Restructure node and change protobuf generation location

.gitignore

@@ -2,5 +2,4 @@ Cargo.lock
 /target
 **/*.rs.bk
 *.swp
-/src/protos
 /docs/build

build.rs

@@ -19,24 +19,29 @@ extern crate protoc_rust;
 
 use protoc_rust::Customize;
 
+use std::env;
 use std::fs;
 use std::fs::File;
-use std::io::prelude::*;
+use std::io::Write;
+use std::path::Path;
 
 fn main() {
-    fs::create_dir_all("src/protos").unwrap();
+    let out_dir = env::var("OUT_DIR").unwrap();
+    let dest_path = Path::new(&out_dir).join("protos");
+    let proto_path = Path::new("./protos");
+    fs::create_dir_all(&dest_path).unwrap();
 
     // Run protoc
     protoc_rust::run(protoc_rust::Args {
-        out_dir: "src/protos",
-        input: &["protos/pbft_message.proto"],
-        includes: &["protos"],
+        out_dir: &dest_path.to_str().unwrap(),
+        input: &[proto_path.join("pbft_message.proto").to_str().unwrap()],
+        includes: &[proto_path.to_str().unwrap()],
         customize: Customize {
             ..Default::default()
         },
     }).expect("Protoc Error");
 
     // Create mod.rs accordingly
-    let mut mod_file = File::create("src/protos/mod.rs").unwrap();
+    let mut mod_file = File::create(dest_path.join("mod.rs")).unwrap();
     mod_file.write_all(b"pub mod pbft_message;\n").unwrap();
 }

src/error.rs

@@ -27,19 +27,6 @@ use protos::pbft_message::PbftBlock;
 
 use message_type::PbftMessageType;
 
-/// Enum for showing the difference between future messages, present messages, and past messages.
-#[derive(Debug, PartialEq)]
-pub enum PbftNotReadyType {
-    /// A future message. The node is not ready to process it yet.
-    PushToBacklog,
-
-    /// A past message. It's possible the node may still need it though, so it is added to the log.
-    AddToLog,
-
-    /// A present message. The node is ready to process this message immediately.
-    Proceed,
-}
-
 /// Errors that might occur in a PbftNode
 #[derive(Debug)]
 pub enum PbftError {