Add authors and publication date to the book

Author: jnavila

Rakefile

@@ -2,24 +2,35 @@ namespace :book do
   desc 'build basic book formats'
   task :build do
 
-    puts "Generating contributors list"
-    `git shortlog -s master| grep -v -E "(Straub|Chacon)" | cut -f 2- | column -c 120 > book/contributors.txt`
+    `cp progit.asc progit.asc.bak`
+    begin
+      version_string = ENV['TRAVIS_TAG'] || '0'
+      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 }
 
-    puts "Converting to HTML..."
-    `bundle exec asciidoctor progit.asc`
-    puts " -- HTML output at progit.html"
+      puts "Generating contributors list"
+      `git shortlog -s master| grep -v -E "(Straub|Chacon)" | cut -f 2- | column -c 120 > book/contributors.txt`
 
-    puts "Converting to EPub..."
-    `bundle exec asciidoctor-epub3 progit.asc`
-    puts " -- Epub output at progit.epub"
+      puts "Converting to HTML..."
+      `bundle exec asciidoctor progit.asc`
+      puts " -- HTML output at progit.html"
 
-    puts "Converting to Mobi (kf8)..."
-    `bundle exec asciidoctor-epub3 -a ebook-format=kf8 progit.asc`
-    puts " -- Mobi output at progit.mobi"
+      puts "Converting to EPub..."
+      `bundle exec asciidoctor-epub3 progit.asc`
+      puts " -- Epub output at progit.epub"
 
-    puts "Converting to PDF... (this one takes a while)"
-    `bundle exec asciidoctor-pdf progit.asc 2>/dev/null`
-    puts " -- PDF output at progit.pdf"
+      puts "Converting to Mobi (kf8)..."
+      `bundle exec asciidoctor-epub3 -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`
+      puts " -- PDF output at progit.pdf"
+
+    ensure
+      `mv progit.asc.bak progit.asc`
+    end
   end
 end
 

progit.asc

@@ -1,5 +1,7 @@
 Pro Git
 =======
+Scott Chacon; Ben Straub
+$$VERSION$$, $$DATE$$
 :doctype: book
 :docinfo:
 :toc: