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#!/bin/bash
# Copyright (c) 2005-2009 Gentoo Foundation.
# $Id$
# This file is part of the 'eselect' tools framework.
#
# eselect is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 2 of the License, or (at your option) any later
# version.
#
# eselect is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# eselect. If not, see <http://www.gnu.org/licenses/>.
# Where are our data?
ESELECT_DATA_PATH="%DATADIR%/eselect"
# Where are modules installed by default?
ESELECT_DEFAULT_MODULES_PATH="${ESELECT_DATA_PATH}/modules"
# Look in these places for modules
ESELECT_MODULES_PATH=( \
"${HOME}/.eselect/modules" \
"${ESELECT_DEFAULT_MODULES_PATH}" )
# Look in this place for libraries
ESELECT_CORE_PATH="${ESELECT_DATA_PATH}/libs"
# Look here for the default contents of a module
ESELECT_DEFAULT_ACTIONS="${ESELECT_CORE_PATH}/default.eselect"
# Our program name and version
ESELECT_VERSION="%VERSION%"
ESELECT_PROGRAM_NAME="eselect"
# Invocation information
ESELECT_BINARY_NAME="${0}"
ESELECT_KILL_TARGET="$$"
# Global options
ESELECT_KNOWN_OPTIONS="no-colour no-color help version"
ESELECT_OPTIONS=""
# Remove all alias definitions. Unset functions and variables that are
# known to cause trouble.
"unalias" -a
unset -f rm
unset CDPATH GLOBIGNORE
IFS=$' \t\n'
shopt -s extglob
shopt -s expand_aliases
# Load core functions
source "${ESELECT_CORE_PATH}/core.bash" || exit 255
# Load necessary functions for the main script
inherit manip output path-manipulation tests
# Sneaky trick to make die in subshells work. If you don't get
# it, don't ask...
trap 'echo "exiting" >&2; exit 250' 15
# ec_find_module foo
# Find and echo the filename of the foo module. If there's no foo module,
# die.
ec_find_module() {
local modname="$1" modpath="" modfile=""
[[ -z ${modname} ]] && die "Usage: ${FUNCNAME} <module>"
for modpath in "${ESELECT_MODULES_PATH[@]}" ; do
[[ -f ${modpath}/${modname}.eselect ]] && break
done
modfile="${modpath}/${modname}.eselect"
[[ -r ${modfile} ]] || die -q "Can't load module ${modname}"
echo ${modfile}
}
# ec_do_usage
# Display eselect usage
ec_do_usage() {
echo "Usage: eselect <global options> <module name> <module options>"
}
# ec_do_help
# Display eselect help
ec_do_help() {
ec_do_usage
echo
ec_do_list-options
echo
ec_do_list-modules
}
# ec_do_version
# Display eselect version
ec_do_version() {
echo "eselect ${ESELECT_VERSION}"
echo
echo "Copyright (c) 2005-2009 Gentoo Foundation."
echo "Distributed under the terms of the GNU General Public License v2."
}
# ec_do_list-options
# Display all recognized global options
ec_do_list-options() {
write_list_start "Global options:"
write_kv_list_entry "--no-color,--no-colour" "Disable coloured output"
}
# ec_do_list-modules
# Display all available eselect modules DEPRECATED
ec_do_list-modules() {
do_action modules list "$@"
}
### main code ###
# enable colour output and get width of terminal iff stdout is a tty
if [[ -t 1 ]]; then
colours
init_columns
else
nocolours
fi
# figure out what the action is. we need to know whether we're
# invoked as a something-config/something-update.
action=""
for suffix in config update{,r} tool manager reader ; do
if [[ ${0%%-${suffix}} != ${0} ]] ; then
action=$(basename "${0}" )
action=${action%%-${suffix}}
break
fi
done
unset suffix
if [[ -z ${action} ]] ; then
binname=$(basename "${0}" )
for prefix in config update{,r} manage 'read' ; do
if [[ ${binname##${prefix}-} != ${binname} ]] ; then
action=$(basename "${0}" )
action=${action##${prefix}-}
break
fi
done
unset binname prefix
fi
if [[ -z ${action} ]] && [[ -n ${1##--} ]] ; then
while [[ ${1##--} != ${1} ]] ; do
has ${1##--} ${ESELECT_KNOWN_OPTIONS} || \
die -q "Unknown option ${1}!"
case ${1##--} in
no-colour|no-color)
ESELECT_OPTIONS="${ESELECT_OPTIONS} NOCOLOUR"
nocolours
;;
help|version)
action=${1##--}
;;
esac
shift
done
if [[ -z ${action} ]]; then
action=${1}
shift
fi
fi
if [[ -n ${action} ]] ; then
if is_function "ec_do_${action}" ; then
ec_do_${action} "$@"
else
do_action "${action}" "$@"
fi
else
ec_do_help
fi
# Local Variables:
# sh-indentation: 4
# indent-tabs-mode: nil
# End:
# vim: set sw=4 et sts=4 tw=80 :
|
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