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path: root/erts/etc/win32/nsis/find_redist.sh
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#! /bin/sh
# 
# %CopyrightBegin%
# 
# Copyright Ericsson AB 2007-2009. All Rights Reserved.
# 
# The contents of this file are subject to the Erlang Public License,
# Version 1.1, (the "License"); you may not use this file except in
# compliance with the License. You should have received a copy of the
# Erlang Public License along with this software. If not, it can be
# retrieved online at http://www.erlang.org/.
# 
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
# 
# %CopyrightEnd%
# 

# first find some tool we know exists, i.e. cl.exe
lookup_prog_in_path ()
{
    PROG=$1
    save_ifs=$IFS
    IFS=:
    for p in $PATH; do
	# In cygwin the programs are not always executable and have .exe suffix...
	if [ "X$TARGET" = "Xwin32" ]; then
	    if [ -f $p/$PROG.exe ]; then
		echo $p/$PROG
		break;
	    fi
	else
	    if [ -x $p/$PROG ]; then
		echo $p/$PROG
		break;
	    fi
	fi
    done
    IFS=$save_ifs
}

remove_path_element()
{
    EL=$1
    PA=$2
    ACC=""
    save_ifs=$IFS
    IFS=/
    set $PA
    N=$#
    while [ $N -gt 1 ]; do
	if [ '!' -z "$1" ]; then
	    ACC="${ACC}/$1"
	fi
	N=`expr $N - 1`
	shift
    done
    UP=`echo $1 | tr [:lower:] [:upper:]`
    ELUP=`echo $EL | tr [:lower:] [:upper:]`
    IFS=$save_ifs
    if [ "$UP" = "$ELUP" ]; then
	echo "$ACC"
    else
	echo "${ACC}/$1"
    fi

    #echo "ACC=$ACC" >&2
    #echo "1=$1" >&2
}
	
add_path_element()
{
    EL=$1
    PA=$2

    ELUP=`echo $EL | tr [:lower:] [:upper:]`
    #echo "PA=$PA" >&2
    for x in ${PA}/*; do
	#echo "X=$x" >&2
	UP=`basename "$x" | tr [:lower:] [:upper:]`
	#echo "UP=$UP" >&2
	if [ "$UP" = "$ELUP" ]; then
	    echo "$x"
	    return 0;
	fi
    done
    echo "$PA"
}

CLPATH=`lookup_prog_in_path cl`

if [ -z "$CLPATH" ]; then 
    echo "Can not locate cl.exe and vcredist_x86.exe - OK if using mingw" >&2
    exit 1
fi

#echo $CLPATH
BPATH=$CLPATH
for x in cl bin vc; do
    #echo $x
    NBPATH=`remove_path_element $x "$BPATH"`
    if [ "$NBPATH" = "$BPATH" ]; then
	echo "Failed to locate vcredist_x86.exe because cl.exe was in an unexpected location" >&2
	exit 2
    fi
    BPATH="$NBPATH"
done
#echo $BPATH
STARTPATH=$BPATH
for verdir in v2.0 v3.5; do
BPATH=$STARTPATH
fail=false
for x in sdk $verdir bootstrapper packages vcredist_x86 vcredist_x86.exe; do
    #echo "x=$x"
    #echo "BPATH=$BPATH"
    NBPATH=`add_path_element $x "$BPATH"`
    if [ "$NBPATH" = "$BPATH" ]; then
	fail=true
	break;
    fi
    BPATH="$NBPATH"
done
if [ $fail = false ]; then
    break;
fi
done
if [ $fail = false ]; then
    echo $BPATH
    exit 0
else
    echo "Failed to locate vcredist_x86.exe because directory structure was unexpected" >&2
    exit 3
fi