Merge pull request #1130 from dfa1/simplify_rakefile

inject version and date using attributes

Author: ben

Rakefile

@@ -2,37 +2,32 @@ namespace :book do
   desc 'build basic book formats'
   task :build do
 
-    `cp progit.asc progit.asc.bak`
     begin
       version_string = ENV['TRAVIS_TAG'] || `git describe --tags`.chomp
       if version_string.empty?
         version_string = '0'
       end
-      text = File.read('progit.asc')
-      new_contents = text.gsub("$$VERSION$$", version_string).gsub("$$DATE$$", Time.now.strftime("%Y-%m-%d"))
-      File.open("progit.asc", "w") {|file| file.puts new_contents }
-
+      date_string = Time.now.strftime("%Y-%m-%d")
+      params = "--attribute revnumber='#{version_string}' --attribute revdate='#{date_string}'"
       puts "Generating contributors list"
       `git shortlog -s | grep -v -E "(Straub|Chacon)" | cut -f 2- | column -c 120 > book/contributors.txt`
 
       puts "Converting to HTML..."
-      `bundle exec asciidoctor progit.asc`
+      `bundle exec asciidoctor #{params} progit.asc`
       puts " -- HTML output at progit.html"
 
       puts "Converting to EPub..."
-      `bundle exec asciidoctor-epub3 progit.asc`
+      `bundle exec asciidoctor-epub3 #{params} progit.asc`
       puts " -- Epub output at progit.epub"
 
       puts "Converting to Mobi (kf8)..."
-      `bundle exec asciidoctor-epub3 -a ebook-format=kf8 progit.asc`
+      `bundle exec asciidoctor-epub3 #{params} -a ebook-format=kf8 progit.asc`
       puts " -- Mobi output at progit.mobi"
 
       puts "Converting to PDF... (this one takes a while)"
-      `bundle exec asciidoctor-pdf progit.asc 2>/dev/null`
+      `bundle exec asciidoctor-pdf #{params} progit.asc 2>/dev/null`
       puts " -- PDF output at progit.pdf"
 
-    ensure
-      `mv progit.asc.bak progit.asc`
     end
   end
 end

progit.asc

@@ -1,7 +1,7 @@
 Pro Git
 =======
 Scott Chacon; Ben Straub
-$$VERSION$$, $$DATE$$
+
 :doctype: book
 :docinfo:
 :toc: