Add: util - diskdb , and test

package.json

@@ -36,6 +36,7 @@
   "dependencies": {
     "async": "^2.6.0",
     "debug": "^3.1.0",
+    "diskdb": "^0.1.17",
     "files-list": "^1.4.1",
     "meow": "^3.7.0",
     "minimatch": "^3.0.4",

src/util/diskCache.js

+var dbS = require('diskdb');
+const path = require('path');
+
+const localPath = () => path.join(__dirname, 'disks');
+
+function loadDisk(...filename) {
+  let db = dbS.connect(
+    localPath(),
+    [...filename]
+  );
+
+  let options = {
+    multi: false, // update multiple - default false
+    upsert: true // if object is not found, add it (update-insert) - default false
+  };
+
+  function setDisk(key, q, obj) {
+    return db[key].update(q, obj, options);
+  }
+
+  function getDisk(key, obj) {
+    return db[key].findOne(obj);
+  }
+
+  return {setDisk, getDisk, db, path: db._db.path};
+}
+
+module.exports = loadDisk;

src/util/disks/test-disk.json

+[{"author":"name","_id":"9a8390e75a4b458dbf7e522c28357e81"}]
\ No newline at end of file

test/disk-cache/disk.js

+const {test} = require('ava');
+const dbFunc = require('../../src/util/diskCache');
+
+const DBname = 'test-disk';
+let dbFace = dbFunc(DBname);
+const OBJ = {author: 'name'};
+
+test.serial('set obj', async t => {
+  let res = await dbFace.setDisk(DBname, OBJ, OBJ);
+  console.log(res);
+  t.true(Object.keys(res).some(x => res[x] > 0));
+});
+
+test.serial('get obj', async t => {
+  let res = await dbFace.getDisk(DBname);
+  t.deepEqual(res.author, OBJ.author);
+});
+test.serial('db path', t => {
+  t.true(dbFace.path.includes('disks'));
+});

yarn.lock

@@ -1500,6 +1500,15 @@ detect-libc@^1.0.2:
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
+diskdb@^0.1.17:
+  version "0.1.17"
+  resolved "https://registry.yarnpkg.com/diskdb/-/diskdb-0.1.17.tgz#8abd095196b33b406791f1494b6b13b4422240c4"
+  integrity sha1-ir0JUZazO0BnkfFJS2sTtEIiQMQ=
+  dependencies:
+    chalk "^0.4.0"
+    merge "^1.1.3"
+    node-uuid "^1.4.1"
+
 dom-serializer@0, dom-serializer@~0.1.0:
   version "0.1.0"
   resolved "http://registry.npm.taobao.org/dom-serializer/download/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
@@ -3154,6 +3163,11 @@ merge-source-map@^1.1.0:
   dependencies:
     source-map "^0.6.1"
 
+merge@^1.1.3:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
+  integrity sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==
+
 micromatch@^2.1.5:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
@@ -3343,6 +3357,11 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
+node-uuid@^1.4.1:
+  version "1.4.8"
+  resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
+  integrity sha1-sEDrCSOWivq/jTL7HxfxFn/auQc=
+
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"