1 # Copyright (C) 2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Backend for `lei' (local email interface). Unlike the C10K-oriented
5 # PublicInbox::Daemon, this is designed exclusively to handle trusted
6 # local clients with read/write access to the FS and use as many
7 # system resources as the local user has access to.
8 package PublicInbox::LEI;
11 use parent qw(PublicInbox::DS);
13 use Errno qw(EAGAIN ECONNREFUSED ENOENT);
17 use Sys::Syslog qw(syslog openlog);
18 use PublicInbox::Config;
19 use PublicInbox::Syscall qw($SFD_NONBLOCK EPOLLIN EPOLLONESHOT);
20 use PublicInbox::Sigfd;
21 use PublicInbox::DS qw(now);
22 use PublicInbox::Spawn qw(spawn);
23 use Text::Wrap qw(wrap);
24 use File::Path qw(mkpath);
26 our $quit = \&CORE::exit;
27 my $GLP = Getopt::Long::Parser->new;
28 $GLP->configure(qw(gnu_getopt no_ignore_case auto_abbrev));
29 my $GLP_PASS = Getopt::Long::Parser->new;
30 $GLP_PASS->configure(qw(gnu_getopt no_ignore_case auto_abbrev pass_through));
32 our %PATH2CFG; # persistent for socket daemon
34 # TBD: this is a documentation mechanism to show a subcommand
35 # (may) pass options through to another command:
36 sub pass_through { $GLP_PASS }
40 File::Spec->rel2abs(($env->{XDG_DATA_HOME} //
41 ($env->{HOME} // '/nonexistent').'/.local/share')
42 .'/lei/store', $env->{PWD});
45 sub _config_path ($) {
47 File::Spec->rel2abs(($env->{XDG_CONFIG_HOME} //
48 ($env->{HOME} // '/nonexistent').'/.config')
49 .'/lei/config', $env->{PWD});
52 # TODO: generate shell completion + help using %CMD and %OPTDESC
53 # command => [ positional_args, 1-line description, Getopt::Long option spec ]
54 our %CMD = ( # sorted in order of importance/use:
55 'query' => [ 'SEARCH_TERMS...', 'search for messages matching terms', qw(
56 save-as=s output|o=s format|f=s dedupe|d=s thread|t augment|a
57 limit|n=i sort|s=s@ reverse|r offset=i remote local! extinbox!
58 since|after=s until|before=s) ],
60 'show' => [ 'MID|OID', 'show a given object (Message-ID or object ID)',
61 qw(type=s solve! format|f=s dedupe|d=s thread|t remote local!),
62 pass_through('git show') ],
64 'add-extinbox' => [ 'URL_OR_PATHNAME',
65 'add/set priority of a publicinbox|extindex for extra matches',
67 'ls-extinbox' => [ '[FILTER...]', 'list publicinbox|extindex locations',
68 qw(format|f=s z local remote) ],
69 'forget-extinbox' => [ '{URL_OR_PATHNAME|--prune}',
70 'exclude further results from a publicinbox|extindex',
73 'ls-query' => [ '[FILTER...]', 'list saved search queries',
74 qw(name-only format|f=s z) ],
75 'rm-query' => [ 'QUERY_NAME', 'remove a saved search' ],
76 'mv-query' => [ qw(OLD_NAME NEW_NAME), 'rename a saved search' ],
78 'plonk' => [ '--thread|--from=IDENT',
79 'exclude mail matching From: or thread from non-Message-ID searches',
80 qw(stdin| thread|t from|f=s mid=s oid=s) ],
81 'mark' => [ 'MESSAGE_FLAGS...',
82 'set/unset flags on message(s) from stdin',
83 qw(stdin| oid=s exact by-mid|mid:s) ],
84 'forget' => [ '[--stdin|--oid=OID|--by-mid=MID]',
85 'exclude message(s) on stdin from query results',
86 qw(stdin| oid=s exact by-mid|mid:s quiet|q) ],
88 'purge-mailsource' => [ '{URL_OR_PATHNAME|--all}',
89 'remove imported messages from IMAP, Maildirs, and MH',
90 qw(exact! all jobs:i indexed) ],
92 # code repos are used for `show' to solve blobs from patch mails
93 'add-coderepo' => [ 'PATHNAME', 'add or set priority of a git code repo',
95 'ls-coderepo' => [ '[FILTER_TERMS...]',
96 'list known code repos', qw(format|f=s z) ],
97 'forget-coderepo' => [ 'PATHNAME',
98 'stop using repo to solve blobs from patches',
101 'add-watch' => [ '[URL_OR_PATHNAME]',
102 'watch for new messages and flag changes',
103 qw(import! flags! interval=s recursive|r exclude=s include=s) ],
104 'ls-watch' => [ '[FILTER...]', 'list active watches with numbers and status',
106 'pause-watch' => [ '[WATCH_NUMBER_OR_FILTER]', qw(all local remote) ],
107 'resume-watch' => [ '[WATCH_NUMBER_OR_FILTER]', qw(all local remote) ],
108 'forget-watch' => [ '{WATCH_NUMBER|--prune}', 'stop and forget a watch',
111 'import' => [ '{URL_OR_PATHNAME|--stdin}',
112 'one-shot import/update from URL or filesystem',
113 qw(stdin| limit|n=i offset=i recursive|r exclude=s include=s !flags),
116 'config' => [ '[...]', sub {
117 'git-config(1) wrapper for '._config_path($_[0]);
118 }, qw(config-file|system|global|file|f=s), # for conflict detection
119 pass_through('git config') ],
120 'init' => [ '[PATHNAME]', sub {
121 'initialize storage, default: '._store_path($_[0]);
123 'daemon-stop' => [ '', 'stop the lei-daemon' ],
124 'daemon-pid' => [ '', 'show the PID of the lei-daemon' ],
125 'daemon-env' => [ '[NAME=VALUE...]', 'set, unset, or show daemon environment',
126 qw(clear| unset|u=s@ z|0) ],
127 'help' => [ '[SUBCOMMAND]', 'show help' ],
129 # XXX do we need this?
130 # 'git' => [ '[ANYTHING...]', 'git(1) wrapper', pass_through('git') ],
132 'reorder-local-store-and-break-history' => [ '[REFNAME]',
133 'rewrite git history in an attempt to improve compression',
137 # switch descriptions, try to keep consistent across commands
138 # $spec: Getopt::Long option specification
139 # $spec => [@ALLOWED_VALUES (default is first), $description],
140 # $spec => $description
141 # "$SUB_COMMAND TAB $spec" => as above
142 my $stdin_formats = [ 'IN|auto|raw|mboxrd|mboxcl2|mboxcl|mboxo',
143 'specify message input format' ];
144 my $ls_format = [ 'OUT|plain|json|null', 'listing output format' ];
147 'help|h' => 'show this built-in help',
148 'quiet|q' => 'be quiet',
149 'solve!' => 'do not attempt to reconstruct blobs from emails',
150 'save-as=s' => ['NAME', 'save a search terms by given name'],
152 'type=s' => [ 'any|mid|git', 'disambiguate type' ],
154 'dedupe|d=s' => ['STRAT|content|oid|mid',
155 'deduplication strategy'],
156 'show thread|t' => 'display entire thread a message belongs to',
158 'return all messages in the same thread as the actual match(es)',
159 'augment|a' => 'augment --output destination instead of clobbering',
161 'output|o=s' => [ 'DEST',
162 "destination (e.g. `/path/to/Maildir', or `-' for stdout)" ],
164 'show format|f=s' => [ 'OUT|plain|raw|html|mboxrd|mboxcl2|mboxcl',
165 'message/object output format' ],
166 'mark format|f=s' => $stdin_formats,
167 'forget format|f=s' => $stdin_formats,
168 'query format|f=s' => [ 'OUT|maildir|mboxrd|mboxcl2|mboxcl|html|oid',
169 'specify output format, default depends on --output'],
170 'ls-query format|f=s' => $ls_format,
171 'ls-extinbox format|f=s' => $ls_format,
173 'limit|n=i' => ['NUM',
174 'limit on number of matches (default: 10000)' ],
175 'offset=i' => ['OFF', 'search result offset (default: 0)'],
177 'sort|s=s@' => [ 'VAL|internaldate,date,relevance,docid',
178 "order of results `--output'-dependent"],
180 'prio=i' => 'priority of query source',
182 'local' => 'limit operations to the local filesystem',
183 'local!' => 'exclude results from the local filesystem',
184 'remote' => 'limit operations to those requiring network access',
185 'remote!' => 'prevent operations requiring network access',
187 'mid=s' => 'specify the Message-ID of a message',
188 'oid=s' => 'specify the git object ID of a message',
190 'recursive|r' => 'scan directories/mailboxes/newsgroups recursively',
191 'exclude=s' => 'exclude mailboxes/newsgroups based on pattern',
192 'include=s' => 'include mailboxes/newsgroups based on pattern',
194 'exact' => 'operate on exact header matches only',
195 'exact!' => 'rely on content match instead of exact header matches',
197 'by-mid|mid:s' => [ 'MID', 'match only by Message-ID, ignoring contents' ],
198 'jobs:i' => 'set parallelism level',
200 # xargs, env, use "-0", git(1) uses "-z". Should we support z|0 everywhere?
201 'z' => 'use NUL \\0 instead of newline (CR) to delimit lines',
202 'z|0' => 'use NUL \\0 instead of newline (CR) to delimit lines',
204 # note: no "--ignore-environment" / "-i" support like env(1) since that
205 # is one-shot and this is for a persistent daemon:
206 'clear|' => 'clear the daemon environment',
207 'unset|u=s@' => ['NAME',
208 'unset matching NAME, may be specified multiple times'],
211 sub x_it ($$) { # pronounced "exit"
212 my ($self, $code) = @_;
213 if (my $sig = ($code & 127)) {
214 kill($sig, $self->{pid} // $$);
217 if (my $sock = $self->{sock}) {
218 say $sock "exit=$code";
219 } else { # for oneshot
226 my ($self, $channel) = @_; # $buf = $_[2]
227 print { $self->{$channel} } $_[2] or die "print FD[$channel]: $!";
231 my ($self, $buf) = @_;
232 $buf .= "\n" unless $buf =~ /\n\z/s;
233 emit($self, 2, $buf);
236 sub qerr { $_[0]->{opt}->{quiet} or err(@_) }
239 my ($self, $buf, $exit_code) = @_;
241 x_it($self, ($exit_code // 1) << 8);
246 my ($self, $errmsg) = @_;
247 my $cmd = $self->{cmd} // 'COMMAND';
248 my @info = @{$CMD{$cmd} // [ '...', '...' ]};
249 my @top = ($cmd, shift(@info) // ());
250 my $cmd_desc = shift(@info);
251 $cmd_desc = $cmd_desc->($self->{env}) if ref($cmd_desc) eq 'CODE';
254 for my $sw (grep { !ref } @info) { # ("prio=s", "z", $GLP_PASS)
255 my $desc = $OPTDESC{"$cmd\t$sw"} // $OPTDESC{$sw} // next;
257 ($arg_vals, $desc) = @$desc if ref($desc) eq 'ARRAY';
259 # lower-case is a keyword (e.g. `content', `oid'),
260 # ALL_CAPS is a string description (e.g. `PATH')
261 if ($desc !~ /default/ && $arg_vals =~ /\b([a-z]+)[,\|]/) {
262 $desc .= "\ndefault: `$1'";
266 if ($x =~ s/!\z//) { # solve! => --no-solve
268 } elsif ($x =~ s/:.+//) { # optional args: $x = "mid:s"
269 @vals = (' [', undef, ']');
270 } elsif ($x =~ s/=.+//) { # required arg: $x = "type=s"
271 @vals = (' ', undef);
272 } # else: no args $x = 'thread|t'
273 for (split(/\|/, $x)) { # help|h
274 length($_) > 1 ? push(@l, "--$_") : push(@s, "-$_");
276 if (!scalar(@vals)) { # no args 'thread|t'
277 } elsif ($arg_vals =~ s/\A([A-Z_]+)\b//) { # "NAME"
280 $vals[1] = uc(substr($l[0], 2)); # "--type" => "TYPE"
282 if ($arg_vals =~ /([,\|])/) {
284 my @allow = split(/\Q$sep\E/, $arg_vals);
285 my $must = $sep eq '|' ? 'Must' : 'Can';
286 @allow = map { "`$_'" } @allow;
287 my $last = pop @allow;
288 $desc .= "\n$must be one of: " .
289 join(', ', @allow) . " or $last";
291 my $lhs = join(', ', @s, @l) . join('', @vals);
292 if ($x =~ /\|\z/) { # "stdin|" or "clear|"
293 $lhs =~ s/\A--/- , --/;
295 $lhs =~ s/\A--/ --/; # pad if no short options
297 $lpad = length($lhs) if length($lhs) > $lpad;
298 push @opt_desc, $lhs, $desc;
300 my $msg = $errmsg ? "E: $errmsg\n" : '';
307 local $Text::Wrap::columns = 78 - $lpad;
308 my $padding = ' ' x ($lpad + 2);
309 while (my ($lhs, $rhs) = splice(@opt_desc, 0, 2)) {
310 $msg .= ' '.pack("A$lpad", $lhs);
311 $rhs = wrap('', '', $rhs);
312 $rhs =~ s/\n/\n$padding/sg; # LHS pad continuation lines
316 my $channel = $errmsg ? 2 : 1;
317 emit($self, $channel, $msg);
318 x_it($self, $errmsg ? 1 << 8 : 0); # stderr => failure
323 my ($self, $cmd, $argv) = @_;
325 my $opt = $self->{opt} = {};
326 my $info = $CMD{$cmd} // [ '[...]' ];
327 my ($proto, undef, @spec) = @$info;
328 my $glp = ref($spec[-1]) ? pop(@spec) : $GLP; # or $GLP_PASS
329 push @spec, qw(help|h);
331 if ($spec[0] =~ s/\|\z//s) { # "stdin|" or "clear|" allows "-" alias
332 $lone_dash = $spec[0];
333 $opt->{$spec[0]} = \(my $var);
334 push @spec, '' => \$var;
336 $glp->getoptionsfromarray($argv, $opt, @spec) or
337 return _help($self, "bad arguments or options for $cmd");
338 return _help($self) if $opt->{help};
340 # "-" aliases "stdin" or "clear"
341 $opt->{$lone_dash} = ${$opt->{$lone_dash}} if defined $lone_dash;
344 my $POS_ARG = '[A-Z][A-Z0-9_]+';
346 my @args = split(/ /, $proto);
347 for my $var (@args) {
348 if ($var =~ /\A$POS_ARG\.\.\.\z/o) { # >= 1 args;
349 $inf = defined($argv->[$i]) and last;
350 $var =~ s/\.\.\.\z//;
351 $err = "$var not supplied";
352 } elsif ($var =~ /\A$POS_ARG\z/o) { # required arg at $i
353 $argv->[$i++] // ($err = "$var not supplied");
354 } elsif ($var =~ /\.\.\.\]\z/) { # optional args start
357 } elsif ($var =~ /\A\[$POS_ARG\]\z/) { # one optional arg
359 } elsif ($var =~ /\A.+?\|/) { # required FOO|--stdin
360 my @or = split(/\|/, $var);
363 if ($o =~ /\A--([a-z0-9\-]+)/) {
364 $ok = defined($opt->{$1});
366 } elsif (defined($argv->[$i])) {
370 } # else continue looping
373 $err = join(', ', @or) . " or $last must be set";
375 warn "BUG: can't parse `$var' in $proto";
379 # warn "inf=$inf ".scalar(@$argv). ' '.scalar(@args)."\n";
380 if (!$inf && scalar(@$argv) > scalar(@args)) {
381 $err //= 'too many arguments';
383 $err ? fail($self, "usage: lei $cmd $proto\nE: $err") : 1;
387 my ($self, $cmd, @argv) = @_;
388 local $SIG{__WARN__} = sub { err($self, "@_") };
389 local $SIG{__DIE__} = 'DEFAULT';
390 return _help($self, 'no command given') unless defined($cmd);
391 my $func = "lei_$cmd";
393 if (my $cb = __PACKAGE__->can($func)) {
394 optparse($self, $cmd, \@argv) or return;
396 } elsif (grep(/\A-/, $cmd, @argv)) { # --help or -h only
398 $GLP->getoptionsfromarray([$cmd, @argv], $opt, qw(help|h)) or
399 return _help($self, 'bad arguments or options');
402 fail($self, "`$cmd' is not an lei command");
407 my ($self, $creat) = @_;
408 my $f = _config_path($self->{env});
410 my $cur_st = @st ? pack('dd', $st[10], $st[7]) : ''; # 10:ctime, 7:size
411 if (my $cfg = $PATH2CFG{$f}) { # reuse existing object in common case
412 return ($self->{cfg} = $cfg) if $cur_st eq $cfg->{-st};
419 my (undef, $cfg_dir, undef) = File::Spec->splitpath($f);
420 -d $cfg_dir or mkpath($cfg_dir) or die "mkpath($cfg_dir): $!\n";
421 open my $fh, '>>', $f or die "open($f): $!\n";
422 @st = stat($fh) or die "fstat($f): $!\n";
423 $cur_st = pack('dd', $st[10], $st[7]);
424 qerr($self, "I: $f created") if $self->{cmd} ne 'config';
426 my $cfg = PublicInbox::Config::git_config_dump($f);
427 $cfg->{-st} = $cur_st;
429 $self->{cfg} = $PATH2CFG{$f} = $cfg;
432 sub _lei_store ($;$) {
433 my ($self, $creat) = @_;
434 my $cfg = _lei_cfg($self, $creat);
435 $cfg->{-lei_store} //= do {
436 require PublicInbox::LeiStore;
437 PublicInbox::SearchIdx::load_xapian_writable();
438 defined(my $dir = $cfg->{'leistore.dir'}) or return;
439 PublicInbox::LeiStore->new($dir, { creat => $creat });
444 my ($self, @argv) = @_;
448 my ($self, @argv) = @_;
452 my ($self, @argv) = @_;
456 my ($self, @argv) = @_;
457 $self->{opt}->{'config-file'} and return fail $self,
458 "config file switches not supported by `lei config'";
459 my $env = $self->{env};
460 delete local $env->{GIT_CONFIG};
461 my $cfg = _lei_cfg($self, 1);
462 my $cmd = [ qw(git config -f), $cfg->{'-f'}, @argv ];
463 my %rdr = map { $_ => $self->{$_} } (0..2);
464 require PublicInbox::Import;
465 PublicInbox::Import::run_die($cmd, $env, \%rdr);
469 my ($self, $dir) = @_;
470 my $cfg = _lei_cfg($self, 1);
471 my $cur = $cfg->{'leistore.dir'};
472 my $env = $self->{env};
473 $dir //= _store_path($env);
474 $dir = File::Spec->rel2abs($dir, $env->{PWD}); # PWD is symlink-aware
475 my @cur = stat($cur) if defined($cur);
476 $cur = File::Spec->canonpath($cur) if $cur;
477 my @dir = stat($dir);
478 my $exists = "I: leistore.dir=$cur already initialized" if @dir;
481 _lei_store($self, 1)->done;
482 return qerr($self, $exists);
485 # some folks like symlinks and bind mounts :P
486 if (@dir && "$cur[0] $cur[1]" eq "$dir[0] $dir[1]") {
487 lei_config($self, 'leistore.dir', $dir);
488 _lei_store($self, 1)->done;
489 return qerr($self, "$exists (as $cur)");
491 return fail($self, <<"");
492 E: leistore.dir=$cur already initialized and it is not $dir
495 lei_config($self, 'leistore.dir', $dir);
496 _lei_store($self, 1)->done;
497 $exists //= "I: leistore.dir=$dir newly initialized";
498 return qerr($self, $exists);
501 sub lei_daemon_pid { emit($_[0], 1, "$$\n") }
503 sub lei_daemon_stop { $quit->(0) }
506 my ($self, @argv) = @_;
507 my $opt = $self->{opt};
508 if (defined $opt->{clear}) {
510 } elsif (my $u = $opt->{unset}) {
514 %ENV = (%ENV, map { split(/=/, $_, 2) } @argv);
515 } elsif (!defined($opt->{clear}) && !$opt->{unset}) {
516 my $eor = $opt->{z} ? "\0" : "\n";
518 while (my ($k, $v) = each %ENV) { $buf .= "$k=$v$eor" }
523 sub lei_help { _help($_[0]) }
525 sub reap_exec { # dwaitpid callback
526 my ($self, $pid) = @_;
530 sub lei_git { # support passing through random git commands
531 my ($self, @argv) = @_;
532 my %rdr = map { $_ => $self->{$_} } (0..2);
533 my $pid = spawn(['git', @argv], $self->{env}, \%rdr);
534 PublicInbox::DS::dwaitpid($pid, \&reap_exec, $self);
537 sub accept_dispatch { # Listener {post_accept} callback
538 my ($sock) = @_; # ignore other
541 my $self = bless { sock => $sock }, __PACKAGE__;
542 vec(my $rin = '', fileno($sock), 1) = 1;
543 # `say $sock' triggers "die" in lei(1)
545 if (select(my $rout = $rin, undef, undef, 1)) {
546 my $fd = IO::FDPass::recv(fileno($sock));
548 my $rdr = ($fd == 0 ? '<&=' : '>&=');
549 if (open(my $fh, $rdr, $fd)) {
552 say $sock "open($rdr$fd) (FD=$i): $!";
556 say $sock "recv FD=$i: $!";
560 say $sock "timed out waiting to recv FD=$i";
564 # $ARGV_STR = join("]\0[", @ARGV);
565 # $ENV_STR = join('', map { "$_=$ENV{$_}\0" } keys %ENV);
566 # $line = "$$\0\0>$ARGV_STR\0\0>$ENV_STR\0\0";
567 my ($client_pid, $argv, $env) = do {
568 local $/ = "\0\0\0"; # yes, 3 NULs at EOL, not 2
569 chomp(my $line = <$sock>);
570 split(/\0\0>/, $line, 3);
572 my %env = map { split(/=/, $_, 2) } split(/\0/, $env);
573 if (chdir($env{PWD})) {
574 $self->{env} = \%env;
575 $self->{pid} = $client_pid;
576 eval { dispatch($self, split(/\]\0\[/, $argv)) };
579 say $sock "chdir($env{PWD}): $!"; # implicit close
585 # lei(1) calls this when it can't connect
587 my ($path, $err) = @_;
588 if ($err == ECONNREFUSED) {
589 unlink($path) or die "unlink($path): $!";
590 } elsif ($err != ENOENT) {
591 die "connect($path): $!";
594 umask(077) // die("umask(077): $!");
595 my $l = IO::Socket::UNIX->new(Local => $path,
597 Type => SOCK_STREAM) or
599 $l or return die "bind($path): $err";
600 my @st = stat($path) or die "stat($path): $!";
601 my $dev_ino_expect = pack('dd', $st[0], $st[1]); # dev+ino
602 pipe(my ($eof_r, $eof_w)) or die "pipe: $!";
603 my $oldset = PublicInbox::Sigfd::block_signals();
604 my $pid = fork // die "fork: $!";
606 openlog($path, 'pid', 'user');
607 local $SIG{__DIE__} = sub {
608 syslog('crit', "@_");
610 exit $? >> 8 if $? >> 8;
613 local $SIG{__WARN__} = sub { syslog('warning', "@_") };
614 open(STDIN, '+<', '/dev/null') or die "redirect stdin failed: $!\n";
615 open STDOUT, '>&STDIN' or die "redirect stdout failed: $!\n";
616 open STDERR, '>&STDIN' or die "redirect stderr failed: $!\n";
618 $pid = fork // die "fork: $!";
620 $0 = "lei-daemon $path";
622 require PublicInbox::Listener;
623 require PublicInbox::EOFpipe;
627 my $listener = PublicInbox::Listener->new($l, \&accept_dispatch, $l);
630 $exit_code //= shift;
631 my $tmp = $listener or exit($exit_code);
632 unlink($path) if defined($path);
633 syswrite($eof_w, '.');
634 $l = $listener = $path = undef;
635 $tmp->close if $tmp; # DS::close
636 PublicInbox::DS->SetLoopTimeout(1000);
638 PublicInbox::EOFpipe->new($eof_r, sub {}, undef);
640 CHLD => \&PublicInbox::DS::enqueue_reap,
648 my $sigfd = PublicInbox::Sigfd->new($sig, $SFD_NONBLOCK);
649 local %SIG = (%SIG, %$sig) if !$sigfd;
650 if ($sigfd) { # TODO: use inotify/kqueue to detect unlinked sockets
651 PublicInbox::DS->SetLoopTimeout(5000);
653 # wake up every second to accept signals if we don't
654 # have signalfd or IO::KQueue:
655 PublicInbox::Sigfd::sig_setmask($oldset);
656 PublicInbox::DS->SetLoopTimeout(1000);
658 PublicInbox::DS->SetPostLoopCallback(sub {
659 my ($dmap, undef) = @_;
660 if (@st = defined($path) ? stat($path) : ()) {
661 if ($dev_ino_expect ne pack('dd', $st[0], $st[1])) {
662 warn "$path dev/ino changed, quitting\n";
665 } elsif (defined($path)) {
666 warn "stat($path): $!, quitting ...\n";
667 undef $path; # don't unlink
670 return 1 if defined($path);
673 for my $s (values %$dmap) {
674 $s->can('busy') or next;
675 if ($s->busy($now)) {
681 $n; # true: continue, false: stop
683 PublicInbox::DS->EventLoop;
684 exit($exit_code // 0);
687 # for users w/o IO::FDPass
690 my $exit = $main_pkg->can('exit'); # caller may override exit()
691 local $quit = $exit if $exit;
693 umask(077) // die("umask(077): $!");
699 }, __PACKAGE__), @ARGV);