Dahie/gem-what.rb

## gem-what.rb
#
# This script reads your Gemfile and fetches the dependent gem's descriptions from Rubygems.
# This helps me to quickly 'learn' a project, but looking up gems more easy.
#
# Usage:
# - Download & place in project folder
# - `gem install wombat`
# - `ruby gemwhat.rb Gemfile`


require 'wombat'

body = File.read(ARGV[0])

gems_names = body.scan(/^\s*gem ["']([\d\w_-]*)["']/).flatten

fetched_gem_data = gems_names.map do |name|
  sleep 0.5 # I want to be polite and not hit RubyGems too hard
  Wombat.crawl do
    base_url "https://rubygems.org"
    path "/gems/#{name}"

    title css: '.page__heading'
    description css: ".gem__desc"
  end
end

html = "<html><head><title>Gem Listing</title></head><body><h1>Gem listing</h1>"

fetched_gem_data.each do |gem|
  puts "# #{gem['title'].squeeze}\n\n#{gem['description']}\n\n"

  html << "<h2>#{gem['title'].squeeze.gsub("\n", "")}</h2>"
  html << "<p>#{gem['description']}</p>"
end

html << "</body></html>"

File.write("Gemfile.html", html)
`open Gemfile.html` # open in browser
	#
	# This script reads your Gemfile and fetches the dependent gem's descriptions from Rubygems.
	# This helps me to quickly 'learn' a project, but looking up gems more easy.
	#
	# Usage:
	# - Download & place in project folder
	# - `gem install wombat`
	# - `ruby gemwhat.rb Gemfile`


	require 'wombat'

	body = File.read(ARGV[0])

	gems_names = body.scan(/^\sgem ["']([\d\w_-])["']/).flatten

	fetched_gem_data = gems_names.map do \|name\|
	sleep 0.5 # I want to be polite and not hit RubyGems too hard
	Wombat.crawl do
	base_url "https://rubygems.org"
	path "/gems/#{name}"

	title css: '.page__heading'
	description css: ".gem__desc"
	end
	end

	html = "<html><head><title>Gem Listing</title></head><body><h1>Gem listing</h1>"

	fetched_gem_data.each do \|gem\|
	puts "# #{gem['title'].squeeze}\n\n#{gem['description']}\n\n"

	html << "<h2>#{gem['title'].squeeze.gsub("\n", "")}</h2>"
	html << "<p>#{gem['description']}</p>"
	end

	html << "</body></html>"

	File.write("Gemfile.html", html)
	`open Gemfile.html` # open in browser