diff options
Diffstat (limited to 'tools/perf/perf-completion.sh')
| -rw-r--r-- | tools/perf/perf-completion.sh | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh new file mode 100644 index 000000000..3ba80b235 --- /dev/null +++ b/tools/perf/perf-completion.sh @@ -0,0 +1,258 @@ +# perf bash and zsh completion + +# Taken from git.git's completion script. +__my_reassemble_comp_words_by_ref() +{ + local exclude i j first + # Which word separators to exclude? + exclude="${1//[^$COMP_WORDBREAKS]}" + cword_=$COMP_CWORD + if [ -z "$exclude" ]; then + words_=("${COMP_WORDS[@]}") + return + fi + # List of word completion separators has shrunk; + # re-assemble words to complete. + for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do + # Append each nonempty word consisting of just + # word separator characters to the current word. + first=t + while + [ $i -gt 0 ] && + [ -n "${COMP_WORDS[$i]}" ] && + # word consists of excluded word separators + [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ] + do + # Attach to the previous token, + # unless the previous token is the command name. + if [ $j -ge 2 ] && [ -n "$first" ]; then + ((j--)) + fi + first= + words_[$j]=${words_[j]}${COMP_WORDS[i]} + if [ $i = $COMP_CWORD ]; then + cword_=$j + fi + if (($i < ${#COMP_WORDS[@]} - 1)); then + ((i++)) + else + # Done. + return + fi + done + words_[$j]=${words_[j]}${COMP_WORDS[i]} + if [ $i = $COMP_CWORD ]; then + cword_=$j + fi + done +} + +# Define preload_get_comp_words_by_ref="false", if the function +# __perf_get_comp_words_by_ref() is required instead. +preload_get_comp_words_by_ref="true" + +if [ $preload_get_comp_words_by_ref = "true" ]; then + type _get_comp_words_by_ref &>/dev/null || + preload_get_comp_words_by_ref="false" +fi +[ $preload_get_comp_words_by_ref = "true" ] || +__perf_get_comp_words_by_ref() +{ + local exclude cur_ words_ cword_ + if [ "$1" = "-n" ]; then + exclude=$2 + shift 2 + fi + __my_reassemble_comp_words_by_ref "$exclude" + cur_=${words_[cword_]} + while [ $# -gt 0 ]; do + case "$1" in + cur) + cur=$cur_ + ;; + prev) + prev=${words_[$cword_-1]} + ;; + words) + words=("${words_[@]}") + ;; + cword) + cword=$cword_ + ;; + esac + shift + done +} + +# Define preload__ltrim_colon_completions="false", if the function +# __perf__ltrim_colon_completions() is required instead. +preload__ltrim_colon_completions="true" + +if [ $preload__ltrim_colon_completions = "true" ]; then + type __ltrim_colon_completions &>/dev/null || + preload__ltrim_colon_completions="false" +fi +[ $preload__ltrim_colon_completions = "true" ] || +__perf__ltrim_colon_completions() +{ + if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then + # Remove colon-word prefix from COMPREPLY items + local colon_word=${1%"${1##*:}"} + local i=${#COMPREPLY[*]} + while [[ $((--i)) -ge 0 ]]; do + COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"} + done + fi +} + +__perfcomp () +{ + COMPREPLY=( $( compgen -W "$1" -- "$2" ) ) +} + +__perfcomp_colon () +{ + __perfcomp "$1" "$2" + if [ $preload__ltrim_colon_completions = "true" ]; then + __ltrim_colon_completions $cur + else + __perf__ltrim_colon_completions $cur + fi +} + +__perf_prev_skip_opts () +{ + local i cmd_ cmds_ + + let i=cword-1 + cmds_=$($cmd $1 --list-cmds) + prev_skip_opts=() + while [ $i -ge 0 ]; do + if [[ ${words[i]} == $1 ]]; then + return + fi + for cmd_ in $cmds_; do + if [[ ${words[i]} == $cmd_ ]]; then + prev_skip_opts=${words[i]} + return + fi + done + ((i--)) + done +} + +__perf_main () +{ + local cmd + + cmd=${words[0]} + COMPREPLY=() + + # Skip options backward and find the last perf command + __perf_prev_skip_opts + # List perf subcommands or long options + if [ -z $prev_skip_opts ]; then + if [[ $cur == --* ]]; then + cmds=$($cmd --list-opts) + else + cmds=$($cmd --list-cmds) + fi + __perfcomp "$cmds" "$cur" + # List possible events for -e option + elif [[ $prev == @("-e"|"--event") && + $prev_skip_opts == @(record|stat|top) ]]; then + evts=$($cmd list --raw-dump) + __perfcomp_colon "$evts" "$cur" + else + # List subcommands for perf commands + if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched| + |data|help|script|test|timechart|trace) ]]; then + subcmds=$($cmd $prev_skip_opts --list-cmds) + __perfcomp_colon "$subcmds" "$cur" + fi + # List long option names + if [[ $cur == --* ]]; then + subcmd=$prev_skip_opts + __perf_prev_skip_opts $subcmd + subcmd=$subcmd" "$prev_skip_opts + opts=$($cmd $subcmd --list-opts) + __perfcomp "$opts" "$cur" + fi + fi +} + +if [[ -n ${ZSH_VERSION-} ]]; then + autoload -U +X compinit && compinit + + __perfcomp () + { + emulate -L zsh + + local c IFS=$' \t\n' + local -a array + + for c in ${=1}; do + case $c in + --*=*|*.) ;; + *) c="$c " ;; + esac + array[${#array[@]}+1]="$c" + done + + compset -P '*[=:]' + compadd -Q -S '' -a -- array && _ret=0 + } + + __perfcomp_colon () + { + emulate -L zsh + + local cur_="${2-$cur}" + local c IFS=$' \t\n' + local -a array + + if [[ "$cur_" == *:* ]]; then + local colon_word=${cur_%"${cur_##*:}"} + fi + + for c in ${=1}; do + case $c in + --*=*|*.) ;; + *) c="$c " ;; + esac + array[$#array+1]=${c#"$colon_word"} + done + + compset -P '*[=:]' + compadd -Q -S '' -a -- array && _ret=0 + } + + _perf () + { + local _ret=1 cur cword prev + cur=${words[CURRENT]} + prev=${words[CURRENT-1]} + let cword=CURRENT-1 + emulate ksh -c __perf_main + let _ret && _default && _ret=0 + return _ret + } + + compdef _perf perf + return +fi + +type perf &>/dev/null && +_perf() +{ + local cur words cword prev + if [ $preload_get_comp_words_by_ref = "true" ]; then + _get_comp_words_by_ref -n =: cur words cword prev + else + __perf_get_comp_words_by_ref -n =: cur words cword prev + fi + __perf_main +} && + +complete -o bashdefault -o default -o nospace -F _perf perf 2>/dev/null \ + || complete -o default -o nospace -F _perf perf |