Remove bindings dependency (require the built addon directly because the build output location is well-known and constant)

Add note about a possible error and its solution to the README
Improve .editorconfig
Run tests in CI workflow

.editorconfig

@@ -9,13 +9,9 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[package.json]
+[{package.json, *.yaml, *.yml}]
 indent_style = space
 indent_size = 2
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
 
 [*.md]
 trim_trailing_whitespace = false

.github/workflows/ci.yml

@@ -21,3 +21,5 @@ jobs:
         if: matrix.os == 'ubuntu-latest'
       - name: Compile
         run: npm install --verbose
+      - name: Run tests
+        run: npm test

.idea/dictionaries/pokusew.xml

@@ -1,13 +1,17 @@
 <component name="ProjectDictionaryState">
   <dictionary name="pokusew">
     <words>
+      <w>addon</w>
       <w>addons</w>
+      <w>debian</w>
       <w>doctoc</w>
       <w>gitignore</w>
       <w>npmignore</w>
       <w>pcsc</w>
       <w>pcsclite</w>
       <w>picc</w>
+      <w>pokusew</w>
+      <w>scard</w>
     </words>
   </dictionary>
 </component>

.npmignore

@@ -33,5 +33,6 @@ nbproject/private/
 # node, npm
 node_modules/
 
-# built Node.js C++ addon
+# built Node.js C++ addon (must be build specifically on the target platform,
+# which is done automatically during installation via node-gyp)
 /build/

README.md

@@ -42,6 +42,8 @@ Bindings over pcsclite to access Smart Cards. It works in **Linux**, **macOS** a
   - [Disabling drivers to make pcsclite working on Linux](#disabling-drivers-to-make-pcsclite-working-on-linux)
   - [Which Node.js versions are supported?](#which-nodejs-versions-are-supported)
   - [Can I use this library in my React Native app?](#can-i-use-this-library-in-my-react-native-app)
+- [Frequent errors](#frequent-errors)
+  - [Error: Cannot find module '../build/Release/pcsclite.node'](#error-cannot-find-module-buildreleasepcsclitenode)
 - [License](#license)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
@@ -345,6 +347,34 @@ or in **Electron.js and NW.js** desktop apps. On the other hand, these requireme
 On top of that, React Native does not contain any Node.js runtime.
 
 
+## Frequent errors
+
+### Error: Cannot find module '../build/Release/pcsclite.node'
+
+@pokusew/pcsclite uses **Node Native Modules** (Node.js C++ Addon) to access PC/SC API (pcsclite).
+The Node.js native C++ addon is built during installation via [node-gyp](https://github.com/nodejs/node-gyp)
+(see package.json > scripts > [install](https://github.com/pokusew/node-pcsclite/blob/master/package.json#L37)).
+When you see the error `Cannot find module '../build/Release/pcsclite.node'`, something probably
+**went wrong during the installation**.
+
+Follow the steps below to resolve your problem:
+1. If **there are any errors** in the output of the `npm install` resp. `yarn install`,
+    * **ensure you meet all the requirements** described in the [Installation](#installation) section of this README.
+        Then try reinstalling @pokusew/pcsclite (npm uninstall / yarn remove and then npm install / yarn add).
+    * **If the problem persists**, [open a new issue](https://github.com/pokusew/node-pcsclite/issues/new)
+        and be sure to include the output of the `npm install` resp. `yarn install`
+        and the details about your platform, OS, Node.js version and npm/yarn version.
+2. If **there are no errors** during the installation,
+    * then try reinstalling @pokusew/pcsclite (npm uninstall / yarn remove and then npm install / yarn add).
+    * If it does not help, then examine the contents of the folder `node_modules/@pokusew/pcsclite` in your project
+        (in case you installed @pokusew/pcsclite as a dependency). There should be a `build` folder with
+        a `Release` folder inside. In the `Release` folder, there should be a `pcsclite.node` file.
+        It is possible that this file is somewhere else. Whether you find the file somewhere or not,
+        please [open a new issue](https://github.com/pokusew/node-pcsclite/issues/new)
+        and describe the problem and be sure to include the details
+        about your platform, OS, Node.js version and npm/yarn version.
+
+
 ## License
 
 [ISC](/LICENSE.md)

lib/pcsclite.js

@@ -1,7 +1,13 @@
 "use strict";
 
 const EventEmitter = require('events');
-const pcsclite = require('bindings')('pcsclite');
+
+// pcsclite.node is a Node.js native C++ addon that is compiled during installation
+// via node-gyp (see package.json > scripts > install)
+// the build output name and directory is constant so we can require it directly
+// see https://github.com/nodejs/node-gyp/issues/263, https://github.com/nodejs/node-gyp/issues/631
+const pcsclite = require('../build/Release/pcsclite.node');
+
 const { PCSCLite, CardReader } = pcsclite;
 
 

package.json

@@ -38,7 +38,6 @@
     "test": "mocha --exit"
   },
   "dependencies": {
-    "bindings": "^1.5.0",
     "nan": "^2.14.0"
   },
   "devDependencies": {

yarn.lock

@@ -86,13 +86,6 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.0.0.tgz#23c0df14f6a88077f5f986c0d167ec03c3d5537c"
   integrity sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow==
 
-bindings@^1.5.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
-  integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
-  dependencies:
-    file-uri-to-path "1.0.0"
-
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -238,11 +231,6 @@ esprima@^4.0.0:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
-file-uri-to-path@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
-  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
-
 fill-range@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"