Resolves mojohaus#888: New optional parameter to SetMojo: interpolate…

…Properties

- allows to disable property interpolation, so that it's possible to match against raw property values as well as replace properties with interpolated values if the value is the same as the property value

versions-maven-plugin/src/main/java/org/codehaus/mojo/versions/SetMojo.java

@@ -66,7 +66,6 @@
 import org.codehaus.plexus.components.interactivity.PrompterException;
 import org.codehaus.plexus.util.StringUtils;
 
-import static java.util.Optional.ofNullable;
 import static org.codehaus.plexus.util.StringUtils.isEmpty;
 
 /**
@@ -252,6 +251,15 @@ public class SetMojo extends AbstractVersionsUpdaterMojo {
      */
     protected final ProjectBuilder projectBuilder;
 
+    /**
+     * If set to {@code false}, the plugin will not interpolate property values when looking for versions
+     * to be changed, but will instead operate on raw model.
+     *
+     * @since 2.15.0
+     */
+    @Parameter(property = "interpolateProperties", defaultValue = "true")
+    protected boolean interpolateProperties = true;
+
     @Inject
     public SetMojo(
             RepositorySystem repositorySystem,
@@ -350,17 +358,16 @@ public void execute() throws MojoExecutionException, MojoFailureException {
                     Pattern.compile(RegexUtils.convertWildcardsToRegex(fixNullOrEmpty(oldVersion, "*"), true));
 
             for (Model m : reactor.values()) {
-                Map<String, String> properties = ofNullable(m.getProperties())
-                        .map(p -> p.entrySet().stream()
-                                .collect(Collectors.toMap(e -> e.getKey().toString(), e -> e.getValue()
-                                        .toString())))
-                        .orElse(null);
-
                 String mGroupId = PomHelper.getGroupId(m);
                 String mArtifactId = PomHelper.getArtifactId(m);
                 String mVersion = PomHelper.getVersion(m);
 
-                if (properties != null) {
+                if (interpolateProperties) {
+                    assert m.getProperties() != null; // always non-null
+                    Map<String, String> properties = m.getProperties().entrySet().stream()
+                            .collect(Collectors.toMap(e -> e.getKey().toString(), e -> e.getValue()
+                                    .toString()));
+
                     mGroupId = PomHelper.evaluate(mGroupId, properties);
                     mArtifactId = PomHelper.evaluate(mArtifactId, properties);
                     mVersion = PomHelper.evaluate(mVersion, properties);

versions-maven-plugin/src/test/java/org/codehaus/mojo/versions/SetMojoTest.java

@@ -5,6 +5,8 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.function.Consumer;
+import java.util.stream.Stream;
 
 import org.apache.maven.model.Model;
 import org.apache.maven.plugin.MojoExecutionException;
@@ -159,11 +161,12 @@ public void testSetOldVersionMismatchProcessAllModules() throws Exception {
                 not(containsString("<version>bar</version>")));
     }
 
-    private void testSetParameterValue(String filename) throws Exception {
+    private void testSetParameterValue(String filename, Consumer<SetMojo>... initializers) throws Exception {
         Files.copy(
                 Paths.get("src/test/resources/org/codehaus/mojo/set/issue-855/").resolve(filename),
                 tempDir.resolve("pom.xml"));
         SetMojo mojo = (SetMojo) mojoRule.lookupConfiguredMojo(tempDir.toFile(), "set");
+        Stream.of(initializers).forEachOrdered(i -> i.accept(mojo));
         mojo.execute();
         assertThat(
                 String.join("", Files.readAllLines(tempDir.resolve("pom.xml"))),
@@ -175,6 +178,28 @@ public void testSetParameterValueSimple() throws Exception {
         testSetParameterValue("pom-simple.xml");
     }
 
+    @Test
+    public void testSetParameterValueSimpleNoInterpolation() throws Exception {
+        try {
+            testSetParameterValue("pom-simple.xml", mojo -> mojo.interpolateProperties = false);
+            fail();
+        } catch (AssertionError e) {
+            assertThat(e.getMessage(), containsString("Expected: a string containing \"<version>testing</version>"));
+        }
+    }
+
+    @Test
+    public void testSetParameterValueSimpleNoInterpolationWildcard() throws Exception {
+        testSetParameterValue("pom-simple.xml", mojo -> {
+            mojo.interpolateProperties = false;
+            try {
+                setVariableValueToObject(mojo, "oldVersion", "*");
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e);
+            }
+        });
+    }
+
     @Test
     public void testSetParameterValueBuildNumber() throws Exception {
         testSetParameterValue("pom-build-number.xml");