Name: closure-compiler
Owner: Scala.js
Description: A JavaScript checker and optimizer.
Created: 2016-06-27 08:09:10.0
Updated: 2016-08-07 22:14:55.0
Pushed: 2016-07-08 09:07:23.0
Homepage: https://developers.google.com/closure/compiler/
Size: 108102
Language: Java
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The Closure Compiler is a tool for making JavaScript download and run faster. It is a true compiler for JavaScript. Instead of compiling from a source language to machine code, it compiles from JavaScript to better JavaScript. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls.
Note: The Closure Compiler requires Java 7 or higher.
Download Maven.
Add sonatype snapshots repository to ~/.m2/settings.xml
:
file>
>allow-snapshots</id>
<activation><activeByDefault>true</activeByDefault></activation>
positories>
repository>
<id>snapshots-repo</id>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
<releases><enabled>false</enabled></releases>
<snapshots><enabled>true</enabled></snapshots>
/repository>
epositories>
ofile>
Run mvn -DskipTests
(omit the -DskipTests
if you want to run all the
unit tests too).
This will produce a jar file called target/closure-compiler-1.0-SNAPSHOT.jar
.
File > New > Project ...
and create a Java Project. Give
the project a name.Create project from existing source
and choose the root of the
checked-out source tree as the existing directory.build.xml
file. You will see all the build rules in
the Outline pane. Run the jar
rule to build the compiler in
build/compiler.jar
.On the command line, at the root of this project, type
-jar build/compiler.jar
This starts the compiler in interactive mode. Type
x = 17 + 25;
then hit “Enter”, then hit “Ctrl-Z” (on Windows) or “Ctrl-D” (on Mac or Linux) and “Enter” again. The Compiler will respond:
x=42;
The Closure Compiler has many options for reading input from a file, writing output to a file, checking your code, and running optimizations. To learn more, type
-jar compiler.jar --help
More detailed information about running the Closure Compiler is available in the documentation.
If you have multiple scripts, you should compile them all together with one compile command.
-jar compiler.jar --js_output_file=out.js in1.js in2.js in3.js ...
You can also use minimatch-style globs.
cursively include all js files in subdirs
-jar compiler.jar --js_output_file=out.js 'src/**.js'
cursively include all js files in subdirs, excluding test files.
e single-quotes, so that bash doesn't try to expand the '!'
-jar compiler.jar --js_output_file=out.js 'src/**.js' '!**_test.js'
The Closure Compiler will concatenate the files in the order they're passed at the command line.
If you're using globs or many files, you may start to run into problems with managing dependencies between scripts. In this case, you should use the Closure Library. It contains functions for enforcing dependencies between scripts, and Closure Compiler will re-order the inputs automatically.
Copyright 2009 The Closure Compiler Authors.
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Code Path |
src/com/google/javascript/rhino , test/com/google/javascript/rhino
|
URL | http://www.mozilla.org/rhino |
Version | 1.5R3, with heavy modifications |
License | Netscape Public License and MPL / GPL dual license |
Description | A partial copy of Mozilla Rhino. Mozilla Rhino is an implementation of JavaScript for the JVM. The JavaScript parse tree data structures were extracted and modified significantly for use by Google's JavaScript compiler. |
Local Modifications | The packages have been renamespaced. All code not relevant to the parse tree has been removed. A JsDoc parser and static typing system have been added. |
Code Path | lib/args4j.jar |
URL | https://args4j.dev.java.net/ |
Version | 2.0.26 |
License | MIT |
Description | args4j is a small Java class library that makes it easy to parse command line options/arguments in your CUI application. |
Local Modifications | None |
Code Path | lib/guava.jar |
URL | https://github.com/google/guava |
Version | 20.0 |
License | Apache License 2.0 |
Description | Google's core Java libraries. |
Local Modifications | None |
Code Path | lib/jsr305.jar |
URL | http://code.google.com/p/jsr-305/ |
Version | svn revision 47 |
License | BSD License |
Description | Annotations for software defect detection. |
Local Modifications | None |
Code Path | lib/junit.jar |
URL | http://sourceforge.net/projects/junit/ |
Version | 4.11 |
License | Common Public License 1.0 |
Description | A framework for writing and running automated tests in Java. |
Local Modifications | None |
Code Path | lib/protobuf-java.jar |
URL | https://github.com/google/protobuf |
Version | 2.5.0 |
License | New BSD License |
Description | Supporting libraries for protocol buffers, an encoding of structured data. |
Local Modifications | None |
Code Path | lib/truth.jar |
URL | https://github.com/google/truth |
Version | 0.24 |
License | Apache License 2.0 |
Description | Assertion/Proposition framework for Java unit tests |
Local Modifications | None |
Code Path |
lib/ant.jar , lib/ant-launcher.jar
|
URL | http://ant.apache.org/bindownload.cgi |
Version | 1.8.1 |
License | Apache License 2.0 |
Description | Ant is a Java based build tool. In theory it is kind of like "make" without make's wrinkles and with the full portability of pure java code. |
Local Modifications | None |
Code Path | lib/gson.jar |
URL | https://github.com/google/gson |
Version | 2.2.4 |
License | Apache license 2.0 |
Description | A Java library to convert JSON to Java objects and vice-versa |
Local Modifications | None |
Code Path | contrib/nodejs |
URL | https://github.com/dcodeIO/node.js-closure-compiler-externs |
Version | e891b4fbcf5f466cc4307b0fa842a7d8163a073a |
License | Apache 2.0 license |
Description | Type contracts for NodeJS APIs |
Local Modifications | Substantial changes to make them compatible with NpmCommandLineRunner. |