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# coding: utf-8
require 'date'
require 'set'
require 'config'
require 'license'
require 'page'
require 'pandoc'
require 'person'
class LocalPage < Page
def initialize(infile)
@infile = infile
super()
end
# Some of this code looks a little weird because it is
# super-aggressively lazy-evaluated and cached.
def local_infile ; @infile ; end
def local_input ; @input ||= File::read(local_infile); end
def local_intype
types = {
'md' => 'markdown'
}
ext = File::extname(local_infile).gsub(/^[.]/, '')
return types[ext] || ext
end
def _pandoc
if @pandoc.nil?
@pandoc = Pandoc::load(local_intype, local_input)
if @pandoc['pandoc_format']
@pandoc = Pandoc::load(@pandoc['pandoc_format'], local_input)
end
end
@pandoc
end
# Query simple document metadata
def atom_author ; @author ||= Person::new( _pandoc['author'] || Config::get.default_author) ; end
def atom_title ; @title ||= _pandoc['title'] || local_input.split("\n",2).first ; end
def html_class ; @class ||= _pandoc['class'] ; end
def html_head_extra ; @head ||= _pandoc['html_head_extra'] ; end
def local_license ; @license ||= License::new(_pandoc['license'] || Config::get.default_license); end
def page_categories ; @cats ||= _pandoc['categories'] || [] ; end
def atom_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>#{atom_title}</h1>\n"
end
# Insert the body
@content += _pandoc.to('html5 '+(_pandoc['pandoc_flags']||''))
end
@content
end
def atom_rights
# TODO: simplify year spans
@rights ||= "<p>The content of this page is Copyright © #{years.sort.join(', ')} #{atom_author.html}.</p>\n" +
"<p>This page is licensed under the #{local_license.html} license.</p>"
end
def _gitdates
@gitdates ||= `git log --format='%cI' -- #{local_infile}`.split("\n").select{|s|!s.empty?}.map{|s|DateTime::iso8601(s).to_time}
end
def page_published
if @_published.nil?
raw = _pandoc['published']
@_published = DateTime::parse(raw).to_time unless raw.nil?
end
if @_published.nil?
@_published = _gitdates.sort.first
end
@_published
end
def page_updated
if @_updated.nil?
raw = _pandoc['updated']
@_updated = DateTime::parse(raw).to_time unless raw.nil?
end
if @_updated.nil?
@updated = _gitdates.sort.last
end
@_updated
end
def page_years
@years ||= Set[*_gitdates.map{|dt|dt.year}]
end
def local_outfile
local_infile.sub(/^src/, 'out').sub(/\.[^\/.]*$/, '.html')
end
def local_depends
if @depends.nil?
basename = local_infile.sub(/^src/, 'out').sub(/\.[^\/.]*$/, '')
deps = Set['config.yaml', local_infile]
@depends = {
'' => deps,
"#{basename}.html" => deps.clone.merge(["tmpl/page.html.erb"]),
#"#{basename}.atom" => deps.clone.merge([local_infile, "tmpl/page.atom.erb"]),
}
end
@depends
end
def local_srcurl
@srcurl ||= Config::get.url + local_infile.sub(/^src/, '')
end
def url
@outurl ||= Config::get.url + local_outfile.sub(/^out/, '')
end
end
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