From 6f7d74f8a0c5a77441b34e3b42950c18127da3d7 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Sat, 3 Sep 2016 16:28:56 -0400
Subject: improve

Lazy load everything in the Page class.
---
 .gitignore  |  2 +-
 post-commit |  2 +-
 util.rb     | 54 +++++++++++++++++++++++++++++++++---------------------
 3 files changed, 35 insertions(+), 23 deletions(-)

diff --git a/.gitignore b/.gitignore
index 6e5dabf..2d65ef7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 /public/*.html
 /public/index.*
 /.var*
-/.tmp*
+.tmp*
diff --git a/post-commit b/post-commit
index 574f468..09d2f7f 100755
--- a/post-commit
+++ b/post-commit
@@ -4,7 +4,7 @@ branch=$(git name-rev --name-only HEAD)
 if [[ $branch == master ]]; then
 	git checkout pre-generated
 	git merge master -m 'bogus'
-	make
+	make --always-make -j12
 	git add .
 	git commit --amend -m "make: $(git log -n1 master --pretty=format:%B)"
 	git checkout master
diff --git a/util.rb b/util.rb
index e50406a..160a74d 100644
--- a/util.rb
+++ b/util.rb
@@ -60,33 +60,45 @@ class License
 end
 
 class Page
-	attr_accessor :title, :author, :gitdate, :date, :license, :slug, :content, :rights, :breadcrumbs
 	def initialize(infile)
-		input = File.read(infile)
-		doc = Pandoc::load('markdown', input)
+		@infile = infile
+	end
 
-		if doc['markdown_options']
-			doc = Pandoc::load('markdown'+doc['markdown_options'], input)
-		end
+	def infile ; @infile                      ; end
+	def input  ; @input ||= File.read(infile) ; end
+	def pandoc
+		if @pandoc.nil?
+			@pandoc = Pandoc::load('markdown', input)
 
-		gitdate = `git log -n1 --format='%cI' -- #{infile}`
+			if @pandoc['markdown_options']
+				@pandoc = Pandoc::load('markdown'+@pandoc['markdown_options'], input)
+			end
+		end
+		@pandoc
+	end
 
-		@title   = doc['title']   || input.split("\n",2).first
-		@author  = Person.new(doc['author']  || "Luke Shumaker")
-		@gitdate = DateTime.iso8601(gitdate) unless gitdate.empty?
-		@date    = Date.parse(doc['date']) unless doc['date'].nil?
-		@license = License.new(doc['license'] || "CC BY-SA-3.0")
-		@slug    = infile.sub(/\..*$/,'').sub(/^.*\//,'')
-		@content = doc.to('html5')
-		@rights  = "<p>The content of this page is Copyright © #{@date.year unless @date.nil?} #{@author.html}.</p>\n" +
-				   "<p>This page is licensed under the #{@license.html} license.</p>"
+	def title   ; @title   ||=             pandoc['title']   || input.split("\n",2).first ; end
+	def author  ; @author  ||= Person.new( pandoc['author']  || "Luke Shumaker")          ; end
+	def license ; @license ||= License.new(pandoc['license'] || "CC BY-SA-3.0")           ; end
+	def date    ; @date    ||= Date.parse(pandoc['date']) unless pandoc['date'].nil?      ; end
+	def slug    ; @slug    ||= infile.sub(/\..*$/,'').sub(/^.*\//,'')                     ; end
+	def content ; @content ||= pandoc.to('html5')                                         ; end
 
-		@breadcrumbs = '<a href="/">Luke Shumaker</a> » '
-		if (@slug == 'index')
-			@breadcrumbs += "blog"
-		else
-			@breadcrumbs += '<a href=/blog>blog</a> » ' + @slug
+	def gitdate
+		if @gitdate.nil?
+			raw = `git log -n1 --format='%cI' -- #{infile}`
+			@gitdate = DateTime.iso8601(raw) unless raw.empty?
 		end
+		@gitdate
+	end
+
+	def rights
+		@rights ||= "<p>The content of this page is Copyright © #{date.year unless date.nil?} #{author.html}.</p>\n" +
+					"<p>This page is licensed under the #{license.html} license.</p>"
+	end
+
+	def breadcrumbs
+		@breadcrumbs ||= '<a href="/">Luke Shumaker</a> » ' + ( (slug == 'index') ? "blog" : "<a href=/blog>blog</a> » #{slug}" )
 	end
 end
 
-- 
cgit v1.2.3