#!/bin/bash

# Quick script used to setup Eclipse for the ADT plugin build.
#
# usage:
#   setup_eclipse.sh <dest_dir>
#
# Workflow:
# - downloads & unpack Eclipse if necessary
# - *runs* it once


#-----------------
#
# Note: right now this is invoked by //device/tools/eclipse/doBuild.sh
# and it *MUST* be invoked with the following destination directory:
#
# $ setup_eclipse.sh /buildbot/eclipse-android/3.4.0/
#
#-----------------


set -e # abort this script early if any command fails

function die() {
  echo $@
  exit 1
}

if [ "-p" == "$1" ]; then
  GET_PID="-p"
  shift
fi

BASE_DIR="$1"

[ -n "$1" ] || die "Usage: $0 <dest-dir>"

# URL for 3.4.0 RCP Linux 32 Bits. Includes GEF, WTP as needed.
DOWNLOAD_URL="http://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/ganymede/SR2/eclipse-rcp-ganymede-SR2-linux-gtk.tar.gz&url=http://eclipse.unixheads.org/technology/epp/downloads/release/ganymede/SR2/eclipse-rcp-ganymede-SR2-linux-gtk.tar.gz&mirror_id=480"

BIN="$BASE_DIR/eclipse/eclipse"           # path to installed binary
TARGZ="$BASE_DIR/eclipse-rcp-ganymede-linux-gtk.tar.gz"

if [ ! -f "$BIN" ]; then   
  echo "Downloading and installing Eclipse in $BASE_DIR."
  mkdir -p "$BASE_DIR"
  wget --continue --no-verbose --output-document="$TARGZ" "$DOWNLOAD_URL"
  echo "Unpacking $TARGZ"
  (cd "$BASE_DIR" && tar xzf "$TARGZ")
    
  echo
  echo "*** WARNING: To setup Eclipse correctly, it must be ran at least once manually"
  echo "***          Eclipse will now start."
  echo
  if [ -n "$GET_PID" ]; then
    # if started from the automatic eclipse build, run Eclipse in the background
    "$BIN" &
    ECLIPSE_PID=$!
    echo "*** Eclipse started in background with PID $ECLIPSE_PID"
    echo "$ECLIPSE_PID" > "$BASE_DIR"/eclipse.pid
    sleep 5  # give some time for Eclipse to start and setup its environment
  else
    # if started manually, run Eclipse in the foreground
    "$BIN"
  fi
fi
