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/*******************************************************************************
* Copyright (c) 2010, 2015 Red Hat Inc.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Red Hat Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.autotools.core;
import java.io.IOException;
import java.io.OutputStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.cdt.autotools.core.AutotoolsPlugin;
import org.eclipse.cdt.core.ICommandLauncher;
import org.eclipse.cdt.remote.core.RemoteCommandLauncher;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.ui.IMarkerResolution;
public class PkgconfigErrorResolution implements IMarkerResolution {
private static class ConsoleOutputStream extends OutputStream {
protected StringBuffer fBuffer;
public ConsoleOutputStream() {
fBuffer= new StringBuffer();
}
public synchronized String readBuffer() {
String buf = fBuffer.toString();
fBuffer.setLength(0);
return buf;
}
@Override
public synchronized void write(int c) {
byte ascii[] = new byte[1];
ascii[0] = (byte) c;
fBuffer.append(new String(ascii));
}
@Override
public synchronized void write(byte[] b, int off, int len) {
fBuffer.append(new String(b, off, len));
}
}
private static final String PKG_UPDATE_MSG = "UpdatePackage.msg"; //$NON-NLS-1$
private String pkgName;
public PkgconfigErrorResolution(String pkgconfigRequirement) {
// Get the pkgconfig package name from the requirement message.
Pattern p = Pattern.compile("(.*?)[\\s,>,<,=].*");
Matcher m = p.matcher(pkgconfigRequirement);
if (m.matches()) {
pkgName = m.group(1);
}
}
@Override
public String getLabel() {
return AutotoolsPlugin.getFormattedString(PKG_UPDATE_MSG, new String[] {pkgName});
}
@Override
public void run(IMarker marker) {
// We have a pkgconfig library missing requirement for "pkg". Now, "pkg" does
// not necessarily match the actual system package needed to be updated (e.g.
// gtk+-2.0 is the name of the pkgconfig file for gtk2).
// We can try and find the "pkg.pc" file and look at what real package provides
// it. Updating that package will update the actual package in question as well
// as updating the pkgconfig info for "pkg".
// Note, that we won't have any pkgconfig path settings from the configure call
// so we can't handle the situation where the user doesn't have pkgconfig files
// stored in the usual place.
IPath pkgconfigPath =
new Path("/usr/lib/pkgconfig").append(pkgName+".pc"); //$NON-NLS-1$ //$NON-NLS-2$
// Get a launcher for the config command
RemoteCommandLauncher launcher = new RemoteCommandLauncher();
IPath commandPath = new Path("rpm"); //$NON-NLS-1$
String[] commandArgs =
new String[] {"-q", //$NON-NLS-1$
"--queryformat", //$NON-NLS-1$
"%{NAME}", //$NON-NLS-1$
"--whatprovides", //$NON-NLS-1$
pkgconfigPath.toOSString()};
try {
// Use CDT launcher to run rpm to query the package that provides
// the pkgconfig .pc file for the package in question.
ConsoleOutputStream output = new ConsoleOutputStream();
Process proc = launcher.execute(commandPath, commandArgs, null,
new Path("."), new NullProgressMonitor());
if (proc != null) {
try {
// Close the input of the process since we will never write to
// it
proc.getOutputStream().close();
} catch (IOException e) {
}
if (launcher.waitAndRead(output, output, new NullProgressMonitor())
!= ICommandLauncher.OK) {
AutotoolsPlugin.logErrorMessage(launcher.getErrorMessage());
} else {
String result = output.readBuffer();
if (!result.startsWith("error:")) //$NON-NLS-1$
System.out.println("need to execute update of " + result);
}
}
} catch (CoreException e) {
e.printStackTrace();
}
}
}
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