Add changesets command to enable commit search (#2106)

Introduce changesets command to find all changesets for a single repository. This is required to index all changesets for the commit search.

scm-plugins/scm-svn-plugin/src/test/java/sonia/scm/repository/spi/SvnChangesetsCommandTest.java

@@ -0,0 +1,56 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package sonia.scm.repository.spi;
+
+import org.junit.Test;
+import sonia.scm.repository.Changeset;
+
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class SvnChangesetsCommandTest extends AbstractSvnCommandTestBase {
+
+  @Test
+  public void getAllChangesetsFromRepository() {
+    Iterable<Changeset> changesets = createCommand().getChangesets(new ChangesetsCommandRequest());
+
+    assertThat(changesets).hasSize(5);
+  }
+
+  @Test
+  public void getLatestChangesetFromRepository() {
+    Optional<Changeset> changeset = createCommand().getLatestChangeset();
+
+    assertThat(changeset).isPresent();
+    assertThat(changeset.get().getId()).isEqualTo("5");
+  }
+
+  private SvnChangesetsCommand createCommand()
+  {
+    return new SvnChangesetsCommand(createContext());
+  }
+
+}