minor change to allow CompilerPlugins to be registered programatically

compiler/cli/src/org/jetbrains/jet/cli/CompilerArguments.java

@@ -18,11 +18,17 @@
 package org.jetbrains.jet.cli;
 
 import com.sampullara.cli.Argument;
+import org.jetbrains.jet.compiler.CompilerPlugin;
+
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Command line arguments for the {@link KotlinCompiler}
  */
 public class CompilerArguments {
+    private List<CompilerPlugin> compilerPlugins = new ArrayList<CompilerPlugin>();
+
     @Argument(value = "output", description = "output directory")
     public String outputDir;
 
@@ -150,4 +156,15 @@ public class CompilerArguments {
     public void setTags(boolean tags) {
         this.tags = tags;
     }
+
+    public List<CompilerPlugin> getCompilerPlugins() {
+        return compilerPlugins;
+    }
+
+    /**
+     * Sets the compiler plugins to be used when working with the {@link KotlinCompiler}
+     */
+    public void setCompilerPlugins(List<CompilerPlugin> compilerPlugins) {
+        this.compilerPlugins = compilerPlugins;
+    }
 }

compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java

@@ -19,10 +19,12 @@ package org.jetbrains.jet.cli;
 import com.sampullara.cli.Args;
 import org.jetbrains.jet.compiler.CompileEnvironment;
 import org.jetbrains.jet.compiler.CompileEnvironmentException;
+import org.jetbrains.jet.compiler.CompilerPlugin;
 import org.jetbrains.jet.compiler.MessageRenderer;
 import org.jetbrains.jet.lang.diagnostics.Severity;
 
 import java.io.PrintStream;
+import java.util.List;
 
 import static org.jetbrains.jet.cli.KotlinCompiler.ExitCode.*;
 
@@ -167,6 +169,12 @@ public class KotlinCompiler {
             KDocLoader.install(arguments.docOutputDir, environment.getMyEnvironment());
         }
 
+        // install any compiler plugins
+        List<CompilerPlugin> plugins = arguments.getCompilerPlugins();
+        if (plugins != null) {
+            environment.getMyEnvironment().getCompilerPlugins().addAll(plugins);
+        }
+
         if (arguments.stdlib != null) {
             environment.setStdlib(arguments.stdlib);
         }