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Issue #74: Add display-extension-updates
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64 changes: 64 additions & 0 deletions
64
versions-common/src/main/java/org/codehaus/mojo/versions/utils/CoreExtensionUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| package org.codehaus.mojo.versions.utils; | ||
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| /* | ||
| * Copyright MojoHaus and Contributors | ||
| * | ||
| * 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. | ||
| */ | ||
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|
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| import java.io.BufferedReader; | ||
| import java.io.IOException; | ||
| import java.io.InputStreamReader; | ||
| import java.io.Reader; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.util.stream.Stream; | ||
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| import org.apache.maven.model.Extension; | ||
| import org.apache.maven.project.MavenProject; | ||
| import org.codehaus.mojo.versions.model.io.xpp3.CoreExtensionsXpp3Reader; | ||
| import org.codehaus.plexus.util.xml.pull.XmlPullParserException; | ||
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| /** | ||
| * Utilities for reading and handling core extensions. | ||
| * | ||
| * @author Andrzej Jarmoniuk | ||
| * @since 2.15.0 | ||
| */ | ||
| public final class CoreExtensionUtils { | ||
| /** | ||
| * Reads the core extensions (not build extensions) configured for the given project | ||
| * from the {@code ${project}/.mvn/extensions.xml} file. | ||
| * | ||
| * @param project {@link MavenProject} instance | ||
| * @return stream of core extensions defined in the {@code ${project}/.mvn/extensions.xml} file | ||
| * @throws IOException thrown if a file I/O operation fails | ||
| * @throws XmlPullParserException thrown if the file cannot be parsed | ||
| * @since 2.15.0 | ||
| */ | ||
| public static Stream<Extension> getCoreExtensions(MavenProject project) throws IOException, XmlPullParserException { | ||
| Path extensionsFile = project.getBasedir().toPath().resolve(".mvn/extensions.xml"); | ||
| if (!Files.isRegularFile(extensionsFile)) { | ||
| return Stream.empty(); | ||
| } | ||
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| try (Reader reader = new BufferedReader(new InputStreamReader(Files.newInputStream(extensionsFile)))) { | ||
| return new CoreExtensionsXpp3Reader() | ||
| .read(reader).getExtensions().stream().map(ex -> ExtensionBuilder.newBuilder() | ||
| .withGroupId(ex.getGroupId()) | ||
| .withArtifactId(ex.getArtifactId()) | ||
| .withVersion(ex.getVersion()) | ||
| .build()); | ||
| } | ||
| } | ||
| } |
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