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1 #!/bin/sh
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2 PWD=`dirname "$0"`
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3 JS_DIR="$PWD/../program/js"
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4 JAR_DIR='/tmp'
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5 LANG_IN='ECMASCRIPT3'
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6 # latest version requires Java 7, we'll use an older one
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7 #CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-latest.zip'
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8 CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-20131014.zip'
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9
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10 do_shrink() {
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11 rm -f "$2"
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12 # copy the first comment block with license information for LibreJS
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13 grep -q '@lic' $1 && sed -n '/\/\*/,/\*\// { p; /\*\//q; }' $1 > $2
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14 java -jar $JAR_DIR/compiler.jar --compilation_level=SIMPLE_OPTIMIZATIONS --js="$1" --language_in="$3" >> $2
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15 }
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16
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17 if [ ! -d "$JS_DIR" ]; then
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18 echo "Directory $JS_DIR not found."
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19 exit 1
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20 fi
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21
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22 if [ ! -w "$JAR_DIR" ]; then
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23 JAR_DIR=$PWD
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24 fi
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25
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26 if java -version >/dev/null 2>&1; then
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27 :
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28 else
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29 echo "Java not found. Please ensure that the 'java' program is in your PATH."
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30 exit 1
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31 fi
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32
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33 if [ ! -r "$JAR_DIR/compiler.jar" ]; then
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34 if which wget >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
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35 wget "$CLOSURE_COMPILER_URL" -O "/tmp/$$.zip"
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36 elif which curl >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
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37 curl "$CLOSURE_COMPILER_URL" -o "/tmp/$$.zip"
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38 else
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39 echo "Please download $CLOSURE_COMPILER_URL and extract compiler.jar to $JAR_DIR/."
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40 exit 1
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41 fi
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42 (cd $JAR_DIR && unzip "/tmp/$$.zip" "compiler.jar")
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43 rm -f "/tmp/$$.zip"
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44 fi
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45
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46 # compress single file from argument
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47 if [ $# -gt 0 ]; then
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48 JS_DIR=`dirname "$1"`
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49 JS_FILE="$1"
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50
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51 if [ $# -gt 1 ]; then
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52 LANG_IN="$2"
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53 fi
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54
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55 echo "Shrinking $JS_FILE"
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56 minfile=`echo $JS_FILE | sed -e 's/\.js$/\.min\.js/'`
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57 do_shrink "$JS_FILE" "$minfile" "$LANG_IN"
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58 exit
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59 fi
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60
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61 DIRS="$PWD/../program/js $PWD/../skins/* $PWD/../plugins/* $PWD/../plugins/*/skins/*"
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62 # default: compress application scripts
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63 for dir in $DIRS; do
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64 for file in $dir/*.js; do
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65 echo "$file" | grep -e '.min.js$' >/dev/null
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66 if [ $? -eq 0 ]; then
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67 continue
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68 fi
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69 if [ ! -f "$file" ]; then
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70 continue
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71 fi
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72
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73 echo "Shrinking $file"
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74 minfile=`echo $file | sed -e 's/\.js$/\.min\.js/'`
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75 do_shrink "$file" "$minfile" "$LANG_IN"
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76 done
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77 done
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