hackernews script: running in separate thread now to make backtracing easier

examples/hackernews_frontpage.rb

@@ -1,21 +1,39 @@
 require "httpx"
 require "oga"
 
-frontpage = HTTPX.get("https://news.ycombinator.com").to_s
 
-html = Oga.parse_html(frontpage)
-
-links = html.css('.itemlist a.storylink').map{|link| link.get('href') }
-
-links = links.select {|l| l.start_with?("https") }
-
-puts links
-
-responses = HTTPX.get(*links)
-
-links.each_with_index do |l, i|
-  puts "#{responses[i].status}: #{l}"
+def print_status
+  # thread backtraces
+  Thread.list.each do |th|
+    # next if th == Thread.current
+    id = th.object_id
+    puts "THREAD ID: #{id}"
+    th.backtrace.each do |line|
+      puts "\t#{id}: " + line
+    end if th.backtrace
+    puts "#" * 20
+  end
 end
 
+Signal.trap("INFO") { print_status } unless ENV.key?("CI")
+
+Thread.start do
+	frontpage = HTTPX.get("https://news.ycombinator.com").to_s
+	
+	html = Oga.parse_html(frontpage)
+	
+	links = html.css('.itemlist a.storylink').map{|link| link.get('href') }
+	
+	links = links.select {|l| l.start_with?("https") }
+	
+	puts links
+	
+	responses = HTTPX.get(*links)
+	
+	links.each_with_index do |l, i|
+  	puts "#{responses[i].status}: #{l}"
+	end
+end.join
+