- Breaking change: Switch to returning Promise in place of callback f…

…or `process`

- Update: psm argument for tesseract 4+
- Fix (npm): `engine` -> `engines`
- Fix: Allow image files to contain spaces (desmondmorris#59 )
- Enhancement: Add oem flag (https://github.com/desmondmorris/node-tesseract/pull/62/files )
- Enhancement: Add `tessdataDir` option (`--tessdata-dir`)
- Enhancement: Add HOCR, TSV support (https://github.com/desmondmorris/node-tesseract/pull/60/files )
- Enhancement: Add debug option and `.idea` to ignore (desmondmorris#43 )
- Linting (ESLint): Apply ash-nazg
- Refactoring: Use asynchronous `unlink`; remove custom `merge` in favor of spread operator
- Testing: Switch to chai over should
- Testing: Add coverage
- Maintenance: Add `.editorconfig`
- npm: Add recommended properties; update deps and devDeps; add ignore file and `package-lock.json`

.editorconfig

@@ -0,0 +1,16 @@
+; EditorConfig file: https://EditorConfig.org
+; Install the "EditorConfig" plugin into your editor to use
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+
+; [app/public/css/**.styl]
+; indent_style = tab
+; indent_size = 2

.eslintignore

@@ -0,0 +1,2 @@
+node_modules
+coverage

.eslintrc.js

@@ -0,0 +1,39 @@
+module.exports = {
+  "env": {
+    "commonjs": true,
+    "es6": true,
+    "node": true
+  },
+  settings: {
+    polyfills: [
+      'Promise'
+    ]
+  },
+  overrides: [
+    {
+      files: ['test/**'],
+      env: {
+        mocha: true
+      }
+    },
+    {
+      files: ['*.md'],
+      rules: {
+        strict: 0,
+        'no-console': 0,
+        'node/no-missing-require': ['error', {allowModules: ['node-tesseract']}]
+      }
+    }
+  ],
+  "extends": ["ash-nazg/sauron", "plugin:node/recommended-script"],
+  "globals": {
+    "Atomics": "readonly",
+    "SharedArrayBuffer": "readonly"
+  },
+  "parserOptions": {
+    "ecmaVersion": 2018
+  },
+  "rules": {
+    "import/no-commonjs": 0
+  }
+};

.gitignore

@@ -1 +1,2 @@
 node_modules
+.idea

.npmignore

@@ -0,0 +1 @@
+test

README.md

@@ -11,48 +11,61 @@ A simple wrapper for the Tesseract OCR package for node.js
 ## Installation
 There is a hard dependency on the [Tesseract project](https://github.com/tesseract-ocr/tesseract).  You can find installation instructions for various platforms on the project site. For Homebrew users, the installation is quick and easy.
 
-    brew install tesseract --with-all-languages
+```sh
+brew install tesseract --with-all-languages
+```
 
 The above will install all of the language packages available, if you don't need them all you can remove the `--all-languages` flag and install them manually, by downloading them to your local machine and then exposing the `TESSDATA_PREFIX` variable into your path:
 
-    export TESSDATA_PREFIX=~/Downloads/
+```sh
+export TESSDATA_PREFIX=~/Downloads/
+```
 
 You can then go about installing the node-module to expose the JavaScript API:
 
-    npm install node-tesseract
+```sh
+npm install node-tesseract
+```
 
 ## Usage
 
-```JavaScript
-var tesseract = require('node-tesseract');
+```js
+const {join} = require('path');
+const tesseract = require('node-tesseract');
 
+(async () => {
 // Recognize text of any language in any format
-tesseract.process(__dirname + '/path/to/image.jpg',function(err, text) {
-	if(err) {
-		console.error(err);
-	} else {
-		console.log(text);
-	}
-});
-
-// Recognize German text in a single uniform block of text and set the binary path
-
-var options = {
-	l: 'deu',
-	psm: 6,
-	binary: '/usr/local/bin/tesseract'
+let text;
+try {
+  text = await tesseract.process(join(__dirname, '/path/to/image.jpg'));
+} catch (err) {
+  console.error(err);
+  return;
+}
+console.log(text);
+
+// Recognize German text in a single uniform block of text and
+//  set the binary path
+const options = {
+  l: 'deu',
+  psm: 6,
+  binary: '/usr/local/bin/tesseract'
 };
 
-tesseract.process(__dirname + '/path/to/image.jpg', options, function(err, text) {
-	if(err) {
-		console.error(err);
-	} else {
-		console.log(text);
-	}
-});
+try {
+  text = await tesseract.process(
+    join(__dirname, '/path/to/image.jpg'), options
+  );
+} catch (err) {
+  console.error(err);
+  return;
+}
+console.log(text);
+})();
 ```
 
 ## Changelog
+
 * **0.2.7**: Adds output file extension detection
 * **0.2.6**: Catches exception when deleting tmp files that do not exist
 * **0.2.5**: Preserves whitespace and replaces tmp module