# # This script configures PG+ # Brutually and blatently hacked from the Linux kernal compile :o) # # Disable filename globbing once and for all. # Enable function cacheing. set -f -h # # help prints the corresponding help text from Configure.help to stdout # # help variable # function help () { if [ -f configure/Configure.help ] then #first escape regexp special characters in the argument: var=$(echo "$1"|sed 's/[][\/.^$*]/\\&/g') #now pick out the right help text: text=$(sed -n "/^$var[ ]*\$/,\${ /^$var[ ]*\$/b /^#.*/b /^[ ]*\$/q p }" configure/Configure.help) if [ -z "$text" ] then echo; echo " Sorry, no help available for this option yet.";echo else (echo; echo "$text"; echo) | ${PAGER:-more} fi else echo; echo " Can't access the file Configure.help which" echo " should contain the help texts." echo fi } # # readln reads a line into $ans. # # readln prompt default oldval # function readln () { if [ "$DEFAULT" = "-d" -a -n "$3" ]; then echo "$1" ans=$2 else echo -n "$1" [ -z "$3" ] && echo -n "(NEW) " IFS='@' read ans </dev/tty || exit 1 [ -z "$ans" ] && ans=$2 fi } # # comment does some pretty-printing # # comment 'xxx' # function comment () { echo "*"; echo "* $1" ; echo "*" (echo "" ; echo "#"; echo "# $1" ; echo "#") >>$CONFIG (echo "" ; echo "/*"; echo " * $1" ; echo " */") >>$CONFIG_H } # # define_bool sets the value of a boolean argument # # define_bool define value # function define_bool () { case "$2" in "y") echo "$1=y" >>$CONFIG echo "#define $1 1" >>$CONFIG_H ;; "m") echo "$1=m" >>$CONFIG echo "#undef $1" >>$CONFIG_H echo "#define $1_MODULE 1" >>$CONFIG_H ;; "n") echo "# $1 is not set" >>$CONFIG echo "#undef $1" >>$CONFIG_H ;; esac eval "$1=$2" } # # bool processes a boolean argument # # bool question define # function bool () { old=$(eval echo "\${$2}") def=${old:-'n'} case "$def" in "y" | "m") defprompt="Y/n/?" def="y" ;; "n") defprompt="N/y/?" ;; esac while :; do readln "$1 ($2) [$defprompt] " "$def" "$old" case "$ans" in [yY] | [yY]es ) define_bool "$2" "y" break;; [nN] | [nN]o ) define_bool "$2" "n" break;; * ) help "$2" ;; esac done } # # define_int sets the value of a integer argument # # define_int define value # function define_int () { echo "$1=$2" >>$CONFIG echo "#define $1 ($2)" >>$CONFIG_H eval "$1=$2" } # # int processes an integer argument # # int question define default # function int () { old=$(eval echo "\${$2}") def=${old:-$3} while :; do readln "$1 ($2) [$def] " "$def" "$old" if expr "$ans" > /dev/null; then define_int "$2" "$ans" break else help "$2" fi done } # # define_string sets the value of a string argument # # define_string define value # function define_string () { echo "$1=\"$2\"" >>$CONFIG echo "#define $1 \"$2\"" >>$CONFIG_H eval "$1=\"$2\"" } # # int processes an integer argument # # string question define default # function string () { old=$(eval echo "\${$2}") def=${old:-$3} while :; do readln "$1 ($2) [$def] " "$def" "$old" if expr "$ans" > /dev/null; then define_string "$2" "$ans" break else help "$2" fi done } # # define_hex sets the value of a hexadecimal argument # # define_hex define value # function define_hex () { echo "$1=$2" >>$CONFIG echo "#define $1 0x${2#*[x,X]}" >>$CONFIG_H eval "$1=$2" } # # hex processes an hexadecimal argument # # hex question define default # function hex () { old=$(eval echo "\${$2}") def=${old:-$3} def=${def#*[x,X]} while :; do readln "$1 ($2) [$def] " "$def" "$old" ans=${ans#*[x,X]} if expr "$ans" : '[0-9a-fA-F]+$' > /dev/null; then define_hex "$2" "$ans" break else help "$2" fi done } # # choice processes a choice list (1-out-of-n) # # choice question choice-list default # # The choice list has a syntax of: # NAME WHITESPACE VALUE { WHITESPACE NAME WHITESPACE VALUE } # The user may enter any unique prefix of one of the NAMEs and # choice will define VALUE as if it were a boolean option. # VALUE must be in all uppercase. Normally, VALUE is of the # form CONFIG_<something>. Thus, if the user selects <something>, # the CPP symbol CONFIG_<something> will be defined and the # shell variable CONFIG_<something> will be set to "y". # function choice () { question="$1" choices="$2" old= def=$3 # determine default answer: names="" set -- $choices firstvar=$2 while [ -n "$2" ]; do if [ -n "$names" ]; then names="$names, $1" else names="$1" fi if [ "$(eval echo \"\${$2}\")" = "y" ]; then old=$1 def=$1 fi shift; shift done val="" while [ -z "$val" ]; do ambg=n readln "$question ($names) [$def] " "$def" "$old" ans=$(echo $ans | tr a-z A-Z) set -- $choices while [ -n "$1" ]; do name=$(echo $1 | tr a-z A-Z) case "$name" in "$ans"* ) if [ "$name" = "$ans" ]; then val="$2" break # stop on exact match fi if [ -n "$val" ]; then echo;echo \ " Sorry, \"$ans\" is ambiguous; please enter a longer string." echo val="" ambg=y break else val="$2" fi;; esac shift; shift done if [ "$val" = "" -a "$ambg" = "n" ]; then help "$firstvar" fi done set -- $choices while [ -n "$2" ]; do if [ "$2" = "$val" ]; then # echo " defined $val" define_bool "$2" "y" else define_bool "$2" "n" fi shift; shift done } CONFIG=configure/.tmpconfig CONFIG_H=configure/.tmpconfig.h trap "rm -f $CONFIG $CONFIG_H ; exit 1" 1 2 # # Make sure we start out with a clean slate. # echo "#" > $CONFIG echo "# Playground+ Configuration File" >> $CONFIG echo "# Use 'make config' to edit this" >> $CONFIG echo "#" >> $CONFIG echo "/*" > $CONFIG_H echo " * Playground+ - autoconfig.h" >> $CONFIG_H echo " * Configuration details. Don't edit this but use \"make config\" to change!" >> $CONFIG_H echo " * ---------------------------------------------------------------------------" >> $CONFIG_H echo " */" >> $CONFIG_H echo " " >> $CONFIG_H DEFAULT="" if [ "$1" = "-d" ] ; then DEFAULT="-d" shift fi CONFIG_OPS=./Configure.options if [ "$1" != "" ] ; then CONFIG_OPS=$1 fi DEFAULTS=configure/Configure.defaults if [ -f configure/.config ]; then DEFAULTS=configure/.config fi if [ -f $DEFAULTS ]; then echo "#" echo "# Using defaults found in" $DEFAULTS echo "#" . $DEFAULTS sed -e 's/# \(.*\) is not.*/\1=n/' < $DEFAULTS > /tmp/conf.$$ . /tmp/conf.$$ rm /tmp/conf.$$ else echo "#" echo "# No defaults found" echo "#" fi . $CONFIG_OPS rm -f configure/.config.old if [ -f configure/.config ]; then mv configure/.config configure/.config.old fi mv configure/.tmpconfig configure/.config mv configure/.tmpconfig.h configure/.config.h cp configure/.config.h include/autoconfig.h exit 0