got plugin installation, enabling working

.gitignore

@@ -14,6 +14,8 @@ public/stylesheets/scaffold.css
 public/photo_album_photo_images/*
 public/uploads/*
 public/themes/*
+public/ansuz_plugins.xml
+public/ansuz_themes.xml
 themes/*
 tmp/*
 vendor/gems/*

ansuz_installed_plugins/README

@@ -0,0 +1 @@
+This directory is used as a holding directory for ansuz plugins.  When you install a plugin, it is placed here.  When you enable a plugin, it is copied from here to vendor/plugins

config/routes.rb

@@ -5,8 +5,13 @@
   map.from_plugin :ansuz_theme_repository
   map.from_plugin :ansuz_theme_installer
   map.from_plugin :ansuz_plugin_repository
+  map.from_plugin :ansuz_plugin_installer
   map.from_plugin :ansuz_menu_system
 
+  Ansuz::PluginManagerInstance.plugins_for_routes.each do |plugin|
+    map.from_plugin plugin
+  end
+
   map.resources :tags
   map.resources :users
   map.resources :comments

lib/ansuz/plugin_manager.rb

@@ -86,6 +86,17 @@ def register_page_type name, modules=[]
       @page_types << [name, modules]
     end
 
+    # Determine all of the installed plugins
+    def plugins_for_routes
+      # plugins installed into the holding directory
+      installed_plugins = Dir.glob(File.join(RAILS_ROOT, 'ansuz_installed_plugins', '*')).map{|d| d.split("/").split("\\").last.last}
+      # plugins in vendor/plugins
+      enabled_plugins = Dir.glob(File.join(RAILS_ROOT, 'vendor', 'plugins', '*')).map{|d| d.split("/").split("\\").last.last}
+
+      # Find the intersection of the two directories, and return them as syms
+      (installed_plugins & enabled_plugins).map(&:to_sym)
+    end
+
     protected
     def create_settings(name)
       begin

lib/plugins_management_helper.rb

@@ -0,0 +1,13 @@
+module PluginsManagementHelper
+  def list_plugins
+    plugins_dir.entries.sort.delete_if{|e| e =~ /^\.$|^\.\.$/ }
+  end
+
+  def plugins_dir
+    Dir.new(plugins_root)
+  end
+
+  def plugins_root
+    "#{RAILS_ROOT}/ansuz_installed_plugins"
+  end
+end

vendor/plugins/ansuz_plugin_installer/README

@@ -0,0 +1,4 @@
+AnsuzPluginInstaller
+===================
+
+This plugin provides the ability to install themes from remote repositories.

vendor/plugins/ansuz_plugin_installer/Rakefile

@@ -0,0 +1,22 @@
+require 'rake'
+require 'rake/testtask'
+require 'rake/rdoctask'
+
+desc 'Default: run unit tests.'
+task :default => :test
+
+desc 'Test the ansuz_content_section plugin.'
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'lib'
+  t.pattern = 'test/**/*_test.rb'
+  t.verbose = true
+end
+
+desc 'Generate documentation for the ansuz_content_section plugin.'
+Rake::RDocTask.new(:rdoc) do |rdoc|
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title    = 'AnsuzContentSection'
+  rdoc.options << '--line-numbers' << '--inline-source'
+  rdoc.rdoc_files.include('README')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end

vendor/plugins/ansuz_plugin_installer/app/controllers/admin/ansuz_plugin_installers_controller.rb

@@ -0,0 +1,56 @@
+class Admin::AnsuzPluginInstallersController < Admin::BaseController
+  unloadable # This is required if you subclass a controller provided by the base rails app
+  include PluginsManagementHelper
+  helper :plugins_management
+
+  layout 'admin'
+
+  before_filter :load_plugins_listing_var
+  before_filter :load_plugins, :only => [:index]
+
+  protected
+  def load_plugins_listing_var
+    @plugins_util = Ansuz::JAdams::AnsuzPluginsListing
+  end
+
+  def load_plugins
+    @plugins = @plugins_util.listing
+  end
+
+  public
+  def index
+  end
+
+  # TODO: These should be REST actions probably
+  def install
+    @plugins_util.install(params[:repository_url], params[:name])
+    flash[:notice] = "Plugin installed successfully."
+    redirect_to admin_ansuz_plugin_installers_path
+  end
+
+  # expects a params[:name]
+  def enable
+    @plugins_util.enable(params[:name])
+    flash[:notice] = "Plugin has been enabled."
+    redirect_to admin_ansuz_plugin_installers_path
+  end
+
+  # expects a params[:name]
+  def disable
+    @plugins_util.disable(params[:name])
+    flash[:notice] = "Plugin has been disabled."
+    redirect_to admin_ansuz_plugin_installers_path
+  end
+
+  def update
+    @plugins_util.update(params[:id])
+    flash[:notice] = "Plugin updated successfully."
+    redirect_to admin_ansuz_plugin_installers_path
+  end
+
+  def destroy
+    @plugins_util.delete(params[:id])
+    flash[:notice] = "Plugin deleted successfully."
+    redirect_to admin_ansuz_plugin_installers_path
+  end
+end

vendor/plugins/ansuz_plugin_installer/app/views/admin/ansuz_plugin_installers/index.html.erb

@@ -0,0 +1,38 @@
+<%= title "Install Plugins" -%>
+<% content_for :sidebar do -%>
+  <div class='note'>
+    To install a plugin, just click on its "Install" link.<br /><br />
+
+    At the moment, the only repository available to you is the master plugin repository at www.ansuzcms.com.  This is hard coded in, and there's currently no interface for adding new plugin repositories (but one's coming!).  If you're adventurous and desperate, ansuz's main repository is the same code you've got, so you could easily change the hardcoded value to your own instance of ansuz and be off and running.<br /><br />
+  </div>
+<% end -%>
+<div class='fullwidth'>
+  <table class='subdued'>
+    <thead>
+      <tr>
+        <th>Name</th>
+        <th></th>
+      </tr>
+    </thead>
+    <tbody>
+      <% @plugins.each do |plugin| -%>
+        <tr class="<%= cycle('odd', 'even') %>">
+          <td><%= plugin[0] %></td>
+          <td>
+            <% if @plugins_util.installed?(plugin[0]) %>
+              <% if @plugins_util.enabled?(plugin[0]) %>
+                <%= link_to("Disable", disable_admin_ansuz_plugin_installers_path(:name => plugin[0])) -%> | 
+              <% else %>
+                <%= link_to("Enable", enable_admin_ansuz_plugin_installers_path(:name => plugin[0])) -%> | 
+              <% end %>
+              <%= link_to("Update", admin_ansuz_plugin_installer_path(plugin[0]), :method => :put) -%> | 
+              <%= link_to("Uninstall", admin_ansuz_plugin_installer_path(plugin[0]), :method => :delete, :confirm => "Are you sure?") -%>
+            <% else %>
+              <%= link_to("Install", install_admin_ansuz_plugin_installers_path(:repository_url => plugin[1], :name => plugin[0])) -%>
+            <% end %>
+          </td>
+        </tr>
+      <% end -%>
+    </tbody>
+  </table>
+</div>

vendor/plugins/ansuz_plugin_installer/init.rb

@@ -0,0 +1 @@
+Ansuz::PluginManagerInstance.register_admin_menu_entry('Manage', 'Plugins', '/admin/ansuz_plugin_installers', { :span_options => { :note => "Install plugins from remote repositories."} })

vendor/plugins/ansuz_plugin_installer/lib/ansuz/j_adams/ansuz_plugins_listing.rb

@@ -0,0 +1,82 @@
+require 'open-uri'
+module Ansuz
+  module JAdams
+    class AnsuzPluginsListing
+      #REPOSITORY = "http://ansuzcms.com/ansuz_plugins.xml"
+      REPOSITORY = "http://localhost:3000/ansuz_plugins.xml"
+
+      PLUGIN_HOLDING_DIR = 'ansuz_installed_plugins'
+
+      # Returns an array of plugin arrays.  A plugin array 
+      # looks like [name, repository_url]
+      def self.listing
+        ary = []
+        xml.elements.each("plugins/plugin") do |plugin|
+          name = plugin.elements["name"].text
+          repository_url = plugin.elements["repository_url"].text
+          ary << [name, repository_url, install_dir_for_repo(repository_url)]
+        end
+        ary
+      end
+
+      def self.xml_document
+        uri = URI.parse REPOSITORY
+        uri.read
+      end
+
+      def self.install_dir_for_repo repo
+        repo.split("/").last.split(".").first
+      end
+
+      def self.xml
+        REXML::Document.new xml_document
+      end
+
+      # This method will install a plugin, given a repository url
+      def self.install repository_url, name
+        `cd #{RAILS_ROOT}/#{PLUGIN_HOLDING_DIR}; git clone #{repository_url} #{name}`
+      end
+
+      # this method will copy a given plugin from PLUGIN_HOLDING_DIR to plugins
+      def self.enable name
+        FileUtils.cp_r(File.join(RAILS_ROOT, PLUGIN_HOLDING_DIR, name), File.join(RAILS_ROOT, 'vendor', 'plugins', name))
+        restart_ansuz
+      end
+
+      # This method will disable a given plugin (i.e. rm from plugins dir)
+      def self.disable name
+        FileUtils.rm_r(File.join(RAILS_ROOT, 'vendor', 'plugins', name))
+        restart_ansuz
+      end
+
+      def self.update name
+        `cd #{plugin_folder_for(name)}; git pull`
+      end
+
+      def self.delete name
+        FileUtil.rm_r plugin_folder_for(name)
+        FileUtil.rm_r installed_plugin_folder_for(name)
+      end
+
+      def self.installed?(name)
+        File.exist?(plugin_folder_for(name))
+      end
+
+      def self.enabled?(name)
+        File.exist?(installed_plugin_folder_for(name))
+      end
+
+      def self.plugin_folder_for name
+        File.join(RAILS_ROOT, PLUGIN_HOLDING_DIR, name)
+      end
+
+      def self.installed_plugin_folder_for name
+        File.join(RAILS_ROOT, 'vendor', 'plugins', name)
+      end
+
+      def self.restart_ansuz
+        FileUtils.touch(File.join(RAILS_ROOT, 'tmp', 'restart.txt'))
+      end
+    end
+  end
+end

vendor/plugins/ansuz_plugin_installer/routes.rb

@@ -0,0 +1,3 @@
+namespace :admin do |admin|
+  admin.resources :ansuz_plugin_installers, :collection => [:install, :update, :delete, :enable, :disable]
+end