doinstall

#!/bin/sh

prefix=''
has_gnatpro=n
machine=''
installdir=''

# --------------------- Actual Installation of Gprbuild --------------
do_install ()
{
   if [ ! -d $installdir ]; then
       mkdir -p $installdir
   fi

   if tar cf - bin libexec share | (cd $installdir && tar xf -) ; then

      # --------------------------- End of the script -----------------------
      clear
      echo " "
      echo "gprbuild has been installed in $installdir"
      echo "Thank you for using gprbuild!"
      echo " "

   else
      echo
      echo "The installation of gprbuild failed."
      echo "Please check the error messages above."
      echo
   fi
}

if [ $# -eq 1 ]; then
  if [ "$1" = "--help" ]; then
    cat << EOF
   Usage: $0 [install_dir]

   When no argument is specified, runs the gprbuild installer
   interactively, otherwise installs automatically under install_dir.
EOF
  else
    echo "    installing gprbuild under $1"
    installdir="$1"
    do_install
  fi
  exit 0
fi

# Otherwise perform interactive install

ggd_prefix=''
if [ "x$ggd_prefix" = "x" ]; then
    ggd_prog="gnatmake"
else
    ggd_prog="$ggd_prefix-gnatmake"
fi
if type $ggd_prog > /dev/null 2>&1 &&
   $ggd_prog -v 2>&1 | grep GNATMAKE | grep -q Pro;
then
    has_gnatpro=y
    saved_IFS="$IFS"
    IFS=:
    for d in $PATH; do
      if [ -x "$d/$ggd_prog" ]; then
        prefix=$d
        break
      fi
    done
    IFS="$saved_IFS"
    machine=`$prefix/gcc -dumpmachine || true`
fi

# remove last 'bin' from prefix as it's not expected
prefix=`echo $prefix | sed 's/\/bin$//'`

clear
cat << EOF


   This script is provided to simplify the installation of the $machine
   binary distribution of gprbuild - the multi languages project builder.
   For information on commercial support, please contact sales@adacore.com.

   This script will ask a few questions regarding the gprbuild installation.
   Confirmation is required before any write action is taken.

   Please press RETURN to continue.

EOF

read x

# --------------------- Select installation option --------------------
clear
cat << EOF


  There are 2 options for installation:
EOF

if [ "$has_gnatpro" = "y" ]; then
cat <<EOF

  1) Install gprbuild in the standard GNAT Pro location.
     ($prefix)

EOF
else
cat <<EOF

  1) Install gprbuild in /usr/local (must be root)

EOF
fi

cat <<EOF

  2) Install gprbuild in non-standard locations that you will
     specify.

EOF

if [ "$has_gnatpro" = "y" ]; then
cat <<EOF

  Option 1 provides simplest use of gprbuild.

EOF
fi

while [ true ]; do
  echo "Type 1, or 2 (then RETURN) to choose an option: "
  read answer
  case $answer in

  # ------------------ Custom  installation ---------------------------
  2)
    clear
    cat << EOF


    To install gprbuild in a non-standard location you need to
    specify a base directory.  All the files will be installed in
    subdirectories that are created under this directory.

    Important Note: You should not use ~ or ~username wildcards
    when specifying this directory name.

    Specify the base directory you want to use for installation:

EOF
    read basedir
    while [ true ]; do
      if [ "X" = "X`echo $basedir|sed -n -e 's%^/.*%/%p'`" ]; then
          basedir=`pwd`/$basedir
      fi
      echo "    " The base directory is $basedir
      echo "    " To accept this choice enter RETURN.
      echo "    " Otherwise type a new name.
      read answer
      if [ "X$answer" = "X" ]; then
          break
      fi
      basedir=$answer
    done
    clear
    installdir=$basedir
    break
    ;;

  # ------------------ Regular installation ---------------------------
  1)
    if [ "$has_gnatpro" = "y" ]; then
       installdir=$prefix
    else
       installdir="/usr/local"
    fi
    break
    ;;

  *)
    echo "Incorrect choice"
    ;;
 esac
done

do_install