8 files changed, 162 insertions, 51 deletions

diff --git a/app/assets/stylesheets/pages/commits.scss b/app/assets/stylesheets/pages/commits.scss
index c9dfcff6290..879bd287470 100644
--- a/app/assets/stylesheets/pages/commits.scss
+++ b/app/assets/stylesheets/pages/commits.scss
@@ -122,3 +122,59 @@ li.commit {
     color: $gl-gray;
   }
 }
+
+.divergence-graph {
+  padding: 12px 12px 0 0;
+  float: right;
+  
+  .graph-side {
+    position: relative;
+    width: 80px;
+    height: 22px;
+    padding: 5px 0 13px;
+    float: left;
+    
+    .bar {
+      position: absolute;
+      height: 4px;
+      background-color: #ccc;
+    }
+
+    .bar-behind {
+      right: 0;
+      border-radius: 3px 0 0 3px;
+    }
+
+    .bar-ahead {
+      left: 0;
+      border-radius: 0 3px 3px 0;
+    }
+    
+    .count {
+      padding-top: 6px;
+      padding-bottom: 0px;
+      font-size: 12px;
+      color: #333;
+      display: block;
+    }
+
+    .count-behind {
+      padding-right: 4px;
+      text-align: right;
+    }
+
+    .count-ahead {
+      padding-left: 4px;
+      text-align: left;
+    }
+  }
+
+  .graph-separator {
+    position: relative;
+    width: 1px;
+    height: 18px;
+    margin: 5px 0 0;
+    float: left;
+    background-color: #ccc;
+  }
+}
diff --git a/app/controllers/projects/branches_controller.rb b/app/controllers/projects/branches_controller.rb
index 3c2849a7601..4db3b3bf23d 100644
--- a/app/controllers/projects/branches_controller.rb
+++ b/app/controllers/projects/branches_controller.rb
@@ -9,6 +9,11 @@ class Projects::BranchesController < Projects::ApplicationController
     @sort = params[:sort] || 'name'
     @branches = @repository.branches_sorted_by(@sort)
     @branches = Kaminari.paginate_array(@branches).page(params[:page]).per(PER_PAGE)
+    
+    @max_commits = @branches.reduce(0) do |memo, branch|
+      diverging_commit_counts = repository.diverging_commit_counts(branch)
+      [memo, diverging_commit_counts[:behind], diverging_commit_counts[:ahead]].max
+    end
   end
 
   def recent
diff --git a/app/models/project.rb b/app/models/project.rb
index eadc42d1da5..b1a6cfa86af 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -775,6 +775,8 @@ class Project < ActiveRecord::Base
   end
 
   def change_head(branch)
+    # Cached divergent commit counts are based on repository head
+    repository.expire_branch_cache
     gitlab_shell.update_repository_head(self.path_with_namespace, branch)
     reload_default_branch
   end
diff --git a/app/models/project_services/asana_service.rb b/app/models/project_services/asana_service.rb
index e6e16058d41..7d367e40037 100644
--- a/app/models/project_services/asana_service.rb
+++ b/app/models/project_services/asana_service.rb
@@ -40,8 +40,8 @@ get the commit comment added to it.
 
 You can also close a task with a message containing: `fix #123456`.
 
-You can find your Api Keys here:
-http://developer.asana.com/documentation/#api_keys'
+You can create a Personal Access Token here:
+http://app.asana.com/-/account_api'
   end
 
   def to_param
@@ -53,14 +53,12 @@ http://developer.asana.com/documentation/#api_keys'
       {
         type: 'text',
         name: 'api_key',
-        placeholder: 'User API token. User must have access to task,
-all comments will be attributed to this user.'
+        placeholder: 'User Personal Access Token. User must have access to task, all comments will be attributed to this user.'
       },
       {
         type: 'text',
         name: 'restrict_to_branch',
-        placeholder: 'Comma-separated list of branches which will be
-automatically inspected. Leave blank to include all branches.'
+        placeholder: 'Comma-separated list of branches which will be automatically inspected. Leave blank to include all branches.'
       }
     ]
   end
@@ -69,58 +67,58 @@ automatically inspected. Leave blank to include all branches.'
     %w(push)
   end
 
+  def client
+    @_client ||= begin
+      Asana::Client.new do |c|
+        c.authentication :access_token, api_key
+      end
+    end
+  end
+
   def execute(data)
     return unless supported_events.include?(data[:object_kind])
 
-    Asana.configure do |client|
-      client.api_key = api_key
-    end
-
-    user = data[:user_name]
+    # check the branch restriction is poplulated and branch is not included
     branch = Gitlab::Git.ref_name(data[:ref])
-
     branch_restriction = restrict_to_branch.to_s
-
-    # check the branch restriction is poplulated and branch is not included
     if branch_restriction.length > 0 && branch_restriction.index(branch).nil?
       return
     end
 
+    user = data[:user_name]
     project_name = project.name_with_namespace
-    push_msg = user + ' pushed to branch ' + branch + ' of ' + project_name
 
     data[:commits].each do |commit|
-      check_commit(' ( ' + commit[:url] + ' ): ' + commit[:message], push_msg)
+      push_msg = "#{user} pushed to branch #{branch} of #{project_name} ( #{commit[:url]} ):"
+      check_commit(commit[:message], push_msg)
     end
   end
 
   def check_commit(message, push_msg)
-    task_list = []
-    close_list = []
-
-    message.split("\n").each do |line|
-      # look for a task ID or a full Asana url
-      task_list.concat(line.scan(/#(\d+)/))
-      task_list.concat(line.scan(/https:\/\/app\.asana\.com\/\d+\/\d+\/(\d+)/))
-      # look for a word starting with 'fix' followed by a task ID
-      close_list.concat(line.scan(/(fix\w*)\W*#(\d+)/i))
-    end
-
-    # post commit to every taskid found
-    task_list.each do |taskid|
-      task = Asana::Task.find(taskid[0])
-
-      if task
-        task.create_story(text: push_msg + ' ' + message)
-      end
-    end
-
-    # close all tasks that had 'fix(ed/es/ing) #:id' in them
-    close_list.each do |taskid|
-      task = Asana::Task.find(taskid.last)
-
-      if task
-        task.modify(completed: true)
+    # matches either:
+    # - #1234
+    # - https://app.asana.com/0/0/1234
+    # optionally preceded with:
+    # - fix/ed/es/ing
+    # - close/s/d
+    # - closing
+    issue_finder = /(fix\w*|clos[ei]\w*+)?\W*(?:https:\/\/app\.asana\.com\/\d+\/\d+\/(\d+)|#(\d+))/i
+
+    message.scan(issue_finder).each do |tuple|
+      # tuple will be
+      # [ 'fix', 'id_from_url', 'id_from_pound' ]
+      taskid = tuple[2] || tuple[1]
+
+      begin
+        task = Asana::Task.find_by_id(client, taskid)
+        task.add_comment(text: "#{push_msg} #{message}")
+
+        if tuple[0]
+          task.update(completed: true)
+        end
+      rescue => e
+        Rails.logger.error(e.message)
+        next
       end
     end
   end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index a9bf4eb4033..6ecd2d2f27e 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -175,11 +175,29 @@ class Repository
   def size
     cache.fetch(:size) { raw_repository.size }
   end
+  
+  def diverging_commit_counts(branch)
+    root_ref_hash = raw_repository.rev_parse_target(root_ref).oid
+    cache.fetch(:"diverging_commit_counts_#{branch.name}") do
+      # Rugged seems to throw a `ReferenceError` when given branch_names rather
+      # than SHA-1 hashes
+      number_commits_behind = commits_between(branch.target, root_ref_hash).size
+      number_commits_ahead = commits_between(root_ref_hash, branch.target).size
+      
+      { behind: number_commits_behind, ahead: number_commits_ahead }
+    end
+  end
 
   def cache_keys
     %i(size branch_names tag_names commit_count
        readme version contribution_guide changelog license)
   end
+  
+  def branch_cache_keys
+    branches.map do |branch|
+      :"diverging_commit_counts_#{branch.name}"
+    end
+  end
 
   def build_cache
     cache_keys.each do |key|
@@ -187,6 +205,12 @@ class Repository
         send(key)
       end
     end
+    
+    branches.each do |branch|
+      unless cache.exist?(:"diverging_commit_counts_#{branch.name}")
+        send(:diverging_commit_counts, branch)
+      end
+    end
   end
 
   def expire_tags_cache
@@ -203,6 +227,14 @@ class Repository
     cache_keys.each do |key|
       cache.expire(key)
     end
+    
+    expire_branch_cache
+  end
+  
+  def expire_branch_cache
+    branches.each do |branch|
+      cache.expire(:"diverging_commit_counts_#{branch.name}")
+    end
   end
 
   def rebuild_cache
@@ -210,6 +242,11 @@ class Repository
       cache.expire(key)
       send(key)
     end
+    
+    branches.each do |branch|
+      cache.expire(:"diverging_commit_counts_#{branch.name}")
+      diverging_commit_counts(branch)
+    end
   end
 
   def lookup_cache
diff --git a/app/models/tree.rb b/app/models/tree.rb
index 93b3246a668..e0e04d8859f 100644
--- a/app/models/tree.rb
+++ b/app/models/tree.rb
@@ -17,18 +17,16 @@ class Tree
   def readme
     return @readme if defined?(@readme)
 
-    available_readmes = blobs.select(&:readme?)
+    # Take the first previewable readme, or return nil if none is available or
+    # we can't preview any of them
+    readme_tree = blobs.find do |blob|
+      blob.readme? && (previewable?(blob.name) || plain?(blob.name))
+    end
 
-    if available_readmes.count == 0
+    if readme_tree.nil?
       return @readme = nil
     end
 
-    # Take the first previewable readme, or the first available readme, if we
-    # can't preview any of them
-    readme_tree = available_readmes.find do |readme|
-      previewable?(readme.name)
-    end || available_readmes.first
-
     readme_path = path == '/' ? readme_tree.name : File.join(path, readme_tree.name)
 
     git_repo = repository.raw_repository
diff --git a/app/views/abuse_report_mailer/notify.html.haml b/app/views/abuse_report_mailer/notify.html.haml
index 619533e09a7..2741eb44357 100644
--- a/app/views/abuse_report_mailer/notify.html.haml
+++ b/app/views/abuse_report_mailer/notify.html.haml
@@ -8,4 +8,4 @@
   = @abuse_report.message
 
 %p
-  = link_to "View details", abuse_reports_url
+  = link_to "View details", admin_abuse_reports_url
diff --git a/app/views/projects/branches/_branch.html.haml b/app/views/projects/branches/_branch.html.haml
index 5081bae6801..a234536723e 100644
--- a/app/views/projects/branches/_branch.html.haml
+++ b/app/views/projects/branches/_branch.html.haml
@@ -1,4 +1,8 @@
 - commit = @repository.commit(branch.target)
+- bar_graph_width_factor = @max_commits > 0 ? 100.0/@max_commits : 0
+- diverging_commit_counts = @repository.diverging_commit_counts(branch) 
+- number_commits_behind = diverging_commit_counts[:behind]
+- number_commits_ahead = diverging_commit_counts[:ahead]
 %li(class="js-branch-#{branch.name}")
   %div
     = link_to namespace_project_tree_path(@project.namespace, @project, branch.name) do
@@ -29,6 +33,17 @@
         = link_to namespace_project_branch_path(@project.namespace, @project, branch.name), class: 'btn btn-grouped btn-xs btn-remove remove-row has_tooltip', title: "Delete branch", method: :delete, data: { confirm: "Deleting the '#{branch.name}' branch cannot be undone. Are you sure?", container: 'body' }, remote: true do
           = icon("trash-o")
 
+    - if branch.name != @repository.root_ref
+      .divergence-graph{ title: "#{number_commits_ahead} commits ahead, #{number_commits_behind} commits behind #{@repository.root_ref}" }
+        .graph-side
+          .bar.bar-behind{ style: "width: #{number_commits_behind * bar_graph_width_factor}%" }
+          %span.count.count-behind= number_commits_behind
+        .graph-separator
+        .graph-side
+          .bar.bar-ahead{ style: "width: #{number_commits_ahead * bar_graph_width_factor}%" }
+          %span.count.count-ahead= number_commits_ahead
+
+
   - if commit
     = render 'projects/branches/commit', commit: commit, project: @project
   - else