user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 7/7] lei import: keep sync info for Maildir and IMAP folders
Date: Sat, 24 Apr 2021 09:28:46 +0000	[thread overview]
Message-ID: <20210424092846.726-8-e@80x24.org> (raw)
In-Reply-To: <20210424092846.726-1-e@80x24.org>

We aren't using it, yet, but the plan is to be able to use
this information to propagate keyword changes back to IMAP
and Maildir folders using some to-be-implemented command.

"lei inspect" is a half-baked new command to make testing this
change easier.  It will be updated to support more SQLite+Xapian
introspection duties in the future, including public-inbox
things independent of lei.
---
 MANIFEST                      |  1 +
 lib/PublicInbox/LEI.pm        | 16 ++++--
 lib/PublicInbox/LeiImport.pm  | 22 ++++++--
 lib/PublicInbox/LeiInput.pm   | 41 +++++++++++++--
 lib/PublicInbox/LeiInspect.pm | 96 +++++++++++++++++++++++++++++++++++
 lib/PublicInbox/LeiSearch.pm  |  7 +++
 lib/PublicInbox/LeiStore.pm   | 20 +++++++-
 t/lei-import-imap.t           | 27 +++++++++-
 t/lei-import-maildir.t        | 21 ++++++++
 9 files changed, 238 insertions(+), 13 deletions(-)
 create mode 100644 lib/PublicInbox/LeiInspect.pm

diff --git a/MANIFEST b/MANIFEST
index abaf54b0..79d393c5 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -199,6 +199,7 @@ lib/PublicInbox/LeiHelp.pm
 lib/PublicInbox/LeiImport.pm
 lib/PublicInbox/LeiInit.pm
 lib/PublicInbox/LeiInput.pm
+lib/PublicInbox/LeiInspect.pm
 lib/PublicInbox/LeiLsLabel.pm
 lib/PublicInbox/LeiLsSearch.pm
 lib/PublicInbox/LeiMailSync.pm
diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index 9f49fc03..39278de6 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -64,9 +64,13 @@ sub opt_dash ($$) {
 	($spec, '<>' => $cb, $GLP_PASS) # for Getopt::Long
 }
 
-sub rel2abs ($$) {
+# rel2abs preserves symlinks in parent, unlike abs_path
+sub rel2abs {
 	my ($self, $p) = @_;
-	return $p if index($p, '/') == 0; # already absolute
+	if (index($p, '/') == 0) { # already absolute
+		$p =~ tr!/!/!s; # squeeze redundant slashes
+		return $p;
+	}
 	my $pwd = $self->{env}->{PWD};
 	my $cwd;
 	if (defined $pwd) {
@@ -84,6 +88,9 @@ sub rel2abs ($$) {
 	File::Spec->rel2abs($p, $pwd);
 }
 
+# abs_path resolves symlinks in parent iff all parents exist
+sub abs_path { Cwd::abs_path($_[1]) // rel2abs(@_) }
+
 sub share_path ($) { # $HOME/.local/share/lei/$FOO
 	my ($self) = @_;
 	rel2abs($self, ($self->{env}->{XDG_DATA_HOME} //
@@ -193,7 +200,7 @@ our %CMD = ( # sorted in order of importance/use:
 'import' => [ 'LOCATION...|--stdin',
 	'one-time import/update from URL or filesystem',
 	qw(stdin| offset=i recursive|r exclude=s include|I=s
-	lock=s@ in-format|F=s kw! verbose|v+ incremental!), @c_opt ],
+	lock=s@ in-format|F=s kw! verbose|v+ incremental! sync!), @c_opt ],
 'convert' => [ 'LOCATION...|--stdin',
 	'one-time conversion from URL or filesystem to another format',
 	qw(stdin| in-format|F=s out-format|f=s output|mfolder|o=s
@@ -205,6 +212,9 @@ our %CMD = ( # sorted in order of importance/use:
 		'git-config(1) wrapper for '._config_path($_[0]);
 	}, qw(config-file|system|global|file|f=s), # for conflict detection
 	 qw(c=s@ C=s@), pass_through('git config') ],
+'inspect' => [ 'ITEMS...', 'inspect lei/store and/or local external',
+	qw(pretty ascii dir=s), @c_opt ],
+
 'init' => [ '[DIRNAME]', sub {
 	"initialize storage, default: ".store_path($_[0]);
 	}, @c_opt ],
diff --git a/lib/PublicInbox/LeiImport.pm b/lib/PublicInbox/LeiImport.pm
index e3c756e8..daaa6753 100644
--- a/lib/PublicInbox/LeiImport.pm
+++ b/lib/PublicInbox/LeiImport.pm
@@ -13,7 +13,6 @@ sub input_eml_cb { # used by PublicInbox::LeiInput::input_fh
 	my ($self, $eml, $vmd) = @_;
 	my $xoids = $self->{lei}->{ale}->xoids_for($eml);
 	if (my $all_vmd = $self->{all_vmd}) {
-		$vmd //= {};
 		@$vmd{keys %$all_vmd} = values %$all_vmd;
 	}
 	$self->{lei}->{sto}->ipc_do('set_eml', $eml, $vmd, $xoids);
@@ -31,11 +30,26 @@ sub input_mbox_cb { # MboxReader callback
 
 sub input_maildir_cb { # maildir_each_eml cb
 	my ($f, $kw, $eml, $self) = @_;
-	input_eml_cb($self, $eml, $self->{-import_kw} ? { kw => $kw } : undef);
+	my $vmd = $self->{-import_kw} ? { kw => $kw } : undef;
+	if ($self->{-mail_sync}) {
+		if ($f =~ m!\A(.+?)/(?:new|cur)/([^/]+)\z!) { # ugh...
+			$vmd->{sync_info} = [ "maildir:$1", \(my $n = $2) ];
+		} else {
+			warn "E: $f was not from a Maildir?\n";
+		}
+	}
+	input_eml_cb($self, $eml, $vmd);
 }
 
-sub input_net_cb { # imap_each, nntp_each cb
+sub input_imap_cb { # imap_each
 	my ($url, $uid, $kw, $eml, $self) = @_;
+	my $vmd = $self->{-import_kw} ? { kw => $kw } : undef;
+	$vmd->{sync_info} = [ $url, $uid ] if $self->{-mail_sync};
+	input_eml_cb($self, $eml, $vmd);
+}
+
+sub input_nntp_cb { # nntp_each
+	my ($url, $num, $kw, $eml, $self) = @_;
 	input_eml_cb($self, $eml, $self->{-import_kw} ? { kw => $kw } : undef);
 }
 
@@ -61,6 +75,8 @@ sub lei_import { # the main "lei import" method
 	return $lei->fail(join("\n", @{$vmd_mod->{err}})) if $vmd_mod->{err};
 	$self->{all_vmd} = $vmd_mod if scalar keys %$vmd_mod;
 	$self->prepare_inputs($lei, \@inputs) or return;
+	$self->{-mail_sync} = $lei->{opt}->{sync} // 1;
+
 	$lei->ale; # initialize for workers to read
 	my $j = $lei->{opt}->{jobs} // scalar(@{$self->{inputs}}) || 1;
 	if (my $net = $lei->{net}) {
diff --git a/lib/PublicInbox/LeiInput.pm b/lib/PublicInbox/LeiInput.pm
index 0114f5ee..d11d23d4 100644
--- a/lib/PublicInbox/LeiInput.pm
+++ b/lib/PublicInbox/LeiInput.pm
@@ -83,11 +83,13 @@ sub input_path_url {
 	my $ifmt = lc($lei->{opt}->{'in-format'} // '');
 	# TODO auto-detect?
 	if ($input =~ m!\Aimaps?://!i) {
-		$lei->{net}->imap_each($input, $self->can('input_net_cb'),
+		$lei->{net}->imap_each($input, $self->can('input_imap_cb') //
+						$self->can('input_net_cb'),
 					$self, @args);
 		return;
 	} elsif ($input =~ m!\A(?:nntps?|s?news)://!i) {
-		$lei->{net}->nntp_each($input, $self->can('input_net_cb'),
+		$lei->{net}->nntp_each($input, $self->can('input_nntp_cb') //
+						$self->can('input_net_cb'),
 					$self, @args);
 		return;
 	}
@@ -130,11 +132,13 @@ EOM
 sub prepare_inputs { # returns undef on error
 	my ($self, $lei, $inputs) = @_;
 	my $in_fmt = $lei->{opt}->{'in-format'};
+	my $sync = $lei->{opt}->{sync} ? {} : undef; # using LeiMailSync
 	if ($lei->{opt}->{stdin}) {
 		@$inputs and return
 			$lei->fail("--stdin and @$inputs do not mix");
 		check_input_format($lei) or return;
 		push @$inputs, '/dev/stdin';
+		push @{$sync->{no}}, '/dev/stdin' if $sync;
 	}
 	my $net = $lei->{net}; # NetWriter may be created by l2m
 	my (@f, @d);
@@ -145,6 +149,13 @@ sub prepare_inputs { # returns undef on error
 			require PublicInbox::NetReader;
 			$net //= PublicInbox::NetReader->new;
 			$net->add_url($input);
+			if ($sync) {
+				if ($input =~ m!\Aimaps?://!) {
+					push @{$sync->{ok}}, $input;
+				} else {
+					push @{$sync->{no}}, $input;
+				}
+			}
 		} elsif ($input_path =~ s/\A([a-z0-9]+)://is) {
 			my $ifmt = lc $1;
 			if (($in_fmt // $ifmt) ne $ifmt) {
@@ -152,6 +163,13 @@ sub prepare_inputs { # returns undef on error
 --in-format=$in_fmt and `$ifmt:' conflict
 
 			}
+			if ($sync) {
+				if ($ifmt =~ /\A(?:maildir|mh)\z/i) {
+					push @{$sync->{ok}}, $input;
+				} else {
+					push @{$sync->{no}}, $input;
+				}
+			}
 			my $devfd = $lei->path_to_fd($input_path) // return;
 			if ($devfd >= 0 || (-f $input_path || -p _)) {
 				require PublicInbox::MboxLock;
@@ -162,6 +180,7 @@ sub prepare_inputs { # returns undef on error
 				require PublicInbox::MdirReader;
 				$ifmt eq 'maildir' or return
 					$lei->fail("$ifmt not supported");
+				$input = $lei->abs_path($input) if $sync;
 			} else {
 				return $lei->fail("Unable to handle $input");
 			}
@@ -170,12 +189,18 @@ sub prepare_inputs { # returns undef on error
 $input is `eml', not --in-format=$in_fmt
 
 			require PublicInbox::Eml;
+			push @{$sync->{no}}, $input if $sync;
 		} else {
 			my $devfd = $lei->path_to_fd($input) // return;
 			if ($devfd >= 0 || -f $input || -p _) {
-				push @f, $input
+				push @{$sync->{no}}, $input if $sync;
+				push @f, $input;
 			} elsif (-d $input) {
-				push @d, $input
+				if ($sync) {
+					$input = $lei->abs_path($input);
+					push @{$sync->{ok}}, $input;
+				}
+				push @d, $input;
 			} else {
 				return $lei->fail("Unable to handle $input")
 			}
@@ -185,6 +210,14 @@ $input is `eml', not --in-format=$in_fmt
 	if (@d) { # TODO: check for MH vs Maildir, here
 		require PublicInbox::MdirReader;
 	}
+	if ($sync && $sync->{no}) {
+		return $lei->fail(<<"") if !$sync->{ok};
+--sync specified but no inputs support it
+
+		# non-fatal if some inputs support support sync
+		$lei->err("# --sync will only be used for @{$sync->{ok}}");
+		$lei->err("# --sync is not supported for: @{$sync->{no}}");
+	}
 	if ($net) {
 		if (my $err = $net->errors) {
 			return $lei->fail($err);
diff --git a/lib/PublicInbox/LeiInspect.pm b/lib/PublicInbox/LeiInspect.pm
new file mode 100644
index 00000000..6cfc8083
--- /dev/null
+++ b/lib/PublicInbox/LeiInspect.pm
@@ -0,0 +1,96 @@
+# Copyright (C) 2021 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# "lei inspect" general purpose inspector for stuff in SQLite and
+# Xapian.  Will eventually be useful with plain public-inboxes,
+# not just lei/store.  This is totally half-baked at the moment
+# but useful for testing.
+package PublicInbox::LeiInspect;
+use strict;
+use v5.10.1;
+use PublicInbox::Config;
+
+sub inspect_blob ($$) {
+	my ($lei, $oidhex) = @_;
+	my $ent = {};
+	if (my $lse = $lei->{lse}) {
+		my @docids = $lse ? $lse->over->blob_exists($oidhex) : ();
+		$ent->{'lei/store'} = \@docids if @docids;
+		my $lms = $lse->lms;
+		if (my $loc = $lms ? $lms->locations_for($oidhex) : undef) {
+			$ent->{sync} = $loc;
+		}
+	}
+	$ent;
+}
+
+sub inspect_sync_folder ($$) {
+	my ($lei, $folder) = @_;
+	my $ent = {};
+	my $lse = $lei->{lse} or return $ent;
+	my $lms = $lse->lms or return $ent;
+	my @folders;
+	if ($folder =~ m!\Aimaps?://!i) {
+		require PublicInbox::URIimap;
+		my $uri = PublicInbox::URIimap->new($folder)->canonical;
+		if (defined($uri->uidvalidity)) {
+			$folders[0] = $$uri;
+		} else {
+			my @maybe = $lms->folders($$uri);
+			@folders = grep {
+				my $u = PublicInbox::URIimap->new($_);
+				$uri->uidvalidity($u->uidvalidity);
+				$$uri eq $$u;
+			} @maybe;
+		}
+	} elsif ($folder =~ m!\A(maildir|mh):(.+)!i) {
+		my $type = $1;
+		$folders[0] = "$type:".$lei->abs_path($2);
+	} elsif (-d $folder) {
+		$folders[0] = 'maildir:'.$lei->abs_path($folder);
+	} else {
+		$lei->fail("$folder not understood");
+	}
+	$lei->qerr("# no folders match $folder (non-fatal)") if !@folders;
+	for my $f (@folders) {
+		$ent->{$f} = $lms->location_stats($f); # may be undef
+	}
+	$ent
+}
+
+sub inspect1 ($$$) {
+	my ($lei, $item, $more) = @_;
+	my $ent;
+	if ($item =~ /\Ablob:(.+)/) {
+		$ent = inspect_blob($lei, $1);
+	} elsif ($item =~ m!\Aimaps?://!i ||
+			$item =~ m!\A(?:maildir|mh):!i || -d $item) {
+		$ent = inspect_sync_folder($lei, $item);
+	} else { # TODO: more things
+		return $lei->fail("$item not understood");
+	}
+	$lei->out($lei->{json}->encode($ent));
+	$lei->out(',') if $more;
+	1;
+}
+
+sub lei_inspect {
+	my ($lei, @argv) = @_;
+	$lei->{1}->autoflush(0);
+	my $multi = scalar(@argv) > 1;
+	$lei->out('[') if $multi;
+	$lei->{json} = ref(PublicInbox::Config::json())->new->utf8->canonical;
+	$lei->{lse} = ($lei->{opt}->{external} // 1) ? do {
+		my $sto = $lei->_lei_store;
+		$sto ? $sto->search : undef;
+	} : undef;
+	if ($lei->{opt}->{pretty} || -t $lei->{1}) {
+		$lei->{json}->pretty(1)->indent(2);
+	}
+	while (defined(my $x = shift @argv)) {
+		inspect1($lei, $x, scalar(@argv)) or return;
+	}
+	$lei->out(']') if $multi;
+}
+
+1;
diff --git a/lib/PublicInbox/LeiSearch.pm b/lib/PublicInbox/LeiSearch.pm
index ff615d89..cd28a700 100644
--- a/lib/PublicInbox/LeiSearch.pm
+++ b/lib/PublicInbox/LeiSearch.pm
@@ -137,4 +137,11 @@ sub qparse_new {
 	$qp
 }
 
+sub lms {
+	my ($self) = @_;
+	require PublicInbox::LeiMailSync;
+	my $f = "$self->{topdir}/mail_sync.sqlite3";
+	-f $f ? PublicInbox::LeiMailSync->new($f) : undef;
+}
+
 1;
diff --git a/lib/PublicInbox/LeiStore.pm b/lib/PublicInbox/LeiStore.pm
index f8371abf..1cf7ffc1 100644
--- a/lib/PublicInbox/LeiStore.pm
+++ b/lib/PublicInbox/LeiStore.pm
@@ -190,13 +190,28 @@ sub remove_eml_vmd {
 	\@docids;
 }
 
+sub set_sync_info ($$$) {
+	my ($self, $oidhex, $sync_info) = @_;
+	($self->{lms} //= do {
+		require PublicInbox::LeiMailSync;
+		my $f = "$self->{priv_eidx}->{topdir}/mail_sync.sqlite3";
+		my $lms = PublicInbox::LeiMailSync->new($f);
+		$lms->lms_begin;
+		$lms;
+	})->set_src($oidhex, @$sync_info);
+}
+
 sub add_eml {
 	my ($self, $eml, $vmd, $xoids) = @_;
 	my $im = $self->importer; # may create new epoch
 	my ($eidx, $tl) = eidx_init($self); # updates/writes alternates file
 	my $oidx = $eidx->{oidx}; # PublicInbox::Import::add checks this
 	my $smsg = bless { -oidx => $oidx }, 'PublicInbox::Smsg';
-	$im->add($eml, undef, $smsg) or return; # duplicate returns undef
+	my $im_mark = $im->add($eml, undef, $smsg);
+	if ($vmd && $vmd->{sync_info}) {
+		set_sync_info($self, $smsg->{blob}, $vmd->{sync_info});
+	}
+	$im_mark or return; # duplicate blob returns undef
 
 	local $self->{current_info} = $smsg->{blob};
 	my $vivify_xvmd = delete($smsg->{-vivify_xvmd}) // []; # exact matches
@@ -379,6 +394,9 @@ sub done {
 			warn $err;
 		}
 	}
+	if (my $lms = delete $self->{lms}) {
+		$lms->lms_commit;
+	}
 	$self->{priv_eidx}->done; # V2Writable::done
 	xchg_stderr($self);
 	die $err if $err;
diff --git a/t/lei-import-imap.t b/t/lei-import-imap.t
index 490ea9be..4a3bd6d8 100644
--- a/t/lei-import-imap.t
+++ b/t/lei-import-imap.t
@@ -12,10 +12,28 @@ my $td = start_script($cmd, $env, { 3 => $sock }) or BAIL_OUT("-imapd: $?");
 my $host_port = tcp_host_port($sock);
 undef $sock;
 test_lei({ tmpdir => $tmpdir }, sub {
+	my $url = "imap://$host_port/t.v2.0";
+
 	lei_ok(qw(q z:1..));
 	my $out = json_utf8->decode($lei_out);
 	is_deeply($out, [ undef ], 'nothing imported, yet');
-	lei_ok('import', "imap://$host_port/t.v2.0");
+
+	lei_ok('inspect', $url);
+	is_deeply(json_utf8->decode($lei_out), {}, 'no inspect stats, yet');
+
+	lei_ok('import', $url);
+
+	lei_ok('inspect', $url);
+	my $inspect = json_utf8->decode($lei_out);
+	my @k = keys %$inspect;
+	is(scalar(@k), 1, 'one URL resolved');
+	like($k[0], qr!\A\Q$url\E;UIDVALIDITY=\d+\z!, 'inspect URL matches');
+	my $stats = $inspect->{$k[0]};
+	is_deeply([ sort keys %$stats ],
+		[ qw(uid.count uid.max uid.min) ], 'keys match');
+	ok($stats->{'uid.min'} < $stats->{'uid.max'}, 'min < max');
+	ok($stats->{'uid.count'} > 0, 'count > 0');
+
 	lei_ok(qw(q z:1..));
 	$out = json_utf8->decode($lei_out);
 	ok(scalar(@$out) > 1, 'got imported messages');
@@ -23,9 +41,14 @@ test_lei({ tmpdir => $tmpdir }, sub {
 	my %r;
 	for (@$out) { $r{ref($_)}++ }
 	is_deeply(\%r, { 'HASH' => scalar(@$out) }, 'all hashes');
-	lei_ok([qw(tag +kw:seen), "imap://$host_port/t.v2.0"], undef, undef);
+	lei_ok([qw(tag +kw:seen), $url], undef, undef);
 
 	my $f = "$ENV{HOME}/.local/share/lei/store/net_last.sqlite3";
 	ok(-s $f, 'net tracked for redundant imports');
+	lei_ok('inspect', "blob:$out->[5]->{blob}");
+	my $x = json_utf8->decode($lei_out);
+	is(ref($x->{'lei/store'}), 'ARRAY', 'lei/store in inspect');
+	is(ref($x->{sync}), 'HASH', 'sync in inspect');
+	is(ref($x->{sync}->{$k[0]}), 'ARRAY', 'UID arrays in inspect');
 });
 done_testing;
diff --git a/t/lei-import-maildir.t b/t/lei-import-maildir.t
index 6706b014..3e3d9188 100644
--- a/t/lei-import-maildir.t
+++ b/t/lei-import-maildir.t
@@ -12,6 +12,21 @@ test_lei(sub {
 		BAIL_OUT "symlink $md $!";
 	lei_ok(qw(import), $md, \'import Maildir');
 	my $imp_err = $lei_err;
+
+	my %i;
+	lei_ok('inspect', $md); $i{no_type} = $lei_out;
+	lei_ok('inspect', "maildir:$md"), $i{with_type} = $lei_out;
+	lei_ok(['inspect', $md], undef, { -C => $ENV{HOME}, %$lei_opt });
+	$i{rel_no_type} = $lei_out;
+	lei_ok(['inspect', "maildir:$md"], undef,
+		{ -C => $ENV{HOME}, %$lei_opt });
+	$i{rel_with_type} = $lei_out;
+	my %v = map { $_ => 1 } values %i;
+	is(scalar(keys %v), 1, 'inspect handles relative and absolute paths');
+	my $inspect = json_utf8->decode([ keys %v ]->[0]);
+	is_deeply($inspect, {"maildir:$md" => { 'name.count' => 1 }},
+		'inspect maildir: path had expected output');
+
 	lei_ok(qw(q s:boolean));
 	my $res = json_utf8->decode($lei_out);
 	like($res->[0]->{'s'}, qr/use boolean/, 'got expected result')
@@ -19,6 +34,12 @@ test_lei(sub {
 	is_deeply($res->[0]->{kw}, ['seen'], 'keyword set');
 	is($res->[1], undef, 'only got one result');
 
+	lei_ok('inspect', "blob:$res->[0]->{blob}");
+	$inspect = json_utf8->decode($lei_out);
+	is(ref(delete $inspect->{"lei/store"}), 'ARRAY', 'lei/store IDs');
+	is_deeply($inspect, { sync => { "maildir:$md" => [ 'x:2,S' ] } },
+		'maildir sync info as expected');
+
 	lei_ok(qw(import), $md, \'import Maildir again');
 	$imp_err = $lei_err;
 	lei_ok(qw(q -d none s:boolean), \'lei q w/o dedupe');

      parent reply	other threads:[~2021-04-24  9:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-24  9:28 [PATCH 0/7] lei sync preparations, "lei inspect" Eric Wong
2021-04-24  9:28 ` [PATCH 1/7] lei_input: drop outdated comment w.r.t. compression Eric Wong
2021-04-24  9:28 ` [PATCH 2/7] t/lei_to_mail: split "lei import" test $HOME directory Eric Wong
2021-04-24  9:28 ` [PATCH 3/7] URIimap: support ->uidvalidity and ->iuid Eric Wong
2021-04-24  9:28 ` [PATCH 4/7] net_reader: imap_each: add UIDVALIDITY to URL arg Eric Wong
2021-04-24  9:28 ` [PATCH 5/7] doc: lei_design_notes: add a bit on WAL usage Eric Wong
2021-04-24  9:28 ` [PATCH 6/7] lei_mail_sync: for bidirectional keyword sync Eric Wong
2021-04-24  9:28 ` Eric Wong [this message]

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