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#!/bin/bash
# maintainer: when adding items update three places:
# usage(), show_all(), and show_item()
#
# note: report LINUXCNCVERSION=$EMC2VERSION (as does linuxcnc.in)
# Copyright: 2014
# Author: Dewey Garrett <dgarrett@panix.com>
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
function usage () {
cat <<EOF
Retrieve Linuxcnc Variables
Usage:
$(basename $0) [ varname | all ]
Varnames supported:
LINUXCNCVERSION
LINUXCNC_AUX_GLADEVCP
LINUXCNC_AUX_EXAMPLES
REALTIME
RTS
HALLIB_DIR
PYTHON
Option 'all' returns varname=value for all supported varnames
EOF
exit 1
}
function show_all () {
echo "LINUXCNCVERSION=@EMC2VERSION@
LINUXCNC_AUX_GLADEVCP=@LINUXCNC_AUX_GLADEVCP@
LINUXCNC_AUX_EXAMPLES=@LINUXCNC_AUX_EXAMPLES@
REALTIME=@REALTIME@
RTS=@RTS@
HALLIB_DIR=@HALLIB_DIR@
PYTHON=@PYTHON@"
}
function show_item () {
case $1 in
LINUXCNCVERSION) echo @EMC2VERSION@;;
LINUXCNC_AUX_GLADEVCP) echo @LINUXCNC_AUX_GLADEVCP@;;
LINUXCNC_AUX_EXAMPLES) echo @LINUXCNC_AUX_EXAMPLES@;;
REALTIME) echo @REALTIME@;;
RTS) echo @RTS@;;
HALLIB_DIR) echo @HALLIB_DIR@;;
PYTHON) echo @PYTHON@;;
all) show_all;;
*) echo UNKNOWN; exit 1;;
esac
}
case $# in
0) usage;;
1) show_item $1;;
*) usage;;
esac
exit 0
# Example shell usage to populate environment in a sourced script:
# for line in $(linuxcnc_var all) ; do
# name=${line%%=*}
# value=${line##*=}
# echo "name=$name value=$value"
# export "$name"="$value"
# done
# Example tcl usage:
# foreach line [exec linuxcnc_var all] {
# set l [split $line =]
# set name [lindex $l 0]
# set value [lindex $l 1]
# set V($name) $value
# }
# parray V
# Example python usage:
# import subprocess
# s = subprocess.Popen(['linuxcnc_var','all']
# ,stdout=subprocess.PIPE
# ,stderr=subprocess.PIPE
# p,e = s.communicate()
# v={}
# for line in p.split('\n'):
# if line == '': continue
# name = line.split('=')[0]
# value = line.split('=')[1]
# v[name] = value
# print(v)
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