Add codegen debug logging to check CI issues

Summary: Changelog: [Internal]

Reviewed By: fkgozali

Differential Revision: D25874281

fbshipit-source-id: 9cb70c98849ab3eaa0318c88d51210fe9de8bdf5

packages/react-native-codegen/android/gradlePlugin-build/gradlePlugin/src/main/java/com/facebook/react/codegen/plugin/CodegenPlugin.java

@@ -12,6 +12,7 @@ import com.facebook.react.codegen.generator.JavaGenerator;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import java.io.File;
+import org.apache.log4j.Logger;
 import org.gradle.api.GradleException;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
@@ -24,6 +25,8 @@ import org.gradle.api.tasks.Exec;
  */
 public class CodegenPlugin implements Plugin<Project> {
 
+  Logger logger = Logger.getLogger(getClass());
+
   public void apply(final Project project) {
     final CodegenPluginExtension extension =
         project.getExtensions().create("react", CodegenPluginExtension.class, project);
@@ -46,6 +49,8 @@ public class CodegenPlugin implements Plugin<Project> {
                   s -> {
                     generatedSrcDir.delete();
                     generatedSrcDir.mkdirs();
+                    logger.warn(
+                        "[Gradle] Codegen command on execution: " + ((Exec) s).getCommandLine());
                   });
 
               task.getInputs()
@@ -60,15 +65,13 @@ public class CodegenPlugin implements Plugin<Project> {
                               ImmutableList.of("**/*.js"))));
               task.getOutputs().file(generatedSchemaFile);
 
-              ImmutableList<String> execCommands =
-                  new ImmutableList.Builder<String>()
-                      .add("yarn")
-                      .addAll(ImmutableList.copyOf(extension.nodeExecutableAndArgs))
-                      .add(extension.codegenGenerateSchemaCLI().getAbsolutePath())
-                      .add(generatedSchemaFile.getAbsolutePath())
-                      .add(extension.jsRootDir.getAbsolutePath())
-                      .build();
-              task.commandLine(execCommands);
+              task.executable("yarn")
+                  .args(ImmutableList.copyOf(extension.nodeExecutableAndArgs))
+                  .args(extension.codegenGenerateSchemaCLI().getAbsolutePath())
+                  .args(generatedSchemaFile.getAbsolutePath())
+                  .args(extension.jsRootDir.getAbsolutePath());
+
+              logger.warn("[Gradle] Codegen command on configure: " + task.getCommandLine());
             });
 
     // 3. Task: generate Java code from schema.

packages/react-native-codegen/src/cli/combine/combine-js-to-schema-cli.js

@@ -32,6 +32,7 @@ function filterJSFile(file) {
   );
 }
 
+console.log('[JS] Codegen args: ' + process.argv.join(' '));
 const allFiles = [];
 fileList.forEach(file => {
   if (fs.lstatSync(file).isDirectory()) {