mirror of
https://github.com/wezm/wezm.net.git
synced 2024-12-24 21:19:53 +00:00
171 lines
4.8 KiB
Ruby
171 lines
4.8 KiB
Ruby
require 'nokogiri'
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require 'nanoc3'
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require 'uri'
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module Importer
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class Wordpress
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def initialize(wordpress_export_path, nanoc_site_path, rewrite_map_path)
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@export_file = File.open(wordpress_export_path)
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@export = Nokogiri::XML(@export_file)
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@site = Nanoc3::Site.new(nanoc_site_path)
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@rewrite_map = []
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@rewrite_map_path = rewrite_map_path
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load_categories
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load_tags
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end
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def load_categories
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puts "Loading categories"
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@categories = {}
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@export.xpath('//rss/channel/wp:category').each do |category|
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name = get(category, 'wp:cat_name')
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parent = get(category, 'wp:category_parent')
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parent = nil if parent.empty?
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@categories[name] = {
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:slug => get(category, 'wp:category_nicename'),
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:name => name,
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:parent => parent
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}
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end
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end
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def load_tags
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puts "Loading tags"
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@tags = {}
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@export.xpath('//rss/channel/wp:tag').each do |tag|
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slug = get(tag, 'wp:tag_slug')
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@tags[slug] = {
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:slug => slug,
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:name => get(tag, 'wp:tag_name'),
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}
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end
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end
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def find_topmost_category(category)
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return category if category[:parent].nil?
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find_topmost_category(@categories[category[:parent]])
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end
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def run
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# Loop over each post
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@export.xpath('//rss/channel/item').each do |item|
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item_type = item.xpath('wp:post_type').first.text
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case item_type
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when 'post'
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process_post(item)
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when 'page'
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process_page(item)
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when 'attachment'
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process_attachment(item)
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else
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puts "Unknown post type: #{item_type}"
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end
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end
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write_rewrite_map
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end
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protected
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def get(node, xpath)
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elem = node.at_xpath(xpath)
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elem ? elem.content : nil
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end
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def process_post(post)
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puts "Processing post: #{post.at_css('title').text}"
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content = get(post, 'content:encoded')
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tags = []
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post.css('category[domain=tag]').each do |tag|
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if tag['nicename']
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tags << tag['nicename']
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else
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tags << tag.text.downcase
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end
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end
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categories = []
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post.css('category[domain=category]').each do |category|
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categories << category.text
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end
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categories.uniq!
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if categories.empty?
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categories << 'Uncategorized'
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end
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begin
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post_date = Date.strptime(get(post, 'wp:post_date_gmt'), "%Y-%m-%d %H:%M:%S")
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rescue ArgumentError
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post_date = Date.today
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end
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attributes = {
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:tags => tags.uniq,
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:categories => categories,
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:permalink => get(post, 'link'),
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:status => get(post, 'wp:status'),
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:slug => get(post, 'wp:post_name'),
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:post_id => get(post, 'wp:post_id').to_i,
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:section => find_topmost_category(@categories[categories.first])[:slug],
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:title => get(post, 'title'),
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:created_at => get(post, 'wp:post_date_gmt'),
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}
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attributes[:kind] = attributes[:status] == 'publish' ? 'article' : 'draft'
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if attributes[:slug].empty?
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puts "WARNING: Error post #{attributes[:post_id]} has no slug, generating one"
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attributes[:slug] = attributes[:title].downcase.gsub(/[^0-9a-zA-Z]/, '-').gsub(/-{2,}/, '-')
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end
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if attributes[:status] == 'draft'
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path = ['', 'drafts', attributes[:slug], ''].join('/')
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else
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path = ['', attributes[:section], post_date.year, ("%02d" % post_date.month), attributes[:slug], ''].join('/')
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end
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add_item(content, attributes, path)
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end
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def process_page(page)
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puts "WARNING: Skipping page: #{page.at_css('title').text}"
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end
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def process_attachment(attachment)
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# puts "Processing attachment"
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# Don't need these for now
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end
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def add_item(content, attributes, identifier)
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# content = row['post_content']
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# attributes = {
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# :title => row['post_title'],
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# :published_on => row['post_date_gmt'],
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# :modified_on => row['post_modified_gmt'],
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# :status => row['post_status'],
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# :excerpt => row['post_excerpt']
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# }
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# identifier = '/posts/' + post_date.year.to_s + '/' + post_date.month.to_s + '/' + post_name + '/'
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if attributes[:status] == 'publish'
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@rewrite_map << [attributes[:permalink], identifier]
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end
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@site.data_sources.first.create_item(content, attributes, identifier)
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puts "Added item at #{identifier}"
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end
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def write_rewrite_map
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File.open(@rewrite_map_path, 'w') do |f|
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@rewrite_map.each do |old_url, new_path|
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uri = URI.parse(old_url)
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f.puts uri.path + "\t" + new_path
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puts uri.path + " => " + new_path
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end
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end
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end
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end
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end
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