#!/bin/sh
#
# %CopyrightBegin%
#
# Copyright Ericsson AB 1996-2017. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# %CopyrightEnd%
#
usage="
Usage:
  Install [-cross] [-minimal|-sasl] <ERL_ROOT>
"
start_option=query
unset cross
while [ $# -ne 0 ]; do
	case $1 in
		-minimal) start_option=minimal ;;
		-sasl)    start_option=sasl    ;;
		-cross)   cross=yes            ;;
		*)        ERL_ROOT=$1          ;;
	esac
	shift
done

if [ -z "$cross" ]
then
    TARGET_ERL_ROOT="$ERL_ROOT"
else
    TARGET_ERL_ROOT="$ERL_ROOT"
    ERL_ROOT=`pwd`
fi

if [ -z "$ERL_ROOT" -o ! -d "$ERL_ROOT" ]
then
    echo "Install: need <ERL_ROOT> directory as argument" >&2
    echo $usage >&2
    exit 1
fi

case ":$ERL_ROOT" in
    :/*)
       ;;
    *)
       echo "Install: need an absolute path to <ERL_ROOT>" >&2
       echo $usage >&2
       exit 1
       ;;
esac

if [ ! -d "$ERL_ROOT/erts-9.2.0.1/bin" ]
then
    echo "Install: The directory $ERL_ROOT/erts-9.2.0.1/bin does not exist" >&2
    echo "         Bad location or erts module not un-tared" >&2
    echo $usage >&2
    exit 1
fi

if [ ! -d "$ERL_ROOT/bin" ]
then
    mkdir "$ERL_ROOT/bin"
fi

cd "$ERL_ROOT/erts-9.2.0.1/bin"

sed -e "s;%FINAL_ROOTDIR%;$TARGET_ERL_ROOT;" erl.src > erl
chmod 755 erl

#
# Create start file for embedded system use,
#
(cd "$ERL_ROOT/erts-9.2.0.1/bin";
  sed -e "s;%FINAL_ROOTDIR%;$TARGET_ERL_ROOT;" start.src > start;
  chmod 755 start)

cd "$ERL_ROOT/bin"

cp -p "$ERL_ROOT/erts-9.2.0.1/bin/erl" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/erlc" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/dialyzer" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/typer" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/ct_run" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/escript" .

#
# Set a soft link to epmd
# This should not be done for an embedded system!
#

# Remove old links first.
if [ -h epmd ]; then
  /bin/rm -f epmd
fi

ln -s ../erts-9.2.0.1/bin/epmd epmd

cp -p "$ERL_ROOT/erts-9.2.0.1/bin/run_erl" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/to_erl" .
cp -p "$ERL_ROOT/erts-9.2.0.1/bin/start" .
sed -e "s;%EMU%;beam;" "$ERL_ROOT/erts-9.2.0.1/bin/start_erl.src" > start_erl
chmod 755 start_erl
echo ""

echo 9.2.0.1 20 > "$ERL_ROOT/releases/start_erl.data"
sed -e "s;%ERL_ROOT%;$TARGET_ERL_ROOT;" "$ERL_ROOT/releases/RELEASES.src" > "$ERL_ROOT/releases/RELEASES"

if [ "$start_option" = "query" ]
then
    echo "Do you want to use a minimal system startup"
    echo "instead of the SASL startup? (y/n) [n]: " | tr -d '\012'
    read reply
    case $reply in
    [Yy]*)
	start_option=minimal ;;
    *)
	start_option=sasl ;;
    esac
fi

case $start_option in
    minimal)
	Name=start_clean ;;
    sasl)
	Name=start_sasl  ;;
    *)
	Name=start_sasl  ;;
esac

cp -p ../releases/20/start_*.boot .
cp -p ../releases/20/no_dot_erlang.boot .
cp -p $Name.boot start.boot
cp -p ../releases/20/$Name.script start.script
#
# Fixing the man pages
#

if [ -d "$ERL_ROOT/man" ]
then
    cd "$ERL_ROOT"
    ./misc/format_man_pages "$ERL_ROOT"
fi

exit 0
