14 files changed, 214 insertions, 129 deletions

diff --git a/app/models/ability.rb b/app/models/ability.rb
index a020b24a550..77c121ca5e8 100644
--- a/app/models/ability.rb
+++ b/app/models/ability.rb
@@ -135,6 +135,8 @@ class Ability
 
     def project_report_rules
       project_guest_rules + [
+        :create_commit_status,
+        :read_commit_statuses,
         :download_code,
         :fork_project,
         :create_project_snippet,
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 5d17f4418ed..f8c731a7bf7 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -24,32 +24,19 @@
 #
 
 module Ci
-  class Build < ActiveRecord::Base
-    extend Ci::Model
-
+  class Build < CommitStatus
     LAZY_ATTRIBUTES = ['trace']
 
-    belongs_to :commit, class_name: 'Ci::Commit'
     belongs_to :runner, class_name: 'Ci::Runner'
     belongs_to :trigger_request, class_name: 'Ci::TriggerRequest'
-    belongs_to :user
 
     serialize :options
 
-    validates :commit, presence: true
-    validates :status, presence: true
     validates :coverage, numericality: true, allow_blank: true
     validates_presence_of :ref
 
-    scope :running, ->() { where(status: "running") }
-    scope :pending, ->() { where(status: "pending") }
-    scope :success, ->() { where(status: "success") }
-    scope :failed, ->() { where(status: "failed")  }
     scope :unstarted, ->() { where(runner_id: nil) }
-    scope :running_or_pending, ->() { where(status:[:running, :pending]) }
-    scope :latest, ->() { where(id: unscope(:select).select('max(id)').group(:name, :ref)).order(stage_idx: :asc) }
     scope :ignore_failures, ->() { where(allow_failure: false) }
-    scope :for_ref, ->(ref) { where(ref: ref) }
     scope :similar, ->(build) { where(ref: build.ref, tag: build.tag, trigger_request_id: build.trigger_request_id) }
 
     acts_as_taggable
@@ -74,13 +61,14 @@ module Ci
 
       def create_from(build)
         new_build = build.dup
-        new_build.status = :pending
+        new_build.status = 'pending'
         new_build.runner_id = nil
+        new_build.trigger_request_id = nil
         new_build.save
       end
 
       def retry(build)
-        new_build = Ci::Build.new(status: :pending)
+        new_build = Ci::Build.new(status: 'pending')
         new_build.ref = build.ref
         new_build.tag = build.tag
         new_build.options = build.options
@@ -98,28 +86,7 @@ module Ci
     end
 
     state_machine :status, initial: :pending do
-      event :run do
-        transition pending: :running
-      end
-
-      event :drop do
-        transition running: :failed
-      end
-
-      event :success do
-        transition running: :success
-      end
-
-      event :cancel do
-        transition [:pending, :running] => :canceled
-      end
-
-      after_transition pending: :running do |build, transition|
-        build.update_attributes started_at: Time.now
-      end
-
       after_transition any => [:success, :failed, :canceled] do |build, transition|
-        build.update_attributes finished_at: Time.now
         project = build.project
 
         if project.web_hooks?
@@ -136,19 +103,10 @@ module Ci
           build.update_coverage
         end
       end
-
-      state :pending, value: 'pending'
-      state :running, value: 'running'
-      state :failed, value: 'failed'
-      state :success, value: 'success'
-      state :canceled, value: 'canceled'
     end
 
-    delegate :sha, :short_sha, :project, :gl_project,
-      to: :commit, prefix: false
-
-    def before_sha
-      Gitlab::Git::BLANK_SHA
+    def ignored?
+      failed? && allow_failure?
     end
 
     def trace_html
@@ -156,22 +114,6 @@ module Ci
       html || ''
     end
 
-    def started?
-      !pending? && !canceled? && started_at
-    end
-
-    def active?
-      running? || pending?
-    end
-
-    def complete?
-      canceled? || success? || failed?
-    end
-
-    def ignored?
-      failed? && allow_failure?
-    end
-
     def timeout
       project.timeout
     end
@@ -180,14 +122,6 @@ module Ci
       yaml_variables + project_variables + trigger_variables
     end
 
-    def duration
-      if started_at && finished_at
-        finished_at - started_at
-      elsif started_at
-        Time.now - started_at
-      end
-    end
-
     def project
       commit.project
     end
@@ -278,6 +212,25 @@ module Ci
       "#{dir_to_trace}/#{id}.log"
     end
 
+    def target_url
+      Gitlab::Application.routes.url_helpers.
+        namespace_project_build_url(gl_project.namespace, gl_project, self)
+    end
+
+    def cancel_url
+      if active?
+        Gitlab::Application.routes.url_helpers.
+          cancel_namespace_project_build_path(gl_project.namespace, gl_project, self, return_to: request.original_url)
+      end
+    end
+
+    def retry_url
+      if commands.present?
+        Gitlab::Application.routes.url_helpers.
+          cancel_namespace_project_build_path(gl_project.namespace, gl_project, self, return_to: request.original_url)
+      end
+    end
+
     private
 
     def yaml_variables
diff --git a/app/models/ci/commit.rb b/app/models/ci/commit.rb
index fde754a92a1..68864edfbbf 100644
--- a/app/models/ci/commit.rb
+++ b/app/models/ci/commit.rb
@@ -20,7 +20,8 @@ module Ci
     extend Ci::Model
 
     belongs_to :gl_project, class_name: '::Project', foreign_key: :gl_project_id
-    has_many :builds, dependent: :destroy, class_name: 'Ci::Build'
+    has_many :statuses, dependent: :destroy, class_name: 'CommitStatus'
+    has_many :builds, class_name: 'Ci::Build'
     has_many :trigger_requests, dependent: :destroy, class_name: 'Ci::TriggerRequest'
 
     validates_presence_of :sha
@@ -47,7 +48,7 @@ module Ci
     end
 
     def retry
-      builds_without_retry.each do |build|
+      latest_builds.each do |build|
         Ci::Build.retry(build)
       end
     end
@@ -81,12 +82,11 @@ module Ci
     end
 
     def stage
-      running_or_pending = builds_without_retry.running_or_pending
-      running_or_pending.limit(1).pluck(:stage).first
+      running_or_pending = statuses.latest.running_or_pending.ordered
+      running_or_pending.first.try(:stage)
     end
 
     def create_builds(ref, tag, user, trigger_request = nil)
-      return if skip_ci? && trigger_request.blank?
       return unless config_processor
       config_processor.stages.any? do |stage|
         CreateBuildsService.new.execute(self, stage, ref, tag, user, trigger_request).present?
@@ -94,7 +94,6 @@ module Ci
     end
 
     def create_next_builds(ref, tag, user, trigger_request)
-      return if skip_ci? && trigger_request.blank?
       return unless config_processor
 
       stages = builds.where(ref: ref, tag: tag, trigger_request: trigger_request).group_by(&:stage)
@@ -107,61 +106,60 @@ module Ci
     end
 
     def refs
-      builds.group(:ref).pluck(:ref)
+      statuses.order(:ref).pluck(:ref).uniq
     end
 
-    def last_ref
-      builds.latest.first.try(:ref)
+    def latest_statuses
+      @latest_statuses ||= statuses.latest.to_a
     end
 
-    def builds_without_retry
-      builds.latest
+    def latest_builds
+      @latest_builds ||= builds.latest.to_a
     end
 
-    def builds_without_retry_for_ref(ref)
-      builds.for_ref(ref).latest
+    def latest_builds_for_ref(ref)
+      latest_builds.select { |build| build.ref == ref }
     end
 
-    def retried_builds
-      @retried_builds ||= (builds.order(id: :desc) - builds_without_retry)
+    def retried
+      @retried ||= (statuses.order(id: :desc) - statuses.latest)
     end
 
     def status
-      if skip_ci?
-        return 'skipped'
-      elsif yaml_errors.present?
+      if yaml_errors.present?
         return 'failed'
-      elsif builds.none?
-        return 'skipped'
-      elsif success?
-        'success'
-      elsif pending?
-        'pending'
-      elsif running?
-        'running'
-      elsif canceled?
-        'canceled'
-      else
-        'failed'
+      end
+
+      @status ||= begin
+        latest = latest_statuses
+        latest.reject! { |status| status.try(&:allow_failure?) }
+
+        if latest.none?
+          'skipped'
+        elsif latest.all?(&:success?)
+          'success'
+        elsif latest.all?(&:pending?)
+          'pending'
+        elsif latest.any?(&:running?) || latest.any?(&:pending?)
+          'running'
+        elsif latest.all?(&:canceled?)
+          'canceled'
+        else
+          'failed'
+        end
       end
     end
 
     def pending?
-      builds_without_retry.all? do |build|
-        build.pending?
-      end
+      status == 'pending'
     end
 
     def running?
-      builds_without_retry.any? do |build|
-        build.running? || build.pending?
-      end
+      status == 'running'
     end
 
     def success?
-      builds_without_retry.all? do |build|
-        build.success? || build.ignored?
-      end
+      status == 'success'
     end
 
     def failed?
@@ -169,26 +167,21 @@ module Ci
     end
 
     def canceled?
-      builds_without_retry.all? do |build|
-        build.canceled?
-      end
+      status == 'canceled'
     end
 
     def duration
-      @duration ||= builds_without_retry.select(&:duration).sum(&:duration).to_i
-    end
-
-    def duration_for_ref(ref)
-      builds_without_retry_for_ref(ref).select(&:duration).sum(&:duration).to_i
+      duration_array = latest_statuses.map(&:duration).compact
+      duration_array.reduce(:+).to_i
     end
 
     def finished_at
-      @finished_at ||= builds.order('finished_at DESC').first.try(:finished_at)
+      @finished_at ||= statuses.order('finished_at DESC').first.try(:finished_at)
     end
 
     def coverage
       if project.coverage_enabled?
-        coverage_array = builds_without_retry.map(&:coverage).compact
+        coverage_array = latest_builds.map(&:coverage).compact
         if coverage_array.size >= 1
           '%.2f' % (coverage_array.reduce(:+) / coverage_array.size)
         end
@@ -196,7 +189,7 @@ module Ci
     end
 
     def matrix_for_ref?(ref)
-      builds_without_retry_for_ref(ref).pluck(:id).size > 1
+      latest_builds_for_ref(ref).size > 1
     end
 
     def config_processor
@@ -217,7 +210,6 @@ module Ci
     end
 
     def skip_ci?
-      return false if builds.any?
       git_commit_message =~ /(\[ci skip\])/ if git_commit_message
     end
 
diff --git a/app/models/commit.rb b/app/models/commit.rb
index aff329d71fa..d5c50013525 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -184,4 +184,12 @@ class Commit
   def parents
     @parents ||= Commit.decorate(super, project)
   end
+
+  def ci_commit
+    project.ci_commit(sha)
+  end
+
+  def status
+    ci_commit.try(:status) || :not_found
+  end
 end
diff --git a/app/models/commit_status.rb b/app/models/commit_status.rb
new file mode 100644
index 00000000000..b4d91b1b0c3
--- /dev/null
+++ b/app/models/commit_status.rb
@@ -0,0 +1,91 @@
+class CommitStatus < ActiveRecord::Base
+  self.table_name = 'ci_builds'
+
+  belongs_to :commit, class_name: 'Ci::Commit'
+  belongs_to :user
+
+  validates :commit, presence: true
+  validates :status, inclusion: { in: %w(pending running failed success canceled) }
+
+  validates_presence_of :name
+
+  alias_attribute :author, :user
+
+  scope :running, -> { where(status: 'running') }
+  scope :pending, -> { where(status: 'pending') }
+  scope :success, -> { where(status: 'success') }
+  scope :failed, -> { where(status: 'failed')  }
+  scope :running_or_pending, -> { where(status:[:running, :pending]) }
+  scope :latest, -> { where(id: unscope(:select).select('max(id)').group(:name, :ref)) }
+  scope :ordered, -> { order(:ref, :stage_idx, :name) }
+  scope :for_ref, ->(ref) { where(ref: ref) }
+  scope :running_or_pending, -> { where(status: [:running, :pending]) }
+
+  state_machine :status, initial: :pending do
+    event :run do
+      transition pending: :running
+    end
+
+    event :drop do
+      transition running: :failed
+    end
+
+    event :success do
+      transition [:pending, :running] => :success
+    end
+
+    event :cancel do
+      transition [:pending, :running] => :canceled
+    end
+
+    after_transition pending: :running do |build, transition|
+      build.update_attributes started_at: Time.now
+    end
+
+    after_transition any => [:success, :failed, :canceled] do |build, transition|
+      build.update_attributes finished_at: Time.now
+    end
+
+    state :pending, value: 'pending'
+    state :running, value: 'running'
+    state :failed, value: 'failed'
+    state :success, value: 'success'
+    state :canceled, value: 'canceled'
+  end
+
+  delegate :sha, :short_sha, :gl_project,
+           to: :commit, prefix: false
+
+  # TODO: this should be removed with all references
+  def before_sha
+    Gitlab::Git::BLANK_SHA
+  end
+
+  def started?
+    !pending? && !canceled? && started_at
+  end
+
+  def active?
+    running? || pending?
+  end
+
+  def complete?
+    canceled? || success? || failed?
+  end
+
+  def duration
+    if started_at && finished_at
+      finished_at - started_at
+    elsif started_at
+      Time.now - started_at
+    end
+  end
+
+  def cancel_url
+    nil
+  end
+
+  def retry_url
+    nil
+  end
+end
diff --git a/app/models/generic_commit_status.rb b/app/models/generic_commit_status.rb
new file mode 100644
index 00000000000..fa54e3540d0
--- /dev/null
+++ b/app/models/generic_commit_status.rb
@@ -0,0 +1,15 @@
+class GenericCommitStatus < CommitStatus
+  before_validation :set_default_values
+
+  # GitHub compatible API
+  alias_attribute :context, :name
+
+  def set_default_values
+    self.context ||= 'default'
+    self.stage ||= 'external'
+  end
+
+  def tags
+    [:external]
+  end
+end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index eb468c6cd53..c83b15c7d39 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -227,7 +227,7 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def work_in_progress?
-    title =~ /\A\[?WIP\]?:? /i
+    !!(title =~ /\A\[?WIP\]?:? /i)
   end
 
   def mergeable?
@@ -275,7 +275,8 @@ class MergeRequest < ActiveRecord::Base
     attrs = {
       source: source_project.hook_attrs,
       target: target_project.hook_attrs,
-      last_commit: nil
+      last_commit: nil,
+      work_in_progress: work_in_progress?
     }
 
     unless last_commit.nil?
diff --git a/app/models/project_services/bamboo_service.rb b/app/models/project_services/bamboo_service.rb
index d8aedbd2ab4..5f5255ab487 100644
--- a/app/models/project_services/bamboo_service.rb
+++ b/app/models/project_services/bamboo_service.rb
@@ -40,12 +40,19 @@ class BambooService < CiService
   attr_accessor :response
 
   after_save :compose_service_hook, if: :activated?
+  before_update :reset_password
 
   def compose_service_hook
     hook = service_hook || build_service_hook
     hook.save
   end
 
+  def reset_password
+    if prop_updated?(:bamboo_url)
+      self.password = nil
+    end
+  end
+
   def title
     'Atlassian Bamboo CI'
   end
diff --git a/app/models/project_services/ci/hip_chat_service.rb b/app/models/project_services/ci/hip_chat_service.rb
index 0e6e97394bc..f17993d9f3b 100644
--- a/app/models/project_services/ci/hip_chat_service.rb
+++ b/app/models/project_services/ci/hip_chat_service.rb
@@ -49,7 +49,7 @@ module Ci
 
       commit = build.commit
       return unless commit
-      return unless commit.builds_without_retry.include? build
+      return unless commit.latest_builds.include? build
 
       case commit.status.to_sym
       when :failed
diff --git a/app/models/project_services/ci/mail_service.rb b/app/models/project_services/ci/mail_service.rb
index 11a2743f969..fd193301001 100644
--- a/app/models/project_services/ci/mail_service.rb
+++ b/app/models/project_services/ci/mail_service.rb
@@ -48,7 +48,7 @@ module Ci
       # it doesn't make sense to send emails for retried builds
       commit = build.commit
       return unless commit
-      return unless commit.builds_without_retry.include?(build)
+      return unless commit.latest_builds.include?(build)
 
       case build.status.to_sym
       when :failed
diff --git a/app/models/project_services/ci/slack_message.rb b/app/models/project_services/ci/slack_message.rb
index 5ac8907ecd0..dc050a3fc59 100644
--- a/app/models/project_services/ci/slack_message.rb
+++ b/app/models/project_services/ci/slack_message.rb
@@ -23,7 +23,7 @@ module Ci
     def attachments
       fields = []
 
-      commit.builds_without_retry.each do |build|
+      commit.latest_builds.each do |build|
         next if build.allow_failure?
         next unless build.failed?
         fields << {
diff --git a/app/models/project_services/ci/slack_service.rb b/app/models/project_services/ci/slack_service.rb
index 76db573dc17..ee8e4988826 100644
--- a/app/models/project_services/ci/slack_service.rb
+++ b/app/models/project_services/ci/slack_service.rb
@@ -48,7 +48,7 @@ module Ci
 
       commit = build.commit
       return unless commit
-      return unless commit.builds_without_retry.include?(build)
+      return unless commit.latest_builds.include?(build)
 
       case commit.status.to_sym
       when :failed
diff --git a/app/models/project_services/teamcity_service.rb b/app/models/project_services/teamcity_service.rb
index 3c002a1634b..fb11cad352e 100644
--- a/app/models/project_services/teamcity_service.rb
+++ b/app/models/project_services/teamcity_service.rb
@@ -37,12 +37,19 @@ class TeamcityService < CiService
   attr_accessor :response
 
   after_save :compose_service_hook, if: :activated?
+  before_update :reset_password
 
   def compose_service_hook
     hook = service_hook || build_service_hook
     hook.save
   end
 
+  def reset_password
+    if prop_updated?(:teamcity_url)
+      self.password = nil
+    end
+  end
+
   def title
     'JetBrains TeamCity CI'
   end
diff --git a/app/models/service.rb b/app/models/service.rb
index 60fcc9d2857..7e845d565b1 100644
--- a/app/models/service.rb
+++ b/app/models/service.rb
@@ -117,6 +117,15 @@ class Service < ActiveRecord::Base
     end
   end
 
+  # ActiveRecord does not provide a mechanism to track changes in serialized keys.
+  # This is why we need to perform extra query to do it mannually.
+  def prop_updated?(prop_name)
+    relation_name = self.type.underscore
+    previous_value = project.send(relation_name).send(prop_name)
+    return false if previous_value.nil?
+    previous_value != send(prop_name)
+  end
+
   def async_execute(data)
     return unless supported_events.include?(data[:object_kind])