# perf bash and zsh completion
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# SPDX-License-Identifier: GPL-2.0
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# Taken from git.git's completion script.
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__my_reassemble_comp_words_by_ref()
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{
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local exclude i j first
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# Which word separators to exclude?
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exclude="${1//[^$COMP_WORDBREAKS]}"
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cword_=$COMP_CWORD
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if [ -z "$exclude" ]; then
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words_=("${COMP_WORDS[@]}")
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return
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fi
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# List of word completion separators has shrunk;
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# re-assemble words to complete.
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for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
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# Append each nonempty word consisting of just
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# word separator characters to the current word.
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first=t
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while
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[ $i -gt 0 ] &&
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[ -n "${COMP_WORDS[$i]}" ] &&
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# word consists of excluded word separators
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[ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
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do
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# Attach to the previous token,
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# unless the previous token is the command name.
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if [ $j -ge 2 ] && [ -n "$first" ]; then
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((j--))
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fi
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first=
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words_[$j]=${words_[j]}${COMP_WORDS[i]}
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if [ $i = $COMP_CWORD ]; then
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cword_=$j
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fi
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if (($i < ${#COMP_WORDS[@]} - 1)); then
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((i++))
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else
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# Done.
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return
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fi
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done
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words_[$j]=${words_[j]}${COMP_WORDS[i]}
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if [ $i = $COMP_CWORD ]; then
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cword_=$j
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fi
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done
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}
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# Define preload_get_comp_words_by_ref="false", if the function
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# __perf_get_comp_words_by_ref() is required instead.
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preload_get_comp_words_by_ref="true"
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if [ $preload_get_comp_words_by_ref = "true" ]; then
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type _get_comp_words_by_ref &>/dev/null ||
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preload_get_comp_words_by_ref="false"
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fi
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[ $preload_get_comp_words_by_ref = "true" ] ||
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__perf_get_comp_words_by_ref()
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{
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local exclude cur_ words_ cword_
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if [ "$1" = "-n" ]; then
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exclude=$2
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shift 2
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fi
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__my_reassemble_comp_words_by_ref "$exclude"
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cur_=${words_[cword_]}
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while [ $# -gt 0 ]; do
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case "$1" in
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cur)
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cur=$cur_
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;;
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prev)
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prev=${words_[$cword_-1]}
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;;
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words)
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words=("${words_[@]}")
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;;
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cword)
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cword=$cword_
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;;
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esac
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shift
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done
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}
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# Define preload__ltrim_colon_completions="false", if the function
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# __perf__ltrim_colon_completions() is required instead.
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preload__ltrim_colon_completions="true"
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if [ $preload__ltrim_colon_completions = "true" ]; then
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type __ltrim_colon_completions &>/dev/null ||
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preload__ltrim_colon_completions="false"
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fi
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[ $preload__ltrim_colon_completions = "true" ] ||
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__perf__ltrim_colon_completions()
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{
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if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
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# Remove colon-word prefix from COMPREPLY items
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local colon_word=${1%"${1##*:}"}
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local i=${#COMPREPLY[*]}
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while [[ $((--i)) -ge 0 ]]; do
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COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
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done
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fi
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}
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__perfcomp ()
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{
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COMPREPLY=( $( compgen -W "$1" -- "$2" ) )
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}
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__perfcomp_colon ()
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{
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__perfcomp "$1" "$2"
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if [ $preload__ltrim_colon_completions = "true" ]; then
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__ltrim_colon_completions $cur
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else
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__perf__ltrim_colon_completions $cur
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fi
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}
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__perf_prev_skip_opts ()
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{
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local i cmd_ cmds_
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let i=cword-1
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cmds_=$($cmd $1 --list-cmds)
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prev_skip_opts=()
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while [ $i -ge 0 ]; do
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if [[ ${words[i]} == $1 ]]; then
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return
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fi
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for cmd_ in $cmds_; do
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if [[ ${words[i]} == $cmd_ ]]; then
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prev_skip_opts=${words[i]}
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return
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fi
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done
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((i--))
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done
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}
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__perf_main ()
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{
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local cmd
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cmd=${words[0]}
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COMPREPLY=()
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# Skip options backward and find the last perf command
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__perf_prev_skip_opts
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# List perf subcommands or long options
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if [ -z $prev_skip_opts ]; then
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if [[ $cur == --* ]]; then
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cmds=$($cmd --list-opts)
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else
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cmds=$($cmd --list-cmds)
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fi
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__perfcomp "$cmds" "$cur"
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# List possible events for -e option
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elif [[ $prev == @("-e"|"--event") &&
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$prev_skip_opts == @(record|stat|top) ]]; then
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local cur1=${COMP_WORDS[COMP_CWORD]}
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local raw_evts=$($cmd list --raw-dump)
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local arr s tmp result
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if [[ "$cur1" == */* && ${cur1#*/} =~ ^[A-Z] ]]; then
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OLD_IFS="$IFS"
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IFS=" "
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arr=($raw_evts)
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IFS="$OLD_IFS"
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for s in ${arr[@]}
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do
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if [[ "$s" == *cpu/* ]]; then
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tmp=${s#*cpu/}
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result=$result" ""cpu/"${tmp^^}
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else
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result=$result" "$s
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fi
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done
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evts=${result}" "$(ls /sys/bus/event_source/devices/cpu/events)
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else
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evts=${raw_evts}" "$(ls /sys/bus/event_source/devices/cpu/events)
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fi
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if [[ "$cur1" == , ]]; then
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__perfcomp_colon "$evts" ""
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else
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__perfcomp_colon "$evts" "$cur1"
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fi
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else
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# List subcommands for perf commands
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if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|
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|data|help|script|test|timechart|trace) ]]; then
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subcmds=$($cmd $prev_skip_opts --list-cmds)
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__perfcomp_colon "$subcmds" "$cur"
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fi
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# List long option names
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if [[ $cur == --* ]]; then
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subcmd=$prev_skip_opts
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__perf_prev_skip_opts $subcmd
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subcmd=$subcmd" "$prev_skip_opts
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opts=$($cmd $subcmd --list-opts)
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__perfcomp "$opts" "$cur"
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fi
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fi
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}
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if [[ -n ${ZSH_VERSION-} ]]; then
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autoload -U +X compinit && compinit
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__perfcomp ()
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{
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emulate -L zsh
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local c IFS=$' \t\n'
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local -a array
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for c in ${=1}; do
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case $c in
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--*=*|*.) ;;
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*) c="$c " ;;
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esac
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array[${#array[@]}+1]="$c"
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done
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compset -P '*[=:]'
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compadd -Q -S '' -a -- array && _ret=0
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}
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__perfcomp_colon ()
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{
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emulate -L zsh
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local cur_="${2-$cur}"
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local c IFS=$' \t\n'
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local -a array
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if [[ "$cur_" == *:* ]]; then
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local colon_word=${cur_%"${cur_##*:}"}
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fi
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for c in ${=1}; do
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case $c in
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--*=*|*.) ;;
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*) c="$c " ;;
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esac
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array[$#array+1]=${c#"$colon_word"}
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done
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compset -P '*[=:]'
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compadd -Q -S '' -a -- array && _ret=0
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}
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_perf ()
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{
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local _ret=1 cur cword prev
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cur=${words[CURRENT]}
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prev=${words[CURRENT-1]}
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let cword=CURRENT-1
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emulate ksh -c __perf_main
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let _ret && _default && _ret=0
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return _ret
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}
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compdef _perf perf
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return
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fi
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type perf &>/dev/null &&
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_perf()
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{
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if [[ "$COMP_WORDBREAKS" != *,* ]]; then
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COMP_WORDBREAKS="${COMP_WORDBREAKS},"
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export COMP_WORDBREAKS
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fi
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if [[ "$COMP_WORDBREAKS" == *:* ]]; then
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COMP_WORDBREAKS="${COMP_WORDBREAKS/:/}"
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export COMP_WORDBREAKS
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fi
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local cur words cword prev
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if [ $preload_get_comp_words_by_ref = "true" ]; then
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_get_comp_words_by_ref -n =:, cur words cword prev
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else
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__perf_get_comp_words_by_ref -n =:, cur words cword prev
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fi
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__perf_main
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} &&
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complete -o bashdefault -o default -o nospace -F _perf perf 2>/dev/null \
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|| complete -o default -o nospace -F _perf perf
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