// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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.
package com.google.devtools.build.java.turbine;
import com.google.devtools.build.java.turbine.javac.JavacTurbine;
import com.google.devtools.build.java.turbine.javac.JavacTurbine.Result;
import com.google.turbine.diag.TurbineError;
import com.google.turbine.main.Main;
import com.google.turbine.options.TurbineOptions;
import com.google.turbine.options.TurbineOptionsParser;
import java.io.IOException;
import java.util.Arrays;
/**
* A turbine entry point that falls back to javac-turbine for failures, and for compilations that
* use API-generating annotation processors.
*/
public class Turbine {
public static void main(String[] args) throws Exception {
System.exit(new Turbine("An exception has occurred in turbine.").compile(args));
}
private final String bugMessage;
public Turbine(String bugMessage) {
this.bugMessage = bugMessage;
}
public int compile(String[] args) throws IOException {
return compile(TurbineOptionsParser.parse(Arrays.asList(args)));
}
public int compile(TurbineOptions options) throws IOException {
Throwable turbineCrash = null;
try {
if (Main.compile(options)) {
return 0;
}
// fall back to javac for API-generating processors
} catch (TurbineError e) {
switch (e.kind()) {
case TYPE_PARAMETER_QUALIFIER:
System.err.println(e.getMessage());
System.exit(1);
break;
default:
turbineCrash = e;
break;
}
} catch (Throwable t) {
turbineCrash = t;
}
Result result = JavacTurbine.compile(options);
if (result == Result.OK_WITH_REDUCED_CLASSPATH && turbineCrash != null) {
System.err.println(bugMessage);
turbineCrash.printStackTrace();
result = Result.ERROR;
}
return result.exitCode();
}
}