package.json scripts: use NodeJS instead of unix commands

.eslintrc.json

@@ -86,6 +86,7 @@
   },
   "ignorePatterns": [
     "jest.config.js",
+    "scripts/**/*",
     "dist/**/*",
     "config/**/*"
   ],

package.json

@@ -14,12 +14,12 @@
   "types": "dist/index.d.ts",
   "scripts": {
     "test": "jest --verbose --runInBand",
-    "clean": "(test ! -d dist || rm -r dist)",
-    "prepareSources": "cp package.json src/",
+    "clean": "node scripts/clean.js",
+    "prepare-sources": "node scripts/prepare-sources.js",
     "compile": "yarn clean && tsc",
-    "build": "yarn prepareSources && yarn compile && cp -r yarn.lock README.md config/ views/ dist/ && mkdir dist/types && cp src/types/* dist/types/",
-    "dev": "yarn prepareSources && concurrently -k -n \"Typescript,Node,Webpack,Maildev\" -p \"[{name}]\" -c \"blue,green,red,yellow\" \"tsc --watch\" \"nodemon\" \"maildev\"",
-    "lint": "eslint . --ext .js,.jsx,.ts,.tsx",
+    "build": "yarn prepare-sources && yarn compile && node scripts/dist.js",
+    "dev": "yarn prepare-sources && concurrently -k -n \"Typescript,Node,Webpack,Maildev\" -p \"[{name}]\" -c \"blue,green,red,yellow\" \"tsc --watch\" \"nodemon\" \"maildev\"",
+    "lint": "eslint .",
     "release": "yarn build && yarn lint && yarn test && cd dist && yarn publish"
   },
   "devDependencies": {

scripts/clean.js

@@ -0,0 +1,10 @@
+const fs = require('fs');
+
+[
+    'dist',
+].forEach(file => {
+    if (fs.existsSync(file)) {
+        console.log('Cleaning', file, '...');
+        fs.rmSync(file, {recursive: true});
+    }
+});

scripts/dist.js

@@ -0,0 +1,34 @@
+const fs = require('fs');
+const path = require('path');
+
+function copyRecursively(file, destination) {
+    const target = path.join(destination, path.basename(file));
+    if (fs.statSync(file).isDirectory()) {
+        console.log('mkdir', target);
+
+        fs.mkdirSync(target, {recursive: true});
+        fs.readdirSync(file).forEach(f => {
+            copyRecursively(path.join(file, f), target);
+        });
+    } else {
+        console.log('> cp ', target);
+
+        fs.copyFileSync(file, target);
+    }
+}
+
+
+[
+    'yarn.lock',
+    'README.md',
+    'config/',
+    'views/',
+].forEach(file => {
+    copyRecursively(file, 'dist');
+});
+
+fs.mkdirSync('dist/types', {recursive: true});
+
+fs.readdirSync('src/types').forEach(file => {
+    copyRecursively(path.join('src/types', file), 'dist/types');
+});

scripts/prepare-sources.js

@@ -0,0 +1,4 @@
+const fs = require('fs');
+const path = require('path');
+
+fs.copyFileSync('package.json', path.join('src', 'package.json'));