Merge branch 'web_hooks' of https://github.com/ariejan/gitlabhq into ariejan-web_hooks

Conflicts:
	app/models/project.rb
	config/routes.rb
	db/schema.rb

app/models/project.rb

@@ -14,6 +14,7 @@ class Project < ActiveRecord::Base
   has_many :users, :through => :users_projects
   has_many :notes, :dependent => :destroy
   has_many :snippets, :dependent => :destroy
+  has_many :web_hooks, :dependent => :destroy
 
   acts_as_taggable
 
@@ -82,12 +83,58 @@ class Project < ActiveRecord::Base
     :heads,
     :commits_since,
     :fresh_commits,
+    :commits_between,
     :to => :repository, :prefix => nil
 
   def to_param
     code
   end
 
+  def web_url
+    [GIT_HOST['host'], code].join("/")
+  end
+
+  def execute_web_hooks(oldrev, newrev, ref)
+    ref_parts = ref.split('/')
+
+    # Return if this is not a push to a branch (e.g. new commits)
+    return if ref_parts[1] !~ /heads/ || oldrev == "00000000000000000000000000000000"
+
+    data = web_hook_data(oldrev, newrev, ref)
+    web_hooks.each { |web_hook| web_hook.execute(data) }
+  end
+
+  def web_hook_data(oldrev, newrev, ref)
+    data = {
+      before: oldrev,
+      after: newrev,
+      ref: ref,
+      repository: {
+        name: name,
+        url: web_url,
+        description: description,
+        homepage: web_url,
+        private: private?
+      },
+      commits: []
+    }
+
+    commits_between(oldrev, newrev).each do |commit|
+      data[:commits] << {
+        id: commit.id,
+        message: commit.safe_message,
+        timestamp: commit.date.xmlschema,
+        url: "http://#{GIT_HOST['host']}/#{code}/commits/#{commit.id}",
+        author: {
+          name: commit.author_name,
+          email: commit.author_email
+        }
+      }
+    end
+
+    data
+  end
+
   def team_member_by_name_or_email(email = nil, name = nil)
     user = users.where("email like ? or name like ?", email, name).first
     users_projects.find_by_user_id(user.id) if user

app/models/repository.rb

@@ -31,6 +31,22 @@ class Repository
     project.id
   end
 
+  def write_hooks
+    %w(post-receive).each do |hook|
+      write_hook(hook, File.read(File.join(Rails.root, 'lib', "#{hook}-hook")))
+    end
+  end
+
+  def write_hook(name, content)
+    hook_file = File.join(project.path_to_repo, 'hooks', name)
+
+    File.open(hook_file, 'w') do |f|
+      f.write(content)
+    end
+
+    File.chmod(0775, hook_file)
+  end
+
   def repo
     @repo ||= Grit::Repo.new(project.path_to_repo)
   end
@@ -47,6 +63,8 @@ class Repository
     Gitlabhq::GitHost.system.new.configure do |c|
       c.update_project(path, project)
     end
+
+    write_hooks
   end
 
   def destroy_repository
@@ -115,4 +133,8 @@ class Repository
       repo.commits(ref)
     end.map{ |c| Commit.new(c) } 
   end
+
+  def commits_between(from, to)
+    repo.commits_between(from, to).map { |c| Commit.new(c) }
+  end
 end

app/models/web_hook.rb

@@ -0,0 +1,20 @@
+class WebHook < ActiveRecord::Base
+  include HTTParty
+
+  # HTTParty timeout
+  default_timeout 10
+
+  belongs_to :project
+
+  validates :url,
+            presence: true,
+            format: {
+              with: URI::regexp(%w(http https)),
+              message: "should be a valid url" }
+
+  def execute(data)
+    WebHook.post(url, body: data.to_json)
+  rescue
+    # There was a problem calling this web hook, let's forget about it.
+  end
+end

app/workers/post_receive.rb

@@ -0,0 +1,8 @@
+class PostReceive
+  def self.perform(reponame, oldrev, newrev, ref)
+    project = Project.find_by_path(reponame)
+    return false if project.nil?
+
+    project.execute_web_hooks(oldrev, newrev, ref)
+  end
+end