Update 0.6.0: Docker support

.dockerignore

@@ -0,0 +1,6 @@
+# Ignore everything
+**/*
+
+# Allow files and directories
+!*.js
+!*.json

Dockerfile

@@ -0,0 +1,18 @@
+FROM keymetrics/pm2:latest-stretch
+# Create app directory
+WORKDIR /usr/src/markbot
+
+# Install app dependencies
+COPY package*.json ./
+
+# If you are building your code for production
+ENV NPM_CONFIG_LOGLEVEL warn
+RUN npm ci --only=production
+
+# Bundle app source
+COPY . .
+RUN mkdir config
+
+RUN ls -al
+
+CMD [ "pm2-runtime", "start", "ecosystem.config.js" ]

README.md

@@ -77,33 +77,61 @@ sudo apt-get install build-essential -y
 npm start
 ```
 
+## Docker
+### Setup with source
+1. Install Docker for your OS.
+1. Download this repository using git in a command prompt
+    ```sh
+    git clone https://github.com/charlocharlie/markov-discord.git
+    ```
+    or by just downloading and extracting the [project zip](https://github.com/charlocharlie/markov-discord/archive/master.zip) from GitHub.
+1. Open a command prompt in the markov-discord folder and run this one-liner:
+    ```sh
+    docker run --rm -e TOKEN=YOUR.BOT.TOKEN -v config:/usr/src/markbot/config -it $(docker build -q .)
+    # Be patient as the build output is suppressed
+    ```
+
+### Setup with Docker Hub image
+1. Install Docker for your OS.
+1. Open a command prompts and run this one-liner:
+    ```sh
+    docker build https://github.com/charlocharlie/markov-discord.git 
+    ```
+
 
 
 # Changelog
+### 0.6.0
+* Added Docker deploy functionality.
+* Moved config and database to `./config` directory. Existing configs will be migrated.
+* Config-less support via bot token located in an environment variable.
+* Update dependencies.
+* Change corpus regen time to 4 AM.
+
 ### 0.5.0
-Fixed bug where `!mark help` didn't work.
-Only admins can train.
-The bot responds when mentioned.
-The bot cannot mention @everyone.
-Added version number to help.
-Added `!mark tts` for a quieter TTS response.
-Readme overhaul.
-Simpler config loading.
+* Fixed bug where `!mark help` didn't work.
+* Only admins can train.
+* The bot responds when mentioned.
+* The bot cannot mention @everyone.
+* Added version number to help.
+* Added `!mark tts` for a quieter TTS response.
+* Readme overhaul.
+* Simpler config loading.
 
 ### 0.4.0
-Huge refactor. 
-Added `!mark debug` which sends debug info alongside the message.
-Converted the fetchMessages function to async/await (updating the requirement to Node.js 8).
-Updated module versions.
-Added faster unique-array-by-property function
-Added linting and linted the project. 
+* Huge refactor. 
+* Added `!mark debug` which sends debug info alongside the message.
+* Converted the fetchMessages function to async/await (updating the requirement to Node.js 8).
+* Updated module versions.
+* Added faster unique-array-by-property function
+* Added linting and linted the project. 
 
 ### 0.3.0
-Added TTS support and random message attachments.
-Deleted messages no longer persist in the database longer than 24 hours.
+* Added TTS support and random message attachments.
+* Deleted messages no longer persist in the database longer than 24 hours.
 
 ### 0.2.0
-Updated training algorithm and data structure.
+* Updated training algorithm and data structure.
 
 # Thanks
 Thanks to [BotMaker-for-Discord](https://github.com/CorySanin/BotMaker-for-Discord) which I used as a reference when during development. 

config/.gitignore

@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore

ecosystem.config.js

@@ -0,0 +1,12 @@
+module.exports = {
+  apps: [{
+    name: 'markbot',
+    script: './index.js',
+    env: {
+      NODE_ENV: 'development',
+    },
+    env_production: {
+      NODE_ENV: 'production',
+    },
+  }],
+};

index.js

@@ -3,7 +3,6 @@ const fs = require('fs');
 const Markov = require('markov-strings');
 const schedule = require('node-schedule');
 const { version } = require('./package.json');
-const cfg = require('./config');
 
 const client = new Discord.Client();
 // const ZEROWIDTH_SPACE = String.fromCharCode(parseInt('200B', 16));
@@ -56,9 +55,17 @@ function uniqueBy(arr, propertyName) {
 function regenMarkov() {
   console.log('Regenerating Markov corpus...');
   try {
-    fileObj = JSON.parse(fs.readFileSync('markovDB.json', 'utf8'));
+    fileObj = JSON.parse(fs.readFileSync('config/markovDB.json', 'utf8'));
   } catch (err) {
-    console.log(err);
+    console.log('No markovDB.json, starting with initial values');
+    fileObj = {
+      messages: [
+        {
+          id: '0',
+          string: '',
+        },
+      ],
+    };
   }
   // console.log("MessageCache", messageCache)
   markovDB = fileObj.messages;
@@ -69,15 +76,12 @@ function regenMarkov() {
     markovDB.splice(removeIndex, 1);
   });
   deletionCache = [];
-  if (markovDB.length === 0) {
-    markovDB.push({ string: 'hello', id: null });
-  }
   markov = new Markov(markovDB, markovOpts);
   markov.buildCorpusSync();
   fileObj.messages = markovDB;
   // console.log("WRITING THE FOLLOWING DATA:")
   // console.log(fileObj)
-  fs.writeFileSync('markovDB.json', JSON.stringify(fileObj), 'utf-8');
+  fs.writeFileSync('config/markovDB.json', JSON.stringify(fileObj), 'utf-8');
   fileObj = null;
   messageCache = [];
   console.log('Done regenerating Markov corpus.');
@@ -87,10 +91,30 @@ function regenMarkov() {
  * Loads the config settings from disk
  */
 function loadConfig() {
-  PREFIX = cfg.prefix;
-  GAME = cfg.game;
-  // regenMarkov()
-  client.login(cfg.token);
+  // Move config if in legacy location
+  if (fs.existsSync('./config.json')) {
+    console.log('Copying config.json to new location in ./config');
+    fs.renameSync('./config.json', './config/config.json');
+  }
+
+  if (fs.existsSync('./markovDB.json')) {
+    console.log('Copying markovDB.json to new location in ./config');
+    fs.renameSync('./markovDB.json', './config/markovDB.json');
+  }
+
+
+  try {
+  // eslint-disable-next-line global-require
+    const cfg = require('./config/config.json');
+    PREFIX = cfg.prefix;
+    GAME = cfg.game;
+    client.login(cfg.token);
+  } catch (e) {
+    console.warn('Failed to use config.json. using default configuration with token environment variable');
+    PREFIX = '!mark';
+    GAME = '"!mark help" for help';
+    client.login(process.env.TOKEN);
+  }
 }
 
 /**
@@ -235,7 +259,7 @@ client.on('error', (err) => {
   const errText = `ERROR: ${err.name} - ${err.message}`;
   console.log(errText);
   errors.push(errText);
-  fs.writeFile('error.json', JSON.stringify(errors), (fsErr) => {
+  fs.writeFile('./config/error.json', JSON.stringify(errors), (fsErr) => {
     if (fsErr) {
       console.log(`error writing to error file: ${fsErr.message}`);
     }
@@ -270,7 +294,7 @@ client.on('message', (message) => {
         fileObj = {
           messages: [],
         };
-        fs.writeFileSync('markovDB.json', JSON.stringify(fileObj), 'utf-8');
+        fs.writeFileSync('config/markovDB.json', JSON.stringify(fileObj), 'utf-8');
         fetchMessages(message);
       }
     }
@@ -284,7 +308,6 @@ client.on('message', (message) => {
       generateResponse(message, true);
     }
     if (command === 'regen') {
-      console.log('Regenerating...');
       regenMarkov();
     }
     if (command === null) {
@@ -324,4 +347,4 @@ client.on('messageDelete', (message) => {
 });
 
 loadConfig();
-schedule.scheduleJob('0 0 * * *', regenMarkov());
+schedule.scheduleJob('0 4 * * *', regenMarkov());

package.json

@@ -1,35 +1,41 @@
 {
   "name": "markbot",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "A conversational Markov chain bot for Discord",
   "main": "index.js",
   "scripts": {
-    "start": "node index.js"
+    "start": "node index.js",
+    "docker-up": "docker run --rm -e TOKEN=Mjc4MzU0MTU0NTYzNTY3NjM2.XLtWYQ.1pF0BMNDM0PO4kwPSEPelabRTEw -it $(docker build -q .)"
   },
   "repository": "https://github.com/charlocharlie/markov-discord.git",
   "keywords": [
     "discord",
     "markov",
     "chain",
-    "bot"
+    "markov-chain",
+    "bot",
+    "discord-js",
+    "discord-bot",
+    "markov-chain-bot",
+    "docker"
   ],
   "author": "Charlie Laabs <charlielaabs@gmail.com>",
   "license": "MIT",
   "dependencies": {
-    "bufferutil": "^4.0.0",
+    "bufferutil": "^4.0.1",
     "discord.js": "^11.4.2",
     "erlpack": "github:discordapp/erlpack",
-    "markov-strings": "^1.5.0",
-    "node-schedule": "^1.3.0",
+    "markov-strings": "^1.5.2",
+    "node-schedule": "^1.3.2",
     "zlib-sync": "^0.1.4"
   },
   "engines": {
     "node": ">=8.0.0"
   },
   "devDependencies": {
-    "eslint": "^5.4.0",
+    "eslint": "^5.16.0",
     "eslint-config-airbnb-base": "^13.1.0",
-    "eslint-plugin-import": "^2.14.0"
+    "eslint-plugin-import": "^2.17.2"
   },
   "eslintConfig": {
     "parserOptions": {