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# coding: utf-8
require 'date'
require 'set'
module Sitegen
def self.init
@mk = {}
@want = Set[]
end
def self.add(page)
@deps = nil
page.local_depends.keys.each do |filename|
@mk[filename] = page unless filename.empty?
end
end
def self.pages
@mk.values.to_set
end
def self.want(filename)
@deps = nil
@want.add(filename)
end
def self.dependencies
if @deps.nil?
libfiles = Dir::entries('lib').select{|s|s!='..'}.map{|s|"lib/#{s}"}.to_set
ret = {}
ret[:all] = @want
@want.each do |filename|
ret[filename] = libfiles.clone.merge(@mk[filename].local_depends[filename])
end
@deps = ret
end
@deps
end
def self.Makefile()
str = ''
dependencies.each do |target, deps|
str += "#{target.to_s}: #{deps.sort.join(' ')}\n"
end
return str
end
def self.make(target)
newest = DateTime::new(0)
(dependencies[target] || []).each do |dep|
ts = dep.make(dep)
newest = ts if ts > newest
end
unless target.is_a?(String)
return DateTime::now
end
if File::exist?(target)
ctime = File::ctime(target)
if ctime > newest
return ctime
end
end
generate(target)
return File::ctime(target)
end
def self.generate(target)
# TODO
end
end
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