mirror of
https://github.com/gnustep/tools-make.git
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2f1c36af26
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/tools/make/trunk@27167 72102866-910b-0410-8b05-ffd578937521
105 lines
3.4 KiB
Bash
Executable file
105 lines
3.4 KiB
Bash
Executable file
#! /bin/sh
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#
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# print_unique_path_list.sh
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#
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# Script for creating unique lists of paths
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#
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# Copyright (C) 2007 Free Software Foundation, Inc.
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#
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# Author: Nicola Pero <nicola.pero@meta-innovation.com
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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 3
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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.
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# If not, write to the Free Software Foundation,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# If we knew the shell is bash, we could easily put this code into a
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# function. (FIXME: check if there is a portable way of doing that)
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# This is a shell script that takes 5 arguments (a list of 4 paths,
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# followed by "yes" if it needs to automatically convert the paths
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# from Win32 to Unix style), and prints the 4 paths separated by ':',
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# removing duplicates.
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# The order of the paths printed is the REVERSE of the order in which
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# they were supplied, this is so that code which iterates through them
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# prepending them to a PATH will leave them in the correct order in
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# that path.
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# GNUSTEP_MAKEFILES needs to be defined when you execute this script.
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if [ ! $# -eq 5 ]; then
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echo "Usage: $0 path1 path2 path3 path4 windowsToUnixConversion"
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echo " prints out path1:path2:path3:path4 removing duplicates"
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echo " and converting paths from windows to unix if windowsToUnixConversion"
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echo " is 'yes'"
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exit 1
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fi
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GS_MAKE_RESULT=""
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if [ "$5" = "yes" ]; then
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GS_MAKE_PATH_1=`$GNUSTEP_MAKEFILES/fixpath.sh -u "$1"`
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GS_MAKE_PATH_2=`$GNUSTEP_MAKEFILES/fixpath.sh -u "$2"`
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GS_MAKE_PATH_3=`$GNUSTEP_MAKEFILES/fixpath.sh -u "$3"`
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GS_MAKE_PATH_4=`$GNUSTEP_MAKEFILES/fixpath.sh -u "$4"`
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else
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GS_MAKE_PATH_1="$1"
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GS_MAKE_PATH_2="$2"
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GS_MAKE_PATH_3="$3"
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GS_MAKE_PATH_4="$4"
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fi
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# Now we basically want to build
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# GS_MAKE_RESULT="$GS_MAKE_PATH_1:$GS_MAKE_PATH_2:$GS_MAKE_PATH_3:$GS_MAKE_PATH_4"
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# but we want to remove duplicates.
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# Start with $GS_MAKE_PATH_1:$GS_MAKE_PATH_2 - or $GS_MAKE_PATH_1 if they are the same
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if [ "$GS_MAKE_PATH_2" != "$GS_MAKE_PATH_1" ]; then
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GS_MAKE_RESULT="$GS_MAKE_PATH_1:$GS_MAKE_PATH_2"
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else
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GS_MAKE_RESULT="$GS_MAKE_PATH_1"
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fi
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# Now append $GS_MAKE_PATH_3 but only if different from what already there
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if [ "$GS_MAKE_PATH_3" != "$GS_MAKE_PATH_1" ]; then
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if [ "$GS_MAKE_PATH_3" != "$GS_MAKE_PATH_2" ]; then
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GS_MAKE_RESULT="$GS_MAKE_RESULT:$GS_MAKE_PATH_3"
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fi
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fi
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# Now append $GS_MAKE_PATH_4 but only if different from what already there
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if [ "$GS_MAKE_PATH_4" != "$GS_MAKE_PATH_1" ]; then
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if [ "$GS_MAKE_PATH_4" != "$GS_MAKE_PATH_2" ]; then
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if [ "$GS_MAKE_PATH_4" != "$GS_MAKE_PATH_3" ]; then
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GS_MAKE_RESULT="$GS_MAKE_RESULT:$GS_MAKE_PATH_4"
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fi
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fi
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fi
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# Now reverse the order of the path fragments so that the calling code
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# can iterate through them and prepend each in turn to another path.
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old_IFS="$IFS"
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IFS=:
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reversed=""
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for dir in $GS_MAKE_RESULT; do
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path_fragment="$dir"
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if [ -z "$reversed" ]; then
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reversed="$path_fragment"
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else
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reversed="$path_fragment:$reversed"
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fi
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done
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GS_MAKE_RESULT="$reversed"
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IFS="$old_IFS"
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unset reversed
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unset old_IFS
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echo "$GS_MAKE_RESULT"
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