build-scripts

#!/bin/bash

# TODO: find a better way to uglifyjs, remove comments and only keep minified script injection in memory

## inject INJECT.SCRIPT into all scripts

# We want to minify the injection script, but we only want to do it once (in case we're about to batch
# build scripts). Compare the dist version of script inject (should be the same) and also if the minified
# version exists; if not then uglify, otherwise use current min


# Source file js/SCRIPT.INJECTION.js doesn't exist?
if [ ! -f js/SCRIPT.INJECTION.js ]; then
    echo "js/SCRIPT.INJECTION.js doesn't exist. Exiting!";
    exit
fi

# Do we need to rebuild SCRIPT.INJECTION.min.js?
needToRebuild=0

# Dist file dist/js/SCRIPT.INJECTION.js doesn't exist?
if [ ! -f dist/js/SCRIPT.INJECTION.js ]; then
    echo "dist/js/SCRIPT.INJECTION.js doesn't exist. Copying over";
    needToRebuild=1;
fi

if [ ! -f dist/js/SCRIPT.INJECTION.min.js ]; then
    echo "dist/js/SCRIPT.INJECTION.min.js doesn't exist. Rebuilding";
    needToRebuild=1;
fi

# Hashes differ between js/SCRIPT.INJECTION.js and dist/js/SCRIPT.INJECTION.js?
uniques=$( cksum js/SCRIPT.INJECTION.js dist/js/SCRIPT.INJECTION.js | awk '{ print $1 }' | uniq | xargs | wc --words )
if [ "$uniques" -eq "2" ]; then
    echo "SCRIPT.INJECTION.js differs from dist/js/SCRIPT.INJECTION.js"
    needToRebuild=1;
fi
#  - Rebuild
if [ "$needToRebuild" == "1" ]; then
    echo "Rebuilding script injection"
    cp js/SCRIPT.INJECTION.js dist/js/SCRIPT.INJECTION.js;
    node_modules/.bin/uglifyjs dist/js/SCRIPT.INJECTION.js > dist/js/SCRIPT.INJECTION.min.js
    printf "\n" >> dist/js/SCRIPT.INJECTION.min.js
fi

BUILD_FILE=""

while [ $# -gt 0 ]; do
    case "$1" in
        --file ) BUILD_FILE="$2"; shift; shift ;;
        -- ) shift; break ;;
        * ) echo "Unknown option $1" ; exit ;;
    esac
done

if [ "$BUILD_FILE" != "" ]; then

    f="$BUILD_FILE"
    echo "Building script: $f"
    if grep -q "^\s*\/\*\s*SCRIPTINJECT\s*\*\/" $f
    then
        sed -i '/\/\*\s*SCRIPTINJECT\s*\*\//r dist/js/SCRIPT.INJECTION.min.js' $f
        sed -i '/\/\*\s*SCRIPTINJECT\s*\*\//d' $f
        echo "$f > $f"
    fi
else

    #START=$(date +%s.%N)
    for f in dist/js/scripts/*.js; do
        if grep -q "^\s*\/\*\s*SCRIPTINJECT\s*\*\/" $f
        then
            sed -i '/\/\*\s*SCRIPTINJECT\s*\*\//r dist/js/SCRIPT.INJECTION.min.js' $f
            sed -i '/\/\*\s*SCRIPTINJECT\s*\*\//d' $f
            echo "$f > $f"
        fi
    done
    #END=$(date +%s.%N)
    #DIFF=$(echo "$END - $START" | bc)
    #echo "$DIFF"

fi