add minorVersionBump

Closes gh-9709

buildSrc/src/main/java/org/springframework/security/convention/versions/UpdateDependenciesExtension.java

@@ -147,6 +147,24 @@ public class UpdateDependenciesExtension {
 			return this;
 		}
 
+		public DependencyExcludes minorVersionBump() {
+			this.actions.add(createExcludeMinorVersionBump());
+			return this;
+		}
+
+		public Action<ComponentSelectionWithCurrent> createExcludeMinorVersionBump() {
+			return (selection) -> {
+				String currentVersion = selection.getCurrentVersion();
+				int majorSeparator = currentVersion.indexOf(".");
+				int separator = currentVersion.indexOf(".", majorSeparator + 1);
+				String majorMinor = separator > 0 ? currentVersion.substring(0, separator) : currentVersion;
+				String candidateVersion = selection.getCandidate().getVersion();
+				if (!candidateVersion.startsWith(majorMinor)) {
+					selection.reject("Cannot upgrade to new Minor Version");
+				}
+			};
+		}
+
 		public DependencyExcludes releaseCandidatesVersions() {
 			this.actions.add(excludeVersionWithRegex("(?i).*?rc\\d+.*", "a release candidate version"));
 			return this;

buildSrc/src/main/java/org/springframework/security/convention/versions/UpdateDependenciesPlugin.java

@@ -179,6 +179,9 @@ public class UpdateDependenciesPlugin implements Plugin<Project> {
 	}
 
 	private void updateGradleVersion(Result result, Project project, UpdateDependenciesExtension updateDependenciesSettings) {
+		if (!result.getGradle().isEnabled()) {
+			return;
+		}
 		GradleUpdateResult current = result.getGradle().getCurrent();
 		GradleUpdateResult running = result.getGradle().getRunning();
 		if (current.compareTo(running) > 0) {

buildSrc/src/test/java/org/springframework/security/convention/versions/DependencyExcludesTests.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2019-2020 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.security.convention.versions;
+
+import com.github.benmanes.gradle.versions.updates.resolutionstrategy.ComponentSelectionWithCurrent;
+import org.gradle.api.Action;
+import org.gradle.api.artifacts.ComponentSelection;
+import org.gradle.api.artifacts.component.ModuleComponentIdentifier;
+import org.junit.Test;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.*;
+
+public class DependencyExcludesTests {
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenMajorVersionBumpThenReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("1.0.0", "2.0.0");
+		verify(componentSelection).reject(any());
+	}
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenMajorCalVersionBumpThenReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("2000.0.0", "2001.0.0");
+		verify(componentSelection).reject(any());
+	}
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenMinorVersionBumpThenReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("1.0.0", "1.1.0");
+		verify(componentSelection).reject(any());
+	}
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenMinorCalVersionBumpThenReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("2000.0.0", "2000.1.0");
+		verify(componentSelection).reject(any());
+	}
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenMinorAndPatchVersionBumpThenReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("1.0.0", "1.1.1");
+		verify(componentSelection).reject(any());
+	}
+
+	@Test
+	public void createExcludeMinorVersionBumpWhenPatchVersionBumpThenDoesNotReject() {
+		ComponentSelection componentSelection = executeCreateExcludeMinorVersionBump("1.0.0", "1.0.1");
+		verify(componentSelection, times(0)).reject(any());
+	}
+
+	private ComponentSelection executeCreateExcludeMinorVersionBump(String currentVersion, String candidateVersion) {
+		ComponentSelection componentSelection = mock(ComponentSelection.class);
+		UpdateDependenciesExtension.DependencyExcludes excludes = new UpdateDependenciesExtension(() -> Collections.emptyList()).new DependencyExcludes();
+		Action<ComponentSelectionWithCurrent> excludeMinorVersionBump = excludes.createExcludeMinorVersionBump();
+		ComponentSelectionWithCurrent selection = currentVersionAndCandidateVersion(componentSelection, currentVersion, candidateVersion);
+		excludeMinorVersionBump.execute(selection);
+		return componentSelection;
+	}
+
+	private ComponentSelectionWithCurrent currentVersionAndCandidateVersion(ComponentSelection componentSelection, String currentVersion, String candidateVersion) {
+		ModuleComponentIdentifier candidate = mock(ModuleComponentIdentifier.class);
+		given(componentSelection.getCandidate()).willReturn(candidate);
+		ComponentSelectionWithCurrent selection = new ComponentSelectionWithCurrent(currentVersion, componentSelection);
+		given(candidate.getVersion()).willReturn(candidateVersion);
+		given(componentSelection.getCandidate()).willReturn(candidate);
+		return selection;
+	}
+}