Better messaging when no recipe is activated

openrewrite · Jul 8, 2022 · b6ca866 · b6ca866
1 parent 455bc7c
commit b6ca866
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/main/java/org/openrewrite/maven/AbstractRewriteMojo.java b/src/main/java/org/openrewrite/maven/AbstractRewriteMojo.java
@@ -173,6 +173,12 @@ protected ResultsContainer listResults() throws MojoExecutionException {
             }
 
             Recipe recipe = env.activateRecipes(getActiveRecipes());
+            if(recipe.getRecipeList().size() == 0) {
+                getLog().warn("No recipes were activated. " +
+                        "Activate a recipe with <activeRecipes><recipe>com.fully.qualified.RecipeClassName</recipe></activeRecipes> in this plugin's <configuration> in your pom.xml, " +
+                        "or on the command line with -Drewrite.activeRecipes=com.fully.qualified.RecipeClassName");
+                return new ResultsContainer(baseDir, emptyList());
+            }
 
             getLog().info("Validating active recipes...");
             Collection<Validated> validated = recipe.validateAll();