px4-firmware/misc/pascal/Configure

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#! /bin/sh
############################################################################
# Configure
#
# Copyright (C) 2008, 2011 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
Usage=" \n
+---------------- \n
| USAGE: \n
| ./Configure [--debug] [--help] \n
| \n
| OPTIONS: \n
| --debug \n
| Prints what script is doing \n
| \n
| --reconfig \n
| Just regenerate the Make.config file \n
| \n
| --help \n
| Prints this block. \n
+---------------- \n
"
# readans prompt default
#
function readans () {
echo -n "$1 ($2): "
IFS='@' read ans || exit 1
[ -z "$ans" ] && ans=$2
}
# readyn prompt default
#
function readyn () {
while :; do
readans "$1 [Y/N]" $2
case "$ans" in
[yY] | [yY]es )
ans=y
break ;;
[nN] | [nN]o )
ans=n
break ;;
* )
echo "Please answer Y or N"
;;
esac
done
}
# Process command line arguments
#
REGEN="NO"
while [ $# -gt 0 ] ; do
case "$1" in
--debug )
set -x
Pause="read press return to continue"
;;
--regen )
REGEN="YES"
;;
*)
echo $Usage
exit -1
;;
esac
shift
done
# Setup configurations files
#
CONFIGFILE=./.config
MAKECONFIG=Make.config
TMPCONFIGFILE=TMP.config
TMPMAKECONFIG=TMP.Make.config
# Remove temporary configuration files in case we are restarting
# after control-C
#
rm -f $TMPCONFIGFILE $TMPMAKECONFIG
# Get information about the configuration settings
#
source ./config.info
# Set up default values for all configuration settings
#
for i in $CONFIGS
do
config_name=$(echo $i|cut -d':' -f1)
default_value=$(echo $i|cut -d':' -f2)
eval $config_name=$default_value
done
# If we have been previously configured, then there should be both
# .config and Make.config files. Source the .config file, overwriting
# the defaults that we set up above.
#
if [ -e ${CONFIGFILE} ] ; then
source ${CONFIGFILE}
else
# We can't regenerate the Make.config file if there is no
# .config file
#
REGEN="NO"
fi
# Output the new Config file and Makefile fragment headers
#
SEPARATOR="# ----------------------------------------------------------------------"
if [ "${REGEN}" != "YES" ]; then
echo "#!/bin/sh" >${TMPCONFIGFILE}
echo "#" >>${TMPCONFIGFILE}
echo "# Auto generated by Configure. Do not edit" >>${TMPCONFIGFILE}
echo "#" >>${TMPCONFIGFILE}
fi
echo $SEPARATOR >${TMPMAKECONFIG}
echo "# Make.config" >>${TMPMAKECONFIG}
echo "#" >>${TMPMAKECONFIG}
echo "# This file controls the configuration of the compiler" >>${TMPMAKECONFIG}
echo "# Auto generated by Configure. Do not edit" >>${TMPMAKECONFIG}
echo $SEPARATOR >>${TMPMAKECONFIG}
echo "#" >>${TMPMAKECONFIG}
# Prompt for the setting of each configuration variable
for i in $CONFIGS
do
config_name=$(echo $i|cut -d':' -f1)
eval desc=\$${config_name}_INFO
eval config_value=\$$config_name
if [ "${REGEN}" != "YES" ]; then
readyn "$desc" $config_value
eval config_value=$ans
echo "$config_name=$config_value" >>${TMPCONFIGFILE}
fi
echo $SEPARATOR >>${TMPMAKECONFIG}
echo "# $desc" >>${TMPMAKECONFIG}
echo $SEPARATOR >>${TMPMAKECONFIG}
echo "$config_name = $config_value" >>${TMPMAKECONFIG}
echo "" >>${TMPMAKECONFIG}
done
# Make the changes permanent
#
if [ "${REGEN}" != "YES" ]; then
mv -f $TMPCONFIGFILE $CONFIGFILE
chmod 755 $CONFIGFILE
echo "Config script \"${CONFIGFILE}\" created"
fi
mv -f $TMPMAKECONFIG $MAKECONFIG
chmod 644 $MAKECONFIG
echo "Make fragment \"${MAKECONFIG}\" created"