add short hash to hame

package.json

@@ -1,24 +1,36 @@
 {
   "name": "lp-loader",
-  "version": "1.0.0-pre.1",
+  "version": "1.0.0-pre.2",
   "description": "Frictionless language packs for Webpack.",
-  "keywords": ["i18n", "l10n", "webpack", "loader", "dictionary", "languages"],
-  "scripts": {    
-    "wp3-build": "ts-node-dev webpack3/build",    
+  "prettier": {
+    "semi": false,
+    "singleQuote": true,
+    "arrowParens": "avoid"
+  },
+  "keywords": [
+    "i18n",
+    "l10n",
+    "webpack",
+    "loader",
+    "dictionary",
+    "languages"
+  ],
+  "scripts": {
+    "wp3-build": "ts-node-dev webpack3/build",
     "wp3-watch": "h --n lp-loader-wp3 -- ts-node-dev webpack3/watch",
-    "wp3-wds": "h --n lp-loader-wp3-wds -- ts-node-dev webpack3/wds",    
-    "wp4-build": "ts-node-dev webpack4/build",    
+    "wp3-wds": "h --n lp-loader-wp3-wds -- ts-node-dev webpack3/wds",
+    "wp4-build": "ts-node-dev --respawn webpack4/build",
     "wp4-watch": "h --n lp-loader-wp4 -- ts-node-dev webpack4/watch",
-    "wp4-wds": "h --n lp-loader-wp4-wds -- ts-node-dev webpack4/wds",
-    "wp5-build": "ts-node-dev webpack5/build",    
+    "wp4-wds": "ts-node-dev webpack4/wds",
+    "wp5-build": "ts-node-dev webpack5/build",
     "wp5-watch": "h --n lp-loader-wp5 -- ts-node-dev webpack4/watch",
     "wp5-wds": "h --n lp-loader-wp5-wds -- ts-node-dev webpack4/wds",
     "test": "echo \"Error: no test specified\" && exit 1",
     "prepublishOnly": "tsc"
   },
   "author": "whitecolor",
   "files": [
-    "lib/lp-loader.*"
+    "lib/*"
   ],
   "main": "./lib/lp-loader",
   "loader": "./lib/lp-loader",
@@ -29,12 +41,14 @@
     "@types/es6-shim": "0.0.31",
     "@types/express": "^4.0.32",
     "@types/node": "^8.0.25",
-    "@types/systemjs": "^0.19.30",    
+    "@types/systemjs": "^0.19.30",
+    "get-port": "^5.1.1",
     "minihost": "^0.4.1",
     "node-static": "^0.7.9",
-    "ts-node": "^3.3.0",
-    "ts-node-dev": "^1.0.0-pre.4",
-    "typescript": "^2.4.2",    
+    "open": "^7.0.4",
+    "ts-node": "^8.10.2",
+    "ts-node-dev": "^1.0.0-pre.49",
+    "typescript": "^3.9.5",
     "xstream": "^10.9.0"
   },
   "license": "MIT"

src/hash.ts

@@ -0,0 +1,12 @@
+import * as crypto from 'crypto'
+
+const fullHashes: { [S: string]: string } = {}
+const usedShortHashes: { [H: string]: string } = {}
+
+export const getShortHash = (str: string, len = 4): string => {
+  const hash =
+    fullHashes[str] || crypto.createHash('md5').update(str).digest('hex')
+  const short = hash.slice(0, len)
+  usedShortHashes[short] = usedShortHashes[short] || str
+  return usedShortHashes[short] === str ? short : getShortHash(str, len + 1)
+}