public void execute() {
if (this.outputFile == null) {
throw new BuildException("outputFile attribute must be set");
}
Compiler.setLoggingLevel(Level.OFF);
CompilerOptions options = createCompilerOptions();
Compiler compiler = createCompiler(options);
JSSourceFile[] externs = findExternFiles();
JSSourceFile[] sources = findSourceFiles();
log("Compiling " + sources.length + " file(s) with " + externs.length + " extern(s)");
Result result = compiler.compile(externs, sources, options);
if (result.success) {
writeResult(compiler.toSource());
} else {
throw new BuildException("Compilation failed.");
}
}
/**
* Minimize the output using google closure compiler.
*
* @param output The input file to minimize.
* @throws IOException If something goes wrong.
* @throws MojoFailureException If something goes wrong.
*/
private void minimize(final File output) throws IOException, MojoFailureException {
final CompilerOptions options = new CompilerOptions();
options.setCodingConvention(new ClosureCodingConvention());
options.setOutputCharset("UTF-8");
options.setWarningLevel(DiagnosticGroups.CHECK_VARIABLES, CheckLevel.WARNING);
CompilationLevel.SIMPLE_OPTIMIZATIONS.setOptionsForCompilationLevel(options);
Compiler.setLoggingLevel(Level.SEVERE);
Compiler compiler = new Compiler();
compiler.disableThreads();
compiler.initOptions(options);
Result result =
compiler.compile(
Collections.<SourceFile>emptyList(),
Arrays.asList(SourceFile.fromFile(output)),
options);
if (result.success) {
FileUtils.fileWrite(output, compiler.toSource());
} else {
JSError[] errors = result.errors;
throw new MojoFailureException(errors[0].toString());
}
}
@Override
public void execute() {
if (this.outputFile == null) {
throw new BuildException("outputFile attribute must be set");
}
Compiler.setLoggingLevel(Level.OFF);
CompilerOptions options = createCompilerOptions();
Compiler compiler = createCompiler(options);
List<SourceFile> externs = findExternFiles();
List<SourceFile> sources = findSourceFiles();
if (isStale() || forceRecompile) {
log("Compiling " + sources.size() + " file(s) with " + externs.size() + " extern(s)");
Result result = compiler.compile(externs, sources, options);
if (result.success) {
StringBuilder source = new StringBuilder(compiler.toSource());
if (this.outputWrapperFile != null) {
try {
this.outputWrapper = Files.toString(this.outputWrapperFile, UTF_8);
} catch (Exception e) {
throw new BuildException("Invalid output_wrapper_file specified.");
}
}
if (this.outputWrapper != null) {
int pos = -1;
pos = this.outputWrapper.indexOf(CommandLineRunner.OUTPUT_MARKER);
if (pos > -1) {
String prefix = this.outputWrapper.substring(0, pos);
source.insert(0, prefix);
// end of outputWrapper
int suffixStart = pos + CommandLineRunner.OUTPUT_MARKER.length();
String suffix = this.outputWrapper.substring(suffixStart);
source.append(suffix);
} else {
throw new BuildException(
"Invalid output_wrapper specified. "
+ "Missing '"
+ CommandLineRunner.OUTPUT_MARKER
+ "'.");
}
}
if (result.sourceMap != null) {
flushSourceMap(result.sourceMap);
source.append(System.getProperty("line.separator"));
source.append("//@ sourceMappingURL=" + sourceMapOutputFile.getName());
}
writeResult(source.toString());
} else {
throw new BuildException("Compilation failed.");
}
} else {
log("None of the files changed. Compilation skipped.");
}
}
