Update README.md

add km2 in the stats file to log tile dimension

.eslintrc

@@ -1,3 +1,6 @@
 {
-  "extends": "eslint-config-unstyled"
+  "extends": "eslint-config-unstyled",
+  "parserOptions": {
+    "ecmaVersion": 9
+  }
 }

.travis.yml

@@ -3,6 +3,6 @@ language: node_js
 sudo: false
 
 node_js:
- - "6"
- - "8"
  - "10"
+ - "12"
+ - "14"

CHANGELOG.md

@@ -1,3 +1,15 @@
+# 0.12.2
+ - collects stats in terms of KM2 in a stats file
+
+# 0.12.1
+ - collects stats about tile in a file
+
+# 0.12.0
+
+- Remove support for node versions < 10
+- Add support for node v12, v14
+- Upgrade to sqlite3@5.0.0
+
 # 0.11.0
 
 ## Breaking changes

README.md

@@ -1,8 +1,8 @@
 # mbtiles
 
-Node.js utilities and [tilelive](https://github.com/mapbox/tilelive.js) integration for the [MBTiles](http://mbtiles.org) format.
+Node.js utilities and [tilelive](https://github.com/mapbox/tilelive.js) integration for the [MBTiles](https://github.com/mapbox/mbtiles-spec) format.
 
-[![Build Status](https://travis-ci.org/mapbox/node-mbtiles.svg?branch=master)](https://travis-ci.org/mapbox/node-mbtiles)
+[![Build Status](https://travis-ci.com/mapbox/node-mbtiles.svg?branch=master)](https://travis-ci.com/mapbox/node-mbtiles)
 [![Build status](https://ci.appveyor.com/api/projects/status/04wbok5rs3eroffe)](https://ci.appveyor.com/project/Mapbox/node-mbtiles)
 
 # Installation
@@ -29,9 +29,9 @@ new MBTiles('./path/to/file.mbtiles?mode={ro, rw, rwc}', function(err, mbtiles)
 
 The `mode` query parameter is a opening flag of mbtiles. It is optional, default as `rwc`. Available flags are:
 
-- `ro`: readonly mode, will throw error if the mbtiles is not existed.
-- `rw`: read and write mode, will throw error if the mbtiles is not existed.
-- `rwc`: read, write and create mode, will create a new mbtiles if the mbtiles is not existed.
+- `ro`: readonly mode, will throw error if the mbtiles does not exist.
+- `rw`: read and write mode, will throw error if the mbtiles does not exist.
+- `rwc`: read, write and create mode, will create a new mbtiles if the mbtiles does not exist.
 
 ### Reading
 

appveyor.yml

@@ -1,8 +1,8 @@
 environment:
   matrix:
-    - nodejs_version: 6
-    - nodejs_version: 8
     - nodejs_version: 10
+    - nodejs_version: 12
+    - nodejs_version: 14
 
 platform:
   - x86

lib/mbtiles.js

@@ -10,6 +10,18 @@ var sqlite3 = require('sqlite3');
 var tiletype = require('@mapbox/tiletype');
 var ZXYStream = require('./zxystream');
 var queue = require('d3-queue').queue;
+var os = require('os');
+var utils = require('./utils.js');
+
+if (process.env.BRIDGE_LOG_MAX_VTILE_BYTES_COMPRESSED) {
+    var stats = { max:0, total:0, count:0 };
+    process.on('exit', function() {
+        if (stats.count > 0) {
+            fs.writeFileSync(os.tmpdir() + '/tilelive-bridge-stats.json', JSON.stringify(stats));
+        }
+    });
+}
+
 
 function noop(err) {
     if (err) throw err;
@@ -160,6 +172,7 @@ MBTiles.prototype.getTile = function(z, x, y, callback) {
 
     var sql = 'SELECT tile_data FROM tiles WHERE zoom_level = ? AND tile_column = ? AND tile_row = ?';
     var mbtiles = this;
+
     this._db.get(sql, z, x, y, function(err, row) {
         if ((!err && !row) || (err && err.errno == 1)) {
             return callback(new Error('Tile does not exist'));
@@ -173,6 +186,23 @@ MBTiles.prototype.getTile = function(z, x, y, callback) {
             var headers = tiletype.headers(row.tile_data);
             headers['Last-Modified'] = new Date(mbtiles._stat.mtime).toUTCString();
             headers['ETag'] = mbtiles._stat.size + '-' + Number(mbtiles._stat.mtime);
+            if (process.env.BRIDGE_LOG_MAX_VTILE_BYTES_COMPRESSED) {
+                var tileDataLength = row.tile_data.length;
+                stats.count++;
+                stats.total = stats.total + (tileDataLength * 0.001);
+                if (stats.max < tileDataLength) {
+                    stats.max = tileDataLength;
+                }
+                var area = stats.hasOwnProperty(z)
+                    ? stats[z] + utils.calculateTileArea(z, x, y)
+                    : utils.calculateTileArea(z, x, y);
+
+                stats = {
+                    ...stats,
+                    [z]: area
+                };
+
+            }
             return callback(null, row.tile_data, headers);
         }
     });

lib/utils.js

@@ -0,0 +1,35 @@
+'use strict'
+
+var EARTH_RADIUS = 6371.0088;
+
+function degToRad(degrees) {
+    return degrees * (Math.PI / 180);
+}
+
+function tileToLon(tileX, zoom) {
+    return ((tileX / 2**zoom) * 360.0) - 180.0;
+}
+
+function tileToLat(tileY, zoom) {
+    var n = Math.PI - 2 * Math.PI * tileY / 2**zoom;
+    return (180.0 / Math.PI) * Math.atan(0.5 * (Math.exp(n) - Math.exp(-n)));
+}
+
+/**
+ *
+ * @param {Number} zoom
+ * @param {Number} tileX
+ * @param {Number} tileY
+ * @returns {Number} SqKM of a given tile
+ */
+function calculateTileArea(zoom, tileX, tileY) {
+    var left = degToRad(tileToLon(tileX, zoom));
+    var top = degToRad(tileToLat(tileY, zoom));
+    var right = degToRad(tileToLon(tileX + 1, zoom));
+    var bottom = degToRad(tileToLat(tileY + 1, zoom));
+    return (Math.PI / degToRad(180)) * EARTH_RADIUS**2 * Math.abs(Math.sin(top) - Math.sin(bottom)) * Math.abs(left - right);
+}
+
+module.exports = {
+    calculateTileArea
+};

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mapbox/mbtiles",
-  "version": "0.11.0",
+  "version": "0.12.2",
   "description": "Utilities and tilelive integration for the MBTiles format.",
   "url": "http://github.com/mapbox/node-mbtiles",
   "author": "Mapbox (https://www.mapbox.com)",
@@ -31,15 +31,16 @@
     "@mapbox/sphericalmercator": "~1.1.0",
     "@mapbox/tiletype": "0.3.x",
     "d3-queue": "~3.0.7",
-    "sqlite3": "4.x"
+    "sqlite3": "^5.0.0"
   },
   "devDependencies": {
     "eslint": "~5.16.0",
     "eslint-config-unstyled": "^1.1.0",
+    "sinon": "^9.0.2",
     "tape": "~4.10.1"
   },
   "engines": {
-    "node": ">= 6"
+    "node": ">= 10"
   },
   "scripts": {
     "test": "eslint lib && tape test/*.js"

test/zztile.sqkm.test.js

@@ -0,0 +1,61 @@
+'use strict';
+require('sqlite3').verbose();
+var tape = require('tape');
+var fs = require('fs');
+var os = require('os');
+var sinon = require('sinon');
+
+var fixtures = {
+    plain_1: __dirname + '/fixtures/plain_1.mbtiles'
+};
+
+tape('[tile.sqkm] should log sqkm in a stats file', function (assert) {
+    delete require.cache[require.resolve('..')];
+    process.env.BRIDGE_LOG_MAX_VTILE_BYTES_COMPRESSED = 1;
+    var MBTiles = require('../lib/mbtiles');
+    sinon.stub(process, 'exit');
+    process.on('exit', function() {
+        var assert = require('assert');
+        var expectedStats = {
+            '0': 508164394.24620897,
+            max: 7072,
+            total: 7.072,
+            count: 1
+        };
+
+        var actualStats = JSON.parse(fs.readFileSync(os.tmpdir() + '/tilelive-bridge-stats.json').toString());
+        assert.deepEqual(expectedStats, actualStats, 'stats should match');
+        fs.unlinkSync(os.tmpdir() + '/tilelive-bridge-stats.json');
+        delete process.env.BRIDGE_LOG_MAX_VTILE_BYTES_COMPRESSED;
+    });
+    new Promise(function (resolve, reject) {
+        new MBTiles(fixtures.plain_1, function (err, mbTiles) {
+            if (err) reject(err);
+            resolve(mbTiles);
+        });
+    })
+        .then(function (mbTiles) {
+            return new Promise(function (resolve, reject) {
+                mbTiles.getTile(0, 0, 0, function (error, tile, headers) {
+                    if (error) {
+                        assert.ifErr(error, 'should be empty');
+                        reject(error);
+                    }
+                    assert.deepEqual(
+                        tile,
+                        fs.readFileSync(
+                            __dirname + '/fixtures/images/plain_1_0_0_0.png'
+                        )
+                    );
+                    resolve(null);
+                });
+            });
+        })
+        .catch(function (error) {
+            console.log(error);
+        })
+        .finally(function () {
+            assert.end();
+            process.exit();
+        });
+});

yarn.lock

@@ -28,6 +28,42 @@
   resolved "https://registry.yarnpkg.com/@mapbox/tiletype/-/tiletype-0.3.1.tgz#1a1498f6a1b777630e0b4d3a2fed9d94959560cc"
   integrity sha1-GhSY9qG3d2MOC006L+2dlJWVYMw=
 
+"@sinonjs/commons@^1", "@sinonjs/commons@^1.6.0", "@sinonjs/commons@^1.7.0", "@sinonjs/commons@^1.7.2":
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.8.0.tgz#c8d68821a854c555bba172f3b06959a0039b236d"
+  integrity sha512-wEj54PfsZ5jGSwMX68G8ZXFawcSglQSXqCftWX3ec8MDUzQdHgcKvw97awHbY0efQEL5iKUOAmmVtoYgmrSG4Q==
+  dependencies:
+    type-detect "4.0.8"
+
+"@sinonjs/fake-timers@^6.0.0", "@sinonjs/fake-timers@^6.0.1":
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/@sinonjs/fake-timers/-/fake-timers-6.0.1.tgz#293674fccb3262ac782c7aadfdeca86b10c75c40"
+  integrity sha512-MZPUxrmFubI36XS1DI3qmI0YdN1gks62JtFZvxR67ljjSNCeK6U08Zx4msEWOXuofgqUt6zPHSi1H9fbjR/NRA==
+  dependencies:
+    "@sinonjs/commons" "^1.7.0"
+
+"@sinonjs/formatio@^5.0.1":
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/@sinonjs/formatio/-/formatio-5.0.1.tgz#f13e713cb3313b1ab965901b01b0828ea6b77089"
+  integrity sha512-KaiQ5pBf1MpS09MuA0kp6KBQt2JUOQycqVG1NZXvzeaXe5LGFqAKueIS0bw4w0P9r7KuBSVdUk5QjXsUdu2CxQ==
+  dependencies:
+    "@sinonjs/commons" "^1"
+    "@sinonjs/samsam" "^5.0.2"
+
+"@sinonjs/samsam@^5.0.2", "@sinonjs/samsam@^5.0.3":
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/@sinonjs/samsam/-/samsam-5.0.3.tgz#86f21bdb3d52480faf0892a480c9906aa5a52938"
+  integrity sha512-QucHkc2uMJ0pFGjJUDP3F9dq5dx8QIaqISl9QgwLOh6P9yv877uONPGXh/OH/0zmM3tW1JjuJltAZV2l7zU+uQ==
+  dependencies:
+    "@sinonjs/commons" "^1.6.0"
+    lodash.get "^4.4.2"
+    type-detect "^4.0.8"
+
+"@sinonjs/text-encoding@^0.7.1":
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
+  integrity sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -144,6 +180,13 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
+block-stream@*:
+  version "0.0.9"
+  resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
+  integrity sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=
+  dependencies:
+    inherits "~2.0.0"
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -304,6 +347,11 @@ detect-libc@^1.0.2:
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
+diff@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
+  integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
+
 doctrine@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-3.0.0.tgz#addebead72a6574db783639dc87a121773973961"
@@ -364,14 +412,16 @@ eslint-scope@^4.0.3:
     estraverse "^4.1.1"
 
 eslint-utils@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.3.1.tgz#9a851ba89ee7c460346f97cf8939c7298827e512"
-  integrity sha512-Z7YjnIldX+2XMcjr7ZkgEsOj/bREONV60qYeB/bjMAqqqZ4zxKyWX+BOUkdmRmA9riiIPVvo5x86m5elviOk0Q==
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.4.3.tgz#74fec7c54d0776b6f67e0251040b5806564e981f"
+  integrity sha512-fbBN5W2xdY45KulGXmLHZ3c3FHfVYmKg0IrAKGOkT/464PQsx2UeIzfz1RmEci+KLm1bBaAzZAh8+/E+XAeZ8Q==
+  dependencies:
+    eslint-visitor-keys "^1.1.0"
 
-eslint-visitor-keys@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
-  integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
+eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
+  integrity sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==
 
 eslint@~5.16.0:
   version "5.16.0"
@@ -553,6 +603,16 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
+fstream@^1.0.0, fstream@^1.0.12:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.12.tgz#4e8ba8ee2d48be4f7d0de505455548eae5932045"
+  integrity sha512-WvJ193OHa0GHPEL+AycEJgxvBEwyfRkN1vhjca23OaPVMCaLCXTd5qAu82AjTcgP1UJmytkOKb63Ypde7raDIg==
+  dependencies:
+    graceful-fs "^4.1.2"
+    inherits "~2.0.0"
+    mkdirp ">=0.5 0"
+    rimraf "2"
+
 function-bind@^1.0.2, function-bind@^1.1.1, function-bind@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
@@ -584,6 +644,18 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
+glob@^7.0.3:
+  version "7.1.6"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
+  integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 glob@^7.1.2, glob@^7.1.3, glob@~7.1.3:
   version "7.1.4"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.4.tgz#aa608a2f6c577ad357e1ae5a5c26d9a8d1969255"
@@ -601,6 +673,11 @@ globals@^11.7.0:
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
   integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
 
+graceful-fs@^4.1.2:
+  version "4.2.4"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.4.tgz#2256bde14d3632958c465ebc96dc467ca07a29fb"
+  integrity sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==
+
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -619,6 +696,11 @@ has-flag@^3.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
   integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
 
+has-flag@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-4.0.0.tgz#944771fd9c81c81265c4d6941860da06bb59479b"
+  integrity sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==
+
 has-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
@@ -690,6 +772,11 @@ inherits@2, inherits@~2.0.3:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
+inherits@~2.0.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
 ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
@@ -760,6 +847,11 @@ is-typedarray@~1.0.0:
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+isarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
+
 isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -823,6 +915,11 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+just-extend@^4.0.2:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/just-extend/-/just-extend-4.1.0.tgz#7278a4027d889601640ee0ce0e5a00b992467da4"
+  integrity sha512-ApcjaOdVTJ7y4r08xI5wIqpvwS48Q0PBG4DJROcEkH1f8MdAiNFyFxz3xoL0LWAVwjrwPYZdVHHxhRHcx/uGLA==
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -831,6 +928,11 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lodash.get@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
+  integrity sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=
+
 lodash@^4.17.11:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
@@ -870,6 +972,11 @@ minimist@^1.2.0, minimist@~1.2.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
 minipass@^2.2.1, minipass@^2.3.4:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
@@ -885,6 +992,13 @@ minizlib@^1.1.1:
   dependencies:
     minipass "^2.2.1"
 
+"mkdirp@>=0.5 0":
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
+  dependencies:
+    minimist "^1.2.5"
+
 mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
@@ -902,11 +1016,6 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-nan@^2.12.1:
-  version "2.13.2"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
-  integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
-
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -926,6 +1035,40 @@ nice-try@^1.0.4:
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
+nise@^4.0.1:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/nise/-/nise-4.0.4.tgz#d73dea3e5731e6561992b8f570be9e363c4512dd"
+  integrity sha512-bTTRUNlemx6deJa+ZyoCUTRvH3liK5+N6VQZ4NIw90AgDXY6iPnsqplNFf6STcj+ePk0H/xqxnP75Lr0J0Fq3A==
+  dependencies:
+    "@sinonjs/commons" "^1.7.0"
+    "@sinonjs/fake-timers" "^6.0.0"
+    "@sinonjs/text-encoding" "^0.7.1"
+    just-extend "^4.0.2"
+    path-to-regexp "^1.7.0"
+
+node-addon-api@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.0.tgz#f9afb8d777a91525244b01775ea0ddbe1125483b"
+  integrity sha512-ASCL5U13as7HhOExbT6OlWJJUV/lLzL2voOSP1UVehpRD8FbSrSDjfScK/KwAvVTI5AS6r4VwbOMlIqtvRidnA==
+
+node-gyp@3.x:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.8.0.tgz#540304261c330e80d0d5edce253a68cb3964218c"
+  integrity sha512-3g8lYefrRRzvGeSowdJKAKyks8oUpLEd/DyPV4eMhVlhJ0aNaZqIrNUIPuEWWTAoPqyFkfGrM67MC69baqn6vA==
+  dependencies:
+    fstream "^1.0.0"
+    glob "^7.0.3"
+    graceful-fs "^4.1.2"
+    mkdirp "^0.5.0"
+    nopt "2 || 3"
+    npmlog "0 || 1 || 2 || 3 || 4"
+    osenv "0"
+    request "^2.87.0"
+    rimraf "2"
+    semver "~5.3.0"
+    tar "^2.0.0"
+    which "1"
+
 node-pre-gyp@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.11.0.tgz#db1f33215272f692cd38f03238e3e9b47c5dd054"
@@ -942,6 +1085,13 @@ node-pre-gyp@^0.11.0:
     semver "^5.3.0"
     tar "^4"
 
+"nopt@2 || 3":
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
+  integrity sha1-xkZdvwirzU2zWTF/eaxopkayj/k=
+  dependencies:
+    abbrev "1"
+
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -963,7 +1113,7 @@ npm-packlist@^1.1.6:
     ignore-walk "^3.0.1"
     npm-bundled "^1.0.1"
 
-npmlog@^4.0.2:
+"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
@@ -1034,7 +1184,7 @@ os-tmpdir@^1.0.0, os-tmpdir@~1.0.2:
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
   integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
 
-osenv@^0.1.4:
+osenv@0, osenv@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
   integrity sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==
@@ -1069,6 +1219,13 @@ path-parse@^1.0.6:
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
   integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
 
+path-to-regexp@^1.7.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-1.8.0.tgz#887b3ba9d84393e87a0a0b9f4cb756198b53548a"
+  integrity sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==
+  dependencies:
+    isarray "0.0.1"
+
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -1190,6 +1347,13 @@ resumer@~0.0.0:
   dependencies:
     through "~2.3.4"
 
+rimraf@2:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
+  integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
+  dependencies:
+    glob "^7.1.3"
+
 rimraf@2.6.3, rimraf@^2.6.1:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
@@ -1231,6 +1395,11 @@ semver@^5.3.0, semver@^5.5.0, semver@^5.5.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.0.tgz#790a7cf6fea5459bac96110b29b60412dc8ff96b"
   integrity sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==
 
+semver@~5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
+  integrity sha1-myzl094C0XxgEq0yaqa00M9U+U8=
+
 set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -1253,6 +1422,19 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
+sinon@^9.0.2:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-9.0.2.tgz#b9017e24633f4b1c98dfb6e784a5f0509f5fd85d"
+  integrity sha512-0uF8Q/QHkizNUmbK3LRFqx5cpTttEVXudywY9Uwzy8bTfZUhljZ7ARzSxnRHWYWtVTeh4Cw+tTb3iU21FQVO9A==
+  dependencies:
+    "@sinonjs/commons" "^1.7.2"
+    "@sinonjs/fake-timers" "^6.0.1"
+    "@sinonjs/formatio" "^5.0.1"
+    "@sinonjs/samsam" "^5.0.3"
+    diff "^4.0.2"
+    nise "^4.0.1"
+    supports-color "^7.1.0"
+
 slice-ansi@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-2.1.0.tgz#cacd7693461a637a5788d92a7dd4fba068e81636"
@@ -1267,14 +1449,15 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
-sqlite3@4.x:
-  version "4.0.7"
-  resolved "https://registry.yarnpkg.com/sqlite3/-/sqlite3-4.0.7.tgz#d3ba009de040198199dfbe6549126aa2a17b26d5"
-  integrity sha512-TGEeSBB8O48bEu8KUUMqzeB22WrfTxzhIf0lFm8wLTo3a6yJBonF2sPKMYrYtOne1F1t9AHAEn+DTISq8WebQg==
+sqlite3@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/sqlite3/-/sqlite3-5.0.0.tgz#1bfef2151c6bc48a3ab1a6c126088bb8dd233566"
+  integrity sha512-rjvqHFUaSGnzxDy2AHCwhHy6Zp6MNJzCPGYju4kD8yi6bze4d1/zMTg6C7JI49b7/EM7jKMTvyfN/4ylBKdwfw==
   dependencies:
-    nan "^2.12.1"
+    node-addon-api "2.0.0"
     node-pre-gyp "^0.11.0"
-    request "^2.87.0"
+  optionalDependencies:
+    node-gyp "3.x"
 
 sshpk@^1.7.0:
   version "1.16.1"
@@ -1366,6 +1549,13 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
+supports-color@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-7.1.0.tgz#68e32591df73e25ad1c4b49108a2ec507962bfd1"
+  integrity sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==
+  dependencies:
+    has-flag "^4.0.0"
+
 table@^5.2.3:
   version "5.3.2"
   resolved "https://registry.yarnpkg.com/table/-/table-5.3.2.tgz#3aab56a41b2905bf66a6a006bd716fa1e78d4702"
@@ -1395,6 +1585,15 @@ tape@~4.10.1:
     string.prototype.trim "~1.1.2"
     through "~2.3.8"
 
+tar@^2.0.0:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.2.tgz#0ca8848562c7299b8b446ff6a4d60cdbb23edc40"
+  integrity sha512-FCEhQ/4rE1zYv9rYXJw/msRqsnmlje5jHP6huWeBZ704jUTy02c5AZyWujpMR1ax6mVw9NyJMfuK2CMDWVIfgA==
+  dependencies:
+    block-stream "*"
+    fstream "^1.0.12"
+    inherits "2"
+
 tar@^4:
   version "4.4.8"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.8.tgz#b19eec3fde2a96e64666df9fdb40c5ca1bc3747d"
@@ -1457,6 +1656,11 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type-detect@4.0.8, type-detect@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
+  integrity sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==
+
 uri-js@^4.2.2:
   version "4.2.2"
   resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-4.2.2.tgz#94c540e1ff772956e2299507c010aea6c8838eb0"
@@ -1483,7 +1687,7 @@ verror@1.10.0:
     core-util-is "1.0.2"
     extsprintf "^1.2.0"
 
-which@^1.2.9:
+which@1, which@^1.2.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==