wip

1 files changed, 114 insertions, 0 deletions

diff --git a/lib/page_local.rb b/lib/page_local.rb
new file mode 100644
index 0000000..1ca14f0
--- /dev/null
+++ b/lib/page_local.rb
@@ -0,0 +1,114 @@
+# coding: utf-8
+require 'date'
+require 'erb'
+require 'set'
+
+require 'config'
+require 'license'
+require 'page'
+require 'pandoc'
+require 'person'
+
+class LocalPage < Page
+	def initialize(infile)
+		@infile = infile
+	end
+
+	# Some of this code looks a little weird because it is
+	# super-aggressively lazy-evaluated and cached.
+
+	def _infile ; @infile                       ; end
+	def _input  ; @input ||= File::read(_infile) ; end
+	def _pandoc
+		if @pandoc.nil?
+			types = {
+				'md' => 'markdown'
+			}
+
+			ext = File::extname(_infile).gsub(/^[.]/, '')
+			type = types[ext] || ext
+			@pandoc = Pandoc::load(type, _input)
+
+			if @pandoc['pandoc_format']
+				@pandoc = Pandoc::load(@pandoc['pandoc_format'], _input)
+			end
+		end
+		@pandoc
+	end
+
+	# Query simple document metadata 
+	def title     ; @title     ||= _pandoc['title'] || _input.split("\n",2).first                   ; end
+	def author    ; @author    ||= Person::new( _pandoc['author']  || Config::get.default_author) ; end
+	def license   ; @license   ||= License::new(_pandoc['license'] || Config::get.default_license); end
+	def head      ; @head      ||= _pandoc['html_head_extra']                                       ; end
+	def class     ; @class     ||= _pandoc['class']                                                 ; end
+	def _tags     ; @_tags     ||= _pandoc['tags'] || []                                            ; end
+
+	def content
+		if @content.nil?
+			@content = ''
+			# Only insert the title if it came from Pandoc metadata;
+			# if the title was inferred from the the body content,
+			# then it is already in the page.
+			unless _pandoc['title'].nil?
+				@content += "<h1 class=title>#{title}</h1>\n"
+			end
+			
+			# Insert the body
+			@content = _pandoc.to('html5 '+(_pandoc['pandoc_flags']||''))
+		end
+		@content
+    end
+
+	def rights
+		# TODO: simplify year spans
+		@rights ||= "<p>The content of this page is Copyright © #{years.sort.join(', ')} #{author.html}.</p>\n" +
+					"<p>This page is licensed under the #{license.html} license.</p>"
+	end
+
+	def _gitdates
+		@gitdates ||= `git log --format='%cI' -- #{_infile}`.split('\n').select{|s|!s.empty?}.map{|s|DateTime::iso8601(s)}
+	end
+
+	def _published
+		if @_published.nil?
+			raw = _pandoc['published']
+			@_published = Datetime::parse(raw) unless raw.nil?
+		end
+		if @_published.nil?
+			@_published = _gitdates.sort.first
+		end
+		@_published
+	end
+
+	def _updated
+		if @_updated.nil?
+			raw = _pandoc['updated']
+			@_updated = DateTime::parse(raw) unless raw.nil?
+		end
+		if @_updated.nil?
+			@updated = _gitdates.sort.last
+		end
+		@_updated
+	end
+	
+	def _years
+			@years ||= Set[*_gitdates.map{|dt|dt.year}]
+	end
+
+	def abssrcpath
+		@srcpath ||= _infile.sub(/^(src|out)\//, '/')
+	end
+	def absoutpath
+		@outpath ||= abssrcpath.sub(/\.[^\/.]*$/, '.html').sub(/\/index[.]html$/, '')
+	end
+
+	def url
+		@url ||= Config::get.url + absoutpath
+	end
+	def srcurl
+		@srcurl ||= Config::get.url + abssrcpath
+	end
+end
+
+ERB::new(File::read("tmpl/page.html.erb")).def_method(LocalPage, 'html()', "tmpl/page.html.erb")