bin/jsshrink.sh

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