diff options
Diffstat (limited to 'lib/PublicInbox/LEI.pm')
| -rw-r--r-- | lib/PublicInbox/LEI.pm | 116 |
1 files changed, 104 insertions, 12 deletions
diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm index a9f5edae..b92d7512 100644 --- a/lib/PublicInbox/LEI.pm +++ b/lib/PublicInbox/LEI.pm @@ -28,14 +28,15 @@ use Time::HiRes qw(stat); # ctime comparisons for config cache use File::Path qw(mkpath); use File::Spec; our $quit = \&CORE::exit; -our ($current_lei, $errors_log, $listener, $oldset, $dir_idle); -my ($recv_cmd, $send_cmd); +our ($current_lei, $errors_log, $listener, $oldset, $dir_idle, + $recv_cmd, $send_cmd); my $GLP = Getopt::Long::Parser->new; $GLP->configure(qw(gnu_getopt no_ignore_case auto_abbrev)); my $GLP_PASS = Getopt::Long::Parser->new; $GLP_PASS->configure(qw(gnu_getopt no_ignore_case auto_abbrev pass_through)); our %PATH2CFG; # persistent for socket daemon +our $MDIR2CFGPATH; # /path/to/maildir => { /path/to/config => undef } # TBD: this is a documentation mechanism to show a subcommand # (may) pass options through to another command: @@ -232,10 +233,9 @@ our %CMD = ( # sorted in order of importance/use: qw(exact! all jobs:i indexed), @c_opt ], 'add-watch' => [ 'LOCATION', 'watch for new messages and flag changes', - qw(import! kw! interval=s recursive|r - exclude=s include=s), @c_opt ], + qw(poll-interval=s state=s recursive|r), @c_opt ], 'ls-watch' => [ '[FILTER...]', 'list active watches with numbers and status', - qw(format|f=s z), @c_opt ], + qw(l z|0), @c_opt ], 'pause-watch' => [ '[WATCH_NUMBER_OR_FILTER]', qw(all local remote), @c_opt ], 'resume-watch' => [ '[WATCH_NUMBER_OR_FILTER]', qw(all local remote), @c_opt ], 'forget-watch' => [ '{WATCH_NUMBER|--prune}', 'stop and forget a watch', @@ -391,6 +391,7 @@ my %OPTDESC = ( 'format|f=s ls-search' => ['OUT|json|jsonl|concatjson', 'listing output format' ], 'l ls-search' => 'long listing format', +'l ls-watch' => 'long listing format', 'l ls-mail-source' => 'long listing format', 'url ls-mail-source' => 'show full URL of newsgroup or IMAP folder', 'format|f=s ls-external' => $ls_format, @@ -435,7 +436,7 @@ my %CONFIG_KEYS = ( 'leistore.dir' => 'top-level storage location', ); -my @WQ_KEYS = qw(lxs l2m ikw pmd wq1); # internal workers +my @WQ_KEYS = qw(lxs l2m ikw pmd wq1 lne); # internal workers sub _drop_wq { my ($self) = @_; @@ -538,7 +539,7 @@ sub _lei_atfork_child { chdir '/' or die "chdir(/): $!"; close($_) for (grep(defined, delete @$self{qw(0 1 2 sock)})); if (my $cfg = $self->{cfg}) { - delete $cfg->{-lei_store}; + delete @$cfg{qw(-lei_store -watches -lei_note_event)}; } } else { # worker, Net::NNTP (Net::Cmd) uses STDERR directly open STDERR, '+>&='.fileno($self->{2}) or warn "open $!"; @@ -555,6 +556,8 @@ sub _lei_atfork_child { undef $listener; undef $dir_idle; %PATH2CFG = (); + $MDIR2CFGPATH = {}; + eval 'no warnings; undef $PublicInbox::LeiNoteEvent::to_flush'; undef $errors_log; $quit = \&CORE::exit; $self->{-eml_noisy} or # only "lei import" sets this atm @@ -781,10 +784,12 @@ sub _lei_cfg ($;$) { my $f = _config_path($self); my @st = stat($f); my $cur_st = @st ? pack('dd', $st[10], $st[7]) : ''; # 10:ctime, 7:size - my ($sto, $sto_dir); + my ($sto, $sto_dir, $watches, $lne); if (my $cfg = $PATH2CFG{$f}) { # reuse existing object in common case return ($self->{cfg} = $cfg) if $cur_st eq $cfg->{-st}; - ($sto, $sto_dir) = @$cfg{qw(-lei_store leistore.dir)}; + ($sto, $sto_dir, $watches, $lne) = + @$cfg{qw(-lei_store leistore.dir -watches + -lei_note_event)}; } if (!@st) { unless ($creat) { @@ -805,6 +810,8 @@ sub _lei_cfg ($;$) { eq File::Spec->canonpath($cfg->{'leistore.dir'} // store_path($self))) { $cfg->{-lei_store} = $sto; + $cfg->{-lei_note_event} = $lne; + $cfg->{-watches} = $watches if $watches; } if (scalar(keys %PATH2CFG) > 5) { # FIXME: use inotify/EVFILT_VNODE to detect unlinked configs @@ -817,7 +824,7 @@ sub _lei_cfg ($;$) { sub _lei_store ($;$) { my ($self, $creat) = @_; - my $cfg = _lei_cfg($self, $creat); + my $cfg = _lei_cfg($self, $creat) // return; $cfg->{-lei_store} //= do { require PublicInbox::LeiStore; my $dir = $cfg->{'leistore.dir'} // store_path($self); @@ -1126,6 +1133,53 @@ sub dump_and_clear_log { } } +sub cfg2lei ($) { + my ($cfg) = @_; + my $lei = bless { env => { %{$cfg->{-env}} } }, __PACKAGE__; + open($lei->{0}, '<&', \*STDIN) or die "dup 0: $!"; + open($lei->{1}, '>>&', \*STDOUT) or die "dup 1: $!"; + open($lei->{2}, '>>&', \*STDERR) or die "dup 2: $!"; + open($lei->{3}, '/') or die "open /: $!"; + chdir($lei->{3}) or die "chdir /': $!"; + my ($x, $y); + socketpair($x, $y, AF_UNIX, SOCK_SEQPACKET, 0) or die "socketpair: $!"; + $lei->{sock} = $x; + require PublicInbox::LeiSelfSocket; + PublicInbox::LeiSelfSocket->new($y); # adds to event loop + $lei; +} + +sub dir_idle_handler ($) { # PublicInbox::DirIdle callback + my ($ev) = @_; # Linux::Inotify2::Event or duck type + my $fn = $ev->fullname; + if ($fn =~ m!\A(.+)/(new|cur)/([^/]+)\z!) { # Maildir file + my ($mdir, $nc, $bn) = ($1, $2, $3); + $nc = '' if $ev->IN_DELETE; + for my $f (keys %{$MDIR2CFGPATH->{$mdir} // {}}) { + my $cfg = $PATH2CFG{$f} // next; + eval { + local %ENV = %{$cfg->{-env}}; + my $lei = cfg2lei($cfg); + $lei->dispatch('note-event', + "maildir:$mdir", $nc, $bn, $fn); + }; + warn "E note-event $f: $@\n" if $@; + } + } + if ($ev->can('cancel') && ($ev->IN_IGNORE || $ev->IN_UNMOUNT)) { + $ev->cancel; + } + if ($fn =~ m!\A(.+)/(?:new|cur)\z! && !-e $fn) { + delete $MDIR2CFGPATH->{$1}; + } + if (!-e $fn) { # config file or Maildir gone + for my $cfgpaths (values %$MDIR2CFGPATH) { + delete $cfgpaths->{$fn}; + } + delete $PATH2CFG{$fn}; + } +} + # lei(1) calls this when it can't connect sub lazy_start { my ($path, $errno, $narg) = @_; @@ -1175,6 +1229,7 @@ sub lazy_start { return if $pid; $0 = "lei-daemon $path"; local %PATH2CFG; + local $MDIR2CFGPATH; $listener->blocking(0); my $exit_code; my $pil = PublicInbox::Listener->new($listener, \&accept_dispatch); @@ -1204,8 +1259,8 @@ sub lazy_start { local $SIG{PIPE} = 'IGNORE'; require PublicInbox::DirIdle; local $dir_idle = PublicInbox::DirIdle->new([$sock_dir], sub { - # just rely on wakeup ot hit PostLoopCallback set below - _dir_idle_handler(@_) if $_[0]->fullname ne $path; + # just rely on wakeup to hit PostLoopCallback set below + dir_idle_handler($_[0]) if $_[0]->fullname ne $path; }, 1); if ($sigfd) { undef $sigfd; # unref, already in DS::DescriptorMap @@ -1293,4 +1348,41 @@ sub wq_eof { # EOF callback for main daemon $wq1->wq_wait_old(\&wq_done_wait, $lei); } +sub watch_state_ok ($) { + my ($state) = $_[-1]; # $_[0] may be $self + $state =~ /\Apause|(?:import|index|tag)-(?:ro|rw)\z/; +} + +sub refresh_watches { + my ($lei) = @_; + my $cfg = _lei_cfg($lei) or return; + $cfg->{-env} //= { %{$lei->{env}}, PWD => '/' }; # for cfg2lei + my $watches = $cfg->{-watches} //= {}; + require PublicInbox::LeiWatch; + for my $w (grep(/\Awatch\..+\.state\z/, keys %$cfg)) { + my $url = substr($w, length('watch.'), -length('.state')); + my $lw = $watches->{$w} //= PublicInbox::LeiWatch->new($url); + my $state = $cfg->get_1("watch.$url", 'state'); + if (!watch_state_ok($state)) { + $lei->err("watch.$url.state=$state not supported"); + next; + } + my $f = $cfg->{'-f'}; + if ($url =~ /\Amaildir:(.+)/i) { + my $d = File::Spec->canonpath($1); + if ($state eq 'pause') { + delete $MDIR2CFGPATH->{$d}->{$f}; + scalar(keys %{$MDIR2CFGPATH->{$d}}) or + delete $MDIR2CFGPATH->{$d}; + } elsif (!exists($MDIR2CFGPATH->{$d}->{$f})) { + $dir_idle->add_watches(["$d/cur", "$d/new"], 1); + $MDIR2CFGPATH->{$d}->{$f} = undef; + } + } else { # TODO: imap/nntp/jmap + $lei->child_error(1, + "E: watch $url not supported, yet"); + } + } +} + 1; |