update publisher and check integrations

Author: ggerman

demo/rsn_events_bot/publish.rb

@@ -13,4 +13,6 @@
 
 publishers.each do |publisher|
   puts publisher.post(message, image) ? "x" : "."
-end
+end
+
+puts "Publishing finished"

demo/rsn_events_bot/publishers/bluesky.rb

@@ -5,7 +5,7 @@
 BSKY_USER = ENV["BSKY_USER"]
 BSKY_PASS = ENV["BSKY_PASS"]
 
-return false unless BSKY_USER && BSKY_PASS
+exit unless BSKY_USER && BSKY_PASS
 
 TEXT = <<~TEXT
 📅 Upcoming Ruby events around the world

demo/rsn_events_bot/publishers/discord.rb

@@ -6,7 +6,7 @@ class Discord
     def post(text, image_path)
       webhook = ENV["DISCORD_WEBHOOK"]
 
-      return false unless webhook
+      exit unless webhook
 
       uri = URI(webhook)
       req = Net::HTTP::Post.new(uri)

demo/rsn_events_bot/publishers/mastodon.rb

@@ -7,7 +7,7 @@ def post(text, image_path)
       instance = ENV["MASTODON_INSTANCE"]
       token    = ENV["MASTODON_TOKEN"]
 
-      return unless instance && token
+      exit unless instance && token
 
       abort "Image not found" unless File.exist?(image_path)