summaryrefslogtreecommitdiff
path: root/etc/bash_completion.d/vyatta-cfg
blob: 01b2a135a296c3f73c488d304605994cb84b8da2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
# vyatta bash configuration mode completion

# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# A copy of the GNU General Public License is available as
# `/usr/share/common-licenses/GPL' in the Debian GNU/Linux distribution
# or on the World Wide Web at `http://www.gnu.org/copyleft/gpl.html'.
# You can also obtain it by writing to the Free Software Foundation,
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
# 
# Author: Vyatta
# Description: bash completion for Vyatta configuration commands
# 
# **** End License ****

# Turn on history logging
export HISTCONTROL=
export HISTFILESIZE=10000
export HISTSIZE=10000
export HISTTIMEFORMAT='%FT%T%z ' 
export PROMPT_COMMAND='history -a'

# remove colon from completion word seperators
export COMP_WORDBREAKS=${COMP_WORDBREAKS/:/}

builtin set histappend=1

# only do this if we are going into configure mode
if [ "$_OFR_CONFIGURE" != "ok" ]; then
  return 0
fi

if [ -r /etc/default/vyatta ]; then
  source /etc/default/vyatta
fi

# function for shell api
vyatta_cli_shell_api ()
{
  local noeval=''
  if [ "$1" == NOEVAL ]; then
    noeval=true
    shift
  fi
  local outstr
  if ! outstr=$(${vyatta_sbindir}/my_cli_shell_api -- "$@"); then
    # display the error output (if any) and then fail
    if [ -n "$outstr" ]; then
      echo "$outstr"
    fi
    return 1
  fi
  # eval the output (if any)
  if [ -n "$outstr" ]; then
    if [ -n "$noeval" ]; then
      echo "$outstr"
    else
      eval "$outstr"
    fi
  fi
  return 0
}

# set up the session environment
## note: this can not use vyatta_cli_shell_api() above since it "declares"
##       env vars.
eval "$(${vyatta_sbindir}/my_cli_shell_api getSessionEnv $$)"

declare is_set=0
declare last_idx=0
declare -a comp_words=()

# commands to unalias
declare -a unalias_cmds=( clear configure date debug edit exit load merge \
                          no run set show save terminal undebug up top )
for cmd in "${unalias_cmds[@]}"; do
  unalias $cmd >& /dev/null
done

show ()
{
  local -a opts=()
  local -a args=()
  for arg in "$@"; do
    if [ "$arg" == "-all" ]; then
      opts+=('--show-show-defaults')
    else
      args+=("$arg")
    fi
  done
  cli-shell-api "${opts[@]}" -- showCfg "${args[@]}" \
    | eval "${VYATTA_PAGER:-cat}"
}

commit ()
{
  if ! vyatta_cli_shell_api sessionChanged; then
    echo "No configuration changes to commit"
    return 1;
  fi
  local comment="commit"
  local next=0
  local -a args=()
  for arg in "$@"; do
    if [ "$next" == "1" ]; then
      comment=$arg
      next=0;
    elif [ "$arg" == "comment" ]; then
      next=1
    elif [ "$arg" == "confirm" ]; then
      echo Use commit-confirm command
      return 1;
    else
      args[${#args[@]}]="$arg"    
    fi
  done

  export COMMIT_COMMENT="$comment"
  export COMMIT_VIA=cli
  /opt/vyatta/sbin/my_commit "${args[@]}" 2>&1 | grep -v '^run-parts:'
  unset COMMIT_VIA
  unset COMMIT_COMMENT
}

commit-confirm ()
{
  if ! vyatta_cli_shell_api sessionChanged; then
    echo "No configuration changes to commit"
    return 1;
  fi
  local -a args=()
  local first=1
  local minutes=10
  for arg in "$@"; do
    if [ "$first" = "1" ]; then
      if [[ $arg = *[[:digit:]]* ]]; then
        minutes=$arg
      else
        args[${#args[@]}]="$arg"    
      fi
      first=0
    else
      args[${#args[@]}]="$arg"    
    fi
  done
  cmd="${vyatta_sbindir}/vyatta-config-mgmt.pl --action=commit-confirm \
                                               --minutes=$minutes"
  eval "sudo sg vyattacfg \"$cmd\" "
  if [ $? = 0 ]; then
    commit "$@"
  fi
}

confirm ()
{
  ${vyatta_sbindir}/vyatta-config-mgmt.pl --action=confirm
}

compare ()
{
  ${vyatta_sbindir}/vyatta-config-mgmt.pl --action=diff "$@" | eval "${VYATTA_PAGER:-cat}"
}

save ()
{
  if vyatta_cli_shell_api sessionChanged; then
    echo -e "Warning: you have uncommitted changes that will not be saved.\n"
  fi
  # return to top level.
  reset_edit_level
  # transform individual args into quoted strings
  local arg=''
  local save_cmd="${vyatta_sbindir}/vyatta-save-config.pl"
  for arg in "$@"; do
    save_cmd+=" '$arg'"
  done
  eval "sudo sg vyattacfg \"umask 0002 ; $save_cmd\""
  vyatta_cli_shell_api unmarkSessionUnsaved
}

reboot ()
{
  echo "Exit from configure mode before rebooting."
}

rollback ()
{
  if [ $# != 1 ]; then
    echo "Error: must include a revision # to rollback to"
    return 1;
  fi
  ${vyatta_sbindir}/vyatta-config-mgmt.pl --action=rollback --revnum "$@"
}

shutdown ()
{
  echo "Exit from configure mode before shutting down system."
}

reset_edit_level ()
{
  vyatta_cli_shell_api getEditResetEnv
  return $?
}

load ()
{
  # don't load if there are uncommitted changes.
  if vyatta_cli_shell_api sessionChanged; then
    echo "Cannot load: configuration modified."
    echo "Commit or discard the changes before loading a config file."
    return 1
  fi
  # return to top level.
  reset_edit_level
  ${vyatta_sbindir}/vyatta-load-config.pl "$@"
}

merge ()
{
  # don't load if there are uncommitted changes.
  if vyatta_cli_shell_api sessionChanged; then
    echo "Cannot load: configuration modified."
    echo "Commit or discard the changes before loading a config file."
    return 1
  fi
  # return to top level.
  reset_edit_level
  ${vyatta_sbindir}/vyatta-load-config.pl "$@" --merge
}

top ()
{
  if vyatta_cli_shell_api editLevelAtRoot; then
    echo "Already at the top level"
    return 0
  fi

  # go to the top level.
  reset_edit_level
}

edit ()
{
  vyatta_cli_shell_api getEditEnv "$@"
  return $?
}

up ()
{
  vyatta_cli_shell_api getEditUpEnv "$@"
  return $?
}

really_exit()
{

  if vyatta_cli_shell_api sessionUnsaved; then
    echo "Warning: configuration changes have not been saved."
  fi
  vyatta_cli_shell_api teardownSession
  unset _OFR_CONFIGURE
  builtin exit 0
}

exit ()
{
  local discard
  if [ $# == 0 ]; then
    discard=0
  elif [ $# == 1 ] && [ "$1" == "discard" ]; then
    discard=1
  else
    echo "Invalid argument \"$*\" for 'exit'"
    return 1
  fi

  if vyatta_cli_shell_api editLevelAtRoot; then
    # we are at the root level. check if we can really exit.
    if vyatta_cli_shell_api sessionChanged; then
      if (( ! discard )); then
        echo "Cannot exit: configuration modified."
        echo "Use 'exit discard' to discard the changes and exit."
        return 1
      fi
    fi
    really_exit
  fi

  # "exit" to the root level.
  reset_edit_level
}

# run op mode commands
run ()
{
 if [ $# == 0 ]; then
  echo Incomplete command
  return 1
 fi 
  _vyatta_op_run $@
}

# do op mode completion
vyatta_run_complete ()
{
  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  COMP_WORDS=( "${COMP_WORDS[@]:1}" )
  (( COMP_CWORD -= 1 ))
  _vyatta_op_expand
  
  eval $restore_shopts
}

vyatta_loadsave_complete()
{
  # Generate completion help for the "load" and "save" commands

  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  # Only provide completions after command name has been typed, but
  # before any characters of the command argument have been entered.
  # File name completion, and completion of the various URL formats
  # is not supported yet.
  #
  if [ $COMP_CWORD -eq 1 -a -z "${COMP_WORDS[1]}" ]; then
      echo
      echo "Possible completions:"
      if [ "${COMP_WORDS[0]}" = "load" ]; then
	  echo -e "  <Enter>\t\t\t\tLoad from system config file"
	  echo -e "  <file>\t\t\t\tLoad from file on local machine"
	  echo -e "  scp://<user>:<passwd>@<host>/<file>\tLoad from file on remote machine"
	  echo -e "  ftp://<user>:<passwd>@<host>/<file>\tLoad from file on remote machine"
	  echo -e "  http://<host>/<file>\t\t\tLoad from file on remote machine"
	  echo -e "  tftp://<host>/<file>\t\t\tLoad from file on remote machine"
      elif [ "${COMP_WORDS[0]}" = "merge" ]; then
	  echo -e "  <Enter>\t\t\t\tMerge from system config file"
	  echo -e "  <file>\t\t\t\tMerge from file on local machine"
	  echo -e "  scp://<user>:<passwd>@<host>/<file>\tMerge from file on remote machine"
	  echo -e "  ftp://<user>:<passwd>@<host>/<file>\tMerge from file on remote machine"
	  echo -e "  http://<host>/<file>\t\t\tMerge from file on remote machine"
	  echo -e "  tftp://<host>/<file>\t\t\tMerge from file on remote machine"
      elif [ "${COMP_WORDS[0]}" = "save" ]; then
	  echo -e "  <Enter>\t\t\t\tSave to system config file"
	  echo -e "  <file>\t\t\t\tSave to file on local machine"
	  echo -e "  scp://<user>:<passwd>@<host>/<file>\tSave to file on remote machine"
	  echo -e "  ftp://<user>:<passwd>@<host>/<file>\tSave to file on remote machine"
	  echo -e "  tftp://<host>/<file>\t\t\tSave to file on remote machine"
      fi
      COMPREPLY=( "" " " )
  else
      COMPREPLY=()
  fi

  eval $restore_shopts
}

loadkey()
{
  # don't load if there are uncommitted changes.
  if vyatta_cli_shell_api sessionChanged; then
    echo "Cannot load: configuration modified."
    echo "Commit or discard the changes before loading a config file."
    return 1
  fi
  # return to top level.
  reset_edit_level
  ${vyatta_sbindir}/vyatta-load-user-key.pl "$@"
}

vyatta_loadkey_complete()
{
  case "$COMP_CWORD" in
      1) if [ -z "${COMP_WORDS[1]}" ]; then
	  COMPREPLY=( $(getent passwd | awk -F: '$7 == "/bin/vbash" { print $1}') )
	 else
	  COMPREPLY=( $(compgen -u -- ${COMP_WORDS[1]} ) )
         fi ;;
      2) if [ -z "${COMP_WORDS[2]}" ]; then
	  echo
	  echo "Possible completions:"
	  echo -e "  <file>\t\t\t\tLoad from file on local machine"
	  echo -e "  scp://<user>@<host>/<file>\tLoad from file on remote machine"
	  echo -e "  ftp://<user>@<host>/<file>\tLoad from file on remote machine"
	  echo -e "  http://<host>/<file>\t\t\tLoad from file on remote machine"
	  echo -e "  tftp://<host>/<file>\t\t\tLoad from file on remote machine"
	  COMPREPLY=()
	 else
	  COMPREPLY=( $(compgen -f -- ${COMP_WORDS[2]} ) )
	 fi ;;
  esac
}

print_commit_log ()
{
  local -a array
  eval "array=($(${vyatta_sbindir}/vyatta-config-mgmt.pl --action=show-commit-log-brief))"
  local count=0
  for i in "${array[@]}"; do
     i=${i//_/ }
     echo -e "$count\t$i"
     (( count++ ))
  done
}

vyatta_rollback_complete ()
{
  # Generate completion help for the "rollback" command

  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  # Only provide completions after command name has been typed, but
  # before any characters of the command argument have been entered.
  if [ $COMP_CWORD -eq 1 -a -z "${COMP_WORDS[1]}" ]; then
      echo
      echo "Possible completions:"
      echo -e "<N>\tRollback to revision N (currently requires reboot)"
      print_commit_log
      COMPREPLY=( "" " " )
  else
      COMPREPLY=()
  fi

  eval $restore_shopts
}

vyatta_compare_complete ()
{
  # Generate completion help for the "compare" command

  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  # Only provide completions after command name has been typed, but
  # before any characters of the command argument have been entered.
  if [ $COMP_CWORD -eq 1 -a -z "${COMP_WORDS[1]}" ]; then
      echo
      echo "Possible completions:"
      echo -e "<enter>\tCompare working & active configurations"
      echo -e "<N>\tCompare working with revision N"
      echo -e "<N> <M>\tCompare revision N with M"
      print_commit_log
      COMPREPLY=( "" " " )
  elif [ $COMP_CWORD -eq 2 -a -z "${COMP_WORDS[2]}" ]; then
      echo
      echo "Possible completions:"
      echo -e "<enter>\tCompare working & active configurations"
      echo -e "<N>\tCompare working with revision N"
      echo -e "<N> <M>\tCompare revision N with M"
      print_commit_log
      COMPREPLY=( "" " " )
  else
      COMPREPLY=()
  fi

  eval $restore_shopts
}

vyatta_commit_complete ()
{
  # Generate completion help for the "commit-confirm" command

  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  # Only provide completions after command name has been typed, but
  # before any characters of the command argument have been entered.
  if [ $COMP_CWORD -eq 1 -a -z "${COMP_WORDS[1]}" ]; then
      echo
      echo "Possible completions:"
      if [ "${COMP_WORDS[0]}" = "commit" ]; then
         echo -e "<enter>\tCommit working configuration"
      elif [ "${COMP_WORDS[0]}" = "commit-confirm" ]; then
         echo -e "<enter>\tCommit, rollback/reboot in 10 minutes if no confirm"
         echo -e "<N>\tCommit, rollback/reboot in N minutes if no confirm"
      fi
      echo -e "comment\tComment for commit log"
      COMPREPLY=( "" " " )
  elif [ "${COMP_WORDS[1]}" = "comment" ]; then
            echo
      echo "Possible completions:"
      echo -e "<txt>\tText comment for commit log (e.g. \"add user bob\")"
      COMPREPLY=( "" " " )
  else
      COMPREPLY=()
  fi

  eval $restore_shopts
}

get_prefix_filtered_list ()
{
  # $1: prefix
  # $2: \@list
  # $3: \@filtered
  declare -a olist
  local pfx=$1
  pfx=${pfx#\"}
  eval "olist=( \"\${$2[@]}\" )"
  local idx=0
  for elem in "${olist[@]}"; do
    local sub=${elem#$pfx}
    if [ "$elem" == "$sub" ] && [ -n "$pfx" ]; then
      continue
    fi
    eval "$3[$idx]=\"$elem\""
    (( idx++ ))
  done
}

get_prefix_filtered_list2 ()
{
  # $1: prefix
  # $2: \@list
  # $3: \@filtered
  # $4: \@list2
  # $5: \@filtered2
  declare -a olist
  local pfx=$1
  pfx=${pfx#\"}
  eval "olist=( \"\${$2[@]}\" )"
  eval "local orig_len=\${#$2[@]}"
  local orig_idx=0
  local idx=0
  for (( orig_idx = 0; orig_idx < orig_len; orig_idx++ )); do
    eval "local elem=\${$2[$orig_idx]}"
    eval "local elem2=\${$4[$orig_idx]}"
    local sub=${elem#$pfx}
    if [ "$elem" == "$sub" ] && [ -n "$pfx" ]; then
      continue
    fi
    eval "$3[$idx]=\"$elem\""
    eval "$5[$idx]=\"$elem2\""
    (( idx++ ))
  done
}

declare vyatta_cfg_help=""
declare vyatta_cfg_type=""
declare vyatta_cfg_tag=0
declare vyatta_cfg_multi=0
declare -a vyatta_cfg_allowed=()
declare vyatta_cfg_comp_help=""
declare -a vyatta_cfg_val_type=()
declare -a vyatta_cfg_val_help=()

declare -a _get_help_text_items=()
declare -a _get_help_text_helps=()
get_help_text ()
{
  vyatta_help_text="\\nPossible completions:"
  for (( idx = 0; idx < ${#_get_help_text_items[@]}; idx++ )); do
    vyatta_help_text+="\\n\\x20\\x20"
    if [ ${#_get_help_text_items[idx]} -lt 6 ]; then
      vyatta_help_text+="${_get_help_text_items[idx]}\\t\\t"
    elif [ ${#_get_help_text_items[idx]} -lt 14 ]; then
      vyatta_help_text+="${_get_help_text_items[idx]}\\t"
    else
      vyatta_help_text+="${_get_help_text_items[idx]}\\n\\x20\\x20\\t\\t"
    fi
    vyatta_help_text+="${_get_help_text_helps[idx]}"
  done
  if [ -n "$vyatta_cfg_comp_help" ]; then
    local hstr=${vyatta_cfg_comp_help//\'/\'\\\\\\\'\'}
    vyatta_help_text+="\\n\\nDetailed information:\\n"
    local sIFS=$IFS
    IFS='
'
    local chstr=$(echo -en "$hstr\n" \
                  | while read comp_help_line; do
                      echo "vyatta_help_text+='  $comp_help_line\\n';"
                    done)
    eval "$chstr"
    IFS=$sIFS
  fi
}

get_value_format_string ()
{
  local vtype=$1
  if [[ $vtype = !* ]]; then
    echo -n '!'
    vtype="${vtype#!}"
  fi
  case "$vtype" in
    _*)
      echo -n "${vtype#_}"
      ;;
    txt)
      echo -n '<text>'
      ;;
    u32)
      echo -n '<0-4294967295>'
      ;;
    u32:*)
      echo -n "<${vtype##u32:}>"
      ;;
    range)
      echo -n "<start>-<end>"
      ;;
    ipv4)
      echo -n '<x.x.x.x>'
      ;;
    ipv6)
      echo -n '<h:h:h:h:h:h:h:h>'
      ;;
    ipv4net)
      echo -n '<x.x.x.x/x>'
      ;;
    ipv6net)
      echo -n '<h:h:h:h:h:h:h:h/x>'
      ;;
    ipv4range)
      echo -n '<x.x.x.x>-<x.x.x.x>'
      ;;
    ipv6range)
      echo -n '<h:h:h:h:h:h:h:h>-<h:h:h:h:h:h:h:h>'
      ;;
    bool)
      echo -n '<boolean>'
      ;;
    macaddr)
      echo -n '<h:h:h:h:h:h>'
      ;;
    *)
      echo -n "$vtype"
      ;;
  esac
}

declare -a vyatta_completions
declare vyatta_help_text="\\nNo help text available"
declare vyatta_do_help=false
vyatta_do_complete ()
{
  if $vyatta_do_help; then
    printf "$vyatta_help_text"
    COMPREPLY=( "" " " )
  else
    local -a f_comps=()
    local cword=
    if (( ${#COMP_WORDS[@]} > 0 )); then
      cword=${COMP_WORDS[COMP_CWORD]}
    fi
    get_prefix_filtered_list "$cword" vyatta_completions f_comps
    local estr="COMPREPLY=( "
    for w in "${f_comps[@]}"; do
      estr="$estr\"$w\" "
    done
    estr="${estr})"
    eval "$estr"
  fi
  vyatta_help_text="\\nNo help text available"
}

vyatta_simple_complete ()
{
  # when this function is called, it is expected that:
  # * "vyatta_help_text" is filled with the help text.
  # * "vyatta_completions" is an array of "filtered" possible completions
  #   (i.e., only those starting with the current last component).
  if $vyatta_do_help; then
    printf "$vyatta_help_text"
    COMPREPLY=( "" " " )
  else
    COMPREPLY=( "${vyatta_completions[@]}" )
  fi
  vyatta_help_text="\\nNo help text available"
}

generate_pipe_help ()
{
  _get_help_text_items=( "${_vyatta_pipe_completions[@]}" \
                         "${_vyatta_pipe_noncompletions[@]}" )
  _get_help_text_helps=()
  for comp in "${_get_help_text_items[@]}"; do
    _get_help_text_helps+=("$(_vyatta_pipe_help "$comp")")
  done
  get_help_text
}

# env variables for shell api completion
declare _cli_shell_api_last_comp_val=''
declare _cli_shell_api_comp_help=''
declare -a _cli_shell_api_comp_values=()
declare -a _cli_shell_api_hitems=()
declare -a _cli_shell_api_hstrs=()

vyatta_config_complete ()
{
  local restore_shopts=$( shopt -p extglob nullglob | tr \\n \; )
  shopt -s extglob nullglob

  if [ "$COMP_LINE" == "$VYATTA_COMP_LINE" ]; then
    VYATTA_COMP_LINE=$VYATTA_COMP_LINE_EMPTY
    vyatta_do_help=true
  else
    VYATTA_COMP_LINE=$COMP_LINE
    vyatta_do_help=false
  fi

  # handle pipe
  if _vyatta_pipe_completion "${COMP_WORDS[@]}"; then
    generate_pipe_help
    vyatta_completions=( "${_vyatta_pipe_completions[@]}" )
    vyatta_do_complete
    eval $restore_shopts
    return
  fi

  if (( ${#COMP_WORDS[@]} < 2 )); then
    _get_help_text_items=( "confirm" \
                           "comment" \
                           "commit" \
                           "commit-confirm" \
                           "compare" \
                           "copy" \
                           "delete" \
                           "discard" \
                           "edit" \
                           "exit" \
                           "load" \
                           "loadkey" \
                           "merge" \
                           "rename" \
                           "rollback" \
                           "run" \
                           "save" \
                           "set" \
                           "show" )
    _get_help_text_helps=( \
      "Confirm prior commit-confirm" \
      "Add comment to this configuration element" \
      "Commit the current set of changes" \
      "Commit the current set of changes with 'confirm' required" \
      "Compare configuration revisions" \
      "Copy a configuration element" \
      "Delete a configuration element" \
      "Discard uncommitted changes" \
      "Edit a sub-element" \
      "Exit from this configuration level" \
      "Load configuration from a file and replace running configuration" \
      "Load user SSH key from a file" \
      "Load configuration from a file and merge running configuration" \
      "Rename a configuration element" \
      "Rollback to a prior config revision (requires reboot)" \
      "Run an operational-mode command" \
      "Save configuration to a file" \
      "Set the value of a parameter or create a new element" \
      "Show the configuration (default values may be suppressed)" \
    )
    if (( ${#COMP_WORDS[@]} == 1 )); then
      declare -a fitems=()
      declare -a fstrs=()
      get_prefix_filtered_list2 "${COMP_WORDS[0]}" \
        _get_help_text_items fitems _get_help_text_helps fstrs
      _get_help_text_items=( "${fitems[@]}" )
      _get_help_text_helps=( "${fstrs[@]}" )
    fi
    get_help_text
    vyatta_completions=( "${_get_help_text_items[@]}" )
    vyatta_do_complete
    eval $restore_shopts
    return
  fi

  local command=${COMP_WORDS[0]}
  local last_comp="${COMP_WORDS[COMP_CWORD]}"

  # handle "exit"
  if [ "$command" == "exit" ]; then
    if (( COMP_CWORD > 1 )); then
      COMPREPLY=()
      eval $restore_shopts
      return
    fi
    _get_help_text_items=("discard")
    _get_help_text_helps=("Discard any changes")
    get_help_text
    vyatta_completions=("discard")
    vyatta_do_complete
    eval $restore_shopts
    return
  fi

  local -a api_args=("${COMP_WORDS[@]}")

  # handle "copy" and "rename"
  if [ "$command" == "copy" -o "$command" == "rename" ]; then
    # Syntax of copy and rename commands are:
    #
    #     copy/rename <param1> <sub-param1> to <param2> <sub-param2>
    #
    # where <param1> and <param2> are configuration parameters
    # in the tree at the current edit level.
    #
    # If parsing index 1 or 2 (i.e. <param1> or <sub-param1>),
    # fall through this test to the parameter parsing code below.
    if (( COMP_CWORD == 3 )); then
      # If parsing index 3, there's only one option.
      _get_help_text_items=("to")
      _get_help_text_helps=("Set destination")
      get_help_text
      vyatta_completions=("to")
      vyatta_do_complete
      eval $restore_shopts
      return
    elif (( COMP_CWORD > 3 && COMP_CWORD < 6 )); then
      # If parsing index 4 or 5, start completion at <param2>.
      api_args=("$command" "${COMP_WORDS[@]:4}")
    elif (( COMP_CWORD > 5 )); then
      # If parsing after index 5, there are no more valid parameters
      COMPREPLY=()
      eval $restore_shopts
      return
    fi
  fi

  if ! vyatta_cli_shell_api getCompletionEnv "${api_args[@]}"; then
    # invalid completion
    eval $restore_shopts
    return
  fi
  vyatta_cfg_comp_help=$_cli_shell_api_comp_help
  _get_help_text_helps=( "${_cli_shell_api_hstrs[@]}" )
  if $_cli_shell_api_last_comp_val; then
    # last component is a "value". need to do the following:
    #   use comp_help if exists
    #   prefix filter comp_values
    #   replace any <*> in comp_values with ""
    #   convert help items to <...> representation
    _get_help_text_items=()
    for ((i = 0; i < ${#_cli_shell_api_hitems[@]}; i++)); do
      local t=$(get_value_format_string "${_cli_shell_api_hitems[i]}")
      _get_help_text_items+=("$t")
    done
    vyatta_completions=()
    for ((i = 0; i < ${#_cli_shell_api_comp_values[@]}; i++)); do
      if [ -z "$last_comp" ] \
         && [[ "${_cli_shell_api_comp_values[i]}" = \<*\> ]]; then
        vyatta_completions+=("")
      elif [ -z "$last_comp" ] \
           || [[ "${_cli_shell_api_comp_values[i]}" = "$last_comp"* ]]; then
        vyatta_completions+=("${_cli_shell_api_comp_values[i]}")
      fi
    done
  else
    _get_help_text_items=( "${_cli_shell_api_hitems[@]}" )
    vyatta_completions=( "${_cli_shell_api_comp_values[@]}" )
  fi
  get_help_text
  vyatta_simple_complete
  eval $restore_shopts
}

if ! vyatta_cli_shell_api setupSession; then
  echo 'Failed to set up config session'
  builtin exit 1
fi

# disallow 'Ctrl-D' exit, since we need special actions on 'exit'
builtin set -o ignoreeof 1

reset_edit_level
alias set=/opt/vyatta/sbin/my_set
alias delete=/opt/vyatta/sbin/my_delete
alias rename=/opt/vyatta/sbin/my_rename
alias copy=/opt/vyatta/sbin/my_copy
alias comment=/opt/vyatta/sbin/my_comment
alias discard=/opt/vyatta/sbin/my_discard

export VYATTA_COMP_LINE_EMPTY=VYATTA_COMP_LINE_EMPTY
export VYATTA_COMP_LINE=$VYATTA_COMP_LINE_EMPTY

# readline bindings
bind 'set show-all-if-ambiguous on'
if ! bind -p |grep -q '\\C-x\\C-t'; then
  bind '"\C-x\C-t": kill-region'
fi
if ! bind -p |grep -q '\\C-x\\C-o'; then
  bind '"\C-x\C-o": copy-region-as-kill'
fi

# note: now that we're using bash's new "empty completion" (-E), it becomes
# necessary to capture the "default completion" (-D) as well in order to
# provide completion "within the first word". (see below for -E and -D
# assignments.) however, this changes the previous behavior that uses
# "filename completion" as default completion.
#
# since we explicitly specify the completion function for each vyatta command,
# the "default completion" only applies in two scenarios:
#   1. "within" the first word, and
#   2. after any non-vyatta commands that do not have completion functions.
#
# therefore, to provide the previous behavior, just detect scenario 2 above
# and use filename completion.
vyatta_config_default_complete ()
{
  local wc=${#COMP_WORDS[@]}
  if (( wc < 2 )); then
    vyatta_config_complete
  else
    # after the first word => cannot be vyatta command so use original default
    compopt -o filenames
    _filedir_xspec
  fi
}

complete -E -F vyatta_config_complete 
complete -D -F vyatta_config_default_complete
complete -F vyatta_config_complete set
complete -F vyatta_config_complete delete
complete -F vyatta_config_complete show
complete -F vyatta_config_complete edit
complete -F vyatta_config_complete exit
complete -F vyatta_run_complete run
complete -F vyatta_loadsave_complete save
complete -F vyatta_loadsave_complete load
complete -F vyatta_loadsave_complete merge
complete -F vyatta_loadkey_complete loadkey
complete -F vyatta_compare_complete compare
complete -F vyatta_config_complete comment
complete -F vyatta_config_complete copy
complete -F vyatta_config_complete rename
complete -F vyatta_rollback_complete rollback
complete -F vyatta_commit_complete commit
complete -F vyatta_commit_complete commit-confirm

# Local Variables:
# mode: shell-script
# sh-indentation: 4
# End: