This script spawns you a file server which serves markdown files (of .md extension) by rendering them to html. Might come handy if you are writing up something in markdown and want to check the work you've done.
It needs the github-markdown gem (gem install github-markdown).
| #!/usr/bin/env ruby | |
| require "webrick" | |
| require "open-uri" | |
| require "optparse" | |
| require "github/markdown" | |
| module WEBrick | |
| module HTTPServlet | |
| class MarkdownHandler < AbstractServlet | |
| def initialize(server, local_path) | |
| super(server, local_path) | |
| @local_path = local_path | |
| end | |
| def do_GET(req, res) | |
| res.body =<<EOF | |
| <html> | |
| <head> | |
| <link href="/.css" media="screen" rel="stylesheet" type="text/css" /> | |
| </head> | |
| <body> | |
| #{GitHub::Markdown.to_html IO.read(@local_path), :gfm} | |
| </body> | |
| </html> | |
| EOF | |
| res['content-type'] = 'text/html; charset=utf-8' | |
| end | |
| end | |
| end | |
| end | |
| opts = { :Port => 1234, :DocumentRoot => '.' } | |
| exts = %w[md] | |
| css = nil | |
| OptionParser.new { |op| | |
| op.banner = "simple web service that renders markdown files to html\n#{op.banner}" | |
| op.on('-p', '--port <port>', Integer, "listen port, default: #{opts[:Port]}") { |v| opts[:Port] = v } | |
| op.on('-r', '--root <dir>', "document root, default: #{opts[:DocumentRoot]}") { |v| opts[:DocumentRoot] = v } | |
| op.on('-e', '--extensions x,y,z', Array, "extensions that are considered markdown, default: #{exts.join(",")}") { |v| exts = v } | |
| op.on('-c', '--css <css>') { |v| css = v } | |
| }.parse! | |
| exts.each { |s| | |
| WEBrick::HTTPServlet::FileHandler.add_handler s, | |
| WEBrick::HTTPServlet::MarkdownHandler | |
| } | |
| server = WEBrick::HTTPServer.new opts | |
| if css | |
| cssdata = IO.read css | |
| server.mount_proc('/.css') { |req, res| | |
| res.body = cssdata | |
| res['content-type'] = 'text/css' | |
| } | |
| end | |
| %w[INT TERM].each do |signal| | |
| trap(signal) {server.shutdown} | |
| end | |
| server.start |