queue-mgmt/qls

   1 #!/bin/bash
   2
   3 usage_help_text="qls [<OPTIONS>] [<ID>]
   4 List items in the queue, or show a particular task's details if <ID> is given.
   5 Fields:
   6   ID       task unique id
   7   ADDED    when the task was added
   8   STATE    queued, running, ended, ended(<CODE>), gone
   9   COMMAND  command to run, shown either in multiple lines (2nd and following lines prepended by TABs)
  10            or in a single line with backslash and newline chars escaped by backslash
  11 OPTIONS:
  12   -q, --quiet
  13   --multiline  (default)
  14   -M, --no-multiline, --escape-command
  15   -d, --queue-dir <DIR>
  16   -H, --no-header
  17   -h, --hide-state <STATE>
  18   -e, --show-exit-code"
  19
  20 qls_multiline=yes
  21 qls_header=yes
  22 qls_show_exit_status=''
  23 qls_hide_states=''
  24
  25 . qadd-common
  26
  27
  28 if [ ! $quiet ]
  29 then
  30         echo "qls: $queue_dir" >&2
  31 fi
  32
  33 if [ $# -gt 0 ]
  34 then
  35         for item_id in "$@"
  36         do
  37                 itemfile=$queue_dir/$item_id.comm
  38                 load_command_global "$itemfile"
  39                 echo -n "Command:       "
  40                 declare -p command | cut -d= -f2-
  41
  42                 state=`qtask_state "$item_id"`
  43                 echo "State:    $state"
  44
  45                 pidfile=$queue_dir/$item_id.pid
  46                 if [ -e "$pidfile" ]
  47                 then
  48                         pid=`cat "$pidfile" 2>/dev/null`
  49                         echo -n "Pid:   $pid"
  50                         task_pidns=`cat "$queue_dir/$item_id.pidns" 2>/dev/null`
  51                         curr_pidns=`readlink /proc/self/ns/pid`
  52                         if [ "$task_pidns" != "$curr_pidns" ]; then echo " pidns=${task_pidns#*:}"; else echo; fi
  53
  54                         timestamp=`stat -c %Y "$itemfile"`
  55                         datetime=`date +"%F %T" -d @$timestamp`
  56                         echo "Added:    $datetime"
  57
  58                         timestamp=`stat -c %Y "$pidfile"`
  59                         datetime=`date +"%F %T" -d @$timestamp`
  60                         echo "Started:  $datetime"
  61
  62                         if [ -d /proc/$pid ]
  63                         then
  64                                 load_command_global "/proc/$pid/cmdline"
  65                                 echo -n "Process:       "
  66                                 declare -p command | cut -d= -f2-
  67                                 process_status=`grep "^State:" /proc/$pid/status 2>/dev/null | sed -e 's/^[^:]\+:\s*//'`
  68                                 echo "Process Status:   $process_status"
  69                         fi
  70                 fi
  71
  72                 endfile=$queue_dir/$item_id.end
  73                 if [ -e "$endfile" ]
  74                 then
  75                         timestamp=`stat -c %Y "$endfile"`
  76                         datetime=`date +"%F %T" -d @$timestamp`
  77                         echo "Ended:    $datetime"
  78
  79                         code=`cat "$endfile"`
  80                         echo "Returned: $code"
  81                 fi
  82         done
  83
  84         exit
  85 fi
  86
  87 if [ $qls_header ]
  88 then
  89         echo "ID        ADDED   STATE   COMMAND"
  90 fi
  91
  92 shopt -s nullglob
  93
  94 for itemfile in "$queue_dir"/?.comm "$queue_dir"/??.comm "$queue_dir"/???.comm "$queue_dir"/????.comm "$queue_dir"/?????.comm "$queue_dir"/??????.comm "$queue_dir"/???????.comm
  95 do
  96         item_id=`basename "$itemfile" .comm`
  97         state=`qtask_state "$item_id"`
  98         state_shown=$state
  99
 100         if grep -qw "$state" <<< "$qls_hide_states"
 101         then
 102                 continue
 103         fi
 104
 105         timestamp=`stat -c %Y "$itemfile"`
 106         datetime=`date +"%F %T" -d @$timestamp`
 107         load_command_global "$itemfile"
 108         command_str=${command[*]}
 109
 110         if [ $qls_show_exit_status ]
 111         then
 112                 if [ "$state" = ended ]
 113                 then
 114                         code=`cat "$queue_dir/$item_id.end"`
 115                         code=${code:-NA}
 116                         state_shown="$state($code)"
 117                 fi
 118         fi
 119
 120         if [ $qls_multiline ]
 121         then
 122                 command_shown=${command_str//$'\n'/$'\n\t\t\t'}
 123         else
 124                 command_shown=${command_str//\\/\\\\}
 125                 command_shown=${command_shown//$'\n'/\\n}
 126         fi
 127
 128         echo "$item_id  $datetime       $state_shown    $command_shown"
 129 done