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/*******************************************************************************
* Copyright (c) 2010, 2013 SAP AG.
* All rights reserved. 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:
* Mathias Kinzler (SAP AG) - initial implementation
*******************************************************************************/
package org.eclipse.egit.ui.internal.repository.tree;
import java.io.IOException;
import java.net.URISyntaxException;
import org.eclipse.egit.ui.internal.ResourcePropertyTester;
import org.eclipse.egit.ui.internal.expressions.AbstractPropertyTester;
import org.eclipse.egit.ui.internal.selection.SelectionRepositoryStateCache;
import org.eclipse.egit.ui.internal.trace.GitTraceLocation;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.util.LfsFactory;
/**
* Property Tester used for enabling/disabling of context menus in the Git
* Repositories View.
*/
public class RepositoriesViewPropertyTester extends AbstractPropertyTester {
@Override
public boolean test(Object receiver, String property, Object[] args,
Object expectedValue) {
if (!(receiver instanceof RepositoryTreeNode)) {
return false;
}
RepositoryTreeNode node = (RepositoryTreeNode) receiver;
Repository repository = node.getRepository();
if (repository == null) {
return false;
}
boolean value = internalTest(node, repository, property);
boolean trace = GitTraceLocation.PROPERTIESTESTER.isActive();
if (trace) {
GitTraceLocation
.getTrace()
.trace(GitTraceLocation.PROPERTIESTESTER.getLocation(),
"prop " + property + " of " + receiver + " = " + value + ", expected = " + expectedValue); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
return computeResult(expectedValue, value);
}
private boolean internalTest(RepositoryTreeNode node, Repository repository,
String property) {
if (property.equals("isBare")) { //$NON-NLS-1$
return repository.isBare();
}
if (property.equals("containsHead")) {//$NON-NLS-1$
return containsHead(repository);
}
if (ResourcePropertyTester.testRepositoryState(repository, property)) {
return true;
}
if (property.equals("isRefCheckedOut")) { //$NON-NLS-1$
if (node instanceof BranchHierarchyNode) {
try {
for (Ref ref : ((BranchHierarchyNode) node)
.getChildRefsRecursive()) {
if (isRefCheckedOut(repository, ref)) {
return true;
}
}
} catch (IOException e) {
return false;
}
}
if (!(node.getObject() instanceof Ref)) {
return false;
}
Ref ref = (Ref) node.getObject();
return isRefCheckedOut(repository, ref);
}
if (property.equals("isLocalBranch")) { //$NON-NLS-1$
if (!(node.getObject() instanceof Ref)) {
return false;
}
Ref ref = (Ref) node.getObject();
return ref.getName().startsWith(Constants.R_HEADS);
}
if (property.equals("fetchExists")) { //$NON-NLS-1$
if (node instanceof RemoteNode) {
String configName = ((RemoteNode) node).getObject();
RemoteConfig rconfig;
try {
rconfig = new RemoteConfig(
SelectionRepositoryStateCache.INSTANCE.getConfig(repository),
configName);
} catch (URISyntaxException e2) {
return false;
}
// we need to have a fetch ref spec and a fetch URI
return !rconfig.getFetchRefSpecs().isEmpty()
&& !rconfig.getURIs().isEmpty();
}
}
if (property.equals("pushExists")) { //$NON-NLS-1$
if (node instanceof RemoteNode) {
String configName = ((RemoteNode) node).getObject();
RemoteConfig rconfig;
try {
rconfig = new RemoteConfig(
SelectionRepositoryStateCache.INSTANCE.getConfig(repository),
configName);
} catch (URISyntaxException e2) {
return false;
}
// we need to have at least a push ref spec and any URI
return !rconfig.getPushRefSpecs().isEmpty()
&& (!rconfig.getPushURIs().isEmpty() || !rconfig
.getURIs().isEmpty());
}
}
if (property.equals("canStash")) { //$NON-NLS-1$
RepositoryState state = SelectionRepositoryStateCache.INSTANCE
.getRepositoryState(repository);
return state.canCommit();
}
if (property.equals("canMerge")) { //$NON-NLS-1$
RepositoryState state = SelectionRepositoryStateCache.INSTANCE
.getRepositoryState(repository);
if (state != RepositoryState.SAFE) {
return false;
}
String branch = SelectionRepositoryStateCache.INSTANCE
.getFullBranchName(repository);
if (branch == null) {
return false; // fail gracefully...
}
return branch.startsWith(Constants.R_HEADS);
}
if ("isSubmodule".equals(property)) { //$NON-NLS-1$
RepositoryTreeNode<?> parent = node.getParent();
return parent != null
&& parent.getType() == RepositoryTreeNodeType.SUBMODULES;
}
if ("canEnableLfs".equals(property)) { //$NON-NLS-1$
if (LfsFactory.getInstance().isAvailable()) {
return !LfsFactory.getInstance().isEnabled(repository);
}
}
return false;
}
private boolean isRefCheckedOut(Repository repository, Ref ref) {
if (ref.getName().startsWith(Constants.R_REFS)) {
return ref.getName().equals(
SelectionRepositoryStateCache.INSTANCE.getFullBranchName(repository));
} else if (ref.getName().equals(Constants.HEAD)) {
return true;
} else {
String leafname = ref.getLeaf().getName();
if (leafname.startsWith(Constants.R_REFS) && leafname.equals(
SelectionRepositoryStateCache.INSTANCE.getFullBranchName(repository))) {
return true;
} else {
ObjectId objectId = ref.getLeaf().getObjectId();
return objectId != null && objectId
.equals(SelectionRepositoryStateCache.INSTANCE.getHead(repository));
}
}
}
private boolean containsHead(Repository repository) {
return SelectionRepositoryStateCache.INSTANCE.getHead(repository) != null;
}
}
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