Minor reorg. Split the reducer to its own file.

Author: timdorr

.gitignore

@@ -1,3 +1,4 @@
 lib
 node_modules
 coverage
+*.log

src/index.js

@@ -1,9 +1,9 @@
+export syncHistoryWithStore from './sync'
+export { LOCATION_CHANGE, routerReducer } from './reducer'
+
 export {
   UPDATE_LOCATION,
   push, replace, go, goBack, goForward,
   routeActions
 } from './actions'
-
 export routerMiddleware from './middleware'
-
-export { LOCATION_CHANGE, routerReducer, syncHistoryWithStore } from './sync'

src/reducer.js

@@ -0,0 +1,23 @@
+/**
+ * This action type will be dispatched when your history
+ * receives a location change.
+ */
+export const LOCATION_CHANGE = '@@router/LOCATION_CHANGE'
+
+const initialState = {
+  locationBeforeTransitions: null
+}
+
+/**
+ * This reducer will update the state with the most recent location history
+ * has transitioned to. This may not be in sync with the router, particularly
+ * if you have asynchronously-loaded routes, so reading from and relying on
+ * this state it is discouraged.
+ */
+export function routerReducer(state = initialState, { type, locationBeforeTransitions }) {
+  if (type === LOCATION_CHANGE) {
+    return { ...state, locationBeforeTransitions }
+  }
+
+  return state
+}

src/sync.js

@@ -1,29 +1,7 @@
-/**
- * This action type will be dispatched when your history
- * receives a location change.
- */
-export const LOCATION_CHANGE = '@@router/LOCATION_CHANGE'
-
-const initialState = {
-  locationBeforeTransitions: null
-}
+import { LOCATION_CHANGE } from './reducer'
 
 const defaultSelectLocationState = state => state.routing
 
-/**
- * This reducer will update the state with the most recent location history
- * has transitioned to. This may not be in sync with the router, particularly
- * if you have asynchronously-loaded routes, so reading from and relying on
- * this state it is discouraged.
- */
-export function routerReducer(state = initialState, { type, locationBeforeTransitions }) {
-  if (type === LOCATION_CHANGE) {
-    return { ...state, locationBeforeTransitions }
-  }
-
-  return state
-}
-
 /**
  * This function synchronizes your history state with the Redux store.
  * Location changes flow from history to the store. An enhanced history is
@@ -36,7 +14,7 @@ export function routerReducer(state = initialState, { type, locationBeforeTransi
  * event, the router will be updated appropriately and can transition to the
  * correct router state.
  */
-export function syncHistoryWithStore(history, store, {
+export default function syncHistoryWithStore(history, store, {
   selectLocationState = defaultSelectLocationState,
   adjustUrlOnReplay = true
 } = {}) {