Add cli spinners (#203)

Author: vladimyr

lib/tldr.js

@@ -3,6 +3,7 @@
 const sample = require('lodash/sample');
 const fs = require('fs');
 const ms = require('ms');
+const ora = require('ora');
 const cache = require('./cache');
 const search = require('./search');
 const platform = require('./platform');
@@ -86,10 +87,11 @@ exports.clearCache = () => {
 };
 
 exports.updateCache = () => {
-  console.log('Updating...');
+  const spinner = ora();
+  spinner.start('Updating');
   return cache.update()
     .then(() => {
-      console.log('Done');
+      spinner.succeed();
     })
     .catch((err) => {
       console.error(err);
@@ -98,10 +100,11 @@ exports.updateCache = () => {
 };
 
 exports.updateIndex = () => {
-  console.log('Creating index...');
+  const spinner = ora();
+  spinner.start('Creating index');
   search.createIndex()
     .then(() => {
-      console.log('Done');
+      spinner.succeed();
     })
     .catch((err) => {
       console.error(err);
@@ -130,6 +133,8 @@ function printPages(pages, singleColumn) {
 }
 
 function printBestPage(command, options={}) {
+  const spinner = ora();
+
   // Trying to get the page from cache first
   cache.getPage(command)
     .then((content) => {
@@ -140,15 +145,16 @@ function printBestPage(command, options={}) {
         return exit();
       }
       // If not found, try to update
-      console.log('Page not found. Updating cache ..');
+      spinner.start('Page not found. Updating cache');
       return cache.update();
     })
     .then(() => {
-      console.log('Creating index...');
+      spinner.succeed();
+      spinner.start('Creating index');
       return search.createIndex();
     })
     .then(() => {
-      console.log('Done');
+      spinner.succeed();
       // And then, try to check in cache again
       return cache.getPage(command);
     })

package-lock.json

@@ -55,6 +55,7 @@
     "marked": "^0.3.9",
     "ms": "^2.0.0",
     "natural": "^0.5.4",
+    "ora": "^2.0.0",
     "os-homedir": "^1.0.1",
     "request": "^2.75.0",
     "unzip2": "^0.2.5"