tools/perf/bash_completion

   1 # perf completion
   2
   3 # Taken from git.git's completion script.
   4 __my_reassemble_comp_words_by_ref()
   5 {
   6         local exclude i j first
   7         # Which word separators to exclude?
   8         exclude="${1//[^$COMP_WORDBREAKS]}"
   9         cword_=$COMP_CWORD
  10         if [ -z "$exclude" ]; then
  11                 words_=("${COMP_WORDS[@]}")
  12                 return
  13         fi
  14         # List of word completion separators has shrunk;
  15         # re-assemble words to complete.
  16         for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
  17                 # Append each nonempty word consisting of just
  18                 # word separator characters to the current word.
  19                 first=t
  20                 while
  21                         [ $i -gt 0 ] &&
  22                         [ -n "${COMP_WORDS[$i]}" ] &&
  23                         # word consists of excluded word separators
  24                         [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
  25                 do
  26                         # Attach to the previous token,
  27                         # unless the previous token is the command name.
  28                         if [ $j -ge 2 ] && [ -n "$first" ]; then
  29                                 ((j--))
  30                         fi
  31                         first=
  32                         words_[$j]=${words_[j]}${COMP_WORDS[i]}
  33                         if [ $i = $COMP_CWORD ]; then
  34                                 cword_=$j
  35                         fi
  36                         if (($i < ${#COMP_WORDS[@]} - 1)); then
  37                                 ((i++))
  38                         else
  39                                 # Done.
  40                                 return
  41                         fi
  42                 done
  43                 words_[$j]=${words_[j]}${COMP_WORDS[i]}
  44                 if [ $i = $COMP_CWORD ]; then
  45                         cword_=$j
  46                 fi
  47         done
  48 }
  49
  50 type _get_comp_words_by_ref &>/dev/null ||
  51 _get_comp_words_by_ref()
  52 {
  53         local exclude cur_ words_ cword_
  54         if [ "$1" = "-n" ]; then
  55                 exclude=$2
  56                 shift 2
  57         fi
  58         __my_reassemble_comp_words_by_ref "$exclude"
  59         cur_=${words_[cword_]}
  60         while [ $# -gt 0 ]; do
  61                 case "$1" in
  62                 cur)
  63                         cur=$cur_
  64                         ;;
  65                 prev)
  66                         prev=${words_[$cword_-1]}
  67                         ;;
  68                 words)
  69                         words=("${words_[@]}")
  70                         ;;
  71                 cword)
  72                         cword=$cword_
  73                         ;;
  74                 esac
  75                 shift
  76         done
  77 }
  78
  79 type __ltrim_colon_completions &>/dev/null ||
  80 __ltrim_colon_completions()
  81 {
  82         if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
  83                 # Remove colon-word prefix from COMPREPLY items
  84                 local colon_word=${1%"${1##*:}"}
  85                 local i=${#COMPREPLY[*]}
  86                 while [[ $((--i)) -ge 0 ]]; do
  87                         COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
  88                 done
  89         fi
  90 }
  91
  92 type perf &>/dev/null &&
  93 _perf()
  94 {
  95         local cur words cword prev cmd
  96
  97         COMPREPLY=()
  98         _get_comp_words_by_ref -n =: cur words cword prev
  99
 100         cmd=${words[0]}
 101
 102         # List perf subcommands or long options
 103         if [ $cword -eq 1 ]; then
 104                 if [[ $cur == --* ]]; then
 105                         COMPREPLY=( $( compgen -W '--help --version \
 106                         --exec-path --html-path --paginate --no-pager \
 107                         --perf-dir --work-tree --debugfs-dir' -- "$cur" ) )
 108                 else
 109                         cmds=$($cmd --list-cmds)
 110                         COMPREPLY=( $( compgen -W '$cmds' -- "$cur" ) )
 111                 fi
 112         # List possible events for -e option
 113         elif [[ $prev == "-e" && "${words[1]}" == @(record|stat|top) ]]; then
 114                 evts=$($cmd list --raw-dump)
 115                 COMPREPLY=( $( compgen -W '$evts' -- "$cur" ) )
 116                 __ltrim_colon_completions $cur
 117         # List long option names
 118         elif [[ $cur == --* ]];  then
 119                 subcmd=${words[1]}
 120                 opts=$($cmd $subcmd --list-opts)
 121                 COMPREPLY=( $( compgen -W '$opts' -- "$cur" ) )
 122         fi
 123 } &&
 124
 125 complete -o bashdefault -o default -o nospace -F _perf perf 2>/dev/null \
 126         || complete -o default -o nospace -F _perf perf