125 lines
3.1 KiB
Ruby
125 lines
3.1 KiB
Ruby
module AutoBlog
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class Post
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include Comparable
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include Convertible
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MATCHER = /^(\d+-\d+-\d+)-(.*)(\.[^.]+)$/
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# Post name validator. Post filenames must be like:
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# 2008-11-05-my-awesome-post.textile
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#
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# Returns <Bool>
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def self.valid?(name)
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name =~ MATCHER
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end
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attr_accessor :date, :slug, :ext
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attr_accessor :data, :content, :output
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# Initialize this Post instance.
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# +base+ is the String path to the dir containing the post file
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# +name+ is the String filename of the post file
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#
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# Returns <Post>
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def initialize(base, name)
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@base = base
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@name = name
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self.process(name)
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self.read_yaml(base, name)
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self.transform
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end
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# Spaceship is based on Post#date
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#
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# Returns -1, 0, 1
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def <=>(other)
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self.date <=> other.date
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end
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# Extract information from the post filename
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# +name+ is the String filename of the post file
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#
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# Returns nothing
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def process(name)
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m, date, slug, ext = *name.match(MATCHER)
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self.date = Time.parse(date)
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self.slug = slug
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self.ext = ext
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end
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# The generated directory into which the post will be placed
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# upon generation. e.g. "/2008/11/05/"
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#
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# Returns <String>
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def dir
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self.date.strftime("/%Y/%m/%d/")
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end
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# The generated relative url of this post
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# e.g. /2008/11/05/my-awesome-post.html
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#
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# Returns <String>
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def url
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self.dir + self.slug + ".html"
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end
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# The UID for this post (useful in feeds)
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# e.g. /2008/11/05/my-awesome-post
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#
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# Returns <String>
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def id
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self.dir + self.slug
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end
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# Calculate related posts.
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#
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# Returns [<Post>]
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def related_posts(posts)
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related = posts - [self]
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end
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# Add any necessary layouts to this post
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# +layouts+ is a Hash of {"name" => "layout"}
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# +site_payload+ is the site payload hash
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#
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# Returns nothing
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def add_layout(layouts, site_payload)
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related = related_posts(site_payload["site"]["posts"])
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payload = {"page" => self.data, "related_posts" => related}.merge(site_payload)
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self.content = Liquid::Template.parse(self.content).render(payload, [AutoBlog::Filters])
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layout = layouts[self.data["layout"]] || self.content
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payload = {"content" => self.content, "page" => self.data}
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self.output = Liquid::Template.parse(layout).render(payload, [AutoBlog::Filters])
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end
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# Write the generated post file to the destination directory.
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# +dest+ is the String path to the destination dir
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#
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# Returns nothing
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def write(dest)
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FileUtils.mkdir_p(File.join(dest, self.dir))
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path = File.join(dest, self.url)
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File.open(path, 'w') do |f|
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f.write(self.output)
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end
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end
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# Convert this post into a Hash for use in Liquid templates.
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#
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# Returns <Hash>
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def to_liquid
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{ "title" => self.data["title"] || "",
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"url" => self.url,
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"date" => self.date,
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"id" => self.id,
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"content" => self.content }
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end
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end
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end |