my crappy blog engine - being replaced by tumblr i guess ¯\_(ツ)_/¯

blog.rb

# encoding: utf-8
require 'yaml'
require 'find'
require 'mini_magick'

# slurp up .erb files in blog/ 
# parse the yaml frontmatter 
# generate views in views/blog/
# populate the articles array 
#   article
#     - url
#     - title
#     - date
#     - tags[]
#articles = []

class BlogArticle
  SUMMARY_SEPARATOR="READMORE"
  MAX_IMG_WIDTH=260

  attr_reader :date, :title, :tags, :page, :url, :img, :thumb
  def initialize(file)
    f = File.read(file)
    f.force_encoding("UTF-8")
    #puts "the encoding: #{f.encoding}"
    #puts "is this invalid?!#{f}"
    #puts "is this invalid?!#{f.split("---\n")[1]}"
    y = YAML.load(f.split("---\n")[1])
    #puts y
    @page = f.split("---\n")[2]
    # parse yaml
    @title = y["title"]
    @date = Date.parse y["date"]
    @page = f.split("---\n")[2]
    @tags = []
    y["tags"].to_s.delete(' ').split(',').each do |t|
      @tags << t
    end
    @img = y["img"]
    # make thumbnail
    if @img
      #puts "@img: #{@img}"
      image = MiniMagick::Image.open("./public/#{@img}")
      if image[:width] > MAX_IMG_WIDTH
        thumb_filename = "/img/thumb/#{File.basename(@img, File.extname(@img))}_thumb#{File.extname(@img)}"
        #puts thumb_filename
        if !File.exists?("./public/#{thumb_filename}")
          #TODO thumbnail img
          percent = ((MAX_IMG_WIDTH.to_f / image[:width].to_f) * 100).to_i
          #puts "percent: #{percent}"
          image.resize "#{percent}%"
          image.write "./public/#{thumb_filename}"
        end
        @thumb = thumb_filename
      else
        @thumb = @img
      end
    end

    @url = "blog/#{@date.year}/#{File.basename(file, ".*")}"
  end

  def body
    @page.gsub(/#{SUMMARY_SEPARATOR}/, '')
  end

  def summary
    return @page.split(SUMMARY_SEPARATOR).first
  end

  def parse_yaml_frontmatter(frontmatter)
    yaml = YAML.load(frontmatter)
    @title = yaml["title"]
    @date = Date.parse yaml["date"]
    @tags = []
    yaml["tags"].to_s.delete(' ').split(',').each do |t|
      @tags << t
    end
    @img = yaml["img"]
  end

  def make_thumbnail
    if @img
      #puts "@img: #{@img}"
      image = MiniMagick::Image.open("./public/#{@img}")
      if image[:width] > MAX_IMG_WIDTH
        thumb_filename = "/img/thumb/#{File.basename(@img, File.extname(@img))}_thumb#{File.extname(@img)}"
        #puts thumb_filename
        if !File.exists?("./public/#{thumb_filename}")
          #TODO thumbnail img
          percent = ((MAX_IMG_WIDTH.to_f / image[:width].to_f) * 100).to_i
          #puts "percent: #{percent}"
          image.resize "#{percent}%"
          image.write "./public/#{thumb_filename}"
        end
        @thumb = thumb_filename
      else
        @thumb = @img
      end
    end
  end
end

def slurp_files(dir)
  articles = []
  #puts "dir: #{dir}"
  Find.find(dir) do |f|
    if f =~ /.*\.erb$/
      articles << BlogArticle.new(f)
    end
  end
  return articles
end

def find_article(url, articles)
  articles.each do |a|
    if a.url == url
      return a
    end
  end
  return nil
end

class Blog
  attr_accessor :articles
  def initialize(dir)
    @articles = []
    #puts "dir: #{dir}"
    Find.find(dir) do |f|
      if f =~ /.*\.erb$/
        @articles << BlogArticle.new(f)
      end
    end
  end

  def find_article(url)
    @articles.each do |a|
      if a.url == url
        return a
      end
    end
    return nil
  end
end

#articles = slurp_files("#{File.dirname(__FILE__)}/views/blog/")
#puts articles
#puts "ok"

blog_spec.rb

require './blog'

describe BlogArticle do
  before do
    @blog_article = BlogArticle.new("./spec/blogs/firedrill_xbit1set.erb")
  end
  it "parses the yaml frontmatter" do
    frontmatter =<<EOS
---
title: Firedrill's set from X-Bit 1
date: 2012/04/23
img: ./spec/firedrillxbit.jpg
tags: liveset
---
EOS

    @blog_article.parse_yaml_frontmatter(frontmatter)
    @blog_article.title.should == "Firedrill's set from X-Bit 1"
    @blog_article.date.should == Date.parse("2012/04/23")
    puts @blog_article.img
    File.exists?(@blog_article.img).should be_true
    @blog_article.tags.should == ["liveset"]
  end
  it "creates a thumbnail from an image" do
    @blog_article.make_thumbnail

  end
  it "returns the body of the article" do
    @blog_article.body
  end
  it "returns the summary of the article" do
    @blog_article.summary
  end
  it "returns the url of the article" do
    @blog_article.url
  end
end

describe Blog do
  before do
    @blog = Blog.new("./spec/blogs")
  end
  it "parses the blog files into an array of BlogArticles" do
    @blog.articles
  end
  it "finds an BlogArticle by url" do
    @blog.find_article(@blog.articles.first.url)
  end
end