Twitter Giveaway bash+js script

README.md

This is a script picking winners for a contest where:

• every winning entry has to mention one other twitter account in a reply
• double winners are allowed

You'll need a few things installed:

• jq
• twarc
• boxes

Run npm install before running the script.

You'll also need to chmod +x ./giveaway.sh.

twarc needs to be configured using twarc configure

Replace the conversation ID and your Twitter handle with your data.

giveaway.sh

#!/bin/bash

clear
echo "Zero to Sold / Gratitude Giveaway" | boxes
echo ""
echo "Loading replies for the giveaway tweet (this could take a while)."

# twarc replies 1410898364691066881 --recursive > replies.jsonl
LINECOUNT=$(wc -l < replies.jsonl | xargs)
echo "Found $LINECOUNT replies."

echo "Loading retweets for the giveaway tweet."
# twarc retweets 1410898364691066881 > retweets.jsonl
LINECOUNTRT=$(wc -l < retweets.jsonl | xargs)
echo "Found $LINECOUNTRT retweets."

echo ""

cat replies.jsonl retweets.jsonl > all.jsonl
jq --slurp . <all.jsonl >all.json

echo "Picking random winners!"
node ./pick.js > winners.txt
cat winners.txt

package.json

{
  "name": "giveaway",
  "version": "1.0.0",
  "description": "",
  "main": "pick.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "lodash": "^4.17.21"
  }
}

pick.js

let fs = require ("fs")
let _ = require("lodash")

function getOthers(tweet) {
    let text = tweet.full_text.replace(/@arvidkahl/g, '').replace("@"+tweet.user.screen_name, '')
    let m =  text.match(/@[\S]+/);
    if (m) {m = m[0].replace(/[\.'].*/,"")}    
    return m || ""
}


function isAlreadyWinner(all, it) {
    if (!it || !it.user) return false;
    return _.some(all, (i)=> {
        return i.user.screen_name == it.user.screen_name || i.full_text.indexOf(it.user.screen_name)>-1 
    })
}

let data = _.map(JSON.parse(fs.readFileSync("./all.json", {encoding: 'utf-8'})), (i) => _.extend(i, {type: i.is_quote_status==true?'retweet':'reply'}))
const max_winners = 50

let candidates = []
candidates = _.shuffle(data)
candidates = _.filter(candidates, (i)=>{return i.user.screen_name!='arvidkahl'}) // filter out my own account
candidates = _.filter(candidates, (i)=>{return (getOthers(i))}) // only those who mention other accounts 
candidates = _.uniqBy(candidates, (i) => (i.user.screen_name + getOthers(i)).split('').sort().join('')) // filter out replies to replies 

winners = []

while (winners.length < max_winners) {
    let candidate = candidates.shift();
    if (!isAlreadyWinner(winners, candidate)) winners.push(candidate)
}

console.log("=== Long ===\n\n")

_.forEach(winners, (v, i)=>{
    console.log(`Winner #${i+1}: @${v.user.screen_name} (and ${getOthers(v)}) [${v.type}] https://twitter.com/${v.user.screen_name}/status/${v.id_str}`)
})

console.log("\n\n=== Tweetable ===\n\n")

_.forEach(winners, (v, i)=>{
    console.log(`Winner #${i+1}: @${v.user.screen_name} and ${getOthers(v)}`)
})

console.log("\n\n=== Accounts ===\n\n")

let names = []
_.forEach(winners, (v, i)=>{
    names.push(v.user.screen_name)
    names.push(getOthers(v).replace("@",''))
})
_.forEach(_.uniq(names.sort()), (v) => console.log(v))

Great idea. I'll keep track of winners and discard duplicates.