Now linting library too

.eslintignore

@@ -1 +1,5 @@
 js/espruinotools.js
+lib/imageconverter.js
+lib/qrcode.min.js
+lib/heatshrink.js
+

js/appinfo.js

@@ -30,7 +30,7 @@ function toJS(txt) {
 if ("undefined"!=typeof module)
   Espruino = require("./espruinotools.js");
 
-let AppInfo = {
+const AppInfo = {
   /* Get files needed for app.
      options = {
         fileGetter : callback for getting URL,

js/comms.js

@@ -1,7 +1,7 @@
 Puck.debug=3;
 
 // FIXME: use UART lib so that we handle errors properly
-let Comms = {
+const Comms = {
   reset : (opt) => new Promise((resolve,reject) => {
     Puck.write(`\x03\x10reset(${opt=="wipe"?"1":""});\n`, (result) => {
       if (result===null) return reject("Connection failed");

js/ui.js

@@ -1,7 +1,7 @@
 // General UI tools (progress bar, toast, prompt)
 
 /// Handle progress bars
-let Progress = {
+const Progress = {
   domElement : null, // the DOM element
   sticky : false, // Progress.show({..., sticky:true}) don't remove until Progress.hide({sticky:true})
   interval : undefined, // the interval used if Progress.show({progress:"animate"})

lib/.eslintrc.json

@@ -0,0 +1,26 @@
+{
+    "parserOptions": {
+        "ecmaVersion": 6,
+        "sourceType": "script"
+    },
+    "rules": {
+        "indent": [
+            "warn",
+            2,
+            {
+                "SwitchCase": 1
+            }
+        ],
+        "no-undef": "warn",
+        "no-redeclare": "warn",
+        "no-var": "warn",
+        "no-unused-vars":"off" // we define stuff to use in other scripts
+    },
+    "env": {
+        "browser": true
+    },
+    "extends": "eslint:recommended",
+    "globals": {
+        "onInit" : "readonly"
+     }
+}

lib/interface.js

@@ -19,8 +19,8 @@ Util.eraseStorageFile(filename,callback)
 Util.showModal(title)
 Util.hideModal()
 */
-var __id = 0, __idlookup = [];
-var Puck = {
+let __id = 0, __idlookup = [];
+const Puck = {
   eval : function(data,callback) {
     __id++;
     __idlookup[__id] = callback;
@@ -32,7 +32,7 @@ var Puck = {
   }
 };
 
-var Util = {
+const Util = {
   readStorageFile : function(filename,callback) {
     __id++;
     __idlookup[__id] = callback;
@@ -71,25 +71,25 @@ var Util = {
     Util.domModal.classList.remove("active");
   },
   saveCSV : function(filename, csvData) {
-    var a = document.createElement("a"),
-        file = new Blob([csvData], {type: "Comma-separated value file"});
-    var url = URL.createObjectURL(file);
+    let a = document.createElement("a"),
+      file = new Blob([csvData], {type: "Comma-separated value file"});
+    let url = URL.createObjectURL(file);
     a.href = url;
     a.download = filename+".csv";
     document.body.appendChild(a);
     a.click();
     setTimeout(function() {
-        document.body.removeChild(a);
-        window.URL.revokeObjectURL(url);
+      document.body.removeChild(a);
+      window.URL.revokeObjectURL(url);
     }, 0);
   }
 };
 window.addEventListener("message", function(event) {
-  var msg = event.data;
+  let msg = event.data;
   if (msg.type=="init") {
     onInit();
   } else if (msg.type=="evalrsp" || msg.type=="writersp"|| msg.type=="readstoragefilersp") {
-    var cb = __idlookup[msg.id];
+    let cb = __idlookup[msg.id];
     delete __idlookup[msg.id];
     cb(msg.data);
   }

package.json

@@ -9,7 +9,7 @@
   },
   "scripts": {
     "lint-apps": "eslint ./apps --ext .js",
-    "test": "node bin/sanitycheck.js && eslint ./apps --ext .js && eslint ./js",
+    "test": "node bin/sanitycheck.js && eslint ./apps --ext .js && eslint ./lib ./js",
     "start": "npx http-server"
   },
   "dependencies": {