From 12e8b659158681f4f47ab30e3e550def19928a38 Mon Sep 17 00:00:00 2001
From: George Moura <gwmoura@gmail.com>
Date: Sun, 1 May 2016 22:14:16 -0300
Subject: [PATCH] add authors page

---
 _plugins/authors.rb | 44 ++++++++++++++++++++++++++++++++++++++++++++
 _sass/_layout.scss  |  2 ++
 authors.html        |  9 +++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 _plugins/authors.rb
 create mode 100644 authors.html

diff --git a/_plugins/authors.rb b/_plugins/authors.rb
new file mode 100644
index 0000000..d30c85e
--- /dev/null
+++ b/_plugins/authors.rb
@@ -0,0 +1,44 @@
+require 'digest/md5'
+module Jekyll
+
+  class Author
+    attr_accessor :author, :posts
+    def initialize(author, posts)
+      self.author = author
+      self.posts = posts
+    end
+
+    def to_liquid
+      hash = Digest::MD5.hexdigest(self.author['mail'])
+      text = "<p><div class=\"gravatar\"><img class=\"gravatar\" src=\"http://www.gravatar.com/avatar/#{hash}?s=100\"></div> <b>#{self.author['name']}</b></p>"
+      text += "<p>Posts:</p>"
+      text += "<ul>"
+      self.posts.each do |p|
+        text += "<li><a href=\"#{p[:url]}\">#{p[:title]}</a></li>"
+      end
+      text += "</ul>"
+      text
+    end
+  end
+
+  class AuthorsPageGenerator < Generator
+    safe true
+
+    def generate(site)
+      authors = {}
+      site.posts.docs.each do |post|
+        if !authors[post.data["author"]["github"]].nil?
+          authors[post.data["author"]["github"]][:posts] << {:url => post.url, :title => post.data["title"]}
+        else
+          authors[post.data["author"]["github"]] = {:author => post.data["author"], :posts => [{:url => post.url, :title => post.data["title"]}]}
+        end
+      end
+      authors_page = site.pages.detect {|page| page.name == 'authors.html'}
+      authors_page.data['authors'] = []
+      authors.each do |author, post_data|
+        authors_page.data['authors'] << Author.new(post_data[:author], post_data[:posts])
+      end
+    end
+  end
+
+end
diff --git a/_sass/_layout.scss b/_sass/_layout.scss
index 29b5e1c..dceb8ba 100644
--- a/_sass/_layout.scss
+++ b/_sass/_layout.scss
@@ -429,3 +429,5 @@ pre code.hljs {
 		}
 	}
 }
+
+.gravatar{ width: 100px;}
diff --git a/authors.html b/authors.html
new file mode 100644
index 0000000..e1655ac
--- /dev/null
+++ b/authors.html
@@ -0,0 +1,9 @@
+---
+layout: page
+title: "Autores"
+permalink: /authors/
+---
+  {% for author in page.authors %}
+  {{ author }}
+  <hr/>
+  {% endfor %}