chore: switch to main & update packages & drop node 4 - 8 support

.eslintignore

@@ -0,0 +1,7 @@
+node_modules/
+.git
+examples/
+tmp/
+dist/
+public/
+**/vendor*/

.eslintrc

@@ -1,3 +1,3 @@
 {
-  "extends": "groupon/node4"
+  "extends": "groupon"
 }

.eslintrc.json

@@ -0,0 +1,17 @@
+{
+  "extends": "groupon",
+  "overrides": [
+    {
+      "files": "*.test.js",
+      "env": {
+        "mocha": true
+      }
+    },
+    {
+      "files": "plurals.js",
+      "rules": {
+        "no-unused-vars": "off"
+      }
+    }
+  ]
+}

.gitignore

@@ -1,5 +1,5 @@
-/yarn.lock
-/package-lock.json
 node_modules/
 npm-debug.log
 /tmp
+coverage
+/.nyc_output

.travis.yml

@@ -1,12 +1,11 @@
 language: node_js
 node_js:
-  - 4.6.1
-  - 6.11.5
-  - 8.9.0
+  - 12
+  - 14
 deploy:
   - provider: script
     script: ./node_modules/.bin/nlm release
     skip_cleanup: true
     'on':
       branch: master
-      node: 8.9.0
+      node: 14

CONTRIBUTING.md

@@ -46,7 +46,7 @@ only to discover that it conflicts with plans the maintainers might have.
 The general steps for creating a pull request are:
 
 1. Create a branch for your change.
-   Always start your branch from the latest `master`.
+   Always start your branch from the latest `main`.
    We often prefix the branch name with our initials, e.g. `jk-a-change`.
 1. Run `npm install` to install the dependencies.
 1. If you're fixing a bug, be sure to write a test *first*.

README.md

@@ -1,10 +1,11 @@
-# ndu - Visualize your Node app's disk space usage
+# `ndu` 
+> Visualize your Node app's disk space usage
 
-**Requires node 4+ and `du`. Windows not yet supported.**
+**Requires node 10.13+ and `du`. Windows not yet supported.**
 
 `ndu` is a tool for analyzing the size of dependencies in a node.js application.
 It's similar to [`disc`](https://npmjs.com/disc), but for server-side
-dependencies instead of client-side depedencies.
+dependencies instead of client-side dependencies.
 
 When building node.js apps, you can choose from hundreds of thousands of
 libraries available on [npm](https://www.npmjs.com/). But sometimes these

lib/browser.js

@@ -108,7 +108,7 @@ defaultRoot.size = _.sumBy(defaultRoot.children, 'size');
 
 function addParentRefsAndName(node) {
   node.name = node.path.split('/').pop();
-  node.children.forEach(function addToChild(child) {
+  node.children.forEach(child => {
     child.parent = node;
     addParentRefsAndName(child);
   });
@@ -121,7 +121,7 @@ function sliceColor(weight, position, depth) {
 
 function formatBytes(byteCount) {
   var pretty = bytes(byteCount * 1024);
-  var pct = Math.round(byteCount / defaultRoot.size * 100);
+  var pct = Math.round((byteCount / defaultRoot.size) * 100);
   return `${pretty} / ${pct}%`;
 }
 
@@ -134,14 +134,14 @@ function renderWithRoot(rootNode) {
     return Math.max.apply(
       null,
       [node.level].concat(
-        node.children.map(function findInChild(child) {
+        node.children.map(child => {
           return findMaxLevel(level + 1, child);
         })
       )
     );
   })(0, rootNode);
 
-  var angleScale = 2 * Math.PI / rootNode.size;
+  var angleScale = (2 * Math.PI) / rootNode.size;
   var sliceSize = HEIGHT / 2 / (maxLevel + 1);
   var slicePadding = 2;
 
@@ -179,7 +179,7 @@ function renderWithRoot(rootNode) {
       .attr('stroke', '#fff')
       .on('mouseover', showNodeInfo.bind(null, node))
       .on('mouseout', resetNodeInfo)
-      .on('click', function onNodeClick() {
+      .on('click', () => {
         if (node.children.length < 1) return;
 
         if (node !== rootNode) {
@@ -190,7 +190,7 @@ function renderWithRoot(rootNode) {
       });
 
     var childOffset = offset + node.self;
-    node.children.forEach(function renderChild(child) {
+    node.children.forEach(child => {
       renderNode(child, childOffset);
       childOffset += child.size;
     });
@@ -208,15 +208,14 @@ showNodeInfo = function _showNodeInfo(node) {
   segments.unshift('.');
   var leaf = segments.pop();
   var segmentNode = defaultRoot;
-  segments.forEach(function handleSegment(segment) {
+  segments.forEach(segment => {
     if (segment !== '.') {
       segmentNode = _.find(segmentNode.children, { name: segment });
     }
-    h4
-      .append('a')
+    h4.append('a')
       .attr('href', '#')
       .text(segment)
-      .on('click', _.partial(renderWithRoot, segmentNode));
+      .on('click', renderWithRoot.bind(null, segmentNode));
     h4.append('span').text('/');
   });
 

lib/ndu.js

@@ -19,10 +19,8 @@ const childProcess = require('child_process');
 
 function exec(cmd, options) {
   return new Promise((resolve, reject) => {
-    childProcess.exec(
-      cmd,
-      options,
-      (error, stdout) => (error ? reject(error) : resolve(stdout))
+    childProcess.exec(cmd, options, (error, stdout) =>
+      error ? reject(error) : resolve(stdout)
     );
   });
 }
@@ -60,10 +58,7 @@ function processOutput(stdout) {
 
   function calcParentStats(entry) {
     // map to parent
-    const parentPath = entry.path
-      .split('/')
-      .slice(0, -1)
-      .join('/');
+    const parentPath = entry.path.split('/').slice(0, -1).join('/');
     const parent = byPath[parentPath];
     if (parent) {
       parent.self -= entry.size;