samhuri.net/bin/blog.rb
2013-09-28 16:04:51 -07:00

262 lines
7.6 KiB
Ruby
Executable file

#!/usr/bin/env ruby
# encoding: utf-8
require 'time'
require 'rubygems'
require 'bundler/setup'
require 'builder'
require 'json'
require 'mustache'
require 'rdiscount'
DefaultKeywords = ['sjs', 'sami samhuri', 'sami', 'samhuri', 'samhuri.net', 'blog']
ShortURLCodeSet = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
ShortURLBase = ShortURLCodeSet.length.to_f
def main
srcdir = ARGV.shift.to_s
destdir = ARGV.shift.to_s
Dir.mkdir(destdir) unless File.exists?(destdir)
unless File.directory?(srcdir)
puts 'usage: blog.rb <source dir> <dest dir>'
exit 1
end
b = Blag.new srcdir, destdir
puts 'title: ' + b.title
puts 'subtitle: ' + b.subtitle
puts 'url: ' + b.url
puts "#{b.posts.size} posts"
b.generate!
puts 'done blog'
end
class Blag
attr_accessor :title, :subtitle, :url
def self.go! src, dest
self.new(src, dest).generate!
end
def initialize src, dest
@src = src
@dest = dest
@blog_dest = File.join(dest, 'blog')
@css_dest = File.join(dest, 'css')
read_blog
end
def generate!
generate_posts
generate_index
generate_rss
generate_posts_json
generate_archive
generate_short_urls
copy_assets
end
def generate_index
# generate landing page
index_template = File.read(File.join('templates', 'blog', 'index.html'))
post = posts.first
values = { :post => post,
:styles => post[:styles],
:article => html(post),
:previous => posts[1],
:filename => post[:filename],
:url => post[:relative_url],
:comments => post[:comments]
}
index_html = Mustache.render(index_template, values)
File.open(File.join(@blog_dest, 'index.html'), 'w') {|f| f.puts(index_html) }
end
def generate_posts
page_template = File.read(File.join('templates', 'blog', 'post.html'))
posts.each_with_index do |post, i|
values = { :title => post[:title],
:link => post[:link],
:styles => post[:styles],
:article => html(post),
:previous => i < posts.length - 1 && posts[i + 1],
:next => i > 0 && posts[i - 1],
:filename => post[:filename],
:url => post[:relative_url],
:comments => post[:comments],
:keywords => (DefaultKeywords + post[:tags]).join(',')
}
post[:html] = Mustache.render(page_template, values)
File.open(File.join(@blog_dest, post[:filename]), 'w') {|f| f.puts(post[:html]) }
end
end
def generate_posts_json
json = JSON.generate({ :published => posts.map {|p| p[:filename]} })
File.open(File.join(@blog_dest, 'posts.json'), 'w') { |f| f.puts(json) }
end
def generate_archive
archive_template = File.read(File.join('templates', 'blog', 'archive.html'))
html = Mustache.render(archive_template, :posts => posts)
File.open(File.join(@blog_dest, 'archive'), 'w') { |f| f.puts(html) }
end
def generate_rss
# posts rss
File.open(rss_file, 'w') { |f| f.puts(rss_for_posts.target!) }
end
def generate_short_urls
htaccess = ['RewriteEngine on', 'RewriteRule ^$ http://samhuri.net [R=301,L]']
posts.reverse.each_with_index do |post, i|
code = shorten(i + 1)
htaccess << "RewriteRule ^#{code}$ #{post[:url]} [R=301,L]"
end
File.open(File.join(@dest, 's42', '.htaccess'), 'w') do |f|
f.puts(htaccess)
end
end
def shorten(n)
short = ''
while n > 0
short = ShortURLCodeSet[n % ShortURLBase, 1] + short
n = (n / ShortURLBase).floor
end
short
end
def copy_assets
Dir[File.join(@src, 'css', '*.css')].each do |stylesheet|
minified = File.join(@css_dest, File.basename(stylesheet).sub('.css', '.min.css'))
`yui-compressor #{stylesheet} #{minified}`
end
Dir[File.join(@src, 'files', '*')].each do |file|
FileUtils.copy(file, File.join(@dest, 'f', File.basename(file)))
end
Dir[File.join(@src, 'images', '*')].each do |file|
FileUtils.copy(file, File.join(@dest, 'images', 'blog', File.basename(file)))
end
end
def posts
prefix = File.join(@src, 'published') + '/'
@posts ||= Dir[File.join(prefix, '*')].sort.reverse.map do |filename|
lines = File.readlines(filename)
post = { :filename => filename.sub(prefix, '').sub(/\.(html|m(ark)?d(own)?)$/i, '') }
loop do
line = lines.shift.strip
m = line.match(/^(\w+):/)
if m && param = m[1].downcase
post[param.to_sym] = line.sub(Regexp.new('^' + param + ':\s*', 'i'), '').strip
elsif line.match(/^----\s*$/)
lines.shift while lines.first.strip.empty?
break
else
puts "ignoring unknown header: #{line}"
end
end
post[:type] = post[:link] ? :link : :post
post[:title] += "" if post[:type] == :link
post[:styles] = (post[:styles] || '').split(/\s*,\s*/)
post[:tags] = (post[:tags] || '').split(/\s*,\s*/)
post[:relative_url] = post[:filename].sub(/\.html$/, '')
post[:url] = @url + '/' + post[:relative_url]
post[:timestamp] = post[:timestamp].to_i
post[:content] = lines.join
post[:body] = RDiscount.new(post[:content], :smart).to_html
post[:rfc822] = Time.at(post[:timestamp]).rfc822
# comments on by default
post[:comments] = (post[:comments] == 'on' || post[:comments].nil?)
post
end.sort { |a, b| b[:timestamp] <=> a[:timestamp] }
end
private
def blog_file
File.join(@src, 'blog.json')
end
def read_blog
blog = JSON.parse(File.read(blog_file))
@title = blog['title']
@subtitle = blog['subtitle']
@url = blog['url']
end
def html(post)
Mustache.render(template(post[:type]), post)
end
def template(type)
if type == :post
@post_template ||= File.read(File.join('templates', 'blog', 'post.mustache'))
elsif type == :link
@link_template ||= File.read(File.join('templates', 'blog', 'link.mustache'))
else
raise 'unknown post type: ' + type
end
end
def rss_template(type)
if type == :post
@post_rss_template ||= File.read(File.join('templates', 'blog', 'post.rss.html'))
elsif type == :link
@link_rss_template ||= File.read(File.join('templates', 'blog', 'link.rss.html'))
else
raise 'unknown post type: ' + type
end
end
def rss_file
File.join(@blog_dest, 'sjs.rss')
end
def rss_html(post)
Mustache.render(rss_template(post[:type]), { :post => post })
end
def rss_for_posts(options = {})
title = options[:title] || @title
subtitle = options[:subtitle] || @subtitle
url = options[:url] || @url
rss_posts ||= options[:posts] || posts[0, 10]
xml = Builder::XmlMarkup.new
xml.instruct! :xml, :version => '1.0'
xml.instruct! 'xml-stylesheet', :href => 'http://samhuri.net/css/blog-all.min.css', :type => 'text/css'
rss_posts.each do |post|
post[:styles].each do |style|
xml.instruct! 'xml-stylesheet', :href => "http://samhuri.net/css/#{style}.min.css", :type => 'text/css'
end
end
xml.rss :version => '2.0' do
xml.channel do
xml.title title
xml.description subtitle
xml.link url
xml.pubDate posts.first[:rfc822]
rss_posts.each do |post|
xml.item do
xml.title post[:title]
xml.description rss_html(post)
xml.pubDate post[:rfc822]
xml.author post[:author]
xml.link post[:link] || post[:url]
xml.guid post[:url]
end
end
end
end
xml
end
end
main if $0 == __FILE__