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comparison bin/jsshrink.sh @ 0:4681f974d28b

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vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:52:31 -0500
parents
children bf99236cc5cd
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-1:000000000000 0:4681f974d28b
1 #!/bin/sh
2 PWD=`dirname "$0"`
3 JS_DIR="$PWD/../program/js"
4 JAR_DIR='/tmp'
5 LANG_IN='ECMASCRIPT3'
6 # latest version requires Java 7, we'll use an older one
7 #CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-latest.zip'
8 CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-20131014.zip'
9
10 do_shrink() {
11 rm -f "$2"
12 # copy the first comment block with license information for LibreJS
13 grep -q '@lic' $1 && sed -n '/\/\*/,/\*\// { p; /\*\//q; }' $1 > $2
14 java -jar $JAR_DIR/compiler.jar --compilation_level=SIMPLE_OPTIMIZATIONS --js="$1" --language_in="$3" >> $2
15 }
16
17 if [ ! -d "$JS_DIR" ]; then
18 echo "Directory $JS_DIR not found."
19 exit 1
20 fi
21
22 if [ ! -w "$JAR_DIR" ]; then
23 JAR_DIR=$PWD
24 fi
25
26 if java -version >/dev/null 2>&1; then
27 :
28 else
29 echo "Java not found. Please ensure that the 'java' program is in your PATH."
30 exit 1
31 fi
32
33 if [ ! -r "$JAR_DIR/compiler.jar" ]; then
34 if which wget >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
35 wget "$CLOSURE_COMPILER_URL" -O "/tmp/$$.zip"
36 elif which curl >/dev/null 2>&1 && which unzip >/dev/null 2>&1; then
37 curl "$CLOSURE_COMPILER_URL" -o "/tmp/$$.zip"
38 else
39 echo "Please download $CLOSURE_COMPILER_URL and extract compiler.jar to $JAR_DIR/."
40 exit 1
41 fi
42 (cd $JAR_DIR && unzip "/tmp/$$.zip" "compiler.jar")
43 rm -f "/tmp/$$.zip"
44 fi
45
46 # compress single file from argument
47 if [ $# -gt 0 ]; then
48 JS_DIR=`dirname "$1"`
49 JS_FILE="$1"
50
51 if [ $# -gt 1 ]; then
52 LANG_IN="$2"
53 fi
54
55 echo "Shrinking $JS_FILE"
56 minfile=`echo $JS_FILE | sed -e 's/\.js$/\.min\.js/'`
57 do_shrink "$JS_FILE" "$minfile" "$LANG_IN"
58 exit
59 fi
60
61 DIRS="$PWD/../program/js $PWD/../skins/* $PWD/../plugins/* $PWD/../plugins/*/skins/*"
62 # default: compress application scripts
63 for dir in $DIRS; do
64 for file in $dir/*.js; do
65 echo "$file" | grep -e '.min.js$' >/dev/null
66 if [ $? -eq 0 ]; then
67 continue
68 fi
69 if [ ! -f "$file" ]; then
70 continue
71 fi
72
73 echo "Shrinking $file"
74 minfile=`echo $file | sed -e 's/\.js$/\.min\.js/'`
75 do_shrink "$file" "$minfile" "$LANG_IN"
76 done
77 done