# This is included by jh_* and contains common functions
#
# - argument parsing
# - package selection
#

JAVATOOLS_VERSION=%JAVATOOLS_VERSION%

parseargs()
{
   ARGC=0
   ARGV=()
   debhelper=
   while [ -n "$1" ]; do
      ignore=no
      arg="$1"
      if [ "-O" = "${arg:0:2}" ] ; then
         arg="${arg:2}"
         ignore=yes
      fi
      if [ "-V" = "$arg" ] || [ "--version" = "$arg" ]; then
         echo "Javahelper Version $JAVATOOLS_VERSION"
         exit 0
      elif [ "-h" = "$arg" ] || [ "--help" = "$arg" ]; then
         syntax
      elif [ "--with" = "$arg" ]; then
         debhelper=true
         shift
      elif [ "-" = "${arg:1:1}" ]; then
      # long opt
         optn="`sed 's/^--\([^=]*\)\(=.*\)*$/\1/;s/-/_/g' <<< $arg`"
         if [ -z "$optn" ] || ! echo $ARGS | sed 's/-/_/g' | grep $optn >/dev/null; then
	     if [ -z "$debhelper" -a "$ignore" != "yes" ]; then
		 echo "Invalid option: $optn"
		 syntax
	     fi
         fi
         optv="`echo $arg | sed -n 's/^[^=]*=\(.*\)$/\1/p'`"
         if [ -z "$optv" ]; then
            optv=true
         fi
         optname="opt_$optn"
         if [ -n "${!optname}" ]; then
            export opt_$optn="${!optname} $optv"
         else
            export opt_$optn="$optv"
         fi
      elif [ "-" = "${arg:0:1}" ]; then
      # short opt
         optn="${arg:1:1}"
         if [ -z "$optn" ] || ! echo $ARGS | grep $optn >/dev/null; then
	     if [ -z "$debhelper" -a "$ignore" != "yes" ]; then
		 echo "Invalid option: $optn"
		 syntax
	     fi
         fi
         optv="${arg:2}"
         if [ -z "$optv" ]; then
            optv=true
         fi
         optname="opt_$optn"
         if [ -n "${!optname}" ]; then
            export opt_$optn="${!optname} $optv"
         else
            export opt_$optn="$optv"
         fi
      else
      # not-opt arg
         ARGV[$ARGC]="$arg"
         ARGC=$(( $ARGC + 1 ))
      fi
      shift
   done

   # treat DH_VERBOSE being set as a -v flag
   if [ -n "$DH_VERBOSE" ]; then
      export opt_v="true"
   fi

   export ARGC
   export ARGV
}

findpackages()
{
   if [ -n "$opt_p" ]; then
      echo $opt_p
   elif [ -n "$opt_package" ]; then
      echo $opt_package
   elif [ -n "$opt_i" ] || [ -n "$opt_indep" ]; then
      egrep '^(Package|Architecture)' debian/control | grep -B1 'Architecture: all'|sed -n '/^Package:/s/^[^:]*: *//p'
   elif [ -n "$opt_a" ] || [ -n "$opt_arch" ] || [ -n "$opt_s" ] || [ -n "$opt_same_arch" ]; then
      egrep '^(Package|Architecture)' debian/control | grep -v 'Architecture: all' | grep -B1 Architecture|sed -n '/^Package:/s/^[^:]*: *//p'
   else
      sed -n '/^Package:/s/^[^:]*: *//p' debian/control
   fi
}

firstpackage()
{ 
   findpackages | head -n1
}

getarg()
{
   while [ -n "$1" ]; do
      optn="`sed 's/-/_/g' <<< opt_$1`"
      if [ -n "${!optn}" ]; then
         echo ${!optn}
      fi
      shift
   done
}

# extractline <manifestfile> <key>
extractline()
{
   count=`wc -l < "$1"`
   inkey=
   value=
   i=1
   while (( $i <= $count ));
   do
      line="`head -n$i "$1" | tail -n1 | sed -e 's/\r//'`"
      if [ -n "$inkey" ]; then
         if [ "${line:0:1}" == " " ]; then
            value="$value${line:1}"
         else
            break
         fi
      else
         if echo "$line" | grep "^$2:" > /dev/null; then
            inkey=true
            value="`sed 's/^[^:]*: *//' <<< $line`"
         fi
      fi
      i=$(( $i + 1 ))
   done
   echo $value
}