Update node-gyp for node v12

commit 413b91c
Author: Kirill Fomichev <fanatid@ya.ru>
Date:   Sun Dec 1 08:12:42 2019 +0300

    Remove package-lock.json

commit 79e2901
Author: Kirill Fomichev <fanatid@ya.ru>
Date:   Sun Dec 1 08:06:23 2019 +0300

    Add debug and lock files from package managers to gitignore

commit 86af949
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 02:06:19 2019 +0100

    use let and const everywhere

commit b919cd7
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 01:52:10 2019 +0100

    add node 13 to travis

commit 2dfe826
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 01:50:23 2019 +0100

    reduce needed node version to actual required version

commit b282e5f
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 01:49:14 2019 +0100

    update dependencies

commit 07e5ccb
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 01:43:39 2019 +0100

    add node 5 to travis

commit e69f84c
Author: Jascha <jascha@jaeh.at>
Date:   Sun Dec 1 01:13:00 2019 +0100

    npm audit fix

commit 1022afc
Author: Jascha <jascha@jaeh.at>
Date:   Tue Nov 12 07:39:41 2019 +0100

    remove unsupported node versions

commit 64dea3a
Author: Jascha <jascha@jaeh.at>
Date:   Tue Nov 12 07:27:22 2019 +0100

    use node 12 in appveyor and travis

commit fe7e879
Author: Jascha <jascha@jaeh.at>
Date:   Tue Nov 12 07:20:16 2019 +0100

    update files to pass standard

commit 1c1418d
Author: Jascha <jascha@jaeh.at>
Date:   Tue Nov 12 07:20:05 2019 +0100

    update deps and add package-lock.json

.gitignore

@@ -4,3 +4,6 @@ build
 node_modules
 
 npm-debug.log
+package-lock.json
+yarn-error.log
+yarn.lock

.travis.yml

@@ -4,10 +4,13 @@ os:
   - osx
 language: node_js
 node_js:
+  - "5"
   - "6"
   - "8"
   - "10"
   - "11"
+  - "12"
+  - "13"
 addons:
   apt:
     sources:

appveyor.yml

@@ -3,11 +3,11 @@ build: off
 skip_tags: true
 environment:
   matrix:
-    - nodejs_version: "4"
-    - nodejs_version: "5"
     - nodejs_version: "6"
     - nodejs_version: "7"
     - nodejs_version: "8"
+    - nodejs_version: "10"
+    - nodejs_version: "12"
 platform:
   - x86
   - x64

lib/api/index.js

@@ -1,13 +1,13 @@
 'use strict'
-var createKeccak = require('./keccak')
-var createShake = require('./shake')
+const createKeccak = require('./keccak')
+const createShake = require('./shake')
 
 module.exports = function (KeccakState) {
-  var Keccak = createKeccak(KeccakState)
-  var Shake = createShake(KeccakState)
+  const Keccak = createKeccak(KeccakState)
+  const Shake = createShake(KeccakState)
 
   return function (algorithm, options) {
-    var hash = typeof algorithm === 'string' ? algorithm.toLowerCase() : algorithm
+    const hash = typeof algorithm === 'string' ? algorithm.toLowerCase() : algorithm
     switch (hash) {
       case 'keccak224': return new Keccak(1152, 448, null, 224, options)
       case 'keccak256': return new Keccak(1088, 512, null, 256, options)

lib/api/keccak.js

@@ -1,7 +1,7 @@
 'use strict'
-var Buffer = require('safe-buffer').Buffer
-var Transform = require('stream').Transform
-var inherits = require('inherits')
+const Buffer = require('safe-buffer').Buffer
+const Transform = require('stream').Transform
+const inherits = require('inherits')
 
 module.exports = function (KeccakState) {
   function Keccak (rate, capacity, delimitedSuffix, hashBitLength, options) {
@@ -21,7 +21,7 @@ module.exports = function (KeccakState) {
   inherits(Keccak, Transform)
 
   Keccak.prototype._transform = function (chunk, encoding, callback) {
-    var error = null
+    let error = null
     try {
       this.update(chunk, encoding)
     } catch (err) {
@@ -32,7 +32,7 @@ module.exports = function (KeccakState) {
   }
 
   Keccak.prototype._flush = function (callback) {
-    var error = null
+    let error = null
     try {
       this.push(this.digest())
     } catch (err) {
@@ -57,7 +57,7 @@ module.exports = function (KeccakState) {
     this._finalized = true
 
     if (this._delimitedSuffix) this._state.absorbLastFewBits(this._delimitedSuffix)
-    var digest = this._state.squeeze(this._hashBitLength / 8)
+    let digest = this._state.squeeze(this._hashBitLength / 8)
     if (encoding !== undefined) digest = digest.toString(encoding)
 
     this._resetState()
@@ -73,7 +73,7 @@ module.exports = function (KeccakState) {
 
   // because sometimes we need hash right now and little later
   Keccak.prototype._clone = function () {
-    var clone = new Keccak(this._rate, this._capacity, this._delimitedSuffix, this._hashBitLength, this._options)
+    const clone = new Keccak(this._rate, this._capacity, this._delimitedSuffix, this._hashBitLength, this._options)
     this._state.copy(clone._state)
     clone._finalized = this._finalized
 

lib/api/shake.js

@@ -1,7 +1,7 @@
 'use strict'
-var Buffer = require('safe-buffer').Buffer
-var Transform = require('stream').Transform
-var inherits = require('inherits')
+const Buffer = require('safe-buffer').Buffer
+const Transform = require('stream').Transform
+const inherits = require('inherits')
 
 module.exports = function (KeccakState) {
   function Shake (rate, capacity, delimitedSuffix, options) {
@@ -20,7 +20,7 @@ module.exports = function (KeccakState) {
   inherits(Shake, Transform)
 
   Shake.prototype._transform = function (chunk, encoding, callback) {
-    var error = null
+    let error = null
     try {
       this.update(chunk, encoding)
     } catch (err) {
@@ -52,7 +52,7 @@ module.exports = function (KeccakState) {
       this._state.absorbLastFewBits(this._delimitedSuffix)
     }
 
-    var data = this._state.squeeze(dataByteLength)
+    let data = this._state.squeeze(dataByteLength)
     if (encoding !== undefined) data = data.toString(encoding)
 
     return data
@@ -64,7 +64,7 @@ module.exports = function (KeccakState) {
   }
 
   Shake.prototype._clone = function () {
-    var clone = new Shake(this._rate, this._capacity, this._delimitedSuffix, this._options)
+    const clone = new Shake(this._rate, this._capacity, this._delimitedSuffix, this._options)
     this._state.copy(clone._state)
     clone._finalized = this._finalized
 

lib/keccak-state-reference.js

@@ -1,6 +1,6 @@
 'use strict'
-var P1600_RHO_OFFSETS = [0, 1, 62, 28, 27, 36, 44, 6, 55, 20, 3, 10, 43, 25, 39, 41, 45, 15, 21, 8, 18, 2, 61, 56, 14]
-var P1600_ROUND_CONSTANTS = [
+const P1600_RHO_OFFSETS = [0, 1, 62, 28, 27, 36, 44, 6, 55, 20, 3, 10, 43, 25, 39, 41, 45, 15, 21, 8, 18, 2, 61, 56, 14]
+const P1600_ROUND_CONSTANTS = [
   0x00000001, 0x00000000,
   0x00008082, 0x00000000,
   0x0000808a, 0x80000000,
@@ -28,7 +28,7 @@ var P1600_ROUND_CONSTANTS = [
 ]
 
 function p1600 (state) {
-  for (var round = 0; round < 24; ++round) {
+  for (let round = 0; round < 24; ++round) {
     theta(state)
     rho(state)
     pi(state)
@@ -39,64 +39,64 @@ function p1600 (state) {
 
 // steps
 function theta (s) {
-  var clo = [0, 0, 0, 0, 0]
-  var chi = [0, 0, 0, 0, 0]
+  const clo = [0, 0, 0, 0, 0]
+  const chi = [0, 0, 0, 0, 0]
 
-  for (var x = 0; x < 5; ++x) {
-    for (var y = 0; y < 5; ++y) {
+  for (let x = 0; x < 5; ++x) {
+    for (let y = 0; y < 5; ++y) {
       clo[x] ^= s[ilo(x, y)]
       chi[x] ^= s[ihi(x, y)]
     }
   }
 
-  for (x = 0; x < 5; ++x) {
-    var next = (x + 1) % 5
-    var prev = (x + 4) % 5
-    var dlo = rol64lo(clo[next], chi[next], 1) ^ clo[prev]
-    var dhi = rol64hi(clo[next], chi[next], 1) ^ chi[prev]
+  for (let x = 0; x < 5; ++x) {
+    const next = (x + 1) % 5
+    const prev = (x + 4) % 5
+    const dlo = rol64lo(clo[next], chi[next], 1) ^ clo[prev]
+    const dhi = rol64hi(clo[next], chi[next], 1) ^ chi[prev]
 
-    for (y = 0; y < 5; ++y) {
+    for (let y = 0; y < 5; ++y) {
       s[ilo(x, y)] ^= dlo
       s[ihi(x, y)] ^= dhi
     }
   }
 }
 
 function rho (s) {
-  for (var x = 0; x < 5; ++x) {
-    for (var y = 0; y < 5; ++y) {
-      var lo = rol64lo(s[ilo(x, y)], s[ihi(x, y)], P1600_RHO_OFFSETS[index(x, y)])
-      var hi = rol64hi(s[ilo(x, y)], s[ihi(x, y)], P1600_RHO_OFFSETS[index(x, y)])
+  for (let x = 0; x < 5; ++x) {
+    for (let y = 0; y < 5; ++y) {
+      const lo = rol64lo(s[ilo(x, y)], s[ihi(x, y)], P1600_RHO_OFFSETS[index(x, y)])
+      const hi = rol64hi(s[ilo(x, y)], s[ihi(x, y)], P1600_RHO_OFFSETS[index(x, y)])
       s[ilo(x, y)] = lo
       s[ihi(x, y)] = hi
     }
   }
 }
 
 function pi (s) {
-  var ts = s.slice()
+  const ts = s.slice()
 
-  for (var x = 0; x < 5; ++x) {
-    for (var y = 0; y < 5; ++y) {
-      var nx = (0 * x + 1 * y) % 5
-      var ny = (2 * x + 3 * y) % 5
+  for (let x = 0; x < 5; ++x) {
+    for (let y = 0; y < 5; ++y) {
+      const nx = (0 * x + 1 * y) % 5
+      const ny = (2 * x + 3 * y) % 5
       s[ilo(nx, ny)] = ts[ilo(x, y)]
       s[ihi(nx, ny)] = ts[ihi(x, y)]
     }
   }
 }
 
 function chi (s) {
-  var clo = [0, 0, 0, 0, 0]
-  var chi = [0, 0, 0, 0, 0]
+  const clo = [0, 0, 0, 0, 0]
+  const chi = [0, 0, 0, 0, 0]
 
-  for (var y = 0; y < 5; ++y) {
-    for (var x = 0; x < 5; ++x) {
+  for (let y = 0; y < 5; ++y) {
+    for (let x = 0; x < 5; ++x) {
       clo[x] = s[ilo(x, y)] ^ (~s[ilo((x + 1) % 5, y)] & s[ilo((x + 2) % 5, y)])
       chi[x] = s[ihi(x, y)] ^ (~s[ihi((x + 1) % 5, y)] & s[ihi((x + 2) % 5, y)])
     }
 
-    for (x = 0; x < 5; ++x) {
+    for (let x = 0; x < 5; ++x) {
       s[ilo(x, y)] = clo[x]
       s[ihi(x, y)] = chi[x]
     }
@@ -115,7 +115,7 @@ function ihi (x, y) { return index(x, y) * 2 + 1 }
 
 function rol64lo (lo, hi, shift) {
   if (shift >= 32) {
-    var t = lo
+    const t = lo
     lo = hi
     hi = t
     shift -= 32
@@ -126,7 +126,7 @@ function rol64lo (lo, hi, shift) {
 
 function rol64hi (lo, hi, shift) {
   if (shift >= 32) {
-    var t = lo
+    const t = lo
     lo = hi
     hi = t
     shift -= 32