Convert backend code to ES modules

Bundling code now with Rollup for its flat bundling and tree shaking
support. Front end code still goes through Webpack for browser support.

lib/session.js

@@ -18,17 +18,17 @@
  */
 "use strict";
 
-const config = require("./config");
-const common = require("./common");
-const db = require("./db");
-const device = require("./device");
-const sandbox = require("./sandbox");
-const localCache = require("./local-cache");
-const PathSet = require("./path-set");
-const VersionedMap = require("./versioned-map");
-const InstanceSet = require("./instance-set");
-const defaultProvisions = require("./default-provisions");
-const gpnHeuristic = require("./gpn-heuristic");
+import * as config from "./config";
+import * as common from "./common";
+import * as db from "./db";
+import * as device from "./device";
+import * as sandbox from "./sandbox";
+import * as localCache from "./local-cache";
+import * as defaultProvisions from "./default-provisions";
+import { estimateGpnCount } from "./gpn-heuristic";
+import PathSet from "./path-set";
+import VersionedMap from "./versioned-map";
+import InstanceSet from "./instance-set";
 
 function initDeviceData() {
   return {
@@ -41,7 +41,7 @@ function initDeviceData() {
   };
 }
 
-function init(deviceId, cwmpVersion, timeout, callback) {
+export function init(deviceId, cwmpVersion, timeout, callback) {
   const timestamp = Date.now();
   const sessionContext = {
     timestamp: timestamp,
@@ -112,7 +112,7 @@ function generateRpcId(sessionContext) {
   );
 }
 
-function inform(sessionContext, rpcReq, callback) {
+export function inform(sessionContext, rpcReq, callback) {
   const timestamp = sessionContext.timestamp + sessionContext.iteration + 1;
   const params = [
     [
@@ -244,7 +244,7 @@ function inform(sessionContext, rpcReq, callback) {
   });
 }
 
-function transferComplete(sessionContext, rpcReq, callback) {
+export function transferComplete(sessionContext, rpcReq, callback) {
   const revision =
     (sessionContext.revisions[sessionContext.revisions.length - 1] || 0) + 1;
   sessionContext.deviceData.timestamps.revision = revision;
@@ -410,7 +410,7 @@ function revertDownloadParameters(sessionContext, instance, callback) {
   });
 }
 
-function timeoutOperations(sessionContext, callback) {
+export function timeoutOperations(sessionContext, callback) {
   const revision =
     (sessionContext.revisions[sessionContext.revisions.length - 1] || 0) + 1;
   sessionContext.deviceData.timestamps.revision = revision;
@@ -460,7 +460,7 @@ function timeoutOperations(sessionContext, callback) {
   if ((counter -= 2) === 1) callback(null, faults, operations);
 }
 
-function addProvisions(sessionContext, channel, provisions) {
+export function addProvisions(sessionContext, channel, provisions) {
   // Multiply by two because every iteration is two
   // phases: read and update
   const MAX_ITERATIONS =
@@ -513,7 +513,7 @@ function addProvisions(sessionContext, channel, provisions) {
   }
 }
 
-function clearProvisions(sessionContext) {
+export function clearProvisions(sessionContext) {
   // Multiply by two because every iteration is two
   // phases: read and update
   const MAX_ITERATIONS =
@@ -958,7 +958,7 @@ function runDeclarations(sessionContext, declarations) {
   );
 }
 
-function rpcRequest(sessionContext, _declarations, callback) {
+export function rpcRequest(sessionContext, _declarations, callback) {
   if (sessionContext.rpcRequest != null) {
     return void callback(
       null,
@@ -1560,7 +1560,7 @@ function generateGetRpcRequest(sessionContext) {
           const v = syncState.gpnPatterns.get(p);
           if (v) patterns.push([p, (v >> path.length) << path.length]);
         }
-        est = gpnHeuristic.estimateGpnCount(patterns);
+        est = estimateGpnCount(patterns);
       }
 
       if (est < Math.pow(2, Math.max(0, 8 - path.length))) {
@@ -2250,7 +2250,7 @@ function clear(sessionContext, toClear, callback) {
   });
 }
 
-function rpcResponse(sessionContext, id, rpcRes, callback) {
+export function rpcResponse(sessionContext, id, rpcRes, callback) {
   if (id !== generateRpcId(sessionContext))
     return void callback(new Error("Request ID not recognized"));
 
@@ -2583,7 +2583,7 @@ function rpcResponse(sessionContext, id, rpcRes, callback) {
   clear(sessionContext, toClear, callback);
 }
 
-function rpcFault(sessionContext, id, faultResponse, callback) {
+export function rpcFault(sessionContext, id, faultResponse, callback) {
   const rpcReq = sessionContext.rpcRequest;
   delete sessionContext.syncState;
   delete sessionContext.rpcRequest;
@@ -2627,7 +2627,7 @@ function rpcFault(sessionContext, id, faultResponse, callback) {
   callback(null, fault);
 }
 
-function deserialize(sessionContextString, callback) {
+export function deserialize(sessionContextString, callback) {
   const sessionContext = JSON.parse(sessionContextString);
 
   for (const decs of sessionContext.declarations)
@@ -2654,7 +2654,7 @@ function deserialize(sessionContextString, callback) {
   });
 }
 
-function serialize(sessionContext, callback) {
+export function serialize(sessionContext, callback) {
   const deviceData = [];
 
   for (const path of sessionContext.deviceData.paths.find(
@@ -2682,15 +2682,3 @@ function serialize(sessionContext, callback) {
 
   callback(null, sessionContextString);
 }
-
-exports.init = init;
-exports.timeoutOperations = timeoutOperations;
-exports.inform = inform;
-exports.transferComplete = transferComplete;
-exports.addProvisions = addProvisions;
-exports.clearProvisions = clearProvisions;
-exports.rpcRequest = rpcRequest;
-exports.rpcResponse = rpcResponse;
-exports.rpcFault = rpcFault;
-exports.serialize = serialize;
-exports.deserialize = deserialize;