CHE-5335: Add Git branch/revision link to project name (eclipse-che#5817

)

ide/che-core-ide-api/src/main/java/org/eclipse/che/ide/api/theme/Theme.java

@@ -1520,6 +1520,8 @@ public interface Theme {
 
     String projectExplorerHoverRowBorder();
 
+    String projectExplorerVcsHead();
+
     /********************************************************************************************
      *
      * Loader

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/part/explorer/project/ProjectExplorerViewImpl.java

@@ -10,7 +10,8 @@
  *******************************************************************************/
 package org.eclipse.che.ide.part.explorer.project;
 
-import com.google.common.base.Optional;
+import com.google.gwt.dom.client.DivElement;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
@@ -29,14 +30,15 @@
 import org.eclipse.che.ide.api.data.tree.HasAttributes;
 import org.eclipse.che.ide.api.data.tree.Node;
 import org.eclipse.che.ide.api.data.tree.NodeInterceptor;
-import org.eclipse.che.ide.api.data.tree.settings.HasSettings;
 import org.eclipse.che.ide.api.parts.PerspectiveManager;
 import org.eclipse.che.ide.api.parts.base.BaseView;
 import org.eclipse.che.ide.api.parts.base.ToolButton;
+import org.eclipse.che.ide.api.resources.Container;
 import org.eclipse.che.ide.api.resources.Project;
 import org.eclipse.che.ide.api.resources.Resource;
 import org.eclipse.che.ide.menu.ContextMenu;
 import org.eclipse.che.ide.project.node.SyntheticNode;
+import org.eclipse.che.ide.resources.tree.ContainerNode;
 import org.eclipse.che.ide.resources.tree.ResourceNode;
 import org.eclipse.che.ide.resources.tree.SkipHiddenNodesInterceptor;
 import org.eclipse.che.ide.FontAwesome;
@@ -331,10 +333,8 @@ public Element render(Node node, String domID, Tree.Joint joint, int depth) {
                 final Resource resource = ((ResourceNode)node).getData();
                 element.setAttribute("path", resource.getLocation().toString());
 
-                final Optional<Project> project = resource.getRelatedProject();
-                if (project.isPresent()) {
-                    element.setAttribute("project", project.get().getLocation().toString());
-                }
+                Project project = resource.getProject();
+                element.setAttribute("project", project.getLocation().toString());
             }
 
             if (node instanceof HasAction) {
@@ -351,6 +351,19 @@ public Element render(Node node, String domID, Tree.Joint joint, int depth) {
                        .setBackgroundColor(((HasAttributes)node).getAttributes().get(CUSTOM_BACKGROUND_FILL).get(0));
             }
 
+            if (node instanceof ContainerNode) {
+                Container container = ((ContainerNode)node).getData();
+                if (container instanceof Project) {
+                    String head = container.getProject().getAttribute("git.current.head.name");
+                    if (head != null) {
+                        Element nodeContainer = element.getFirstChildElement();
+                        DivElement divElement = Document.get().createDivElement();
+                        divElement.setInnerText("(" + head + ")");
+                        divElement.setClassName(treeStyles.styles().vcsHeadContainer());
+                        nodeContainer.insertBefore(divElement, nodeContainer.getLastChild());
+                    }
+                }
+            }
             return element;
         }
     }

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/resources/impl/ResourceManager.java

@@ -74,6 +74,7 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.System.arraycopy;
 import static java.util.Arrays.copyOf;
+import static java.util.Arrays.stream;
 import static org.eclipse.che.ide.api.resources.Resource.FILE;
 import static org.eclipse.che.ide.api.resources.ResourceDelta.ADDED;
 import static org.eclipse.che.ide.api.resources.ResourceDelta.COPIED_FROM;
@@ -84,6 +85,7 @@
 import static org.eclipse.che.ide.api.resources.ResourceDelta.SYNCHRONIZED;
 import static org.eclipse.che.ide.api.resources.ResourceDelta.UPDATED;
 import static org.eclipse.che.ide.util.Arrays.add;
+import static org.eclipse.che.ide.util.Arrays.contains;
 import static org.eclipse.che.ide.util.Arrays.removeAll;
 import static org.eclipse.che.ide.util.NameUtils.checkFileName;
 import static org.eclipse.che.ide.util.NameUtils.checkFolderName;
@@ -681,7 +683,7 @@ public void visit(Resource resource) {
                     eventBus.fireEvent(new ResourceChangedEvent(new ResourceDeltaImpl(resource, REMOVED)));
                 }
 
-                final Resource[] updated = removeAll(outdated, reloaded, true);
+                final Resource[] updated = stream(reloaded).filter(resource -> contains(outdated, resource)).toArray(Resource[]::new);
                 for (Resource resource : updated) {
                     store.register(resource);
 

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/theme/DarkTheme.java

@@ -1381,6 +1381,11 @@ public String projectExplorerHoverRowBorder() {
         return "#dbdbdb";
     }
 
+    @Override
+    public String projectExplorerVcsHead() {
+        return "#c3bfbf";
+    }
+
     @Override
     public String loaderExpanderColor() {
         return "#e3e3e3";

ide/che-core-ide-app/src/main/java/org/eclipse/che/ide/theme/LightTheme.java

@@ -1357,6 +1357,11 @@ public String projectExplorerHoverRowBorder() {
         return "#7b7b7b";
     }
 
+    @Override
+    public String projectExplorerVcsHead() {
+        return "#7A8088";
+    }
+
     @Override
     public String loaderExpanderColor() {
         return "#555555";

ide/che-core-ide-ui/src/main/java/org/eclipse/che/ide/ui/smartTree/TreeStyles.java

@@ -36,6 +36,8 @@ interface CSS extends CssResource {
 
         String infoTextContainer();
 
+        String vcsHeadContainer();
+
         String descendantsContainer();
 
         String selected();

ide/che-core-ide-ui/src/main/resources/org/eclipse/che/ide/ui/smartTree/TreeStyles.css

@@ -16,6 +16,7 @@
 @eval projectExplorerSelectedRowBorder org.eclipse.che.ide.api.theme.Style.theme.projectExplorerSelectedRowBorder();
 @eval projectExplorerHoverRowBackground org.eclipse.che.ide.api.theme.Style.theme.projectExplorerHoverRowBackground();
 @eval projectExplorerHoverRowBorder org.eclipse.che.ide.api.theme.Style.theme.projectExplorerHoverRowBorder();
+@eval projectExplorerVcsHead org.eclipse.che.ide.api.theme.Style.theme.projectExplorerVcsHead();
 
 
 .noFocusOutline {
@@ -62,6 +63,18 @@
     text-shadow: projectExplorerInfoTextShadow;
 }
 
+.vcsHeadContainer {
+    white-space: nowrap;
+    vertical-align: middle;
+    display: inline-block;
+    margin-top: -10px;
+    font-size: 1em;
+    font-style: italic;
+    padding-left: 2px;
+    text-shadow: projectExplorerPresentableTextShadow;
+    color: projectExplorerVcsHead;
+}
+
 .nodeContainer {
     white-space: nowrap;
     height: 20px;
@@ -73,13 +86,6 @@
 
 .selected {
     background-color: projectExplorerSelectedRowBackground !important;
-    /* Set default text color to selected item */
-    color: projectExplorerJointContainerFill !important;
-}
-
-/* Set default text color to nested elements of selected item */
-.selected * {
-    color: projectExplorerJointContainerFill !important;
 }
 
 .hover {

plugins/plugin-git/che-plugin-git-ext-git/src/main/java/org/eclipse/che/ide/ext/git/client/GitCheckoutStatusNotificationHandler.java → plugins/plugin-git/che-plugin-git-ext-git/src/main/java/org/eclipse/che/ide/ext/git/client/GitCheckoutHandler.java

@@ -14,7 +14,9 @@
 import org.eclipse.che.api.core.jsonrpc.commons.RequestHandlerConfigurator;
 import org.eclipse.che.api.project.shared.dto.event.GitCheckoutEventDto;
 import org.eclipse.che.api.project.shared.dto.event.GitCheckoutEventDto.Type;
+import org.eclipse.che.ide.api.app.AppContext;
 import org.eclipse.che.ide.api.notification.NotificationManager;
+import org.eclipse.che.ide.resources.impl.ResourceManager;
 import org.eclipse.che.ide.util.loging.Log;
 
 import javax.inject.Inject;
@@ -27,22 +29,26 @@
 /**
  * Receives git checkout notifications caught by server side VFS file watching system.
  * Support two type of notifications: git branch checkout and git revision checkout.
- * After a notification is received it is processed and passed to and instance of
- * {@link NotificationManager}.
+ * After a notification is received it is processed and passed to an instance of
+ * {@link NotificationManager}. Updates attributes of the project from server to load
+ * new HEAD value to project attributes that are held in {@link ResourceManager}.
  */
 @Singleton
-public class GitCheckoutStatusNotificationHandler {
-    private final Provider<NotificationManager> notificationManagerProvider;
+public class GitCheckoutHandler {
+    private final Provider<NotificationManager>          notificationManagerProvider;
+    private final AppContext                             appContext;
 
     @Inject
-    public GitCheckoutStatusNotificationHandler(Provider<NotificationManager> notificationManagerProvider,
-                                                RequestHandlerConfigurator configurator) {
+    public GitCheckoutHandler(Provider<NotificationManager> notificationManagerProvider,
+                              RequestHandlerConfigurator configurator,
+                              AppContext appContext) {
         this.notificationManagerProvider = notificationManagerProvider;
+        this.appContext = appContext;
 
         configureHandler(configurator);
     }
 
-    public void configureHandler(RequestHandlerConfigurator configurator) {
+    private void configureHandler(RequestHandlerConfigurator configurator) {
         configurator.newConfiguration()
                     .methodName("event:git-checkout")
                     .paramsAsDto(GitCheckoutEventDto.class)
@@ -76,5 +82,8 @@ public void apply(String endpointId, GitCheckoutEventDto dto) {
                 break;
             }
         }
+
+        //Update project attributes from server.
+        appContext.getWorkspaceRoot().synchronize();
     }
 }

plugins/plugin-git/che-plugin-git-ext-git/src/main/java/org/eclipse/che/ide/ext/git/client/branch/BranchPresenter.java

@@ -160,8 +160,7 @@ public void onCheckoutClicked() {
 
         service.checkout(project.getLocation(), checkoutRequest)
                .then(ignored -> {
-                   getBranches();
-                   project.synchronize();
+                   view.close();
                })
                .catchError(error -> {
                    handleError(error.getCause(), BRANCH_CHECKOUT_COMMAND_NAME);

plugins/plugin-git/che-plugin-git-ext-git/src/main/java/org/eclipse/che/ide/ext/git/client/inject/GitGinModule.java

@@ -18,7 +18,7 @@
 import org.eclipse.che.ide.api.extension.ExtensionGinModule;
 import org.eclipse.che.ide.api.preferences.PreferencePagePresenter;
 import org.eclipse.che.ide.api.project.wizard.ImportWizardRegistrar;
-import org.eclipse.che.ide.ext.git.client.GitCheckoutStatusNotificationHandler;
+import org.eclipse.che.ide.ext.git.client.GitCheckoutHandler;
 import org.eclipse.che.ide.ext.git.client.add.AddToIndexView;
 import org.eclipse.che.ide.ext.git.client.add.AddToIndexViewImpl;
 import org.eclipse.che.ide.ext.git.client.branch.BranchView;
@@ -92,6 +92,6 @@ protected void configure() {
         install(new GinFactoryModuleBuilder().implement(GitOutputConsole.class, GitOutputConsolePresenter.class)
                                              .build(GitOutputConsoleFactory.class));
 
-        bind(GitCheckoutStatusNotificationHandler.class).asEagerSingleton();
+        bind(GitCheckoutHandler.class).asEagerSingleton();
     }
 }

wsagent/che-core-api-git/src/main/java/org/eclipse/che/api/git/GitCheckoutDetector.java

@@ -10,10 +10,13 @@
  *******************************************************************************/
 package org.eclipse.che.api.git;
 
+import org.eclipse.che.api.core.ConflictException;
 import org.eclipse.che.api.core.ForbiddenException;
+import org.eclipse.che.api.core.NotFoundException;
 import org.eclipse.che.api.core.ServerException;
 import org.eclipse.che.api.core.jsonrpc.commons.RequestTransmitter;
 import org.eclipse.che.api.core.jsonrpc.commons.RequestHandlerConfigurator;
+import org.eclipse.che.api.project.server.ProjectRegistry;
 import org.eclipse.che.api.project.shared.dto.event.GitCheckoutEventDto;
 import org.eclipse.che.api.project.shared.dto.event.GitCheckoutEventDto.Type;
 import org.eclipse.che.api.vfs.Path;
@@ -51,16 +54,21 @@ public class GitCheckoutDetector {
     private final VirtualFileSystemProvider vfsProvider;
     private final RequestTransmitter        transmitter;
     private final FileWatcherManager        manager;
+    private final ProjectRegistry           projectRegistry;
 
     private final Set<String> endpointIds = newConcurrentHashSet();
 
     private int id;
 
     @Inject
-    public GitCheckoutDetector(VirtualFileSystemProvider vfsProvider, RequestTransmitter transmitter, FileWatcherManager manager) {
+    public GitCheckoutDetector(VirtualFileSystemProvider vfsProvider,
+                               RequestTransmitter transmitter,
+                               FileWatcherManager manager,
+                               ProjectRegistry projectRegistry) {
         this.vfsProvider = vfsProvider;
         this.transmitter = transmitter;
         this.manager = manager;
+        this.projectRegistry = projectRegistry;
     }
 
     @Inject
@@ -111,10 +119,15 @@ private Consumer<String> fsEventConsumer() {
                 Type type = content.contains("ref:") ? BRANCH : REVISION;
                 String name = type == REVISION ? content : PATTERN.split(content)[1];
 
+                //Update project attributes with new git values
+                projectRegistry.setProjectType(it.split("/")[1], GitProjectType.TYPE_ID, true);
+
                 endpointIds.forEach(transmitConsumer(type, name));
 
             } catch (ServerException | ForbiddenException e) {
                 LOG.error("Error trying to read {} file and broadcast it", it, e);
+            } catch (NotFoundException | ConflictException e) {
+                LOG.error("Error trying to update project attributes", it, e);
             }
         };
     }

wsagent/che-core-api-git/src/main/java/org/eclipse/che/api/git/GitProjectType.java

@@ -21,18 +21,18 @@
 @Singleton
 public class GitProjectType extends TransientMixin {
 
-    public static final String TYPE_ID                 = "git";
-    public static final String DISPLAY_NAME            = "git";
-    public static final String VCS_PROVIDER_NAME       = "vcs.provider.name";
-    public static final String GIT_CURRENT_BRANCH_NAME = "git.current.branch.name";
-    public static final String GIT_REPOSITORY_REMOTES  = "git.repository.remotes";
+    public static final String TYPE_ID                = "git";
+    public static final String DISPLAY_NAME           = "git";
+    public static final String VCS_PROVIDER_NAME      = "vcs.provider.name";
+    public static final String GIT_CURRENT_HEAD_NAME  = "git.current.head.name";
+    public static final String GIT_REPOSITORY_REMOTES = "git.repository.remotes";
 
     @Inject
     public GitProjectType(GitValueProviderFactory gitRepositoryValueProviderFactory) {
         super(TYPE_ID, DISPLAY_NAME);
         addVariableDefinition(VCS_PROVIDER_NAME, "Is this git repo or not?", true,
                               gitRepositoryValueProviderFactory);
-        addVariableDefinition(GIT_CURRENT_BRANCH_NAME, "Name of current git branch", false,
+        addVariableDefinition(GIT_CURRENT_HEAD_NAME, "Name of current git branch or revision", false,
                               gitRepositoryValueProviderFactory);
         addVariableDefinition(GIT_REPOSITORY_REMOTES, "List of git repository remote addresses", false,
                               gitRepositoryValueProviderFactory);

wsagent/che-core-api-git/src/main/java/org/eclipse/che/api/git/GitValueProviderFactory.java

@@ -13,6 +13,7 @@
 import com.google.inject.Inject;
 
 import org.eclipse.che.api.core.ApiException;
+import org.eclipse.che.api.git.params.LogParams;
 import org.eclipse.che.api.git.shared.Remote;
 import org.eclipse.che.api.project.server.FolderEntry;
 import org.eclipse.che.api.project.server.type.ReadonlyValueProvider;
@@ -25,7 +26,8 @@
 import java.util.List;
 import java.util.stream.Collectors;
 
-import static org.eclipse.che.api.git.GitProjectType.GIT_CURRENT_BRANCH_NAME;
+import static java.util.Collections.singletonList;
+import static org.eclipse.che.api.git.GitProjectType.GIT_CURRENT_HEAD_NAME;
 import static org.eclipse.che.api.git.GitProjectType.GIT_REPOSITORY_REMOTES;
 import static org.eclipse.che.api.git.GitProjectType.VCS_PROVIDER_NAME;
 
@@ -54,9 +56,14 @@ public List<String> getValues(String attributeName) throws ValueStorageException
 
                     switch (attributeName) {
                         case VCS_PROVIDER_NAME:
-                            return Collections.singletonList("git");
-                        case GIT_CURRENT_BRANCH_NAME:
-                            return Collections.singletonList(gitConnection.getCurrentBranch());
+                            return singletonList("git");
+                        case GIT_CURRENT_HEAD_NAME:
+                            String currentBranch = gitConnection.getCurrentBranch();
+                            return singletonList("HEAD".equals(currentBranch) ? gitConnection.log(LogParams.create().withMaxCount(1))
+                                                                                             .getCommits()
+                                                                                             .get(0)
+                                                                                             .getId()
+                                                                              : currentBranch);
                         case GIT_REPOSITORY_REMOTES:
                             return gitConnection.remoteList(null, false)
                                                 .stream()