-#!/usr/bin/perl
-# Batch EXecutor 3.0 -- Show Queued Jobs
-# (c) 2011-2012 Martin Mares <mj@ucw.cz>
-
-use strict;
-use warnings;
-use Getopt::Long;
-use POSIX;
-use BEX;
-
-my $op_by_job;
-my $op_by_host;
-my $op_rm;
-my $op_move_to;
-
-my $queue_name;
-my $given_job;
-
-sub usage() {
- print <<AMEN ;
-Usage: bex ls [<options and actions>] [[!]<machine-or-class> ...]
-
-Actions:
- --by-job Show jobs sorted by job ID (default)
--h, --by-host Show jobs sorted by host
- --rm Remove jobs from the queue
- --move-to=<queue> Move jobs to a different queue
-
-Options:
--j, --job=<id> Act on the specified job (default: on all)
--q, --queue=<name> Act on the given queue
-AMEN
- exit 0;
-}
-
-GetOptions(
- "by-job!" => \$op_by_job,
- "h|by-host!" => \$op_by_host,
- "rm!" => \$op_rm,
- "move-to=s" => \$op_move_to,
- "j|job=s" => \$given_job,
- "q|queue=s" => \$queue_name,
- "help" => \&usage,
-) or die "Try `bex ls --help' for more information.\n";
-
-my @machines = BEX::Config::parse_machine_list(@ARGV ? @ARGV : '*');
-my $queue = BEX::Queue->new($queue_name);
-
-# Select jobs
-my %jobs = ();
-my %machs = ();
-for my $m (@machines) {
- for my $j ($queue->scan($m)) {
- if (defined $given_job) {
- next if $j ne $given_job;
- }
- push @{$jobs{$j}}, $m;
- push @{$machs{$m}}, $j;
- }
-}
-
-sub do_ls();
-sub do_rm();
-sub do_move_to();
-
-my $ops = 0 + defined($op_by_host) + defined($op_by_job) + defined($op_rm) + defined($op_move_to);
-if ($ops > 1) { die "Multiple actions are not allowed\n"; }
-
-if ($op_rm) { do_rm(); }
-elsif (defined $op_move_to) { do_move_to(); }
-else { do_ls(); }
-exit 0;
-
-sub do_ls()
-{
- my %stat = ();
- my %mach_locked = ();
- for my $m (keys %machs) {
- $mach_locked{$m} = $queue->is_locked($m, undef);
- for my $j (@{$machs{$m}}) {
- my $st = $queue->read_job_status($m, $j);
- if (defined($st->{'Time'}) && defined($st->{'Status'})) {
- $stat{$m}{$j} = ' [' . $st->{'Status'} . ' on ' .
- POSIX::strftime('%Y-%m-%d', localtime $st->{'Time'}) . ']';
- } else {
- $stat{$m}{$j} = '';
- }
- if ($mach_locked{$m} || $queue->is_locked($m, $j)) {
- $stat{$m}{$j} .= ' [LOCKED]';
- }
- }
- }
-
- if ($queue->is_locked(undef, undef)) {
- print "### Queue lock present\n\n";
- }
-
- if ($op_by_host) {
- for my $m (sort keys %machs) {
- print "$m", ($mach_locked{$m} ? ' [LOCKED]' : ''), "\n";
- for my $j (@{$machs{$m}}) {
- print "\t" . $queue->job_name($j) . $stat{$m}{$j}, "\n";
- }
- }
- } else {
- for my $j (sort keys %jobs) {
- print $queue->job_name($j), "\n";
- for my $m (sort @{$jobs{$j}}) {
- print "\t$m", $stat{$m}{$j}, "\n";
- }
- }
- }
-}
-
-sub do_rm()
-{
- my $err = 0;
- for my $m (sort keys %machs) {
- for my $j (sort @{$machs{$m}}) {
- if (!$queue->lock($m, $j)) {
- print STDERR "Cannot remove $m:", $queue->job_name($j), ", it is locked\n";
- $err = 1;
- } else {
- $queue->update_job_status($m, $j, 'REMOVED');
- $queue->remove($m, $j);
- print "Removed $m:", $queue->job_name($j), "\n";
- }
- }
- }
- $queue->unlock;
- exit $err;
-}
-
-sub do_move_to()
-{
- my $err = 0;
- my $dest = BEX::Queue->new($op_move_to);
- $dest->{'Name'} ne $queue->{'Name'} or die "Moving to the same queue is not permitted\n";
- for my $j (sort keys %jobs) {
- my $job = BEX::Job->new_from_file($queue->job_file($j));
- for my $m (sort @{$jobs{$j}}) {
- if (!$queue->lock($m, $j)) {
- print STDERR "Cannot move $m:", $queue->job_name($j), ", it is locked\n";
- $err = 1;
- } else {
- my $enq = $dest->enqueue($m, $job);
- if ($enq) {
- $dest->update_job_status($m, $job->id, 'NEW', 'Moved to this queue');
- } else {
- $dest->log($m, $job->id, 'REQUEUE', 'Moved to this queue');
- }
- $queue->update_job_status($m, $job->id, 'REMOVED', 'Moved from this queue');
- $queue->remove($m, $j);
- print "Moved $m:", $dest->job_name($j);
- print " (already queued)" if !$enq;
- print "\n";
- }
- }
- }
- $queue->unlock;
- exit $err;
-}