Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# perf bash and zsh completion
2# SPDX-License-Identifier: GPL-2.0
3
4# Taken from git.git's completion script.
5__my_reassemble_comp_words_by_ref()
6{
7 local exclude i j first
8 # Which word separators to exclude?
9 exclude="${1//[^$COMP_WORDBREAKS]}"
10 cword_=$COMP_CWORD
11 if [ -z "$exclude" ]; then
12 words_=("${COMP_WORDS[@]}")
13 return
14 fi
15 # List of word completion separators has shrunk;
16 # re-assemble words to complete.
17 for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
18 # Append each nonempty word consisting of just
19 # word separator characters to the current word.
20 first=t
21 while
22 [ $i -gt 0 ] &&
23 [ -n "${COMP_WORDS[$i]}" ] &&
24 # word consists of excluded word separators
25 [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
26 do
27 # Attach to the previous token,
28 # unless the previous token is the command name.
29 if [ $j -ge 2 ] && [ -n "$first" ]; then
30 ((j--))
31 fi
32 first=
33 words_[$j]=${words_[j]}${COMP_WORDS[i]}
34 if [ $i = $COMP_CWORD ]; then
35 cword_=$j
36 fi
37 if (($i < ${#COMP_WORDS[@]} - 1)); then
38 ((i++))
39 else
40 # Done.
41 return
42 fi
43 done
44 words_[$j]=${words_[j]}${COMP_WORDS[i]}
45 if [ $i = $COMP_CWORD ]; then
46 cword_=$j
47 fi
48 done
49}
50
51# Define preload_get_comp_words_by_ref="false", if the function
52# __perf_get_comp_words_by_ref() is required instead.
53preload_get_comp_words_by_ref="true"
54
55if [ $preload_get_comp_words_by_ref = "true" ]; then
56 type _get_comp_words_by_ref &>/dev/null ||
57 preload_get_comp_words_by_ref="false"
58fi
59[ $preload_get_comp_words_by_ref = "true" ] ||
60__perf_get_comp_words_by_ref()
61{
62 local exclude cur_ words_ cword_
63 if [ "$1" = "-n" ]; then
64 exclude=$2
65 shift 2
66 fi
67 __my_reassemble_comp_words_by_ref "$exclude"
68 cur_=${words_[cword_]}
69 while [ $# -gt 0 ]; do
70 case "$1" in
71 cur)
72 cur=$cur_
73 ;;
74 prev)
75 prev=${words_[$cword_-1]}
76 ;;
77 words)
78 words=("${words_[@]}")
79 ;;
80 cword)
81 cword=$cword_
82 ;;
83 esac
84 shift
85 done
86}
87
88# Define preload__ltrim_colon_completions="false", if the function
89# __perf__ltrim_colon_completions() is required instead.
90preload__ltrim_colon_completions="true"
91
92if [ $preload__ltrim_colon_completions = "true" ]; then
93 type __ltrim_colon_completions &>/dev/null ||
94 preload__ltrim_colon_completions="false"
95fi
96[ $preload__ltrim_colon_completions = "true" ] ||
97__perf__ltrim_colon_completions()
98{
99 if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
100 # Remove colon-word prefix from COMPREPLY items
101 local colon_word=${1%"${1##*:}"}
102 local i=${#COMPREPLY[*]}
103 while [[ $((--i)) -ge 0 ]]; do
104 COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
105 done
106 fi
107}
108
109__perfcomp ()
110{
111 COMPREPLY=( $( compgen -W "$1" -- "$2" ) )
112}
113
114__perfcomp_colon ()
115{
116 __perfcomp "$1" "$2"
117 if [ $preload__ltrim_colon_completions = "true" ]; then
118 __ltrim_colon_completions $cur
119 else
120 __perf__ltrim_colon_completions $cur
121 fi
122}
123
124__perf_prev_skip_opts ()
125{
126 local i cmd_ cmds_
127
128 let i=cword-1
129 cmds_=$($cmd $1 --list-cmds)
130 prev_skip_opts=()
131 while [ $i -ge 0 ]; do
132 if [[ ${words[i]} == $1 ]]; then
133 return
134 fi
135 for cmd_ in $cmds_; do
136 if [[ ${words[i]} == $cmd_ ]]; then
137 prev_skip_opts=${words[i]}
138 return
139 fi
140 done
141 ((i--))
142 done
143}
144
145__perf_main ()
146{
147 local cmd
148
149 cmd=${words[0]}
150 COMPREPLY=()
151
152 # Skip options backward and find the last perf command
153 __perf_prev_skip_opts
154 # List perf subcommands or long options
155 if [ -z $prev_skip_opts ]; then
156 if [[ $cur == --* ]]; then
157 cmds=$($cmd --list-opts)
158 else
159 cmds=$($cmd --list-cmds)
160 fi
161 __perfcomp "$cmds" "$cur"
162 # List possible events for -e option
163 elif [[ $prev == @("-e"|"--event") &&
164 $prev_skip_opts == @(record|stat|top) ]]; then
165
166 local cur1=${COMP_WORDS[COMP_CWORD]}
167 local raw_evts=$($cmd list --raw-dump)
168 local arr s tmp result cpu_evts
169
170 # aarch64 doesn't have /sys/bus/event_source/devices/cpu/events
171 if [[ `uname -m` != aarch64 ]]; then
172 cpu_evts=$(ls /sys/bus/event_source/devices/cpu/events)
173 fi
174
175 if [[ "$cur1" == */* && ${cur1#*/} =~ ^[A-Z] ]]; then
176 OLD_IFS="$IFS"
177 IFS=" "
178 arr=($raw_evts)
179 IFS="$OLD_IFS"
180
181 for s in ${arr[@]}
182 do
183 if [[ "$s" == *cpu/* ]]; then
184 tmp=${s#*cpu/}
185 result=$result" ""cpu/"${tmp^^}
186 else
187 result=$result" "$s
188 fi
189 done
190
191 evts=${result}" "${cpu_evts}
192 else
193 evts=${raw_evts}" "${cpu_evts}
194 fi
195
196 if [[ "$cur1" == , ]]; then
197 __perfcomp_colon "$evts" ""
198 else
199 __perfcomp_colon "$evts" "$cur1"
200 fi
201 else
202 # List subcommands for perf commands
203 if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|
204 |data|help|script|test|timechart|trace) ]]; then
205 subcmds=$($cmd $prev_skip_opts --list-cmds)
206 __perfcomp_colon "$subcmds" "$cur"
207 fi
208 # List long option names
209 if [[ $cur == --* ]]; then
210 subcmd=$prev_skip_opts
211 __perf_prev_skip_opts $subcmd
212 subcmd=$subcmd" "$prev_skip_opts
213 opts=$($cmd $subcmd --list-opts)
214 __perfcomp "$opts" "$cur"
215 fi
216 fi
217}
218
219if [[ -n ${ZSH_VERSION-} ]]; then
220 autoload -U +X compinit && compinit
221
222 __perfcomp ()
223 {
224 emulate -L zsh
225
226 local c IFS=$' \t\n'
227 local -a array
228
229 for c in ${=1}; do
230 case $c in
231 --*=*|*.) ;;
232 *) c="$c " ;;
233 esac
234 array[${#array[@]}+1]="$c"
235 done
236
237 compset -P '*[=:]'
238 compadd -Q -S '' -a -- array && _ret=0
239 }
240
241 __perfcomp_colon ()
242 {
243 emulate -L zsh
244
245 local cur_="${2-$cur}"
246 local c IFS=$' \t\n'
247 local -a array
248
249 if [[ "$cur_" == *:* ]]; then
250 local colon_word=${cur_%"${cur_##*:}"}
251 fi
252
253 for c in ${=1}; do
254 case $c in
255 --*=*|*.) ;;
256 *) c="$c " ;;
257 esac
258 array[$#array+1]=${c#"$colon_word"}
259 done
260
261 compset -P '*[=:]'
262 compadd -Q -S '' -a -- array && _ret=0
263 }
264
265 _perf ()
266 {
267 local _ret=1 cur cword prev
268 cur=${words[CURRENT]}
269 prev=${words[CURRENT-1]}
270 let cword=CURRENT-1
271 emulate ksh -c __perf_main
272 let _ret && _default && _ret=0
273 return _ret
274 }
275
276 compdef _perf perf
277 return
278fi
279
280type perf &>/dev/null &&
281_perf()
282{
283 if [[ "$COMP_WORDBREAKS" != *,* ]]; then
284 COMP_WORDBREAKS="${COMP_WORDBREAKS},"
285 export COMP_WORDBREAKS
286 fi
287
288 if [[ "$COMP_WORDBREAKS" == *:* ]]; then
289 COMP_WORDBREAKS="${COMP_WORDBREAKS/:/}"
290 export COMP_WORDBREAKS
291 fi
292
293 local cur words cword prev
294 if [ $preload_get_comp_words_by_ref = "true" ]; then
295 _get_comp_words_by_ref -n =:, cur words cword prev
296 else
297 __perf_get_comp_words_by_ref -n =:, cur words cword prev
298 fi
299 __perf_main
300} &&
301
302complete -o bashdefault -o default -o nospace -F _perf perf 2>/dev/null \
303 || complete -o default -o nospace -F _perf perf