Subversion Repositories usb_fpga_2_04

#!/bin/bash

# Makefile.config -- script for automatic configuration of Makefile variables

# Copyright (C) 2002-2003 Stefan Ziegenbalg

configfile=Makefile.conf

# nice output routines

#    \033          is just ascii ESC

#    \033[G   move to column 

#    \033[1m       switch bold on

#    \033[31m      switch red on

#    \033[32m      switch green on

#    \033[33m      switch yellow on

#    \033[m        switch color/bold off

echo_red () {

    echo -e "\033[31m\033[1m$1\033[m" >&2

}

echo_green () {

    echo -e "\033[32m$1\033[m" >&2

}

echo_yellow () {

    echo -e "\033[33m\033[1m$1\033[m" >&2

}

# read config file

readconfig () {

    result="-"

    read var par

    while [ "$result" = "-" -a "$var" != "" ]; do

        [ "$var" = "$1" ] && result=$par

        read var par

    done

    echo $result

}

# remove temporay files

rmtmp () {

    rm -f $tmpfile $tmpfile.*

}

# checks coompilinmg + running

# $1 compiler command + flags

# $2 test file (without .pas)

checkcr () {

    echo "$1 $2" >> $tmpfile.log

    $1 $2 >> $tmpfile.log 2>> $tmpfile.log

    if [ "$?" = "0" ]; then

      echo "./$2" >> $tmpfile.log

      ./$2

    else

      return 1

    fi

}

# checks command

findexec () {

    result=""

    for i; do

      if [ "$result" = "" ]; then

        if [ "${i#*/}" = "$i" ]; then

            which $i >> $tmpfile.log 2>> $tmpfile.log

            [ "$?" = "0" ] && result=$i

        else

            [ -x $i -a ! -d $i ] && result=$i

        fi

      fi

    done

    echo $result

}

failure () {

    echo -n $failreturn

    exit 1

}

#####################

##### main part #####

#####################

failreturn=""

case "$1" in

  "pc2") cmd=pc; failreturn="ppc386" ;;

  "install2") cmd=install; failreturn="install" ;;

  "findexec2") cmd=findexec; failreturn=${2%% *} ;;

  *) cmd=$1 ;;

esac

case "$cmd" in

    "findexec")  varname=$cmd_$2 ;;

    "have_unit") varname=have_$3 ;;

    "unit_flags") varname=$3"_flags" ;;

    *) varname=$cmd ;;

esac

tmpfile="conf_$varname"

result="-"

[ -f $configfile -a "$varname" != "" ] && result=`readconfig $varname < $configfile`

if [ "$result" != "-" ]; then

    echo $result

    exit 0

fi

result=""

rm -f $tmpfile.log

case "$cmd" in

    "pc")

        echo -n "Checking for freepascal compiler (FLAGS=\"$2\"): " >&2

        echo -e "begin\nend." > $tmpfile.pas

        for i in ppc386 fpc pc $3; do

            if [ "$result" = "" ]; then

                if [ "${i#*/}" = "$i" ]; then

                    which $i >> $tmpfile.log 2>> $tmpfile.log

                    [ "$?" = "0" ] && checkcr "$i $2" $tmpfile && result=$i

                else

                    [ -x $i -a ! -d $i ] && checkcr "$i $2" $tmpfile && result=$i

                fi

            fi

        done

        if [ "$result" != "" ]; then

            echo_green "$result"

            rmtmp

        else

          echo_red "not found"

          failure

        fi

    ;;

    "install")

        echo -n "Checking for install command: " >&2

        result=`findexec install ginstall $2`

        if [ "$result" != "" ]; then

            echo_green "$result"

            rmtmp

        else

          echo_red "not found"

          failure

        fi

    ;;

    "have_unit" | "unit_flags" )

        echo -n "Checking for $3 unit: " >&2

        echo -e "uses $3;\nbegin\nend." > $tmpfile.pas

        for i in $4 " "; do

          if [ "$result" = "" ]; then

            if [ "$i" = " " ]; then

              checkcr "$2" $tmpfile && result=$i

            else

              [ -f $i/$3.ppu ] && checkcr "$2 -Fu$i" $tmpfile && result=$i

            fi

          fi

        done

        if [ "$result" != "" ]; then

          if [ "$result" = " " ]; then

            echo_green "available"

          else

            echo_green "$result"

            result="-Fu$result"

          fi

          if [ "$1" = "have_unit" ]; then

            echo "$3""_flags $result" >> $configfile

            result=1

          else

            echo "have_$3 1" >> $configfile

          fi

          rmtmp

        else

          echo_yellow "not available"

          echo "$3""_flags " >> $configfile

          if [ "$1" = "have_unit" ]; then

            result=0

          else

            echo "have_$3 0" >> $configfile

            failure

          fi

        fi

    ;;

    "optalign")

        echo -n "Checking for -Oa flag: " >&2

        echo -e "begin\nend." > $tmpfile.pas

        checkcr "$2 -Oa" $tmpfile

        if [ "$?" = "0" ]; then

          echo_green "works"

          result=1

          rmtmp

        else

          echo_yellow "failed"

          result=0

        fi

    ;;

    "findexec")

        echo -n "Checking for $2: " >&2

        result=`findexec $3`

        if [ "$result" != "" ]; then

            echo_green "$result"

            rmtmp

        else

          echo_red "not found"

          failure

        fi

    ;;

    *)

        echo "$0 -- script for automatic configuration of Makefile variables"

        echo

        echo

        echo "    !! Run make to build the project or run ./update to update the Makefile (e.g. after changing sources)!!"

        echo

        echo

        echo "Usage: $0  [options]"

        echo ""

        echo "variables:"

        echo "  pc [compiler flags [additional compilers]]"

        echo "    checks for freepascal compiler, returns \"\" on failure"

        echo ""

        echo "  pc2 [compiler flags [additional compilers]]"

        echo "    as above, but ppc386 is returned on failure"

        echo ""

        echo "  install [additonal commands]"

        echo "    checks for install command, returns \"\" on failure"

        echo ""

        echo "  install2 [additonal commands]"

        echo "    as above, but install is returned on failure"

        echo ""

        echo "  have_unit   []"

        echo "    checks whether  is available; returns 0 on failure, 1 on success; unit list must be coma separated"

        echo ""

        echo "  unit_flags    []"

        echo "    as above, but returns \"-ul\" if unit found in []"

        echo ""

        echo "  optalign "

        echo "    checks whether -Oa flag works"

        echo ""

        echo "  findexec  "

        echo "    checks for existing executable in "

        echo ""

        echo "  findexec2  "

        echo "    as above, but first variant is returned on failure"

        echo ""

        exit 1

    ;;

esac

[ "$result" != "" -a "$varname" != "" ] && echo "$varname $result" >> $configfile

echo $result