Init

Author: Alexey Simakov

Dockerfile

@@ -0,0 +1,15 @@
+FROM ruby:2.4.0
+
+RUN apt-get update
+RUN apt-get install -y squashfs-tools bison
+
+RUN curl -L http://enclose.io/rubyc/rubyc-linux-x64.gz | gunzip > rubyc
+RUN chmod +x rubyc && cp rubyc /usr/local/bin/
+
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+
+# Copy application files
+COPY ./ ./
+
+RUN rubyc test.rb

Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'nokogiri', '~> 1.10', '>= 1.10.1'

Gemfile.lock

@@ -0,0 +1,15 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  nokogiri (~> 1.10, >= 1.10.1)
+
+BUNDLED WITH
+   1.16.2

test.rb

@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+
+require 'rubygems'
+require 'bundler/setup'
+
+require 'nokogiri'
+require 'open-uri'
+
+# Fetch and parse HTML document
+doc = Nokogiri::HTML(open('http://example.com'))
+
+puts "### Search for nodes by css"
+doc.css('nav ul.menu li a', 'article h2').each do |link|
+  puts link.content
+end
+
+puts "### Search for nodes by xpath"
+doc.xpath('//nav//ul//li/a', '//article//h2').each do |link|
+  puts link.content
+end
+
+puts "### Or mix and match."
+doc.search('nav ul.menu li a', '//article//h2').each do |link|
+  puts link.content
+end