emcc-cvmfs

#!/bin/bash

set -e

SRC_DIR="$( cd "$( dirname "$0" )" && pwd )"
FS_DIR=$SRC_DIR/fs
SWCACHE_DIR=$SRC_DIR/sw-cache

EMC=emcc
if [ $1 == "em++" ]; then
  EMC=em++
  shift
fi

OUTPUT_DIR=""
OUTPUT_JS="a.out.js"

SWCACHE=0
SWCACHE_OPTS=""

i=1
while [ "$i" -le "$#" ]; do
  eval "arg=\${$i}"

  if [[ $arg == "-o" ]]; then
    i=$((i + 1))
    eval "OUTPATH=\${$i}"
    OUTPUT_DIR=$(dirname $OUTPATH)
    OUTFILE=$(basename $OUTPATH)
    if [[ $OUTFILE == *.html || $OUTFILE == *.js ]]; then
      OUTPUT_JS=$OUTPUT_DIR/${OUTFILE%*.*}.js
    else
      echo "Please specify either an HTML or JavaScript output." && exit -1
    fi
  elif [[ $arg == "-swcache" ]]; then
    SWCACHE=1
    SWCACHE_OPTS="--pre-js $SWCACHE_DIR/sw-pre.js"
    set -- "${@:1:i-1}" "${@:i+1}" # clear ith argument
  fi

  i=$((i + 1))
done

$SRC_DIR/generate-cvmfs.sh

$EMC $* \
    --js-library $FS_DIR/library_cvmfs.js \
    --js-library $FS_DIR/library_fs.js \
    --pre-js $SRC_DIR/cvmfs.js \
    $SWCACHE_OPTS

if [ $SWCACHE -eq 1 ]; then
  cp $SWCACHE_DIR/sw-cache.js $OUTPUT_DIR
fi

OUTPUT_JS_TMP=$OUTPUT_JS.tmp
cat $SRC_DIR/third_party/sql.js > $OUTPUT_JS_TMP
cat $OUTPUT_JS >> $OUTPUT_JS_TMP
mv $OUTPUT_JS_TMP $OUTPUT_JS