Add miniaudicle module

svn path=/trunk/extern/; revision=771

1 files changed, 143 insertions, 0 deletions

diff --git a/modules/miniaudicle.eselect b/modules/miniaudicle.eselect
new file mode 100644
index 0000000..256873a
--- /dev/null
+++ b/modules/miniaudicle.eselect
@@ -0,0 +1,143 @@
+# Copyright 1999-2009 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+DESCRIPTION="Manage /usr/bin/miniAudicle audio engine"
+MAINTAINER="cedk@gentoo.org"
+
+# find a list of miniAudicle symlink targets, best first
+find_targets() {
+	local f
+	for f in \
+			${ROOT}/usr/bin/miniAudicle-alsa \
+			${ROOT}/usr/bin/miniAudicle-jack \
+			${ROOT}/usr/bin/miniAudicle-oss \
+		; do
+		if [[ -f ${f} ]] ; then
+			echo $(basename ${f} )
+		fi
+	done
+}
+
+# try to remove the miniAudicle symlink
+remove_symlinks() {
+	rm -f "${ROOT}"/usr/bin/miniAudicle &>/dev/null
+}
+
+# set the miniAudicle symlink
+set_symlinks() {
+	local target="${1}" targets
+	if is_number "${target}" && [[ ${target} -ge 1 ]] ; then
+		targets=( $(find_targets ) )
+		target=${targets[$(( ${target} - 1 ))]}
+	fi
+	if [[ -f "${ROOT}/usr/bin/${target}" ]] ; then
+		remove_symlinks
+
+		# it's not okay if these fail
+		ln -s "${ROOT}/usr/bin/${target}" "${ROOT}/usr/bin/miniAudicle" || \
+			die "Couldn't set ${target} /usr/bin/miniAudicle symlink"
+	else
+		die -q  "Target \"${1}\" doesn't appear to be valid!"
+	fi
+}
+
+### show action ###
+
+describe_show() {
+	echo "Show the current miniAudicle audio engine"
+}
+
+do_show() {
+	[[ -z "${@}" ]] || die -q "Too many parameters"
+
+	write_list_start "Current miniAudicle audio engine:"
+	if [[ -L "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		write_kv_list_entry "$(basename $(canonicalise ${ROOT}/usr/bin/miniAudicle ) )" ""
+	elif [[ -e "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		write_kv_list_entry "(not a symlink)" ""
+	else
+		write_kv_list_entry "(unset)" ""
+	fi
+}
+
+### list action ###
+
+describe_list() {
+	echo "List available miniAudicle audio engines"
+}
+
+do_list() {
+	[[ -z "${@}" ]] || die -q "Too many parameters"
+
+	local i targets
+	targets=( $(find_targets ) )
+	write_list_start "Available miniAudicle audio engines:"
+	for (( i = 0 ; i < ${#targets[@]} ; i = i + 1 )) ; do
+		[[ ${targets[${i}]} == $(basename $(canonicalise ${ROOT}/usr/bin/miniAudicle- ) ) ]] && \
+			targets[${i}]=$(highlight_maker "${targets[${i}]}")
+	done
+	write_numbered_list -m "(none found)" "${targets[@]}"
+}
+
+### set action ###
+
+describe_set() {
+	echo "Set a new miniAudicle audio engines"
+}
+
+describe_set_options() {
+	echo "target : Target name or number (from 'list' action)"
+}
+
+describe_set_parameters() {
+	echo "<target>"
+}
+
+do_set() {
+	if [[ -z "${1}" ]] ; then
+		die -q "You didn't give me an audio engine"
+
+	elif [[ -n "${2}" ]] ; then
+		die -q "Too many parameters"
+
+	elif [[ -L "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		if ! remove_symlinks ; then
+			die -q "Can't remove existing provider"
+		elif ! set_symlinks "${1}" ; then
+			die -q "Can't set new provider"
+		fi
+
+	elif [[ -e "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		die -q "Sorry, ${ROOT}/usr/bin/miniAudicle confuses me"
+
+	else
+		set_symlinks "${1}" || die -q "Can't set a new audio engine"
+	fi
+}
+
+### update action ###
+
+describe_update() {
+	echo "Automatically update the audio engine"
+}
+
+describe_update_options() {
+	echo "--if-unset : Do not override existing audio engine"
+}
+
+do_update() {
+	[[ -z "${1}" ]] || ( [[ -z "${2}" ]] && [[ "${1}" == "--if-unset" ]] ) || \
+		die -q "Usage error"
+
+	if [[ -L "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		[[ ${1} == "--if-unset" ]] && return
+		remove_symlinks || die -q "Can't remove existing link"
+	fi
+	if [[ -e "${ROOT}/usr/bin/miniAudicle" ]] ; then
+		die -q "Can't set a new provider"
+	elif ! [[ -z $(find_targets ) ]] ; then
+		set_symlinks 1 || die -q "Can't set a new provider"
+	fi
+}
+
+# vim: set ft=eselect :