch;
12 use PublicInbox::Config;
13 use PublicInbox::Spawn qw(run_die);
14 use PublicInbox::ContentHash qw(git_sha);
15 use PublicInbox::MID qw(mids_for_index);
16 use Digest::SHA qw(sha256_hex);
17 our $LOCAL_PFX = qr!\A(?:maildir|mh|mbox.+|mmdf|v2):!i; # TODO: put in LeiToMail?
19 # move this to PublicInbox::Config if other things use it:
20 my %cquote = ("\n" => '\\n', "\t" => '\\t', "\b" => '\\b');
21 sub cquote_val ($) { # cf. git-config(1)
23 $val =~ s/([\n\t\b])/$cquote{$1}/g;
27 sub ARRAY_FIELDS () { qw(only include exclude) }
29 qw(external local remote import-remote import-before threads)
32 sub SINGLE_FIELDS () { qw(limit dedupe output) }
34 sub lss_dir_for ($$;$) {
35 my ($lei, $dstref, $on_fs) = @_;
37 if ($$dstref =~ m,\Aimaps?://,i) { # already canonicalized
38 require PublicInbox::URIimap;
39 my $uri = PublicInbox::URIimap->new($$dstref)->canonical;
43 # can't use Cwd::abs_path since dirname($$dstref) may not exist
44 $$dstref = $lei->rel2abs($$dstref);
48 ($pfx) = ($pfx =~ m{([^/]+)/*\z}); # basename
49 my $lss_dir = $lei->share_path . '/saved-searches/';
50 my $d = "$lss_dir$pfx-".sha256_hex($$dstref);
52 # fall-back to looking up by st_ino + st_dev in case we're in
53 # a symlinked or bind-mounted path
54 if ($on_fs && !-d $d && -e $$dstref) {
56 my $want = pack('dd', @cur[1,0]); # st_ino + st_dev
58 for my $g ("$pfx-*", '*') {
59 my @maybe = glob("$lss_dir$g/lei.saved-search");
61 $c = $lei->cfg_dump($f) // next;
62 $o = $c->{'lei.q.output'} // next;
63 $o =~ s!$LOCAL_PFX!! or next;
64 @st = stat($o) or next;
65 next if pack('dd', @st[1,0]) ne $want;
66 $f =~ m!\A(.+?)/[^/]+\z! and return $1;
75 my $lss_dir = $lei->share_path.'/saved-searches';
76 return () unless -d $lss_dir;
77 # TODO: persist the cache? Use another format?
78 my $f = $lei->cache_dir."/saved-tmp.$$.".time.'.config';
79 open my $fh, '>', $f or die "open $f: $!";
80 print $fh "[include]\n";
81 for my $p (glob("$lss_dir/*/lei.saved-search")) {
82 print $fh "\tpath = ", cquote_val($p), "\n";
84 close $fh or die "close $f: $!";
85 my $cfg = $lei->cfg_dump($f);
87 my $out = $cfg ? $cfg->get_all('lei.q.output') : [];
94 sub translate_dedupe ($$) {
95 my ($self, $lei) = @_;
96 my $dd = $lei->{opt}->{dedupe} // 'content';
97 return 1 if $dd eq 'content'; # the default
98 return $self->{"-dedupe_$dd"} = 1 if ($dd eq 'oid' || $dd eq 'mid');
99 $lei->fail("--dedupe=$dd requires --no-save");
102 sub up { # updating existing saved search via "lei up"
103 my ($cls, $lei, $dst) = @_;
105 my $self = bless { ale => $lei->ale }, $cls;
107 output2lssdir($self, $lei, \$dir, \$f) or
108 return $lei->fail("--no-save was used with $dst cwd=".
110 $self->{-cfg} = $lei->cfg_dump($f) // return $lei->fail;
111 $self->{-ovf} = "$dir/over.sqlite3";
113 $self->{lock_path} = "$self->{-f}.flock";
117 sub new { # new saved search "lei q --save"
118 my ($cls, $lei) = @_;
119 my $self = bless { ale => $lei->ale }, $cls;
121 my $dst = $lei->{ovv}->{dst};
123 # canonicalize away relative paths into the config
124 if ($lei->{ovv}->{fmt} eq 'maildir' &&
125 $dst =~ m!(?:/*|\A)\.\.(?:/*|\z)! && !-d $dst) {
126 File::Path::make_path($dst);
127 $lei->{ovv}->{dst} = $dst = $lei->abs_path($dst);
129 my $dir = lss_dir_for($lei, \$dst);
130 File::Path::make_path($dir); # raises on error
132 my $f = $self->{'-f'} = "$dir/lei.saved-search";
133 translate_dedupe($self, $lei) or return;
134 open my $fh, '>', $f or return $lei->fail("open $f: $!");
135 my $sq_dst = PublicInbox::Config::squote_maybe($dst);
136 my $q = $lei->{mset_opt}->{q_raw} // die 'BUG: {q_raw} missing';
138 $q = join("\n", map { "\tq = ".cquote_val($_) } @$q);
140 $q = "\tq = ".cquote_val($q);
142 $dst = "$lei->{ovv}->{fmt}:$dst" if $dst !~ m!\Aimaps?://!i;
143 $lei->{opt}->{output} = $dst;
145 ; to refresh with new results, run: lei up $sq_dst
146 ; `maxuid' and `lastresult' lines are maintained by "lei up" for optimization
151 for my $k (ARRAY_FIELDS) {
152 my $ary = $lei->{opt}->{$k} // next;
154 print $fh "\t$k = ".cquote_val($x)."\n";
157 for my $k (BOOL_FIELDS) {
158 my $val = $lei->{opt}->{$k} // next;
159 print $fh "\t$k = ".($val ? 1 : 0)."\n";
161 for my $k (SINGLE_FIELDS) {
162 my $val = $lei->{opt}->{$k} // next;
163 print $fh "\t$k = $val\n";
165 close($fh) or return $lei->fail("close $f: $!");
166 $self->{lock_path} = "$self->{-f}.flock";
167 $self->{-ovf} = "$dir/over.sqlite3";
171 sub description { $_[0]->{qstr} } # for WWW
173 sub cfg_set { # called by LeiXSearch
174 my ($self, @args) = @_;
175 my $lk = $self->lock_for_scope; # git-config doesn't wait
176 run_die([qw(git config -f), $self->{'-f'}, @args]);
179 # drop-in for LeiDedupe API
181 my ($self, $eml, $smsg) = @_;
182 my $oidx = $self->{oidx} // die 'BUG: no {oidx}';
184 if ($self->{-dedupe_mid}) {
185 $lk //= $self->lock_for_scope_fast;
186 for my $mid (@{mids_for_index($eml)}) {
188 return 1 if $oidx->next_by_mid($mid, \$id, \$prv);
191 my $blob = $smsg ? $smsg->{blob} : git_sha(1, $eml)->hexdigest;
192 $lk //= $self->lock_for_scope_fast;
193 return 1 if $oidx->blob_exists($blob);
194 if (my $xoids = PublicInbox::LeiSearch::xoids_for($self, $eml, 1)) {
195 for my $docid (values %$xoids) {
196 $oidx->add_xref3($docid, -1, $blob, '.');
199 if ($self->{-dedupe_oid}) {
200 exists $xoids->{$blob} ? 1 : undef;
205 # n.b. above xoids_for fills out eml->{-lei_fake_mid} if needed
207 $smsg = bless {}, 'PublicInbox::Smsg';
209 $smsg->populate($eml);
211 $smsg->{blob} //= $blob;
213 $smsg->{num} = $oidx->adj_counter('eidx_docid', '+');
214 $oidx->add_overview($eml, $smsg);
215 $oidx->add_xref3($smsg->{num}, -1, $blob, '.');
223 $self->{oidx} //= do {
224 my $creat = !-f $self->{-ovf};
225 my $lk = $self->lock_for_scope; # git-config doesn't wait
226 my $oidx = PublicInbox::OverIdx->new($self->{-ovf});
227 $oidx->{-no_fsync} = 1;
230 $oidx->{dbh}->do('PRAGMA journal_mode = WAL');
231 $oidx->eidx_prep; # for xref3
237 sub over { $_[0]->{oidx} } # for xoids_for
239 # don't use ale->git directly since is_dup is called inside
240 # ale->git->cat_async callbacks
241 sub git { $_[0]->{git} //= PublicInbox::Git->new($_[0]->{ale}->git->{git_dir}) }
246 my $lockfh = delete $self->{lockfh}; # from lock_for_scope_fast;
247 my $oidx = delete($self->{oidx}) // return;
253 prepare_dedupe($self);
254 my $lk = $self->lock_for_scope_fast;
255 for my $t (qw(xref3 over id2num)) {
256 $self->{oidx}->{dbh}->do("DELETE FROM $t");
267 # find existing directory containing a `lei.saved-search' file based on
268 # $dir_ref which is an output
270 my ($self, $lei, $dir_ref, $fn_ref) = @_;
271 my $dst = $$dir_ref; # imap://$MAILBOX, /path/to/maildir, /path/to/mbox
272 my $dir = lss_dir_for($lei, \$dst, 1);
273 my $f = "$dir/lei.saved-search";
275 $self->{-cfg} = $lei->cfg_dump($f) // return;
283 # cf. LeiDedupe->has_entries
285 my $oidx = $_[0]->{oidx} // die 'BUG: no {oidx}';
286 my @n = $oidx->{dbh}->selectrow_array('SELECT num FROM over LIMIT 1');
287 scalar(@n) ? 1 : undef;
291 *nntp_url = \&cloneurl;
292 *base_url = \&PublicInbox::Inbox::base_url;
293 *smsg_eml = \&PublicInbox::Inbox::smsg_eml;
294 *smsg_by_mid = \&PublicInbox::Inbox::smsg_by_mid;
295 *msg_by_mid = \&PublicInbox::Inbox::msg_by_mid;
296 *modified = \&PublicInbox::Inbox::modified;
297 *recent = \&PublicInbox::Inbox::recent;
298 *max_git_epoch = *nntp_usable = *msg_by_path = \&mm; # undef
299 *isrch = *search = \&mm; # TODO
300 *DESTROY = \&pause_dedupe;