2012-11-08 01:44:18 +01:00
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# genkernel (8) completion
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2012-11-15 17:22:58 +01:00
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# Copyright 2006-2012 Gentoo Foundation
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2012-11-08 01:44:18 +01:00
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# Distributed under the terms of the GNU General Public License v2
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# Written by Aron Griffis <agriffis@gentoo.org>
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_genkernel()
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{
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declare cur prev genkernel_help actions params
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COMPREPLY=()
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cur=${COMP_WORDS[COMP_CWORD]}
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prev=${COMP_WORDS[COMP_CWORD-1]}
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# extract initial list of params/actions from genkernel --help
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genkernel_help=$(command genkernel --help)
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actions=( $(<<<"$genkernel_help" sed -n \
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'/^Available Actions:/,/^$/s/^[[:space:]]\+\([^[:space:]]\+\).*/\1/p') )
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params=( $(<<<"$genkernel_help" egrep -oe '--[^[:space:]]{2,}') )
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# attempt to complete the current parameter based on the list
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COMPREPLY=($(compgen -W "${params[*]/=*/=} ${actions[*]}" -- "$cur"))
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# if we don't have a rhs to complete
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if [[ ${#COMPREPLY[@]} -gt 1 ]]; then
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return
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elif [[ ${#COMPREPLY[@]} -eq 0 && $cur != --*=* ]]; then
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return
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elif [[ ${#COMPREPLY[@]} -eq 1 && $COMPREPLY != --*= ]]; then
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# using nospace completion, add an explicit space
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COMPREPLY="${COMPREPLY} "
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return
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fi
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# we have a unique lhs and need to complete the rhs
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declare args lhs rhs
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if [[ ${#COMPREPLY[@]} -eq 1 ]]; then
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lhs=$COMPREPLY
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else
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lhs=${cur%%=*}=
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rhs=${cur#*=}
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fi
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# genkernel's help gives clues as to what belongs on the rhs.
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# extract the clue for the current parameter
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args=" ${params[*]} "
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args="${args##* $lhs}"
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args="${args%% *}"
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# generate a list of completions for the argument; this replaces args with
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# an array of results
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args=( $(case $args in
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('<0-5>') compgen -W "$(echo {1..5})" -- "$rhs" ;;
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('<outfile>'|'<file>') compgen -A file -o plusdirs -- "$rhs" ;;
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('<dir>') compgen -A directory -S / -- "$rhs" ;;
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('<tbz2>') compgen -G '*.tbz2' -G '*.tar.bz2' -o plusdirs -- "$rhs" ;;
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(*) compgen -o bashdefault -- "$rhs" ;; # punt
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esac) )
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# we're using nospace completion to prevent spaces after paths that aren't
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# "done" yet. So do some hacking to the args to add spaces after
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# non-directories.
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declare slash=/
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args=( "${args[@]/%/ }" ) # add space to all
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args=( "${args[@]/%$slash /$slash}" ) # remove space from dirs
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# recreate COMPREPLY
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if [[ $cur == "$lhs"* ]]; then
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COMPREPLY=( "${args[@]}" )
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elif [[ ${#args[@]} -gt 0 ]]; then
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COMPREPLY=( "${args[@]/#/$lhs}" )
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fi
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}
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complete -o nospace -F _genkernel genkernel
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