Revert "Revert "Merge branch 'cache-improvement' into '7-13-stable'

This reverts commit ebb6393d0eda26db10da85f0a57c3d707b4de558.

13 files changed, 110 insertions, 23 deletions

diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 78f24dbd7ef..f61baf00525 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -276,4 +276,18 @@ module ProjectsHelper
   def readme_cache_key
     [@project.id, @project.commit.sha, "readme"].join('-')
   end
+
+  def round_commit_count(project)
+    count = project.commit_count
+
+    if count > 10000
+      '10000+'
+    elsif count > 5000
+      '5000+'
+    elsif count > 1000
+      '1000+'
+    else
+      count
+    end
+  end
 end
diff --git a/app/models/project.rb b/app/models/project.rb
index b161cbe86b9..ff372ea9aa5 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -683,6 +683,10 @@ class Project < ActiveRecord::Base
     update_attribute(:repository_size, repository.size)
   end
 
+  def update_commit_count
+    update_attribute(:commit_count, repository.commit_count)
+  end
+
   def forks_count
     ForkedProjectLink.where(forked_from_project_id: self.id).count
   end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 6262b5c4c92..2985619fd2e 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -94,18 +94,6 @@ class Repository
     gitlab_shell.rm_tag(path_with_namespace, tag_name)
   end
 
-  def round_commit_count
-    if commit_count > 10000
-      '10000+'
-    elsif commit_count > 5000
-      '5000+'
-    elsif commit_count > 1000
-      '1000+'
-    else
-      commit_count
-    end
-  end
-
   def branch_names
     cache.fetch(:branch_names) { raw_repository.branch_names }
   end
@@ -130,10 +118,29 @@ class Repository
     cache.fetch(:size) { raw_repository.size }
   end
 
-  def expire_cache
+  def cache_keys
     %i(size branch_names tag_names commit_count graph_log
-       readme version contribution_guide changelog license).each do |key|
+       readme version contribution_guide changelog license)
+  end
+
+  def build_cache
+    cache_keys.each do |key|
+      unless cache.exist?(key)
+        send(key)
+      end
+    end
+  end
+
+  def expire_cache
+    cache_keys.each do |key|
+      cache.expire(key)
+    end
+  end
+
+  def rebuild_cache
+    cache_keys.each do |key|
       cache.expire(key)
+      send(key)
     end
   end
 
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index 6135ae65007..3511392d1d8 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -21,7 +21,6 @@ class GitPushService
 
     project.ensure_satellite_exists
     project.repository.expire_cache
-    project.update_repository_size
 
     if push_remove_branch?(ref, newrev)
       @push_commits = []
@@ -61,6 +60,7 @@ class GitPushService
     EventCreateService.new.push(project, user, @push_data)
     project.execute_hooks(@push_data.dup, :push_hooks)
     project.execute_services(@push_data.dup, :push_hooks)
+    ProjectCacheWorker.perform_async(project.id)
   end
 
   protected
diff --git a/app/services/git_tag_push_service.rb b/app/services/git_tag_push_service.rb
index 075a6118da2..1cc42b0b0ad 100644
--- a/app/services/git_tag_push_service.rb
+++ b/app/services/git_tag_push_service.rb
@@ -2,15 +2,15 @@ class GitTagPushService
   attr_accessor :project, :user, :push_data
 
   def execute(project, user, oldrev, newrev, ref)
-    @project, @user = project, user
+    project.repository.expire_cache
 
+    @project, @user = project, user
     @push_data = build_push_data(oldrev, newrev, ref)
 
     EventCreateService.new.push(project, user, @push_data)
     project.execute_hooks(@push_data.dup, :tag_push_hooks)
     project.execute_services(@push_data.dup, :tag_push_hooks)
-
-    project.repository.expire_cache
+    ProjectCacheWorker.perform_async(project.id)
 
     true
   end
diff --git a/app/views/explore/projects/_project.html.haml b/app/views/explore/projects/_project.html.haml
index d65fb529373..d769c91545d 100644
--- a/app/views/explore/projects/_project.html.haml
+++ b/app/views/explore/projects/_project.html.haml
@@ -14,7 +14,7 @@
 
     .repo-info
       - unless project.empty_repo?
-        = link_to pluralize(project.repository.round_commit_count, 'commit'), namespace_project_commits_path(project.namespace, project, project.default_branch)
+        = link_to pluralize(round_commit_count(project), 'commit'), namespace_project_commits_path(project.namespace, project, project.default_branch)
         &middot;
         = link_to pluralize(project.repository.branch_names.count, 'branch'), namespace_project_branches_path(project.namespace, project)
         &middot;
diff --git a/app/views/projects/show.html.haml b/app/views/projects/show.html.haml
index 98d9053eb1d..b90cadfb1e2 100644
--- a/app/views/projects/show.html.haml
+++ b/app/views/projects/show.html.haml
@@ -13,7 +13,7 @@
   %ul.nav.nav-pills
     %li
       = link_to namespace_project_commits_path(@project.namespace, @project, @ref || @repository.root_ref) do
-        = pluralize(number_with_delimiter(@repository.commit_count), 'commit')
+        = pluralize(number_with_delimiter(@project.commit_count), 'commit')
     %li
       = link_to namespace_project_branches_path(@project.namespace, @project) do
         = pluralize(number_with_delimiter(@repository.branch_names.count), 'branch')
diff --git a/app/workers/project_cache_worker.rb b/app/workers/project_cache_worker.rb
new file mode 100644
index 00000000000..55cb6af232e
--- /dev/null
+++ b/app/workers/project_cache_worker.rb
@@ -0,0 +1,15 @@
+class ProjectCacheWorker
+  include Sidekiq::Worker
+
+  sidekiq_options queue: :default
+
+  def perform(project_id)
+    project = Project.find(project_id)
+    project.update_repository_size
+    project.update_commit_count
+
+    if project.repository.root_ref
+      project.repository.build_cache
+    end
+  end
+end
diff --git a/app/workers/repository_import_worker.rb b/app/workers/repository_import_worker.rb
index e6a50afedb1..94832872d13 100644
--- a/app/workers/repository_import_worker.rb
+++ b/app/workers/repository_import_worker.rb
@@ -28,7 +28,7 @@ class RepositoryImportWorker
     project.import_finish
     project.save
     project.satellite.create unless project.satellite.exists?
-    project.update_repository_size
+    ProjectCacheWorker.perform_async(project.id)
     Gitlab::BitbucketImport::KeyDeleter.new(project).execute if project.import_type == 'bitbucket'
   end
 end
diff --git a/db/fixtures/development/04_project.rb b/db/fixtures/development/04_project.rb
index 87839770924..8f71198e47f 100644
--- a/db/fixtures/development/04_project.rb
+++ b/db/fixtures/development/04_project.rb
@@ -11,9 +11,42 @@ Sidekiq::Testing.inline! do
       'https://github.com/twitter/flight.git',
       'https://github.com/twitter/typeahead.js.git',
       'https://github.com/h5bp/html5-boilerplate.git',
+      'https://github.com/google/material-design-lite.git',
+      'https://github.com/jlevy/the-art-of-command-line.git',
+      'https://github.com/FreeCodeCamp/freecodecamp.git',
+      'https://github.com/google/deepdream.git',
+      'https://github.com/jtleek/datasharing.git',
+      'https://github.com/WebAssembly/design.git',
+      'https://github.com/airbnb/javascript.git',
+      'https://github.com/tessalt/echo-chamber-js.git',
+      'https://github.com/atom/atom.git',
+      'https://github.com/ipselon/react-ui-builder.git',
+      'https://github.com/mattermost/platform.git',
+      'https://github.com/purifycss/purifycss.git',
+      'https://github.com/facebook/nuclide.git',
+      'https://github.com/wbkd/awesome-d3.git',
+      'https://github.com/kilimchoi/engineering-blogs.git',
+      'https://github.com/gilbarbara/logos.git',
+      'https://github.com/gaearon/redux.git',
+      'https://github.com/awslabs/s2n.git',
+      'https://github.com/arkency/reactjs_koans.git',
+      'https://github.com/twbs/bootstrap.git',
+      'https://github.com/chjj/ttystudio.git',
+      'https://github.com/DrBoolean/mostly-adequate-guide.git',
+      'https://github.com/octocat/Spoon-Knife.git',
+      'https://github.com/opencontainers/runc.git',
+      'https://github.com/googlesamples/android-topeka.git'
     ]
 
-    project_urls.each_with_index do |url, i|
+    # You can specify how many projects you need during seed execution
+    size = if ENV['SIZE'].present?
+             ENV['SIZE'].to_i
+           else
+             8
+           end
+
+
+    project_urls.first(size).each_with_index do |url, i|
       group_path, project_path = url.split('/')[-2..-1]
 
       group = Group.find_by(path: group_path)
diff --git a/db/migrate/20150717130904_add_commits_count_to_project.rb b/db/migrate/20150717130904_add_commits_count_to_project.rb
new file mode 100644
index 00000000000..9b46daa5933
--- /dev/null
+++ b/db/migrate/20150717130904_add_commits_count_to_project.rb
@@ -0,0 +1,5 @@
+class AddCommitsCountToProject < ActiveRecord::Migration
+  def change
+    add_column :projects, :commit_count, :integer, default: 0
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index d6c34a77ee6..a63c2d05821 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150713160110) do
+ActiveRecord::Schema.define(version: 20150717130904) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -374,6 +374,7 @@ ActiveRecord::Schema.define(version: 20150713160110) do
     t.integer  "star_count",             default: 0,        null: false
     t.string   "import_type"
     t.string   "import_source"
+    t.integer  "commit_count",           default: 0
   end
 
   add_index "projects", ["created_at", "id"], name: "index_projects_on_created_at_and_id", using: :btree
diff --git a/lib/repository_cache.rb b/lib/repository_cache.rb
index fa016a170cd..8ddc3511293 100644
--- a/lib/repository_cache.rb
+++ b/lib/repository_cache.rb
@@ -18,4 +18,12 @@ class RepositoryCache
   def fetch(key, &block)
     backend.fetch(cache_key(key), &block)
   end
+
+  def exist?(key)
+    backend.exist?(cache_key(key))
+  end
+
+  def read(key)
+    backend.read(cache_key(key))
+  end
 end