Allow test/lint scripts to run without requiring make (#878)

.eslintignore

@@ -0,0 +1,3 @@
+**/node_modules/*
+build/*
+dist/*

.eslintrc

@@ -70,18 +70,6 @@
         "valid-jsdoc": 0,
         "require-jsdoc": 0
     },
-    "ecmaFeatures": {
-        "arrowFunctions": true,
-        "blockBindings": true,
-        "classes": true,
-        "destructuring": true,
-        "experimentalObjectRestSpread": true,
-        "forOf": true,
-        "jsx": true,
-        "restParams": true,
-        "spread": true,
-        "templateStrings": true
-    },
     "env": {
         "es6": true,
         "node": true,

CONTRIBUTING.md

@@ -57,8 +57,8 @@ single file.  The goal is to have all functions use this new system.
 
 ## Testing
 
-Local testing can be done by running the node server in `server.js`. Run `make
+Local testing can be done by running the node server in `server.js`. Run
-setup` to install dependencies, and then `make serve` to start the server.
+`npm install` to install dependencies, and then `npm start` to start the server.
 
 This will host an interactive editor at
 [http://localhost:7936/](http://localhost:7936/) to play around with and test
@@ -68,7 +68,7 @@ changes.
 
 The JavaScript parser and some of the HTML and MathML tree
 builders are tested with Jest. These tests can be run using node with
-`make test`.  If you need to debug the tests see
+`npm run jest`.  If you need to debug the tests see
 [https://facebook.github.io/jest/docs/troubleshooting.html](https://facebook.github.io/jest/docs/troubleshooting.html)
 
 The interactive editor can also be used for debugging tests in the browser by

Makefile

@@ -1,5 +1,5 @@
-.PHONY: build dist lint setup copy serve clean metrics test coverage zip contrib
+.PHONY: build dist lint setup copy serve clean metrics test coverage zip contrib flow
-build: lint build/katex.min.js build/katex.min.css contrib zip compress
+build: test build/katex.min.js build/katex.min.css contrib zip compress
 
 ifeq ($(KATEX_DIST),skip)
 
@@ -14,6 +14,7 @@ dist: build
 endif
 
 NODE := node # pass NODE=nodejs on Debian without package nodejs-legacy
+NPM := npm
 NODECHK := $(shell $(NODE) ./check-node-version.js)
 ifneq ($(NODECHK),OK)
 $(error "Node not found or wrong version")
@@ -36,8 +37,8 @@ $(NIS) setup: package.json
 	KATEX_DIST=skip npm install # dependencies only, don't build
 	@touch $(NIS)
 
-lint: $(NIS) katex.js server.js cli.js $(wildcard src/*.js) $(wildcard test/*.js) $(wildcard contrib/*/*.js) $(wildcard dockers/*/*.js)
+lint: $(NIS)
-	./node_modules/.bin/eslint $(filter-out %.stamp,$^)
+	$(NPM) run lint
 
 build/katex.js: katex.js $(wildcard src/*.js) $(NIS)
 	$(BROWSERIFY) -t [ babelify ] $< --standalone katex > $@
@@ -101,16 +102,16 @@ compress: build/katex.min.js build/katex.min.css
 	printf "Total:                 %6d\n" "$${TOTAL}"
 
 serve: $(NIS)
-	$(NODE) server.js
+	$(NPM) start
 
 flow: $(NIS)
-	node_modules/.bin/flow
+	$(NPM) run flow
 
 test: $(NIS)
-	node_modules/.bin/jest
+	$(NPM) test
 
 coverage: $(NIS)
-	node_modules/.bin/jest --coverage
+	$(NPM) run coverage
 
 PERL=perl
 PYTHON=$(shell python2 --version >/dev/null 2>&1 && echo python2 || echo python)

package.json

@@ -25,6 +25,7 @@
     "babel-register": "^6.24.0",
     "babelify": "^7.3.0",
     "browserify": "^13.3.0",
+    "check-dependencies": "^1.1.0",
     "clean-css": "^3.4.23",
     "eslint": "^4.6.1",
     "eslint-plugin-flowtype": "^2.35.1",
@@ -47,9 +48,13 @@
   },
   "bin": "cli.js",
   "scripts": {
-    "lint": "make lint",
+    "lint": "eslint katex.js server.js cli.js src test contrib dockers",
-    "test": "make lint flow test",
+    "flow": "flow",
-    "prepublish": "make NIS= dist"
+    "jest": "jest",
+    "coverage": "jest --coverage",
+    "test": "check-dependencies && npm run lint && npm run flow && npm run jest",
+    "start": "check-dependencies && node server.js",
+    "prepublishOnly": "make NIS= dist"
   },
   "pre-commit": [
     "lint"

src/functions/operators.js

@@ -55,7 +55,7 @@ defineFunction({
         // The steps taken here are similar to the html version.
         let output = [];
         if (group.value.value.length > 0) {
-            let temp = mml.buildExpression(group.value.value, options);
+            const temp = mml.buildExpression(group.value.value, options);
 
             let word = "";
             for (let i = 0; i < temp.length; i++) {

test/screenshotter/ss_data.js

@@ -7,19 +7,20 @@
  * The export of this module is simply a dictionary of test cases.
  */
 
-var fs = require("fs");
+const fs = require("fs");
-var jsyaml = require("js-yaml");
+const jsyaml = require("js-yaml");
-var querystring = require("querystring");
+const querystring = require("querystring");
 
-var queryKeys = ["tex", "pre", "post", "display", "noThrow", "errorColor"];
+const queryKeys = ["tex", "pre", "post", "display", "noThrow", "errorColor"];
-var dict = fs.readFileSync(require.resolve("./ss_data.yaml"));
+let dict = fs.readFileSync(require.resolve("./ss_data.yaml"));
 dict = jsyaml.safeLoad(dict);
-for (var key in dict) {
+for (const key in dict) {
-    var itm = dict[key];
+    if (dict.hasOwnProperty(key)) {
+        let itm = dict[key];
         if (typeof itm === "string") {
             itm = dict[key] = { tex: itm };
         }
-    var query = {};
+        const query = {};
         queryKeys.forEach(function(key) {
             if (itm.hasOwnProperty(key)) {
                 query[key] = itm[key];
@@ -30,4 +31,5 @@ for (var key in dict) {
             itm.query += "&" + querystring.stringify(itm.macros);
         }
     }
+}
 module.exports = dict;