/*
* Copyright 2009 Max Ishchenko
*
* 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 net.ishchenko.idea.nginx.run;
import com.intellij.execution.ExecutionManager;
import com.intellij.execution.process.*;
import com.intellij.execution.ui.ConsoleView;
import com.intellij.execution.ui.ConsoleViewContentType;
import com.intellij.execution.ui.RunContentDescriptor;
import com.intellij.execution.ui.RunContentManager;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.LocalFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
import net.ishchenko.idea.nginx.NginxBundle;
import net.ishchenko.idea.nginx.configurator.NginxServerDescriptor;
import net.ishchenko.idea.nginx.platform.PlatformDependentTools;
import org.jetbrains.annotations.Nullable;
import java.io.File;
import java.io.IOException;
/**
* Created by IntelliJ IDEA.
* User: Max
* Date: 25.07.2009
* Time: 4:15:37
*/
public class NginxReloadAction extends AnAction {
public void actionPerformed(final AnActionEvent event) {
Project project = PlatformDataKeys.PROJECT.getData(event.getDataContext());
FileDocumentManager.getInstance().saveAllDocuments(); //todo: save configs only
RunContentDescriptor runContentDescriptor = getRunContentDescriptor(event);
if (runContentDescriptor != null) {
if (runContentDescriptor.getProcessHandler() == null) {
return;
}
final ConsoleView console = (ConsoleView) runContentDescriptor.getExecutionConsole();
try {
//the action will be disabled when there's no process handler, so no npe here. i hope...
NginxProcessHandler processHandler = (NginxProcessHandler) runContentDescriptor.getProcessHandler();
NginxServerDescriptor descriptor = processHandler.getDescriptor();
//evil user may have deleted either server configuration
validateDescriptor(descriptor);
//it can be omitted for windows, but in linux we see silence if configuration file is invalid on reload
//as reload is done by SIGHUP
testConfig(descriptor, console, project);
doReload(descriptor, console, project);
} catch (ReloadException e) {
console.print(e.getMessage() + "\n", ConsoleViewContentType.ERROR_OUTPUT);
} catch (Exception e) {
console.print(e.getClass() + " " + e.getMessage() + "\n", ConsoleViewContentType.ERROR_OUTPUT);
}
}
}
private void validateDescriptor(NginxServerDescriptor descriptor) throws ReloadException {
VirtualFile executable = LocalFileSystem.getInstance().findFileByPath(descriptor.getExecutablePath());
if (executable == null) {
throw new ReloadException(NginxBundle.message("run.error.badpath"));
}
}
private void testConfig(final NginxServerDescriptor descriptor, final ConsoleView console, Project project) throws ReloadException, IOException {
VirtualFile executableFile = LocalFileSystem.getInstance().findFileByPath(descriptor.getExecutablePath());
PlatformDependentTools pdt = ApplicationManager.getApplication().getComponent(PlatformDependentTools.class);
String[] testCommand = pdt.getTestCommand(descriptor);
int exitValue = runAndGetExitValue(testCommand, new File(executableFile.getParent().getPath()), console);
if (exitValue != 0) {
throw new ReloadException(NginxBundle.message("run.validationfailed"));
}
}
private void doReload(NginxServerDescriptor descriptor, ConsoleView console, Project project) throws ReloadException, IOException {
VirtualFile executableFile = LocalFileSystem.getInstance().findFileByPath(descriptor.getExecutablePath());
PlatformDependentTools pdt = ApplicationManager.getApplication().getComponent(PlatformDependentTools.class);
String[] reloadCommand = pdt.getReloadCommand(descriptor);
int exitValue = runAndGetExitValue(reloadCommand, new File(executableFile.getParent().getPath()), console);
if (exitValue != 0) {
throw new ReloadException(NginxBundle.message("run.validationfailed"));
}
}
private int runAndGetExitValue(String[] testCommand, File dir, final ConsoleView console) throws IOException {
ProcessBuilder builder = new ProcessBuilder();
builder.command(testCommand);
builder.directory(dir);
OSProcessHandler osph = new OSProcessHandler(builder.start(), StringUtil.join(testCommand, " "));
osph.addProcessListener(new ProcessAdapter() {
@Override
public void onTextAvailable(final ProcessEvent event, Key outputType) {
ConsoleViewContentType contentType = ConsoleViewContentType.SYSTEM_OUTPUT;
if (outputType == ProcessOutputTypes.STDERR) {
contentType = ConsoleViewContentType.ERROR_OUTPUT;
}
console.print(event.getText(), contentType);
}
});
osph.startNotify();
osph.waitFor();
osph.destroyProcess(); //is that needed if waitFor has returned?
return osph.getProcess().exitValue();
}
@Override
public void update(AnActionEvent e) {
e.getPresentation().setEnabled(isEnabled(e));
}
private boolean isEnabled(AnActionEvent e) {
ProcessHandler processHandler = getProcessHandler(e);
return processHandler != null && !(processHandler.isProcessTerminated() || processHandler.isProcessTerminating());
}
@Nullable
private RunContentDescriptor getRunContentDescriptor(AnActionEvent e) {
//magic copied from com.intellij.execution.actions.StopAction
RunContentDescriptor runContentDescriptor = RunContentManager.RUN_CONTENT_DESCRIPTOR.getData(e.getDataContext());
if (runContentDescriptor == null) {
Project project = PlatformDataKeys.PROJECT.getData(e.getDataContext());
if (project != null) {
runContentDescriptor = ExecutionManager.getInstance(project).getContentManager().getSelectedContent();
}
}
return runContentDescriptor;
}
@Nullable
private ProcessHandler getProcessHandler(AnActionEvent e) {
RunContentDescriptor rcd = getRunContentDescriptor(e);
return rcd != null ? rcd.getProcessHandler() : null;
}
private static class ReloadException extends Exception {
private ReloadException(String message) {
super(message);
}
}
}