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# coding: utf-8
require 'date'
require 'fileutils'
require 'set'
require 'page_local'
module Sitegen
def self.init
@local = {}
@remote = {}
@want = Set[]
end
def self.add(page)
@deps = nil
if page.is_a?(LocalPage)
page.local_depends.keys.each do |filename|
@local[filename] = page unless filename.empty?
end
else
@remote[page.url] = page
end
end
def self.pages
@local.values.to_set.merge(@remote.values)
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(@local[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 = Time::new(0)
(dependencies[target] || []).each do |dep|
ts = make(dep)
newest = ts if ts > newest
end
unless target.is_a?(String)
return Time::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)
case
when @local[target].nil?
raise "No rule to make target '#{target}'. Stop."
when target.end_with?(".atom")
puts "atom #{target}"
write_atomic(target) do |file|
file.puts('<?xml version="1.0" encoding="utf-8"?>')
file.print(@local[target].atom)
end
when target.end_with?(".html")
puts "html #{target}"
write_atomic(target) do |file|
file.print(@local[target].html)
end
else
raise "No rule to make target '#{target}'. Stop."
end
end
def self.write_atomic(outfilename)
tmpfilename = "#{File::dirname(outfilename)}/.tmp#{File::basename(outfilename)}"
FileUtils::mkdir_p(File::dirname(tmpfilename))
tmpfile = File::new(tmpfilename, 'wb')
begin
yield tmpfile
rescue Exception => e
tmpfile.close
File::unlink(tmpfilename)
raise e
end
tmpfile.close
File::rename(tmpfilename, outfilename)
end
end
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