feat(package): move to ES6 with rollup build

Also the utility function getUsersUrl(db) has been made available as
part of the plugin API as db.getUsersDatabaseUrl() as it is used in tests.

.eslintrc.json

@@ -0,0 +1,45 @@
+{
+
+  "extends": "eslint:recommended",
+
+  "parserOptions": {
+    "ecmaVersion": 6,
+    "sourceType": "module"
+  },
+
+  "env": {
+    "browser": true,
+    "node": true,
+    "mocha": true
+  },
+
+  "globals": {
+    "Map": true,
+    "Set": true,
+    "chrome": true,
+    "Promise": true,
+    "Uint8Array": true,
+    "ArrayBuffer": true,
+    "FileReaderSync": true,
+    "sqlitePlugin": true,
+    "emit": true,
+    "PouchDB": true,
+    "should": true,
+    "assert": true,
+    "testUtils": true,
+    "importScripts": true,
+    "testCases": true
+  },
+
+  "rules": {
+    "no-empty": 0,
+    "no-console": 0,
+    "semi": ["error", "always"],
+    "curly": ["error", "all"],
+    "space-unary-ops": ["error", {"words": true}],
+    "space-before-function-paren": ["error", {"anonymous": "always", "named": "never"}],
+    "max-len": ["error", 100, {"ignoreComments": true, "ignoreStrings": true, "ignoreRegExpLiterals": true}],
+    "keyword-spacing": ["error"],
+    "space-before-blocks": ["error"]
+  }
+}

.gitignore

@@ -5,4 +5,5 @@ coverage
 npm-debug.log
 test/test-bundle.js
 dist
+lib
 .idea

.travis.yml

@@ -11,7 +11,7 @@ sudo: false
 before_script:
   - "npm install add-cors-to-couchdb"
   - "./node_modules/.bin/add-cors-to-couchdb"
-  - "npm run jshint"
+  - "npm run lint"
 
 script: npm test
 

config/rollup.config.browser.cjs.js

@@ -0,0 +1,7 @@
+import config from './rollup.config';
+
+export default config({
+  format: 'cjs',
+  dest: 'lib/index.browser.js',
+  browser: true
+});

config/rollup.config.browser.es.js

@@ -0,0 +1,7 @@
+import config from './rollup.config';
+
+export default config({
+  format: 'es',
+  dest: 'lib/index.browser.es.js',
+  browser: true
+});

config/rollup.config.cjs.js

@@ -0,0 +1,7 @@
+import config from './rollup.config';
+
+export default config({
+  format: 'cjs',
+  dest: 'lib/index.js',
+  browser: false
+});

config/rollup.config.es.js

@@ -0,0 +1,7 @@
+import config from './rollup.config';
+
+export default config({
+  format: 'es',
+  dest: 'lib/index.es.js',
+  browser: false
+});

config/rollup.config.iife.js

@@ -0,0 +1,7 @@
+import config from './rollup.config';
+
+export default config({
+  format: 'iife',
+  dest: 'dist/pouchdb.authentication.js',
+  browser: true
+});

config/rollup.config.js

@@ -0,0 +1,15 @@
+import buble from 'rollup-plugin-buble';
+import replace from 'rollup-plugin-replace';
+
+export default config => {
+  return {
+    entry: 'src/index.js',
+    format: config.format,
+    moduleName: 'pouchdb_authentication',
+    dest: config.dest,
+    plugins: [
+      buble(),
+      replace({'process.browser': JSON.stringify(!!config.browser)})
+    ]
+  };
+};