1 files changed, 73 insertions, 0 deletions
diff --git a/sys-kernel/genkernel/files/genkernel.bash b/sys-kernel/genkernel/files/genkernel.bash
new file mode 100644
index 0000000..ed6b1c1
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+++ b/sys-kernel/genkernel/files/genkernel.bash
@@ -0,0 +1,73 @@
+# genkernel (8) completion
+# Copyright 2006 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# Written by Aron Griffis <agriffis@gentoo.org>
+
+_genkernel()
+{
+    declare cur prev genkernel_help actions params
+    COMPREPLY=()
+    cur=${COMP_WORDS[COMP_CWORD]}
+    prev=${COMP_WORDS[COMP_CWORD-1]}
+
+    # extract initial list of params/actions from genkernel --help
+    genkernel_help=$(command genkernel --help)
+    actions=( $(<<<"$genkernel_help" sed -n \
+	'/^Available Actions:/,/^$/s/^[[:space:]]\+\([^[:space:]]\+\).*/\1/p') )
+    params=( $(<<<"$genkernel_help" egrep -oe '--[^[:space:]]{2,}') )
+
+    # attempt to complete the current parameter based on the list
+    COMPREPLY=($(compgen -W "${params[*]/=*/=} ${actions[*]}" -- "$cur"))
+
+    # if we don't have a rhs to complete
+    if [[ ${#COMPREPLY[@]} -gt 1 ]]; then
+	return
+    elif [[ ${#COMPREPLY[@]} -eq 0 && $cur != --*=* ]]; then
+	return
+    elif [[ ${#COMPREPLY[@]} -eq 1 && $COMPREPLY != --*= ]]; then
+	# using nospace completion, add an explicit space
+	COMPREPLY="${COMPREPLY} "
+	return
+    fi
+
+    # we have a unique lhs and need to complete the rhs
+    declare args lhs rhs
+    if [[ ${#COMPREPLY[@]} -eq 1 ]]; then
+	lhs=$COMPREPLY
+    else
+	lhs=${cur%%=*}=
+	rhs=${cur#*=}
+    fi
+
+    # genkernel's help gives clues as to what belongs on the rhs.
+    # extract the clue for the current parameter
+    args=" ${params[*]} "
+    args="${args##* $lhs}"
+    args="${args%% *}"
+
+    # generate a list of completions for the argument; this replaces args with
+    # an array of results
+    args=( $(case $args in
+	('<0-5>') compgen -W "$(echo {1..5})" -- "$rhs" ;;
+	('<outfile>'|'<file>') compgen -A file -o plusdirs -- "$rhs" ;;
+	('<dir>') compgen -A directory -S / -- "$rhs" ;;
+	('<tbz2>') compgen -G '*.tbz2' -G '*.tar.bz2' -o plusdirs -- "$rhs" ;;
+	(*) compgen -o bashdefault -- "$rhs" ;; # punt
+    esac) )
+
+    # we're using nospace completion to prevent spaces after paths that aren't
+    # "done" yet.  So do some hacking to the args to add spaces after
+    # non-directories.
+    declare slash=/
+    args=( "${args[@]/%/ }" )			# add space to all
+    args=( "${args[@]/%$slash /$slash}" )	# remove space from dirs
+
+    # recreate COMPREPLY
+    if [[ $cur == "$lhs"* ]]; then
+	COMPREPLY=( "${args[@]}" )
+    elif [[ ${#args[@]} -gt 0 ]]; then
+	COMPREPLY=( "${args[@]/#/$lhs}" )
+    fi
+}
+
+complete -o nospace -F _genkernel genkernel