slack_mattermost_emoji/bin/slack-mattermost-emoji

#!/usr/bin/env ruby

require 'dotenv/load'
require 'slack_mattermost_emoji'

client = SlackMattermostEmoji::SlackClient.new(
  username: ENV['SLACK_USERNAME'],
  password: ENV['SLACK_PASSWORD'],
  domain: ENV['SLACK_DOMAIN'],
  download_path: ENV['DOWNLOAD_PATH']
)
client.authenticate
client.download_emoji

client = SlackMattermostEmoji::MattermostClient.new(
  username: ENV['MATTERMOST_USERNAME'],
  password: ENV['MATTERMOST_PASSWORD'],
  domain: ENV['MATTERMOST_DOMAIN'],
  emoji_path: ENV['DOWNLOAD_PATH']
)
client.authenticate
client.upload_emoji