Describe different migration strategies

scm-webapp/src/main/java/sonia/scm/update/repository/MigrationStrategy.java

@@ -6,14 +6,27 @@ import java.nio.file.Path;
 
 public enum MigrationStrategy {
 
-  COPY(CopyMigrationStrategy.class),
+  COPY(CopyMigrationStrategy.class,
-  MOVE(MoveMigrationStrategy.class),
+    "Copy the repository data files to the new native location inside SCM-Manager home directory. " +
-  INLINE(InlineMigrationStrategy.class);
+      "This will keep the original directory."),
+  MOVE(MoveMigrationStrategy.class,
+    "Move the repository data files to the new native location inside SCM-Manager home directory. " +
+      "The original directory will be deleted."),
+  INLINE(InlineMigrationStrategy.class,
+    "Use the current directory where the repository data files are stored, but modify the directory " +
+      "structure so that it can be used for SCM-Manager v2. The repository data files will be moved to a new " +
+      "subdirectory 'data' inside the current directory.");
 
-  private Class<? extends Instance> implementationClass;
+  private final Class<? extends Instance> implementationClass;
+  private final String description;
 
-  MigrationStrategy(Class<? extends Instance> implementationClass) {
+  MigrationStrategy(Class<? extends Instance> implementationClass, String description) {
     this.implementationClass = implementationClass;
+    this.description = description;
+  }
+
+  public String getDescription() {
+    return description;
   }
 
   Instance from(Injector injector) {

scm-webapp/src/main/resources/templates/repository-migration.mustache

@@ -47,7 +47,7 @@
                         <div class="control select">
                           <select name="{{id}}">
                             {{#strategies}}
-                              <option>{{.}}</option>
+                              <option>{{name}}</option>
                             {{/strategies}}
                           </select>
                         </div>
@@ -58,6 +58,18 @@
               </table>
               <button class="button is-primary" type="submit">Submit</button>
             </form>
+            <hr>
+            <div class="content">
+              <h2 class="subtitle">These are the different strategies:</h2>
+              <table class="table">
+                {{#strategies}}
+                  <tr>
+                    <th>{{name}}</th>
+                    <td>{{description}}</td>
+                  </tr>
+                {{/strategies}}
+              </table>
+            </div>
           </div>
         </section>
       </div>