package PublicInbox::LEI;
use strict;
use v5.10.1;
-use parent qw(PublicInbox::DS PublicInbox::LeiExternal);
+use parent qw(PublicInbox::DS PublicInbox::LeiExternal
+ PublicInbox::LeiQuery);
use Getopt::Long ();
use Socket qw(AF_UNIX SOCK_STREAM pack_sockaddr_un);
use Errno qw(EAGAIN ECONNREFUSED ENOENT);
use PublicInbox::Syscall qw(SFD_NONBLOCK EPOLLIN EPOLLONESHOT);
use PublicInbox::Sigfd;
use PublicInbox::DS qw(now dwaitpid);
-use PublicInbox::Spawn qw(spawn run_die);
+use PublicInbox::Spawn qw(spawn run_die popen_rd);
use PublicInbox::OnDestroy;
use Text::Wrap qw(wrap);
use File::Path qw(mkpath);
sub pass_through { $GLP_PASS }
my $OPT;
-sub opt_dash {
+sub opt_dash ($$) {
my ($spec, $re_str) = @_; # 'limit|n=i', '([0-9]+)'
my ($key) = ($spec =~ m/\A([a-z]+)/g);
my $cb = sub { # Getopt::Long "<>" catch-all handler
my ($arg) = @_;
if ($arg =~ /\A-($re_str)\z/) {
$OPT->{$key} = $1;
+ } elsif ($arg eq '--') { # "--" arg separator, ignore first
+ push @{$OPT->{-argv}}, $arg if $OPT->{'--'}++;
+ # lone (single) dash is handled elsewhere
+ } elsif (substr($arg, 0, 1) eq '-') {
+ if ($OPT->{'--'}) {
+ push @{$OPT->{-argv}}, $arg;
+ } else {
+ die "bad argument: $arg\n";
+ }
} else {
- die "bad argument for --$key: $arg\n";
+ push @{$OPT->{-argv}}, $arg;
}
};
- ($spec, '<>' => $cb, $GLP_PASS)
+ ($spec, '<>' => $cb, $GLP_PASS) # for Getopt::Long
}
sub _store_path ($) {
our %CMD = ( # sorted in order of importance/use:
'q' => [ 'SEARCH_TERMS...', 'search for messages matching terms', qw(
save-as=s output|mfolder|o=s format|f=s dedupe|d=s thread|t augment|a
- sort|s=s@ reverse|r offset=i remote local! external!
+ sort|s=s reverse|r offset=i remote local! external! pretty
since|after=s until|before=s), opt_dash('limit|n=i', '[0-9]+') ],
'show' => [ 'MID|OID', 'show a given object (Message-ID or object ID)',
'daemon-kill' => [ '[-SIGNAL]', 'signal the lei-daemon',
opt_dash('signal|s=s', '[0-9]+|(?:[A-Z][A-Z0-9]+)') ],
'daemon-pid' => [ '', 'show the PID of the lei-daemon' ],
-'daemon-env' => [ '[NAME=VALUE...]', 'set, unset, or show daemon environment',
- qw(clear| unset|u=s@ z|0) ],
'help' => [ '[SUBCOMMAND]', 'show help' ],
# XXX do we need this?
'limit|n=i@' => ['NUM', 'limit on number of matches (default: 10000)' ],
'offset=i' => ['OFF', 'search result offset (default: 0)'],
-'sort|s=s@' => [ 'VAL|internaldate,date,relevance,docid',
+'sort|s=s' => [ 'VAL|received,relevance,docid',
"order of results `--output'-dependent"],
+'reverse|r' => [ 'reverse search results' ], # like sort(1)
'boost=i' => 'increase/decrease priority of results (default: 0)',
# xargs, env, use "-0", git(1) uses "-z". We support z|0 everywhere
'z|0' => 'use NUL \\0 instead of newline (CR) to delimit lines',
-# note: no "--ignore-environment" / "-i" support like env(1) since that
-# is one-shot and this is for a persistent daemon:
-'clear|' => 'clear the daemon environment',
-'unset|u=s@' => ['NAME',
- 'unset matching NAME, may be specified multiple times'],
-
'signal|s=s' => [ 'SIG', 'signal to send lei-daemon (default: TERM)' ],
); # %OPTDESC
sub x_it ($$) { # pronounced "exit"
my ($self, $code) = @_;
+ $self->{1}->autoflush(1); # make sure client sees stdout before exit
if (my $sig = ($code & 127)) {
kill($sig, $self->{pid} // $$);
} else {
return _help($self, "bad arguments or options for $cmd");
return _help($self) if $OPT->{help};
+ push @$argv, @{$OPT->{-argv}} if defined($OPT->{-argv});
+
# "-" aliases "stdin" or "clear"
$OPT->{$lone_dash} = ${$OPT->{$lone_dash}} if defined $lone_dash;
my ($self, @argv) = @_;
}
-sub lei_query {
- my ($self, @argv) = @_;
-}
-
sub lei_mark {
my ($self, @argv) = @_;
}
$dir //= _store_path($env);
$dir = File::Spec->rel2abs($dir, $env->{PWD}); # PWD is symlink-aware
my @cur = stat($cur) if defined($cur);
- $cur = File::Spec->canonpath($cur) if $cur;
+ $cur = File::Spec->canonpath($cur // $dir);
my @dir = stat($dir);
my $exists = "I: leistore.dir=$cur already initialized" if @dir;
if (@cur) {
kill($sig, $$) or fail($self, "kill($sig, $$): $!");
}
-sub lei_daemon_env {
- my ($self, @argv) = @_;
- my $opt = $self->{opt};
- if (defined $opt->{clear}) {
- %ENV = ();
- } elsif (my $u = $opt->{unset}) {
- delete @ENV{@$u};
- }
- if (@argv) {
- %ENV = (%ENV, map { split(/=/, $_, 2) } @argv);
- } elsif (!defined($opt->{clear}) && !$opt->{unset}) {
- my $eor = $opt->{z} ? "\0" : "\n";
- my $buf = '';
- while (my ($k, $v) = each %ENV) { $buf .= "$k=$v$eor" }
- out $self, $buf;
- }
-}
-
sub lei_help { _help($_[0]) }
# Shell completion helper. Used by lei-completion.bash and hopefully
dwaitpid($pid, \&reap_exec, $self);
}
+# caller needs to "-t $self->{1}" to check if tty
+sub start_pager {
+ my ($self) = @_;
+ my $env = $self->{env};
+ my $fh = popen_rd([qw(git var GIT_PAGER)], $env);
+ chomp(my $pager = <$fh> // '');
+ close($fh) or warn "`git var PAGER' error: \$?=$?";
+ return if $pager eq 'cat' || $pager eq '';
+ $env->{LESS} //= 'FRX';
+ $env->{LV} //= '-c';
+ $env->{COLUMNS} //= 80; # TODO TIOCGWINSZ
+ $env->{MORE} //= 'FRX' if $^O eq 'freebsd';
+ pipe(my ($r, $w)) or return warn "pipe: $!";
+ my $rdr = { 0 => $r, 1 => $self->{1}, 2 => $self->{2} };
+ $self->{1} = $w;
+ $self->{2} = $w if -t $self->{2};
+ my $pid = spawn([$pager], $env, $rdr);
+ dwaitpid($pid, undef, $self->{sock});
+ $env->{GIT_PAGER_IN_USE} = 'true'; # we may spawn git
+}
+
sub accept_dispatch { # Listener {post_accept} callback
my ($sock) = @_; # ignore other
$sock->blocking(1);
say $sock "timed out waiting to recv FDs";
return;
}
+ $self->{2}->autoflush(1); # keep stdout buffered until x_it|DESTROY
# $ARGV_STR = join("]\0[", @ARGV);
# $ENV_STR = join('', map { "$_=$ENV{$_}\0" } keys %ENV);
# $line = "$$\0\0>$ARGV_STR\0\0>$ENV_STR\0\0";
};
my %env = map { split(/=/, $_, 2) } split(/\0/, $env);
if (chdir($env{PWD})) {
+ local %ENV = %env;
$self->{env} = \%env;
$self->{pid} = $client_pid;
eval { dispatch($self, split(/\]\0\[/, $argv)) };
}
}
+# for long-running results
+sub event_step {
+ my ($self) = @_;
+ local %ENV = %{$self->{env}};
+ eval {}; # TODO
+ if ($@) {
+ say { $self->{sock} } $@;
+ $self->close; # PublicInbox::DS::close
+ }
+}
+
sub noop {}
# lei(1) calls this when it can't connect
sub lazy_start {
- my ($path, $errno) = @_;
+ my ($path, $errno, $nfd) = @_;
if ($errno == ECONNREFUSED) {
unlink($path) or die "unlink($path): $!";
} elsif ($errno != ENOENT) {
my @st = stat($path) or die "stat($path): $!";
my $dev_ino_expect = pack('dd', $st[0], $st[1]); # dev+ino
pipe(my ($eof_r, $eof_w)) or die "pipe: $!";
- my $oldset = PublicInbox::Sigfd::block_signals();
- $recv_3fds = PublicInbox::Spawn->can('recv_3fds') or die
- "Inline::C not installed/configured or IO::FDPass missing\n";
+ my $oldset = PublicInbox::DS::block_signals();
+ if ($nfd == 1) {
+ require IO::FDPass;
+ $recv_3fds = sub { map { IO::FDPass::recv($_[0]) } (0..2) };
+ } elsif ($nfd == 3) {
+ $recv_3fds = PublicInbox::Spawn->can('recv_3fds');
+ }
+ $recv_3fds or die
+ "IO::FDPass missing or Inline::C not installed/configured\n";
require PublicInbox::Listener;
require PublicInbox::EOFpipe;
(-p STDOUT) or die "E: stdout must be a pipe\n";
} else {
# wake up every second to accept signals if we don't
# have signalfd or IO::KQueue:
- PublicInbox::Sigfd::sig_setmask($oldset);
+ PublicInbox::DS::sig_setmask($oldset);
PublicInbox::DS->SetLoopTimeout(1000);
}
PublicInbox::DS->SetPostLoopCallback(sub {
}, __PACKAGE__), @ARGV);
}
+# ensures stdout hits the FS before sock disconnects so a client
+# can immediately reread it
+sub DESTROY {
+ my ($self) = @_;
+ $self->{1}->autoflush(1);
+}
+
1;