1 #!/bin/bash

     2 #Requires java installed

     3 

     4 echo "*** SHRINKSAFE: running shrinksafe ***"

     5 

     6 SHRINKSAFE="../thirdparty/shrinksafe/shrinksafe.jar"

     7 

     8 echo "*** SHRINKSAFE: minifying javascript files ***"

     9 let SOURCE_FILE_SIZES=0

    10 let DEST_FILE_SIZES=0

    11 

    12 shrinksafe () {

    13   SOURCE_DIR=$1

    14   for dir in $(find $SOURCE_DIR -type d); do

    15     for i in $(find $dir/*.js -type f); do

    16       echo "SHRINKSAFE: Processing $i"

    17       CURRENT_SOURCE_FILE_SIZE=$(stat -c%s "$i")

    18       let SOURCE_FILE_SIZES=$SOURCE_FILE_SIZES+$CURRENT_SOURCE_FILE_SIZE

    19       mv $i $i.old.js

    20       java -jar $SHRINKSAFE $i.old.js > $i

    21       if [ "$?" == "1" ]; then

    22         echo "*** ATTENTION ***: $i minimization failed, copying plain file"

    23         cp $i.old.js $i

    24       fi

    25       rm $i.old.js

    26       CURRENT_DEST_FILE_SIZE=$(stat -c%s "$i")

    27       let DEST_FILE_SIZES=$DEST_FILE_SIZES+$CURRENT_DEST_FILE_SIZE

    28     done

    29   done

    30 }

    31 

    32 for DEST_DIR in "$@"; do

    33   shrinksafe $DEST_DIR

    34 done

    35 

    36 let COMPRESSION_RATE=$DEST_FILE_SIZES*100/$SOURCE_FILE_SIZES

    37 echo "*** SHRINKSAFE: Source file sizes: $SOURCE_FILE_SIZES, Dest file sizes: $DEST_FILE_SIZES"

    38 echo "*** SHRINKSAFE: Congratulations! You achieved $COMPRESSION_RATE% compression rate!"