Small ruby script to create a new jekyll post, open the editor, start 'jekyll serve' and open the localhost site in a browser.

newpost.rb

#!/usr/bin/env ruby
 
unless ARGV[0]
	puts 'Usage: newpost "the post title"'
	exit(-1)
end
 
jekyll_site_prefix = "."
editor = "open -a Byword"
date_now = Time.now
date_prefix = date_now.strftime("%Y-%m-%d")
date_header = date_now.strftime("%Y-%m-%d %H:%M:%S")

post_title = ARGV.join(" ")
post_filename = date_prefix + "-" + post_title.strip.downcase.gsub(/ /, '-')
post_filepath = "#{jekyll_site_prefix}/_posts/#{post_filename}.md"
 
header = <<-END
---
layout: post
title: "#{post_title}"
date: #{date_header}
---
 
END
 
File.open(post_filepath, 'w') do |f|
	f << header
end
 
system("touch #{post_filepath}")
system(editor + " #{post_filepath}")
system("jekyll serve -s #{jekyll_site_prefix}")
system("open http://localhost:4000")