8b44ccfa6a
1) HALLIB_DIR: new directory for system-wide hal files (*.hal,*.tcl and
supporting files).
Locations:
RIP: HALLIB = lib/hallib/
DEB: HALLIB = /usr/share/linuxcnc/hallib/
2) HALLIB_PATH: search path for locating halfiles:
HALLIB_PATH = .:HALLIB_DIR (e.g., ini directory then system library)
3) LIB: prefix to explicitly specify a system library halfile (with
no search of the ini file directory)
[HAL]
...
HALFILE = LIB:filename.[hal|tcl]
...
This patch addresses a general issue of the multiple copies (or links) of
halfiles throughout the config tree and makes it simple to explicitly specify a
library halfile so that a user does not need to copy these files when modifying
a configuration. For example, one can instruct a user with:
'Include the line HALFILE = LIB:xhc-hb04.tcl in the [HAL] stanza of
your ini file'
Signed-off-by: Dewey Garrett <dgarrett@panix.com>
95 lines
2.4 KiB
Bash
95 lines
2.4 KiB
Bash
#!/bin/bash
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# maintainer: when adding items update three places:
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# usage(), show_all(), and show_item()
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#
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# note: report LINUXCNVERSION=$EMC2VERSION (as does linuxcnc.in)
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# Copyright: 2014
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# Author: Dewey Garrett <dgarrett@panix.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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function usage () {
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cat <<EOF
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Retrieve Linuxcnc Variables
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Usage:
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$(basename $0) [ varname | all ]
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Varnames supported:
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LINUXCNCVERSION
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REALTIME
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RTS
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HALLIB_DIR
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Option 'all' returns varname=value for all supported varnames
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EOF
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exit 1
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}
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function show_all () {
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echo "LINUXCNCVERSION=@EMC2VERSION@
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REALTIME=@REALTIME@
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RTS=@RTS@
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HALLIB_DIR=@HALLIB_DIR@"
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}
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function show_item () {
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case $1 in
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LINUXCNCVERSION) echo @EMC2VERSION@;;
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REALTIME) echo @REALTIME@;;
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RTS) echo @RTS@;;
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HALLIB_DIR) echo @HALLIB_DIR@;;
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all) show_all;;
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*) echo UNKNOWN; exit 1;;
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esac
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}
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case $# in
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0) usage;;
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1) show_item $1;;
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*) usage;;
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esac
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exit 0
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# Example shell usage to populate environment in a sourced script:
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# for line in $(linuxcnc_var all) ; do
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# name=${line%%=*}
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# value=${line##*=}
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# echo "name=$name value=$value"
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# export "$name"="$value"
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# done
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# Example tcl usage:
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# foreach line [exec linuxcnc_var all] {
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# set l [split $line =]
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# set name [lindex $l 0]
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# set value [lindex $l 1]
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# set V($name) $value
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# }
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# parray V
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# Example python usage:
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# import subprocess
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# s = subprocess.Popen(['linuxcnc_var','all']
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# ,stdout=subprocess.PIPE
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# ,stderr=subprocess.PIPE
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# p,e = s.communicate()
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# v={}
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# for line in p.split('\n'):
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# if line == '': continue
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# name = line.split('=')[0]
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# value = line.split('=')[1]
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# v[name] = value
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# print(v)
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