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https://github.com/gnustep/tools-make.git
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f8a65a4266
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/tools/make/trunk@13977 72102866-910b-0410-8b05-ffd578937521
104 lines
3 KiB
Bash
104 lines
3 KiB
Bash
#! /bin/echo This file must be sourced inside (ba)sh using: .
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#
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# GNUstep-reset.sh
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#
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# Shell script resetting the GNUstep environment variables
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#
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# Copyright (C) 2002 Free Software Foundation, Inc.
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#
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# Author: Nicola Pero <n.pero@mi.flashnet.it>
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#
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# This file is part of the GNUstep Makefile Package.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# You should have received a copy of the GNU General Public
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# License along with this library; see the file COPYING.LIB.
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# If not, write to the Free Software Foundation,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# This file is used to reset your environment. This is needed if you
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# want to change LIBRARY_COMBO. You first reset your environment, then
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# set a new LIBRARY_COMBO variable, then source GNUstep.sh again.
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# This file resets variables in reverse order as they are set in the
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# GNUstep.sh file.
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# This function resets a path.
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# The only argument is the name of the path variable to be reset. All
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# paths beginning with GNUSTEP_SYSTEM_ROOT, GNUSTEP_LOCAL_ROOT,
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# GNUSTEP_NETWORK_ROOT and GNUSTEP_USER_ROOT are removed from the path
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# variable (yes, we are rather crude). All other paths are kept
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# unchanged.
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function reset_path
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{
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# Declare local variables
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local original_path tmp_IFS temp_path dir gnustep_dir found
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# NB: We need to use eval because we want to access a variable
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# whose name is another variable!
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original_path=$(eval echo \$$1)
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tmp_IFS="$IFS"
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IFS=:
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temp_path=
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# Loop on the paths
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for dir in $original_path; do
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# For each of them, keep it only if it's not beginning with
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# a path in GNUSTEP_PATHLIST as prefix
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found=no;
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for gnustep_dir in $GNUSTEP_PATHLIST; do
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if [ -n "$gnustep_dir" ]; then
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case "$dir" in
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$gnustep_dir*) found=yes; break;;
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*);;
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esac;
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fi;
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done;
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if [ "$found" = "no" ]; then
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if [ -z "$temp_path" ]; then
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temp_path="$dir"
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else
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temp_path="$temp_path:$dir"
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fi;
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fi
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done
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IFS="$tmp_IFS"
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# Not set the path variable.
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eval "$1=\$temp_path"
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# Export it only if non empty, otherwise remove it completely from
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# the shell environment.
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temp_path=`eval echo \$"$1"`
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if [ -z "$temp_path" ]; then
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eval "unset $1"
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else
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eval "export $1"
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fi
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}
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reset_path CLASSPATH
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reset_path GUILE_LOAD_PATH
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reset_path LD_LIBRARY_PATH
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reset_path PATH
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# Make sure we destroy the reset_path function after using it - we don't
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# want to pollute the environment with it.
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unset -f reset_path
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unset GNUSTEP_PATHLIST
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unset GNUSTEP_USER_ROOT
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unset GNUSTEP_HOST_OS
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unset GNUSTEP_HOST_VENDOR
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unset GNUSTEP_HOST_CPU
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unset GNUSTEP_HOST
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unset GNUSTEP_NETWORK_ROOT
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unset GNUSTEP_LOCAL_ROOT
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unset GNUSTEP_MAKEFILES
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unset GNUSTEP_FLATTENED
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unset GNUSTEP_SYSTEM_ROOT
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unset GNUSTEP_ROOT
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unset LIBRARY_COMBO
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