vcs global message initial

platform/platform-resources/src/componentSets/VCS.xml

@@ -46,6 +46,11 @@
       <implementation-class>com.intellij.openapi.vcs.changes.ChangeListManagerImpl</implementation-class>
       <option name="workspace" value="true"/>
     </component>
+    <component>
+      <interface-class>com.intellij.openapi.vcs.impl.VcsGlobalMessageManager</interface-class>
+      <implementation-class>com.intellij.openapi.vcs.impl.VcsGlobalMessageManager</implementation-class>
+      <skipForDefaultProject/>
+    </component>
     <component>
       <interface-class>com.intellij.openapi.vcs.changes.ChangesViewI</interface-class>
       <implementation-class>com.intellij.openapi.vcs.changes.ChangesViewManager</implementation-class>

platform/vcs-impl/src/com/intellij/openapi/vcs/impl/VcsGlobalMessage.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 com.intellij.openapi.vcs.impl;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+public class VcsGlobalMessage {
+  public String message;
+  public String author;
+  public long when;
+}

platform/vcs-impl/src/com/intellij/openapi/vcs/impl/VcsGlobalMessageManager.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 com.intellij.openapi.vcs.impl;
+
+import com.intellij.openapi.components.*;
+import com.intellij.openapi.project.Project;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Konstantin Bulenkov
+ */
+@State(
+  name = "GlobalMessageService",
+  storages = {
+    @Storage(file = StoragePathMacros.PROJECT_FILE),
+    @Storage(file = StoragePathMacros.PROJECT_CONFIG_DIR + "/vcs.xml", scheme = StorageScheme.DIRECTORY_BASED)
+  })
+public class VcsGlobalMessageManager implements ProjectComponent, PersistentStateComponent<VcsGlobalMessage> {
+  private VcsGlobalMessage myState;
+
+  public static VcsGlobalMessageManager getInstance(final Project project) {
+      return project.getComponent(VcsGlobalMessageManager.class);
+  }
+
+  @Nullable
+  @Override
+  public VcsGlobalMessage getState() {
+    return myState;
+  }
+
+  @Override
+  public void loadState(VcsGlobalMessage state) {
+    myState = state == null ? new VcsGlobalMessage() : state;
+  }
+
+  @Override
+  public void projectOpened() {
+
+  }
+
+  @Override
+  public void projectClosed() {
+
+  }
+
+  @Override
+  public void initComponent() {
+
+  }
+
+  @Override
+  public void disposeComponent() {
+
+  }
+
+  @NotNull
+  @Override
+  public String getComponentName() {
+    return "VcsGlobalMessageManager";
+  }
+}