/*
* 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.platform;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.VirtualFile;
import net.ishchenko.idea.nginx.NginxBundle;
import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.Executor;
import org.apache.commons.exec.PumpStreamHandler;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by IntelliJ IDEA.
* User: Max
* Date: 01.08.2009
* Time: 0:22:46
*/
public class NginxCompileParametersExtractor {
// (?:.*\n)? is added for mac. -V output has one extra line there.
private static final Pattern OUTPUT_PATTERN = Pattern.compile("nginx version: nginx/([\\d\\.]+)\r?\n(?:.*\n)?configure arguments: (.*)");
public static NginxCompileParameters extract(VirtualFile from) throws PlatformDependentTools.ThisIsNotNginxExecutableException {
NginxCompileParameters result = new NginxCompileParameters();
Executor executor = new DefaultExecutor();
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
executor.setStreamHandler(new PumpStreamHandler(os, os));
executor.execute(CommandLine.parse(from.getPath() + " -V"));
} catch (IOException e) {
throw new PlatformDependentTools.ThisIsNotNginxExecutableException(e);
}
String output = os.toString();
Matcher matcher = OUTPUT_PATTERN.matcher(output);
if (matcher.find()) {
String version = matcher.group(1);
String params = matcher.group(2);
result.setVersion(version);
Iterable<String> namevalues = StringUtil.split(params, " ");
for (String namevalue : namevalues) {
int eqPosition = namevalue.indexOf('=');
if (eqPosition == -1) {
handleFlag(result, namevalue);
} else {
handleNameValue(result, namevalue.substring(0, eqPosition), namevalue.substring(eqPosition + 1));
}
}
} else {
throw new PlatformDependentTools.ThisIsNotNginxExecutableException(NginxBundle.message("run.configuration.outputwontmatch"));
}
return result;
}
private static void handleNameValue(NginxCompileParameters result, String name, String value) {
if (name.equals("--conf-path")) {
result.setConfigurationPath(value);
} else if (name.equals("--pid-path")) {
result.setPidPath(value);
} else if (name.equals("--prefix")) {
result.setPrefix(value);
} else if (name.equals("--http-log-path")) {
result.setHttpLogPath(value);
} else if (name.equals("--error-log-path")) {
result.setErrorLogPath(value);
}
}
private static void handleFlag(NginxCompileParameters result, String flag) {
//no flags to handle at the moment
}
}