Create RemoveRepository recipe

rewrite-maven/src/main/java/org/openrewrite/maven/RemoveRepository.java

@@ -0,0 +1,140 @@
+/*
+ * Copyright 2022 the original author or authors.
+ * <p>
+ * 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
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.openrewrite.maven;
+
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+import org.openrewrite.ExecutionContext;
+import org.openrewrite.Option;
+import org.openrewrite.Recipe;
+import org.openrewrite.TreeVisitor;
+import org.openrewrite.internal.lang.Nullable;
+import org.openrewrite.xml.AddToTagVisitor;
+import org.openrewrite.xml.ChangeTagValueVisitor;
+import org.openrewrite.xml.RemoveContentVisitor;
+import org.openrewrite.xml.XPathMatcher;
+import org.openrewrite.xml.tree.Xml;
+
+import java.util.Objects;
+import java.util.Optional;
+
+@Value
+@EqualsAndHashCode(callSuper = true)
+public class RemoveRepository extends Recipe {
+
+    private static final XPathMatcher REPOS_MATCHER = new XPathMatcher("/project/repositories/repository");
+
+    @Option(required = false, description = "Repository id")
+    @Nullable
+    private String id;
+
+    @Option(description = "Repository URL")
+    private String url;
+
+    @Option(required = false, description = "Repository name")
+    @Nullable
+    private String repoName;
+
+    @Option(required = false, description = "Repository layout")
+    @Nullable
+    private String layout;
+
+    @Option(required = false, description = "Snapshots from the repository are available")
+    @Nullable
+    private Boolean snapshotsEnabled;
+
+    @Option(required = false, description = "Snapshots checksum policy")
+    @Nullable
+    private String snapshotsChecksumPolicy;
+
+    @Option(required = false, description = "Snapshots update policy policy")
+    @Nullable
+    private String snapshotsUpdatePolicy;
+
+    @Option(required = false, description = "Releases from the repository are available")
+    @Nullable
+    private Boolean releasesEnabled;
+
+    @Option(required = false, description = "Releases checksum policy")
+    @Nullable
+    private String releasesChecksumPolicy;
+
+    @Option(required = false, description = "Releases update policy")
+    @Nullable
+    private String releasesUpdatePolicy;
+
+    @Override
+    public String getDisplayName() {
+        return "Remove repository";
+    }
+
+    @Override
+    public String getDescription() {
+        return "Removes a matching Maven repository.";
+    }
+
+    @Override
+    protected TreeVisitor<?, ExecutionContext> getVisitor() {
+        return new MavenIsoVisitor<ExecutionContext>() {
+            @Override
+            public Xml.Tag visitTag(Xml.Tag tag, ExecutionContext ctx) {
+                Xml.Tag repo = super.visitTag(tag, ctx);
+
+                if (REPOS_MATCHER.matches(getCursor())) {
+                    if (id == null && (isReleasesEqual(repo) && isSnapshotsEqual(repo)) &&
+                                        url.equals(repo.getChildValue("url").orElse(null))) {
+                        return null;
+                    } else if (id != null && (id.equals(repo.getChildValue("id").orElse(null)) || (isReleasesEqual(repo) && isSnapshotsEqual(repo))) &&
+                                url.equals(repo.getChildValue("url").orElse(null))) {
+                        return null;
+                    }
+                }
+                return repo;
+            }
+        };
+    }
+
+    private boolean isReleasesEqual(Xml.Tag repo) {
+        Xml.Tag releases = repo.getChild("releases").orElse(null);
+        if (releases == null) {
+            return isNoReleases();
+        } else {
+            return Objects.equals(releasesEnabled == null ? null : String.valueOf(releasesEnabled.booleanValue()), releases.getChildValue("enabled").orElse(null))
+                    && Objects.equals(releasesUpdatePolicy, releases.getChildValue("updatePolicy").orElse(null))
+                    && Objects.equals(releasesChecksumPolicy, releases.getChildValue("checksumPolicy").orElse(null));
+        }
+    }
+
+    private boolean isNoReleases() {
+        return releasesEnabled == null && releasesUpdatePolicy == null && releasesChecksumPolicy == null;
+    }
+
+    private boolean isSnapshotsEqual(Xml.Tag repo) {
+        Xml.Tag snapshots = repo.getChild("snapshots").orElse(null);
+        if (snapshots == null) {
+            return isNoSnapshots();
+        } else {
+            return Objects.equals(snapshotsEnabled == null ? null : String.valueOf(snapshotsEnabled.booleanValue()), snapshots.getChildValue("enabled").orElse(null))
+                    && Objects.equals(snapshotsUpdatePolicy, snapshots.getChildValue("updatePolicy").orElse(null))
+                    && Objects.equals(snapshotsChecksumPolicy, snapshots.getChildValue("checksumPolicy").orElse(null));
+        }
+    }
+
+    private boolean isNoSnapshots() {
+        return snapshotsEnabled == null && snapshotsUpdatePolicy == null && snapshotsChecksumPolicy == null;
+    }
+
+}

rewrite-maven/src/test/java/org/openrewrite/maven/RemoveRepositoryTest.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2022 the original author or authors.
+ * <p>
+ * 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
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.openrewrite.maven;
+
+import org.junit.jupiter.api.Test;
+import org.openrewrite.test.RewriteTest;
+
+import static org.openrewrite.maven.Assertions.pomXml;
+
+public class RemoveRepositoryTest implements RewriteTest {
+
+    @Test
+    void removeSimpleRepoWithIdAndUrl() {
+
+        rewriteRun(
+          spec -> spec.recipe(new RemoveRepository("myRepo", "http://myrepo.maven.com/repo", null, null,
+            null, null, null,
+            null, null, null)),
+          pomXml(
+            """
+              <project>
+                <groupId>com.mycompany.app</groupId>
+                <artifactId>my-app</artifactId>
+                <version>1</version>
+                <repositories>
+                  <repository>
+                    <id>myRepo</id>
+                    <url>http://myrepo.maven.com/repo</url>
+                  </repository>
+                  <repository>
+                    <id>identicalRepo</id>
+                    <url>http://myrepo.maven.com/repo</url>
+                  </repository>
+                </repositories>
+              </project>
+              """,
+            """
+              <project>
+                <groupId>com.mycompany.app</groupId>
+                <artifactId>my-app</artifactId>
+                <version>1</version>
+                <repositories>
+                </repositories>
+              </project>
+              """
+          )
+        );
+    }
+
+    @Test
+    void removeSimpleRepoWithUrlOnly() {
+
+        rewriteRun(
+          spec -> spec.recipe(new RemoveRepository(null, "http://myrepo.maven.com/repo", null, null,
+            null, null, null,
+            null, null, null)),
+          pomXml(
+            """
+              <project>
+                <groupId>com.mycompany.app</groupId>
+                <artifactId>my-app</artifactId>
+                <version>1</version>
+                <repositories>
+                  <repository>
+                    <id>myRepo</id>
+                    <url>http://myrepo.maven.com/repo</url>
+                  </repository>
+                </repositories>
+              </project>
+              """,
+            """
+              <project>
+                <groupId>com.mycompany.app</groupId>
+                <artifactId>my-app</artifactId>
+                <version>1</version>
+                <repositories>
+                </repositories>
+              </project>
+              """
+          )
+        );
+    }
+}