configure

#!/bin/sh

BUILD_DIR=build
SRC_DIR=`pwd`/src
BUILD_CFG=$BUILD_DIR/config.json
NODE=`which node`
UGLIFY=`which uglifyjs`
VERSION=`cat VERSION`

CUR_DIR=$PWD

#possible relative path
WORKINGDIR=`dirname $0`
cd "$WORKINGDIR"
#abs path
WORKINGDIR=`pwd`
cd "$CUR_DIR"

OBJECT_NAME="HydnaChannel"

DISABLE_WS=false
DISABLE_FLASH=false
DISABLE_COMET=false

COMET_PATH="/comet/"
FLASH_PATH="bridge.swf"


function usage()
{
echo "usage: $0 [options]"
echo
echo "This script configures the hydnajs library."
echo
echo "Available options:"
echo "  -h, --help              Show this message"
echo "  -V, --version           Show package version"
echo "      --environment=NAME  Configure for a specific environment"
echo "      --comet-path=PATH   Sets path where comet requests should be sent, default '/comet/'"
echo "      --flash-path=URL    Sets the flash url, defaults to 'bridge.swf'"
echo "      --disable-comet     Removes all comet code from the output"
echo "      --disable-flash     Removes all flash code from the output"
echo "      --disable-ws        Removes all websocket code from the output"
exit $1
}


function confenvironment()
{
case "$OPTARG" in
  "hydna" )
    echo "Configure for 'hydna' environment"
    OBJECT_NAME="HydnaChannel"
    COMET_PATH="/comet/"
    FLASH_PATH="http://cdn.hydna.com/1/bridge.swf"
   ;;
  "test" )
    echo "Configure for 'test' environment"
    OBJECT_NAME="TestChannel"
    COMET_PATH="/comet/"
    FLASH_PATH="../dist/bridge.swf"
   ;;
  "cdnjs" )
    echo "Configure for 'cdnjs' environment"
    OBJECT_NAME="HydnaChannel"
    COMET_PATH="/comet/"
    FLASH_PATH="//cdnjs.cloudflare.com/ajax/libs/hydna/$VERSION/bridge.swf"
   ;;
  "bower" )
    echo "Configure for 'bower' environment"
    OBJECT_NAME="HydnaChannel"
    COMET_PATH="/comet/"
    FLASH_PATH="bridge.swf"
    ;;
  * )
    echo "unknown environment '$OPTARG'"
    exit -1
esac
}


# translate long options to short
# Note: This enable long options but disable "--?*" in $OPTARG, or disable long options after  "--" in option fields.
for ((i=1;$#;i++)) ; do
    case "$1" in
        --) EndOpt=1 ;;
        --disable-ws) ((EndOpt)) && args[$i]="$1"  || args[$i]="-W";;
        --disable-flash) ((EndOpt)) && args[$i]="$1"  || args[$i]="-F";;
        --disable-comet) ((EndOpt)) && args[$i]="$1"  || args[$i]="-C";;
        --version) ((EndOpt)) && args[$i]="$1"  || args[$i]="-V";;
        # default case : short option use the first char of the long option:
        --?*) ((EndOpt)) && args[$i]="$1"  || args[$i]="-${1:2:1}";;
        # pass through anything else:
        *) args[$i]="$1" ;;
    esac
    shift
done
# reset the translated args
set -- "${args[@]}"

# now we can process with getopt
while getopts ":hvVc:Cf:FWe:" opt; do
    case $opt in
        h)  usage ;;
        v)  VERBOSE=true ;;
        V)  echo $VERSION ; exit ;;
        C)  DISABLE_COMET=true ;;
        F)  DISABLE_FLASH=true ;;
        W)  DISABLE_WS=true ;;
        t)  TEST_SUITE=true ;;
        c)  COMET_PATH=$OPTARG ;;
        e)  confenvironment -1 ;;
        \?) echo "unrecognized option: -$opt" ; usage -1 ;;
        :)
        echo "option -$OPTARG requires an argument"
        usage -1
        ;;
    esac
done

shift $((OPTIND-1))
[[ "$1" == "--" ]] && shift


if [ ! -x $NODE ]
  then
    echo "Node.js is required in order to build"
    exit 1
  else
    echo "Node.js found at '$NODE'"
fi

if [ ! -x $UGLIFY ]
	then
    echo "Uglify-js is required in order to build. Install via 'npm install uglify-js"
    exit 1
  else
    echo "Uglify-js found at '$UGLIFY'"
fi


FILES=()

FILES+=(\"$SRC_DIR/globals.js\")
FILES+=(\"$SRC_DIR/base64.js\")
FILES+=(\"$SRC_DIR/nexttick.js\")
FILES+=(\"$SRC_DIR/uri.js\")
FILES+=(\"$SRC_DIR/encoding.js\")

FILES+=(\"$SRC_DIR/events.js\")
FILES+=(\"$SRC_DIR/connection.js\")
FILES+=(\"$SRC_DIR/channel.js\")

if $DISABLE_WS ; then
  echo "Ignoring websocket transport files..."
else
  FILES+=(\"$SRC_DIR/websocket.js\")
fi


if $DISABLE_FLASH ; then
  echo "Ignoring flash transport files..."
else
  FILES+=(\"$SRC_DIR/flash.js\")
fi


if $DISABLE_COMET ; then
  echo "Ignoring comet transport files..."
else
  FILES+=(\"$SRC_DIR/comet.js\")
fi

FILES+=(\"$SRC_DIR/exports.js\")

BAR=""

for index in ${!FILES[*]}
do
    BAR="$BAR,${FILES[$index]}"
done

mkdir -p $BUILD_DIR

echo "{" > $BUILD_CFG
echo \"VERSION\": \"$VERSION\", >> $BUILD_CFG
echo \"uglify\": \"$UGLIFY\", >> $BUILD_CFG
echo \"workingdir\": \"$WORKINGDIR\", >> $BUILD_CFG
echo \"OBJECT_NAME\": \"$OBJECT_NAME\", >> $BUILD_CFG
echo \"COMET_PATH\": \"$COMET_PATH\", >> $BUILD_CFG
echo \"FLASH_PATH\": \"$FLASH_PATH\", >> $BUILD_CFG
echo \"DISABLE_WEBSOCKET\": $DISABLE_WS, >> $BUILD_CFG
echo \"DISABLE_FLASH\": $DISABLE_FLASH, >> $BUILD_CFG
echo \"DISABLE_COMET\": $DISABLE_COMET, >> $BUILD_CFG
echo \"files\":[${BAR:1}] >> $BUILD_CFG
echo } >> $BUILD_CFG

unset FILES

echo "Configuration was successful"