Add csharp code-gen time property that allows squashing of namespace folder generation

Author: damageboy

csharp/sbe-dll/sbe-dll.csproj

@@ -13,7 +13,7 @@
  <RepositoryUrl>https://github.com/real-logic/simple-binary-encoding</RepositoryUrl>
  <PackageTags>SBE;Marshaling;Low;Latency;Simple;Binary;Encoding</PackageTags>
  <PackageId>sbe-dll</PackageId>
- <PackageVersion>0.1.12.1-beta-2</PackageVersion>
+ <PackageVersion>0.1.12.1-beta-3</PackageVersion>
  <Title>Simple Binary Encoding for .NET</Title>
  <Description>This package contains all you need to define SBE messages and generate C# encoders and decoders. See https://github.com/real-logic/simple-binary-encoding for more detailed instructions</Description>
  <RepositoryType>git</RepositoryType>

sbe-tool/src/main/java/uk/co/real_logic/sbe/SbeTool.java

@@ -66,6 +66,8 @@
  * <li>
  * <b>sbe.java.generate.group-order.annotation</b>: Should the GroupOrder annotation be added to generated stubs.
  * </li>
+ * <li><b>sbe.csharp.generate.namespace.dir</b>: Should a directory be created for the namespace under
+ * the output directory? Defaults to true</li>
  * <li><b>sbe.keyword.append.token</b>: Token to be appended to keywords.</li>
  * <li><b>sbe.decode.unknown.enum.values</b>: Support unknown decoded enum values.</li>
  * <li><b>sbe.xinclude.aware</b>: Is XInclude supported for the schema. Defaults to false.</li>
@@ -163,6 +165,12 @@ public class SbeTool
  */
  public static final String JAVA_GROUP_ORDER_ANNOTATION = "sbe.java.generate.group-order.annotation";
 
+ /**
+ * Boolean system property to turn on or off generation of namespace directories during csharp code generation.
+ * Defaults to true
+ */
+ public static final String CSHARP_GENERATE_NAMESPACE_DIR = "sbe.csharp.generate.namespace.dir";
+
  /**
  * Specifies token that should be appended to keywords to avoid compilation errors.
  * <p>

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/csharp/CSharpNamespaceOutputManager.java

@@ -24,6 +24,7 @@
 import java.nio.file.Files;
 
 import static java.io.File.separatorChar;
+import static uk.co.real_logic.sbe.SbeTool.CSHARP_GENERATE_NAMESPACE_DIR;
 
 /**
  * {@link OutputManager} for managing the creation of C# source files
@@ -48,7 +49,13 @@ public CSharpNamespaceOutputManager(final String baseDirName, final String packa
  Verify.notNull(packageName, "packageName");
 
  final String dirName = baseDirName.endsWith("" + separatorChar) ? baseDirName : baseDirName + separatorChar;
- final String packageDirName = dirName + packageName.replace('.', '_');
+
+ final String packageComponment =
+ Boolean.parseBoolean(System.getProperty(CSHARP_GENERATE_NAMESPACE_DIR, "true")) ?
+ packageName.replace('.', '_') :
+ "";
+
+ final String packageDirName = dirName + packageComponment;
 
  outputDir = new File(packageDirName);
  if (!outputDir.exists() && !outputDir.mkdirs())