package com.github.mcheely.maven.requirejs;
import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.ExecuteException;
import org.mozilla.javascript.ErrorReporter;
import java.io.File;
import java.io.IOException;
public class NodeJsRunner implements Runner {
private static final String[] nodeCommands = new String[]{"node", "nodejs"};
private String nodeJsFile;
public NodeJsRunner(String nodeJsFile) {
this.nodeJsFile = nodeJsFile;
}
public static String detectNodeCommand() {
for (String nodeCmd : nodeCommands) {
CommandLine cmdLine = CommandLine.parse(nodeCmd);
cmdLine.addArguments("--version");
DefaultExecutor executor = new DefaultExecutor();
try {
if (executor.execute(cmdLine) == 0) {
return nodeCmd;
}
} catch (IOException e) {
//Keep testing.
}
}
return null;
}
@Override
public ExitStatus exec(File mainScript, String[] args, ErrorReporter reporter) {
ExitStatus exitStatus = new ExitStatus();
try {
boolean result = executeScript(nodeJsFile, mainScript.getAbsolutePath(), args);
exitStatus.setExitCode(result?0:1);
} catch (IOException e) {
exitStatus.setExitCode(1);
}
return exitStatus;
}
private boolean executeScript(String nodeJsFile, String scriptName, String[] params) throws IOException {
CommandLine cmdLine = CommandLine.parse(nodeJsFile);
cmdLine.addArgument(scriptName, false);
cmdLine.addArguments(params, false);
DefaultExecutor executor = new DefaultExecutor();
try {
return executor.execute(cmdLine) == 0;
} catch (ExecuteException e) {
return e.getExitValue() == 0;
}
}
}