lei q: SIGWINCH process group with the terminal

[public-inbox.git] / script / public-inbox-extindex

diff --git a/script/public-inbox-extindex b/script/public-inbox-extindex
index 17ad59fac3e21ba00ed7cdcb5710dec5e5b7734e..15ac20eb871bf47697377e58a27db23102a38fca 100644 (file)
--- a/script/public-inbox-extindex
+++ b/script/public-inbox-extindex
@@ -1,16 +1,17 @@
 #!perl -w
-# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 # Basic tool to create a Xapian search index for a public-inbox.
 use strict;
 use v5.10.1;
 use Getopt::Long qw(:config gnu_getopt no_ignore_case auto_abbrev);
 my $help = <<EOF; # the following should fit w/o scrolling in 80x24 term:
-usage: public-inbox-extindex [options] EXTINDEX_DIR [INBOX_DIR]
+usage: public-inbox-extindex [options] [EXTINDEX_DIR] [INBOX_DIR...]
 
   Create and update external (detached) search indices
 
   --no-fsync          speed up indexing, risk corruption on power outage
+  --watch             run persistently and watch for inbox updates
   -L LEVEL            `medium', or `full' (default: full)
   --all               index all configured inboxes
   --jobs=NUM          set or disable parallelization (NUM=0)
@@ -22,26 +23,36 @@ usage: public-inbox-extindex [options] EXTINDEX_DIR [INBOX_DIR]
 BYTES may use `k', `m', and `g' suffixes (e.g. `10m' for 10 megabytes)
 See public-inbox-extindex(1) man page for full documentation.
 EOF
-my $opt = { quiet => -1, compact => 0, max_size => undef, fsync => 1 };
+my $opt = { quiet => -1, compact => 0, fsync => 1, scan => 1 };
 GetOptions($opt, qw(verbose|v+ reindex rethread compact|c+ jobs|j=i
                fsync|sync!
                indexlevel|index-level|L=s max_size|max-size=s
                batch_size|batch-size=s
-               gc
+               gc commit-interval=i watch scan!
                all help|h))
        or die $help;
 if ($opt->{help}) { print $help; exit 0 };
 die "--jobs must be >= 0\n" if defined $opt->{jobs} && $opt->{jobs} < 0;
-
-# require lazily to speed up --help
-my $eidx_dir = shift(@ARGV) // die "E: $help";
+require IO::Handle;
+STDOUT->autoflush(1);
+STDERR->autoflush(1);
 local $SIG{USR1} = 'IGNORE'; # to be overridden in eidx_sync
+# require lazily to speed up --help
 require PublicInbox::Admin;
 my $cfg = PublicInbox::Config->new;
+my $eidx_dir = shift(@ARGV);
+unless (defined $eidx_dir) {
+       if ($opt->{all} && $cfg->ALL) {
+               $eidx_dir = $cfg->ALL->{topdir};
+       } else {
+               die "E: $help";
+       }
+}
 my @ibxs;
 if ($opt->{gc}) {
        die "E: inbox paths must not be specified with --gc\n" if @ARGV;
-       die "E: --all not compatible --gc\n" if $opt->{all};
+       die "E: --all not compatible with --gc\n" if $opt->{all};
+       die "E: --watch is not compatible with --gc\n" if $opt->{watch};
 } else {
        @ibxs = PublicInbox::Admin::resolve_inboxes(\@ARGV, $opt, $cfg);
 }
@@ -56,6 +67,15 @@ if ($opt->{gc}) {
        $eidx->attach_config($cfg);
        $eidx->eidx_gc($opt);
 } else {
-       $eidx->attach_inbox($_) for @ibxs;
-       $eidx->eidx_sync($opt);
+       if ($opt->{all}) {
+               $eidx->attach_config($cfg);
+       } else {
+               $eidx->attach_inbox($_) for @ibxs;
+       }
+       if ($opt->{watch}) {
+               $cfg = undef; # save memory only after SIGHUP
+               $eidx->eidx_watch($opt);
+       } else {
+               $eidx->eidx_sync($opt);
+       }
 }