/*******************************************************************************
* Copyright (c) 2005, 2009 Red Hat, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.rpm.core.utils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.preferences.DefaultScope;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.linuxtools.rpm.core.IRPMConstants;
/**
* Utility class for executing queries on existing binary and source RPMs
*
*/
public final class RPMQuery {
private static final String QF = "--qf"; //$NON-NLS-1$
private static final String QP = "-qp"; //$NON-NLS-1$
private RPMQuery() {
}
public static String getHeaderInfo(IFile rpmFile) {
return query(rpmFile, "-qip"); //$NON-NLS-1$
}
public static String getChangelog(IFile rpmFile) {
return query(rpmFile, "--changelog", QP); //$NON-NLS-1$
}
public static String getArch(IFile rpmFile) {
return query(rpmFile, QF, "%{ARCH}", QP); //$NON-NLS-1$
}
public static String getPlatform(IFile rpmFile) {
return query(rpmFile, QF, "%{PLATFORM}", QP); //$NON-NLS-1$
}
public static String getOS(IFile rpmFile) {
return query(rpmFile, QF, "%{OS}", QP); //$NON-NLS-1$
}
public static String getBuildHost(IFile rpmFile) {
return query(rpmFile, QF, "%{BUILDHOST}", QP); //$NON-NLS-1$
}
public static String getBuildTime(IFile rpmFile) {
return query(rpmFile, QF, "%{BUILDTIME:date}", QP); //$NON-NLS-1$
}
public static String getPreInstallScript(IFile rpmFile) {
return query(rpmFile, QF, "%{PREIN}", QP); //$NON-NLS-1$
}
public static String getPostInstallScript(IFile rpmFile) {
return query(rpmFile, QF, "%{POSTIN}", QP); //$NON-NLS-1$
}
public static String getPreUninstallScript(IFile rpmFile) {
return query(rpmFile, QF, "%{PREUN}", QP); //$NON-NLS-1$
}
public static String getPostUninstallScript(IFile rpmFile) {
return query(rpmFile, QF, "%{POSTUN}", QP); //$NON-NLS-1$
}
public static String getProvides(IFile rpmFile) {
return query(rpmFile, "-qlp"); //$NON-NLS-1$
}
private static String query(IFile rpmFile, String... args) {
IEclipsePreferences node = DefaultScope.INSTANCE.getNode(IRPMConstants.RPM_CORE_ID);
String rpmCmd = node.get(IRPMConstants.RPM_CMD, ""); //$NON-NLS-1$
List<String> command = new ArrayList<>();
command.add(rpmCmd);
command.addAll(Arrays.asList(args));
command.add(rpmFile.getLocation().toOSString());
try {
return Utils.runCommandToString(command.toArray(new String[command.size()]));
} catch (IOException e) {
// ignore - nothing that deserves showing to the user
}
return ""; //$NON-NLS-1$
}
/**
* Uses RPM to eval the given string.
* @param toEval The string to be evaled.
* @return The value of the evaluation.
* @throws CoreException If there is IOException when calling.
*/
public static String eval(String toEval) throws CoreException {
return eval(null, toEval);
}
/**
* Uses RPM to eval the given string.
* @param project Underlying project.
* @param toEval The string to be evaled.
* @return The value of the evaluation.
* @throws CoreException If there is IOException when calling.
* @since 2.1
*/
public static String eval(IProject project, String toEval) throws CoreException {
IEclipsePreferences node = DefaultScope.INSTANCE.getNode(IRPMConstants.RPM_CORE_ID);
String rpmCmd = node.get(IRPMConstants.RPM_CMD, ""); //$NON-NLS-1$
List<String> command = new ArrayList<>();
command.add(rpmCmd);
command.add("--eval"); //$NON-NLS-1$
command.add(toEval);
try {
return Utils.runCommandToString(project, command.toArray(new String[command.size()]));
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, IRPMConstants.RPM_CORE_ID, e.getMessage(), e));
}
}
}