bin/jsshrink.sh

   1 #!/bin/sh
   2 JS_DIR=`dirname "$0"`/../program/js
   3 CLOSURE_COMPILER_URL='http://closure-compiler.googlecode.com/files/compiler-latest.zip'
   4
   5 do_shrink() {
   6         rm -f "$2"
   7         java -jar compiler.jar --compilation_level=SIMPLE_OPTIMIZATIONS --js="$1" --js_output_file="$2"
   8 }
   9
  10 if [ ! -d "$JS_DIR" ]; then
  11         echo "Directory $JS_DIR not found."
  12         exit 1
  13 fi
  14
  15 if java -version >/dev/null 2>&1; then
  16         :
  17 else
  18         echo "Java not found. Please ensure that the 'java' program is in your PATH."
  19         exit 1
  20 fi
  21
  22 if [ ! -r "compiler.jar" ]; then
  23         if which wget >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
  24                 wget "$CLOSURE_COMPILER_URL" -O "/tmp/$$.zip"
  25         elif which curl >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
  26                 curl "$CLOSURE_COMPILER_URL" -o "/tmp/$$.zip"
  27         else
  28                 echo "Please download $CLOSURE_COMPILER_URL and extract compiler.jar to this directory."
  29                 exit 1
  30         fi
  31         unzip "/tmp/$$.zip" "compiler.jar"
  32         rm -f "/tmp/$$.zip"
  33 fi
  34
  35 for fn in app common googiespell list; do
  36         if [ -r "$JS_DIR/${fn}.js.src" ]; then
  37                 echo "$JS_DIR/${fn}.js.src already exists, not overwriting"
  38         else
  39                 mv "$JS_DIR/${fn}.js" "$JS_DIR/${fn}.js.src"
  40         fi
  41         echo "Shrinking $JS_DIR/${fn}.js"
  42         do_shrink "$JS_DIR/${fn}.js.src" "$JS_DIR/${fn}.js"
  43 done