HN script updates (using official API, CLI args support)

.jshintrc

@@ -0,0 +1,5 @@
+{
+  "esnext": true,
+  "laxcomma": true,
+  "node": true
+}

README.md

@@ -17,17 +17,33 @@ Before installation you will need node/npm installed.
 
 
     sudo npm install -g hacker-news-cli
-    
+
 ##Usage
 
 The global installation will symlink an executable script and place it in your PATH. To use with hacker news simply type:
 
     hn
-
+
+or use `--help` to show available options:
+
+    hn --help
+
+    A command line tool to print out the latest posts on Hacker News to your terminal.
+
+    Usage
+    $ hn <option> [parameters]
+
+    Examples of usage
+    $ hn --limit 10
+
+    Options
+    --limit n  # Displays first n hottest posts.  Default:  29
+    --version  # Displays package version.
+
 or for designer news:
 
     dn
-    
+
 You will then be prompted to open a post. Type the number of the post to open a post or type 0 to quit and return to your terminal session.
 
 ##Version history

index.js

@@ -1,38 +1,71 @@
 #!/usr/bin/env node
 
 var FeedParser = require('feedparser')
-  , request = require('request')
+  , async = require('async')
   , posts = []
+  , hackerNews = require("node-hacker-news")()
   , colors = require('colors')
   , prompt = require('prompt')
   , exec = require('child_process').exec
-  , platform = require('os').platform()
-  , i = 1;
+  , meow = require('meow')
+  , platform = require('os').platform();
 
 const shellOpenCommand = {
   'win32': 'start ',
   'linux': 'xdg-open ',
   'darwin': 'open '
 }[platform];
 
-request('https://news.ycombinator.com/rss')
-  .pipe(new FeedParser())
-  .on('error', function(error) {
-    console.log("An error occured");
-  })
-  .on('readable', function () {
-    var stream = this, item;
-    if(i < 29){
-      while (item = stream.read()) {
-      posts.push(item);
-      console.log(i.toString().red + ". " + item.title);
-      i++;
-    }
-    }
-  })
-  .on('finish', function(){
-    promptForPost();
+const defaults = {
+  'limit': 29
+};
+
+const hnUrls = {
+  'item': 'https://news.ycombinator.com/item?id='
+};
+
+var cli = meow({
+  help: [
+    'Usage',
+    '  $ hn <option> [parameters]',
+    '',
+    'Examples of usage',
+    '  $ hn --limit 10',
+    '',
+    'Options',
+    '  --limit n  # Displays first n hottest posts.  Default: 29',
+    '  --version  # Displays package version.',
+  ]
+});
+
+hackerNews.getHottestItems(getLimit(), function(err, items) {
+  if (err) {
+    throw err;
+  }
+
+  posts = items.slice();
+  async.each(posts, printPostTitle, promptForPost);
+});
+
+function getLimit() {
+  return isNaN(cli.flags.limit)
+    || !cli.flags.limit
+    ? defaults.limit
+    : cli.flags.limit;
+}
+
+function printPostTitle(post, next) {
+  console.log((posts.indexOf(post) + 1).toString().red + ". " + post.title);
+  next();
+}
+
+function openPost(post) {
+  var url = post.url.length ? post.url : hnUrls.item + post.id;
+
+  exec(shellOpenCommand + url, function(error) {
+    if(error) throw error;
   });
+}
 
 function promptForPost() {
   prompt.start();
@@ -52,9 +85,7 @@ function promptForPost() {
       if(isNaN(i) || i > posts.length || i < 1) {
         console.log("Invalid post number");
       } else {
-        exec(shellOpenCommand + posts[i - 1].link, function(error){
-          if(error) throw error;
-        });
+        openPost(posts[i - 1]);
       }
       promptForPost();
     }

package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "preferGlobal": true,
   "bin": {
     "hn": "./index.js",
     "dn": "./designer.js"
@@ -20,9 +21,12 @@
     "url": "https://github.com/mtharrison/hackernews/issues"
   },
   "dependencies": {
-    "request": "~2.27.0",
-    "feedparser": "~0.16.2",
+    "async": "^1.3.0",
     "colors": "~0.6.2",
-    "prompt": "~0.2.11"
+    "feedparser": "~0.16.2",
+    "meow": "^3.3.0",
+    "node-hacker-news": "^0.1.1",
+    "prompt": "~0.2.11",
+    "request": "~2.27.0"
   }
 }