Fix mi: use of wrong variable for error propagation
[lttng-tools.git] / extras / lttng-bash_completion
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1#
2# Copyright (c) - 2012 Simon Marchi <simon.marchi@polymtl.ca>
3#
4# This program is free software; you can redistribute it and/or modify it under
5# the terms of the GNU General Public License as published by as published by
6# the Free Software Foundation; only version 2 of the License.
7#
8# This program is distributed in the hope that it will be useful, but WITHOUT
9# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11# more details.
12#
13# You should have received a copy of the GNU General Public License along with
14# this program; if not, write to the Free Software Foundation, Inc., 51
15# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16#
17
ba28686d 18# Generates COMPREPLY with the existing session names
fc256d99 19_lttng_complete_sessions() {
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20 # TODO
21 # This code does nothing for now. When there is a mecanism to get the
22 # existing sessions, use it to fill the sessions variable.
23 local sessions
24 sessions=""
25 COMPREPLY=( $(compgen -W "${sessions}" -- $cur) )
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26 return
27}
28
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29# Generates COMPREPLY with whatever is in the $options variable.
30_lttng_complete_options() {
31 COMPREPLY=( $(compgen -W "${options}" -- $cur) )
32}
33
34# Generates COMPREPLY with whatever is in the $commands variable.
35_lttng_complete_commands() {
36 COMPREPLY=( $(compgen -W "${commands}" -- $cur) )
37}
38
6c806062 39_lttng_cmd_addcontext() {
ba28686d 40 options=$(lttng add-context --list-options)
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41
42 case $prev in
43 --session|-s)
44 _lttng_complete_sessions
45 return
46 ;;
47 --channel|-c)
48 return
49 ;;
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50 --type|-t)
51 return
52 ;;
53 esac
54
55 case $cur in
56 -*)
ba28686d 57 _lttng_complete_options
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58 return
59 ;;
60 esac
61}
62
07bd6635 63_lttng_cmd_calibrate() {
ba28686d 64 options=$(lttng calibrate --list-options)
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65
66 case $cur in
67 -*)
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68 _lttng_complete_options
69 return
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70 ;;
71 esac
72}
73
fc256d99 74_lttng_cmd_create() {
ba28686d 75 options=$(lttng create --list-options)
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76
77 case $prev in
78 --output|-o)
79 _filedir -d
80 return
81 ;;
82 esac
83
84 case $cur in
85 -*)
ba28686d 86 _lttng_complete_options
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87 return
88 ;;
89 esac
90}
91
92_lttng_cmd_destroy() {
ba28686d 93 options=$(lttng destroy --list-options)
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94
95 case $cur in
96 -*)
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97 _lttng_complete_options
98 return
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99 ;;
100 *)
101 _lttng_complete_sessions
ba28686d 102 return
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103 ;;
104 esac
105}
07bd6635 106_lttng_cmd_disablechannel() {
ba28686d 107 options=$(lttng disable-channel --list-options)
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108
109 case $prev in
110 --session|-s)
111 _lttng_complete_sessions
112 return
113 ;;
114 esac
115
116 case $cur in
117 -*)
ba28686d 118 _lttng_complete_options
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119 return
120 ;;
121 esac
122}
07bd6635 123_lttng_cmd_disableevent() {
ba28686d 124 options=$(lttng disable-event --list-options)
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125
126 case $prev in
127 --session|-s)
128 _lttng_complete_sessions
129 return
130 ;;
131 --channel|-c)
132 return
133 ;;
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134 esac
135
136 case $cur in
137 -*)
ba28686d 138 _lttng_complete_options
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139 return
140 ;;
141 esac
142}
143
07bd6635 144_lttng_cmd_enablechannel() {
ba28686d 145 options=$(lttng enable-channel --list-options)
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146
147 case $prev in
148 --session|-s)
149 _lttng_complete_sessions
150 return
151 ;;
152 esac
153
154 case $cur in
155 -*)
ba28686d 156 _lttng_complete_options
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157 return
158 ;;
159 esac
160}
161
07bd6635 162_lttng_cmd_enableevent() {
ba28686d 163 options=$(lttng enable-event --list-options)
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164
165 case $prev in
166 --session|-s)
167 _lttng_complete_sessions
168 return
169 ;;
170 --channel|-c)
171 return
172 ;;
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173 --probe)
174 return
175 ;;
176 --function)
177 return
178 ;;
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179 esac
180
181 case $cur in
182 -*)
ba28686d 183 _lttng_complete_options
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184 return
185 ;;
186 esac
187}
188
189_lttng_cmd_list() {
ba28686d 190 options=$(lttng list --list-options)
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191
192 case $prev in
193 --channel|-c)
194 return
195 ;;
196 esac
197
198 case $cur in
199 -*)
ba28686d 200 _lttng_complete_options
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201 return
202 ;;
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203 *)
204 _lttng_complete_sessions
205 return
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206 esac
207}
208
6c806062 209_lttng_cmd_setsession() {
ba28686d 210 options=$(lttng set-session --list-options)
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211
212 case $cur in
213 -*)
ba28686d 214 _lttng_complete_options
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215 return
216 ;;
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217 *)
218 _lttng_complete_sessions
219 return
220 ;;
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221 esac
222}
223
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224_lttng_cmd_snapshot() {
225 options=$(lttng snapshot --list-options)
226 commands=$(lttng snapshot --list-commands)
227
228 _lttng_find_command $((command_found_index + 1))
229
230 if _lttng_cursor_is_after_command; then
231 case $prev in
232 --session|-s)
233 _lttng_complete_sessions
234 return
235 ;;
236 esac
237
238 case $cur in
239 -*)
240 _lttng_complete_options
241 ;;
242 esac
243 else
244 _lttng_complete_commands
245 fi
246}
247
fc256d99 248_lttng_cmd_start() {
ba28686d 249 options=$(lttng start --list-options)
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250
251 case $cur in
252 -*)
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253 _lttng_complete_options
254 return
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255 ;;
256 *)
257 _lttng_complete_sessions
ba28686d 258 return
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259 ;;
260 esac
261}
262
263_lttng_cmd_stop() {
ba28686d 264 options=$(lttng stop --list-options)
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265
266 case $cur in
267 -*)
ba28686d 268 _lttng_complete_options
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269 ;;
270 *)
271 _lttng_complete_sessions
272 ;;
273 esac
274}
275
276_lttng_cmd_version() {
ba28686d 277 options=$(lttng version --list-options)
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278
279 case $cur in
280 -*)
ba28686d 281 _lttng_complete_options
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282 ;;
283 esac
284}
285
0c95f5b2 286_lttng_cmd_view() {
ba28686d 287 options=$(lttng view --list-options)
0c95f5b2 288
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289 case $cur in
290 -*)
291 _lttng_complete_options
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292 ;;
293 esac
294}
295
fc256d99 296
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297
298_lttng_before_command() {
299 # Check if the previous word should alter the behavior
300 case $prev in
301 --group|-g)
302 COMPREPLY=( $(compgen -g -- $cur) )
303 return
304 ;;
305 --sessiond-path)
306 _filedir
307 return
308 ;;
309 esac
310
311 case $cur in
312 -*)
313 # If the current word starts with a dash, complete with options
ba28686d 314 _lttng_complete_options
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315 ;;
316 *)
317 # Otherwise complete with commands
ba28686d 318 _lttng_complete_commands
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319 ;;
320 esac
321}
322
323_lttng_after_command() {
324 local cmd_name
325
ba28686d 326 cmd_name=_lttng_cmd_${command_found//-/}
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327
328 type -t $cmd_name | grep -q 'function' && $cmd_name
329}
330
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331# Check if the word passed as the first parameter corresponds to a
332# command. $command must be set to the list of possible commands.
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333_lttng_is_command() {
334 for command in $commands; do
335 if [ "$1" == "$command" ]; then
336 return 0
337 fi
338 done
339
340 return 1
341}
342
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343# Try to find a command in the current command line. Possible commands
344# are passed in $commands.
345#
346# This function takes an optional parameter that indicates the index
347# where to start the search in COMP_WORDS. If omitted, it defaults to 1.
348#
349# If a command is found, $command_found is filled with the name of the
350# command and $command_found_index is set to the index of the command in
351# $COMP_WORDS. If no command is found, $command_found is an empty string
352# and $command_found_index is set to -1.
353_lttng_find_command() {
354 start=${1:-1}
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355
356 # The text of the found command
357 command_found=""
358
359 # The index of the found command in COMP_WORDS
360 command_found_index=-1
361
ba28686d 362 for (( i = start ; i < ${#COMP_WORDS[@]} ; i++ )); do
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363 _lttng_is_command ${COMP_WORDS[$i]}
364 if [ $? -eq 0 ]; then
365 command_found=${COMP_WORDS[$i]}
366 command_found_index=$i
367 break
368 fi
fc256d99 369 done
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370}
371
372_lttng_cursor_is_after_command() {
373 [ -n "$command_found" ] && [ "$COMP_CWORD" -gt "$command_found_index" ]
374}
375
376_lttng() {
377 local cur prev commands command_found command_found_index
378
379 # Get the current and previous word
380 _get_comp_words_by_ref cur prev
381
382 # Get the valid first-level LTTng commands and options
383 commands=$(lttng --list-commands)
384 options=$(lttng --list-options)
385
386 _lttng_find_command
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387
388 # Check if the cursor is before or after the command keyword
ba28686d 389 if _lttng_cursor_is_after_command; then
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390 _lttng_after_command
391 else
392 _lttng_before_command
393 fi
394}
395
396complete -F _lttng lttng
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