REDUCE build-size

package.json

@@ -31,7 +31,8 @@
     "build:es6": "rimraf -rf dist/es && cross-env NODE_ENV=es6 babel src --out-dir dist/es",
     "build:es5": "cross-env NODE_ENV=es5 node node_modules/babel-cli/bin/babel.js src --out-dir dist/lib",
     "build:test": "cross-env NODE_ENV=es5 node node_modules/babel-cli/bin/babel.js test --out-dir test_tmp",
-    "build": "npm run clear && concurrently \"npm run build:es6\" \"npm run build:es5\" \"npm run build:test\" \"npm run build:sol\""
+    "build": "npm run clear && concurrently \"npm run build:es6\" \"npm run build:es5\" \"npm run build:test\" \"npm run build:sol\"",
+    "disc": "npm run build && browserify dist/lib/index.js --no-builtins --full-paths | uglifyjs --compress --mangle | discify --open --full-paths"
   },
   "repository": {
     "type": "git",
@@ -70,9 +71,10 @@
     "concurrently": "3.5.1",
     "convert-hrtime": "2.0.0",
     "cross-env": "5.1.6",
+    "disc": "1.3.3",
     "eslint": "4.19.1",
     "ganache-cli": "6.1.0",
-    "gzip-size-cli": "^2.1.0",
+    "gzip-size-cli": "2.1.0",
     "is-node": "1.0.2",
     "js-sha3": "0.7.0",
     "karma": "2.0.2",

perf.txt

@@ -0,0 +1,3 @@
+=== build size
+BEFORE: 140000
+AFTER: 123499

src/calculate-contract-address.js

@@ -1,14 +1,17 @@
-import ethUtil from 'ethereumjs-util';
+import {
+    generateAddress,
+    toChecksumAddress
+} from 'ethereumjs-util';
 
 
 export default function calculateContractAddress(
     creatorAddress,
     nonce
 ) {
-    const addressBuffer = ethUtil.generateAddress(
+    const addressBuffer = generateAddress(
         creatorAddress,
         nonce
     );
     const address = addressBuffer.toString('hex');
-    return ethUtil.toChecksumAddress(address);
+    return toChecksumAddress(address);
 }

src/create-identity.js

@@ -1,13 +1,15 @@
 import publicKeyByPrivateKey from './public-key-by-private-key';
 
-import Account from 'eth-lib/lib/account';
+import {
+    create as createAccount
+} from 'eth-lib/lib/account';
 
 /**
  * creates a new object with
  * private-, public-Key and address
  */
 export default function createIdentity() {
-    const identity = Account.create();
+    const identity = createAccount();
     identity.publicKey = publicKeyByPrivateKey(identity.privateKey);
     return identity;
 }

src/decrypt-with-private-key.js

@@ -1,4 +1,6 @@
-import eccrypto from 'eccrypto';
+import {
+    decrypt
+} from 'eccrypto';
 import {
     parse
 } from './cipher';
@@ -6,7 +8,7 @@ import {
     removeTrailing0x
 } from './util';
 
-export default async function decryptWithPrivateKey(privateKey, encrypted) {
+export default function decryptWithPrivateKey(privateKey, encrypted) {
 
     encrypted = parse(encrypted);
 
@@ -20,9 +22,9 @@ export default async function decryptWithPrivateKey(privateKey, encrypted) {
         mac: new Buffer(encrypted.mac, 'hex')
     };
 
-    const decryptedBuffer = await eccrypto.decrypt(
+
+    return decrypt(
         new Buffer(twoStripped, 'hex'),
         encryptedBuffer
-    );
-    return decryptedBuffer.toString();
+    ).then(decryptedBuffer => decryptedBuffer.toString());
 }

src/encrypt-with-public-key.js

@@ -1,9 +1,11 @@
-import eccrypto from 'eccrypto';
+import {
+    encrypt
+} from 'eccrypto';
 import {
     decompress
 } from './public-key';
 
-export default async function encryptWithPublicKey(publicKey, message) {
+export default function encryptWithPublicKey(publicKey, message) {
 
     // ensure its an uncompressed publicKey
     publicKey = decompress(publicKey);
@@ -11,16 +13,17 @@ export default async function encryptWithPublicKey(publicKey, message) {
     // re-add the compression-flag
     const pubString = '04' + publicKey;
 
-    const encryptedBuffers = await eccrypto.encrypt(
+
+    return encrypt(
         new Buffer(pubString, 'hex'),
         Buffer(message)
-    );
-
-    const encrypted = {
-        iv: encryptedBuffers.iv.toString('hex'),
-        ephemPublicKey: encryptedBuffers.ephemPublicKey.toString('hex'),
-        ciphertext: encryptedBuffers.ciphertext.toString('hex'),
-        mac: encryptedBuffers.mac.toString('hex')
-    };
-    return encrypted;
+    ).then(encryptedBuffers => {
+        const encrypted = {
+            iv: encryptedBuffers.iv.toString('hex'),
+            ephemPublicKey: encryptedBuffers.ephemPublicKey.toString('hex'),
+            ciphertext: encryptedBuffers.ciphertext.toString('hex'),
+            mac: encryptedBuffers.mac.toString('hex')
+        };
+        return encrypted;
+    });
 }

src/public-key-by-private-key.js

@@ -1,4 +1,6 @@
-import EthUtil from 'ethereumjs-util';
+import {
+    privateToPublic
+} from 'ethereumjs-util';
 import {
     addTrailing0x
 } from './util';
@@ -11,6 +13,6 @@ import {
  */
 export default function publicKeyOfPrivateKey(privateKey) {
     privateKey = addTrailing0x(privateKey);
-    const publicKeyBuffer = EthUtil.privateToPublic(privateKey);
+    const publicKeyBuffer = privateToPublic(privateKey);
     return publicKeyBuffer.toString('hex');
 }

src/public-key.js

@@ -1,7 +1,10 @@
 import {
     publicKeyConvert
 } from 'secp256k1';
-import ethUtil from 'ethereumjs-util';
+import {
+    pubToAddress,
+    toChecksumAddress
+} from 'ethereumjs-util';
 
 export function compress(startsWith04) {
 
@@ -42,7 +45,7 @@ export function toAddress(publicKey) {
     // normalize key
     publicKey = decompress(publicKey);
 
-    const addressBuffer = ethUtil.pubToAddress(new Buffer(publicKey, 'hex'));
-    const checkSumAdress = ethUtil.toChecksumAddress(addressBuffer.toString('hex'));
+    const addressBuffer = pubToAddress(new Buffer(publicKey, 'hex'));
+    const checkSumAdress = toChecksumAddress(addressBuffer.toString('hex'));
     return checkSumAdress;
 }

src/vrs.js

@@ -1,4 +1,7 @@
-import Account from 'eth-lib/lib/account';
+import {
+    decodeSignature,
+    encodeSignature
+} from 'eth-lib/lib/account';
 
 /**
  * split signature-hex into parts
@@ -6,7 +9,7 @@ import Account from 'eth-lib/lib/account';
  * @return {{v: string, r: string, s: string}}
  */
 export function fromString(hexString) {
-    const arr = Account.decodeSignature(hexString);
+    const arr = decodeSignature(hexString);
     return {
         v: arr[0],
         r: arr[1],
@@ -21,5 +24,5 @@ export function fromString(hexString) {
  */
 export function toString(sig) {
     const partsArray = [sig.v, sig.r, sig.s];
-    return Account.encodeSignature(partsArray);
+    return encodeSignature(partsArray);
 }