installActivator.sh

#!/bin/bash

# From ScalaCourses.com Introduction to Play Framework with Scala course

set -eo pipefail

function help {
  echo "Download or update Typesafe Activator on Linux and Cygwin"
  echo "Usage: $(basename $0) [options]"
  echo "Options are:"
  echo "  -m   Download minimal version (without prepackaged dependencies)"
  exit -1
}

# This installs Activator into /opt/activator-x.yy. You can change the root of the installation directory by modifying the next line:
DEST=/opt
QUIET="-q"
OS="$(expr substr $(uname -s) 1 6)"
MINMAX=maximum
if [ "$1" == "-m" ]; then 
  MINMAX=minimal
  shift
  echo "Fetching minimal version of Activator (without prepackaged dependencies)"
fi

if [ "$1" ]; then help; fi

function GET_VERSION {
  # Typical return value: 1.2.10
  echo "$(echo "$1" | sed -re 's^.*?/([0-9.]+)/.*?^\1^')"
}

function SETUP {
  if [ "$MINMAX" == minimal ]; then
	# Typesafe maintains the current version information for Activator at this URL:
	DL="$(wget --no-check-certificate -qO - https://activator-prod.herokuapp.com/latest | grep -Po 'http://.*?.zip' | head -n1)"
	# Typical value for DL is http://downloads.typesafe.com/typesafe-activator/1.2.10/typesafe-activator-1.2.10.zip
	
	AVER="$(GET_VERSION $DL)"
	ADIR=activator-$AVER-minimal
  else
	DL="$(wget --no-check-certificate -qO - https://activator-prod.herokuapp.com/latest | grep -Po 'http://.*?.zip' | head -n2 | tail -n1)"
	# Typical value for DL is http://downloads.typesafe.com/typesafe-activator/1.2.10/typesafe-activator-1.2.10-minimal.zip

	AVER="$(GET_VERSION $DL)"
	ADIR=activator-$AVER
  fi
  AZIP="typesafe-$ADIR.zip"
}

# Creates typesafe-activator-1.2.10
function UNZIP {
  if [ $OS == CYGWIN ]; then 
    cd "$HOMEDRIVE$HOMEPATH/Downloads"
  elif [ -d ~/Downloads ]; then 
    cd ~/Downloads
  fi
    
  if [ -f "$AZIP" ]; then
    echo "$PWD/$AZIP already exists, not downloading it again."
  else
    wget -O $AZIP http://downloads.typesafe.com/typesafe-activator/$AVER/$AZIP
  fi

  if [ -d "$ADIR" ]; then
    echo "$PWD/$ADIR already exists, not unzipping again."
  else
    unzip -o $QUIET $AZIP
    #rm $AZIP
  fi
}

SETUP
DESTPATH="$DEST/activator-$AVER"
if [ -d "$DESTPATH" ]; then
  echo "Activator $AVER not unzipped because $DESTPATH already exists"
  echo "$DESTPATH already exists, not moved into place"
else
  UNZIP
  if [ $OS == CYGWIN ]; then
    mv $ADIR $DESTPATH
  else
    sudo mv $ADIR $DESTPATH
  fi
  #rm -rf activator-$AVER
fi

mkdir -p ~/.activator
ACFG=~/.activator/activatorconfig.txt
if [ -f "$ACFG" ]; then
  if [ -z "$(grep 'Dhttp.nonProxyHost' $ACFG)" ]; then
    echo '-Dhttp.nonProxyHost="localhost|127.0.0.1"' >> "$ACFG"
  fi 
else
  echo '-Dhttp.nonProxyHost="localhost|127.0.0.1"' >> "$ACFG"
fi

# If activator is not on the path, create link to /usr/local/bin/activator (and the jar that actually contains Activator) so you can simply type 'activator' to run it
if [ -z "$(which activator)" ]; then
  ln "$DESTPATH/activator" /usr/local/bin/activator
  ln "$DESTPATH/activator-launch-$AVER.jar" /usr/local/bin/activator-launch-$AVER.jar
fi