Protobuf (#832)

Add support for ProtoBuf serialization and deserialization

* Add support for additional features in .proto description

Features added: Info, Fixed[Type|Literal], AnalogType, Attach, Params

* Add support for .pb input files

This involves an API change where FIRRTL no longer implicitly adds .fir
to input file names

1 files changed, 4 insertions, 3 deletions

diff --git a/src/main/scala/firrtl/ExecutionOptionsManager.scala b/src/main/scala/firrtl/ExecutionOptionsManager.scala
index f8caf842..bb5e68a3 100644
--- a/src/main/scala/firrtl/ExecutionOptionsManager.scala
+++ b/src/main/scala/firrtl/ExecutionOptionsManager.scala
@@ -225,14 +225,15 @@ extends ComposableOptions {
     }
   }
 
-  /**
-    * build the input file name, taking overriding parameters
+  /** Get the name of the input file
     *
+    * @note Does not implicitly add a file extension to the input file
     * @param optionsManager this is needed to access build function and its common options
     * @return a properly constructed input file name
     */
   def getInputFileName(optionsManager: ExecutionOptionsManager): String = {
-    optionsManager.getBuildFileName("fir", inputFileNameOverride)
+    if (inputFileNameOverride.nonEmpty) inputFileNameOverride
+    else optionsManager.getBuildFileName("fir", inputFileNameOverride)
   }
   /** Get the user-specified [[OutputConfig]]
     *