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#!/bin/sh
# vim:ft=sh:ts=4:sw=4:expandtab
# Configured variables #####################################################
# Described in following format:
# name:initial value:type:if exported to makefile:if exported to C header
# Where type can be just a string (in C in "") or plain. None implies plain.
CNFS="SGP_VERSION:0.1:string:F:T
SGP_CONTACT:cynerd@email.cz:string:F:T
PREFIX:/usr/local:string:T:F
MOD_LUA:true::T:F
MOD_PYTHON:true::T:F
DEBUG:false::T:F
CFLAGS:::T:F
LFLAGS:::T:F"
############################################################################
print_help() {
echo "Usage: ./configure [OPTION]..."
echo "SGP configuration script. Execute this script to configure project"
echo "and prepare it for building."
echo
echo " --help, -h Give this help list"
echo " --prefix=PATH Set PATH as installation prefix."
echo " In default /usr/local"
echo " --debug, -d Enable development features."
echo " --release, -r Disable development features for project."
echo " --dep-check Force depencency check for this machine."
echo
echo " --mod-lua-enable, --mod-lua-disable"
echo " Set if Lua module should be compiled. In default is enabled."
echo " --mod-python-enable, --mod-python-disable"
echo " Set if Python module should be compiled. In default is enabled."
echo
echo "Environment variables:"
echo " CROSS_COMPILE Prefix for compilation tools."
echo
echo "SGP version $SGP_VERSION"
echo "Report bugs to <$SGP_CONTACT>."
}
CONFIG_FILE=.config
CONFIGURED_FILE=.configured # TODO
# TODO support for values with escaped colons
# Load default configuration
eval `echo "$CNFS" | grep -o -E '^[^:]*:[^:]*' | sed 's/:/=/'`
# Load existing configuration
if [ -f "$CONFIG_FILE" ]; then
source ./"$CONFIG_FILE"
fi
# Requested operation.
# c - Configure, default configuration behavior
# m - Prints output for Makefile
# h - Prints C header file (machine validation is skipped)
OP=c
# Parse arguments
while [ "$#" -gt 0 ]; do
case $1 in
-h|-?|--help)
print_help
exit 0
;;
--prefix=*)
# TODO
;;
-d|--debug)
DEBUG=True
;;
-r|--release)
DEBUG=False
;;
--mod-lua-enable)
MOD_LUA=true
;;
--mod-lua-disable)
MOD_LUA=false
;;
--mod-python-enable)
MOD_PYTHON=true
;;
--mod-python-disable)
MOD_PYTHON=false
;;
--op-makefile)
OP=m
;;
--op-h)
OP=h
;;
*)
echo Unknown option $1 1>&2
exit 2
;;
esac
shift
done
# Basically save configuration to file
configure() {
echo "# SGP configuration file" > "$CONFIG_FILE"
echo "# Please do not edit this file directly." >> "$CONFIG_FILE"
echo "$CNFS" | while read L; do
NAME=`echo "$L" | grep -o -E '^[^:]*'`
eval "VALUE=\$$NAME"
echo "$NAME=$VALUE" >> "$CONFIG_FILE"
done
echo "Configuration written to \"$CONFIG_FILE\""
}
# Generate Makefile and configure them if they doesn't exists in PWD
doext() {
if [ -f "Makefile" ] || [ -f configure ]; then
return
fi
SGPDIR=`dirname "$0"`
echo "# This is external Makefile for SGP." > Makefile
echo "export CROSS_COMPILE=$CROSS_COMPILE" >> Makefile
echo >> Makefile
echo "SGP_PATH = $SGPDIR" >> Makefile
echo >> Makefile
echo "MAKEARGS := -C \"\$(SGP_PATH)\"" >> Makefile
echo "MAKEARGS += O=\"\$(shell pwd)\"" >> Makefile
echo >> Makefile
echo "MAKEFLAGS += --no-print-directory" >> Makefile
echo >> Makefile
echo "Q = @" >> Makefile
echo ".PHONY: all \$(MAKECMDGOALS)" >> Makefile
echo "all \$(MAKECMDGOALS):" >> Makefile
echo " \$(Q)\$(MAKE) \$(MAKEARGS) \$@" >> Makefile
echo Created local Makefile
echo "# This is external configure script for SGP." > configure
echo "SGP_PATH=$SGPDIR" >> configure
echo "\$SGP_PATH/configure \$@" >> configure
chmod +x configure
echo Created local configure script
}
makefile() {
echo "$CNFS" | while read L; do
if [ `echo $L | awk -F ':' '{ print $4 }'` != "T" ]; then
continue
fi
NAME=`echo "$L" | grep -o -E '^[^:]*'`
eval "VALUE=\$$NAME"
echo "$NAME = $VALUE"
done
}
cheader() {
echo "$CNFS" | while read L; do
if [ `echo $L | awk -F ':' '{ print $5 }'` != "T" ]; then
continue
fi
NAME=`echo "$L" | grep -o -E '^[^:]*'`
eval "VALUE=\$$NAME"
if [ "`echo $L | awk -F ':' '{ print $3 }'`" = "string" ]; then
echo "#define $NAME \"$VALUE\""
else
echo "#define $NAME $VALUE"
fi
done
}
validate() {
echo -n
# TODO check dependencies and programs
}
case $OP in
c)
validate
doext
configure
;;
m)
validate
makefile
;;
h)
cheader
;;
esac
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