Fixes Issue #64

src/main/java/org/codehaus/mojo/buildhelper/RemoveLocalArtifactMojo.java

@@ -26,15 +26,23 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.io.Reader;
+import java.io.Writer;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
+import org.apache.maven.artifact.repository.metadata.Metadata;
+import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader;
+import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Writer;
 import org.apache.maven.plugin.AbstractMojo;
 import org.apache.maven.plugin.MojoFailureException;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
 import org.apache.maven.plugins.annotations.Mojo;
 import org.apache.maven.plugins.annotations.Parameter;
 import org.apache.maven.project.MavenProject;
+import org.apache.maven.shared.utils.ReaderFactory;
+import org.apache.maven.shared.utils.WriterFactory;
 import org.codehaus.plexus.util.FileUtils;
+import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
 
 /**
  * Remove project's artifacts from local repository. Useful to keep only one copy of large local snapshot, for example:
@@ -89,6 +97,9 @@ public void execute()
         if ( removeAll )
         {
             localArtifactDirectory = localArtifactDirectory.getParentFile();
+        } else {
+            File metadataFile = new File( localArtifactDirectory, "maven-metadata-local.xml" );
+            modifyMetadataFile( this.project, metadataFile );
         }
 
         try
@@ -113,4 +124,23 @@ public void execute()
             }
         }
     }
+
+    static void modifyMetadataFile( MavenProject mavenProject, File metadataFile ) throws MojoFailureException {
+		if ( metadataFile.exists() ) {
+			try {
+		    	Reader reader = ReaderFactory.newXmlReader( metadataFile );
+		    	MetadataXpp3Reader mappingReader = new MetadataXpp3Reader();
+		    	Metadata metadata = mappingReader.read( reader, true );
+		    	metadata.getVersioning().removeVersion(mavenProject.getArtifact().getVersion());
+		    	Writer writer = WriterFactory.newXmlWriter( metadataFile );
+		    	MetadataXpp3Writer mappingWriter = new MetadataXpp3Writer();
+		    	mappingWriter.write( writer, metadata );
+		    	writer.flush();
+			} catch ( IOException e ) {
+		        throw new MojoFailureException( "IOException thrown while trying to modify metadata file.", e );
+			} catch ( XmlPullParserException e ) {
+		        throw new MojoFailureException( "XmlPullParserException thrown while trying to modify metadata file.", e );
+			}
+		}
+	}
 }

src/test/java/org/codehaus/mojo/buildhelper/RemoveLocalArtifactMojoTest.java

@@ -0,0 +1,81 @@
+package org.codehaus.mojo.buildhelper;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.apache.maven.artifact.DefaultArtifact;
+import org.apache.maven.artifact.factory.DefaultArtifactFactory;
+import org.apache.maven.artifact.repository.metadata.Metadata;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.project.MavenProject;
+import org.junit.rules.TemporaryFolder;
+import org.testng.Assert;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeMethod;
+import org.testng.annotations.Test;
+
+public class RemoveLocalArtifactMojoTest {
+
+    private static final String metadataContents = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" 
+            + "<metadata>\n"
+            + "<groupId>groupId</groupId>\n" 
+            + "<artifactId>artifactId</artifactId>\n" 
+            + "<versioning>\n"
+            + "<release>3.0.1</release>\n" 
+            + "<versions>\n" 
+            + "<version>3.0.0</version>\n"
+            + "<version>3.0.1</version>\n" 
+            + "</versions>\n" 
+            + "<lastUpdated>20180709210726</lastUpdated>\n"
+            + "</versioning>\n" 
+            + "</metadata>";
+
+    @Test
+    public void testRemove300() throws MojoFailureException, IOException {
+
+        Path metadataFilePath = Files.createTempFile( "metadata", ".xml" );
+        File metadataFile = metadataFilePath.toFile();
+        try (PrintWriter out = new PrintWriter( metadataFile.getAbsolutePath() )) {
+            out.println( metadataContents );
+        }
+        MavenProject project = new MavenProject();
+        org.apache.maven.artifact.Artifact artifact = new DefaultArtifact( "groupId", "artifactId", "3.0.0", "compile",
+                "jar", "default", null );
+        project.setArtifact( artifact );
+
+        RemoveLocalArtifactMojo.modifyMetadataFile( project, metadataFile );
+        String newMetadata = readFile( metadataFile.toPath() );
+        Assert.assertEquals( artifact.getVersion(), "3.0.0" );
+        Assert.assertFalse( newMetadata.contains( "<version>3.0.0</version>" ) );
+        Assert.assertTrue( newMetadata.contains( "<version>3.0.1</version>" ) );
+    }
+
+    @Test
+    public void testRemove301() throws MojoFailureException, IOException {
+
+        Path metadataFilePath = Files.createTempFile( "metadata", ".xml" );
+        File metadataFile = metadataFilePath.toFile();
+        try (PrintWriter out = new PrintWriter( metadataFile.getAbsolutePath() )) {
+            out.println( metadataContents );
+        }
+        MavenProject project = new MavenProject();
+        org.apache.maven.artifact.Artifact artifact = new DefaultArtifact( "groupId", "artifactId", "3.0.1", "compile",
+                "jar", "default", null );
+        project.setArtifact( artifact );
+
+        RemoveLocalArtifactMojo.modifyMetadataFile( project, metadataFile );
+        String newMetadata = readFile( metadataFile.toPath() );
+        Assert.assertEquals( artifact.getVersion(), "3.0.1" );
+        Assert.assertTrue( newMetadata.contains( "<version>3.0.0</version>" ) );
+        Assert.assertFalse( newMetadata.contains( "<version>3.0.1</version>" ) );
+    }
+
+    private static String readFile(Path path) throws IOException {
+        byte[] encoded = Files.readAllBytes( path );
+        return new String( encoded, StandardCharsets.UTF_8 );
+    }
+}