Merge branch '2-step-mr' into 'master'

2 step merge request process

15 files changed, 229 insertions, 76 deletions

diff --git a/app/assets/javascripts/project_users_select.js.coffee b/app/assets/javascripts/project_users_select.js.coffee
index 03fad41c490..b0e39610feb 100644
--- a/app/assets/javascripts/project_users_select.js.coffee
+++ b/app/assets/javascripts/project_users_select.js.coffee
@@ -1,7 +1,7 @@
 @projectUsersSelect =
   init: ->
     $('.ajax-project-users-select').each (i, select) ->
-      project_id = $('body').data('project-id')
+      project_id = $(select).data('project-id') || $('body').data('project-id')
 
       $(select).select2
         placeholder: $(select).data('placeholder') || "Search for a user"
diff --git a/app/assets/stylesheets/sections/merge_requests.scss b/app/assets/stylesheets/sections/merge_requests.scss
index 790496a1a5a..5dcfc449b42 100644
--- a/app/assets/stylesheets/sections/merge_requests.scss
+++ b/app/assets/stylesheets/sections/merge_requests.scss
@@ -31,7 +31,6 @@
 
 .mr_source_commit,
 .mr_target_commit {
-  margin-top: 10px;
   .commit {
     margin: 0;
     padding: 2px 0;
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 745da9c49e4..d8551db7b01 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -62,11 +62,27 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @merge_request.source_project = @project unless @merge_request.source_project
     @merge_request.target_project ||= (@project.forked_from_project || @project)
     @target_branches = @merge_request.target_project.nil? ? [] : @merge_request.target_project.repository.branch_names
-
     @merge_request.target_branch ||= @merge_request.target_project.default_branch
-
     @source_project = @merge_request.source_project
-    @merge_request
+
+    if @merge_request.target_branch && @merge_request.source_branch
+      compare_action = Gitlab::Satellite::CompareAction.new(
+        current_user,
+        @merge_request.target_project,
+        @merge_request.target_branch,
+        @merge_request.source_project,
+        @merge_request.source_branch
+      )
+
+      @commits = compare_action.commits
+      @commits.map! { |commit| Commit.new(commit) }
+      @commit = @commits.first
+
+      @diffs = compare_action.diffs
+      @merge_request.title = @merge_request.source_branch.titleize.humanize
+      @target_project = @merge_request.target_project
+      @target_repo = @target_project.repository
+    end
   end
 
   def edit
@@ -80,7 +96,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @merge_request = MergeRequests::CreateService.new(project, current_user, params[:merge_request]).execute
 
     if @merge_request.valid?
-      redirect_to [@merge_request.target_project, @merge_request], notice: 'Merge request was successfully created.'
+      redirect_to project_merge_request_path(@merge_request.target_project, @merge_request), notice: 'Merge request was successfully created.'
     else
       @source_project = @merge_request.source_project
       @target_project = @merge_request.target_project
diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 95f0eff58b1..7c58908165c 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -82,7 +82,7 @@ module IssuesHelper
   end
 
   def milestone_options object
-    options_from_collection_for_select(@project.milestones.active, 'id', 'title', object.milestone_id)
+    options_from_collection_for_select(object.project.milestones.active, 'id', 'title', object.milestone_id)
   end
 
   def issue_box_class(item)
diff --git a/app/helpers/selects_helper.rb b/app/helpers/selects_helper.rb
index a1fe4488ae9..ab24367c455 100644
--- a/app/helpers/selects_helper.rb
+++ b/app/helpers/selects_helper.rb
@@ -14,7 +14,7 @@ module SelectsHelper
     css_class << (opts[:class] || '')
     value = opts[:selected] || ''
     placeholder = opts[:placeholder] || 'Select user'
-
-    hidden_field_tag(id, value, class: css_class, 'data-placeholder' => placeholder)
+    project_id = opts[:project_id] || @project.id
+    hidden_field_tag(id, value, class: css_class, 'data-placeholder' => placeholder, 'data-project-id' => project_id)
   end
 end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 8c885b70a48..134a8c8dd40 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -253,6 +253,14 @@ class MergeRequest < ActiveRecord::Base
     end
   end
 
+  def target_project_namespace
+    if target_project && target_project.namespace
+      target_project.namespace.path
+    else
+      "(removed)"
+    end
+  end
+
   def source_branch_exists?
     return false unless self.source_project
 
diff --git a/app/views/projects/merge_requests/_form.html.haml b/app/views/projects/merge_requests/_form.html.haml
index 0fe2d1d9801..ddff3dbead8 100644
--- a/app/views/projects/merge_requests/_form.html.haml
+++ b/app/views/projects/merge_requests/_form.html.haml
@@ -14,33 +14,6 @@
           - @merge_request.errors.full_messages.each do |msg|
             %div= msg
 
-  .merge-request-branches
-    .form-group
-      = label_tag nil, class: 'control-label' do
-        From
-      .col-sm-10
-        .clearfix
-          .pull-left
-            = f.select(:source_project_id, [[@merge_request.source_project_path,@merge_request.source_project.id]] , {}, { class: 'source_project select2 span3', disabled: @merge_request.persisted? })
-          .pull-left
-            &nbsp;
-            = f.select(:source_branch, @merge_request.source_branches, { include_blank: "Select branch" }, {class: 'source_branch select2 span2'})
-        .mr_source_commit
-    %br
-    .form-group
-      = label_tag nil, class: 'control-label' do
-        To
-      .col-sm-10
-        .clearfix
-          .pull-left
-            - projects =  @project.forked_from_project.nil? ? [@project] : [@project, @project.forked_from_project]
-            = f.select(:target_project_id, options_from_collection_for_select(projects, 'id', 'path_with_namespace', f.object.target_project_id), {}, { class: 'target_project select2 span3', disabled: @merge_request.persisted? })
-          .pull-left
-            &nbsp;
-            = f.select(:target_branch, @merge_request.target_branches, { include_blank: "Select branch" }, {class: 'target_branch select2 span2'})
-        .mr_target_commit
-
-  %hr
   .merge-request-form-info
     .form-group
       = f.label :title, class: 'control-label' do
@@ -51,6 +24,23 @@
       .col-sm-10
         = f.text_area :description, class: "form-control js-gfm-input", rows: 14
         %p.hint Description is parsed with #{link_to "GitLab Flavored Markdown", help_markdown_path, target: '_blank'}.
+    %hr
+    .form-group
+      .issue-assignee
+        = f.label :assignee_id, class: 'control-label' do
+          %i.icon-user
+          Assign to
+        .col-sm-10
+          = project_users_select_tag('merge_request[assignee_id]', placeholder: 'Select a user', class: 'custom-form-control', selected: @merge_request.assignee_id)
+          &nbsp;
+          = link_to 'Assign to me', '#', class: 'btn btn-small assign-to-me-link'
+    .form-group
+      .issue-milestone
+        = f.label :milestone_id, class: 'control-label' do
+          %i.icon-time
+          Milestone
+        .col-sm-10= f.select(:milestone_id, milestone_options(@merge_request), { include_blank: "Select milestone" }, {class: 'select2'})
+
 
   .form-actions
     - if @merge_request.new_record?
@@ -66,20 +56,7 @@
 
 :javascript
   disableButtonIfEmptyField("#merge_request_title", ".btn-save");
-
-  var source_branch = $("#merge_request_source_branch")
-    , target_branch = $("#merge_request_target_branch")
-    , target_project = $("#merge_request_target_project_id");
-
-  $.get("#{branch_from_project_merge_requests_path(@source_project)}", {ref: source_branch.val() });
-  $.get("#{branch_to_project_merge_requests_path(@source_project)}", {target_project_id: target_project.val(),ref: target_branch.val() });
-
-  target_project.on("change", function() {
-    $.get("#{update_branches_project_merge_requests_path(@source_project)}", {target_project_id:  $(this).val() });
-  });
-  source_branch.on("change", function() {
-    $.get("#{branch_from_project_merge_requests_path(@source_project)}", {ref: $(this).val() });
-  });
-  target_branch.on("change", function() {
-    $.get("#{branch_to_project_merge_requests_path(@source_project)}", {target_project_id: target_project.val(),ref: $(this).val() });
+  $('.assign-to-me-link').on('click', function(e){
+    $('#merge_request_assignee_id').val("#{current_user.id}").trigger("change");
+    e.preventDefault();
   });
diff --git a/app/views/projects/merge_requests/_new_compare.html.haml b/app/views/projects/merge_requests/_new_compare.html.haml
new file mode 100644
index 00000000000..a8b774a3cd1
--- /dev/null
+++ b/app/views/projects/merge_requests/_new_compare.html.haml
@@ -0,0 +1,84 @@
+%h3.page-title Compare branches for new Merge Request
+%hr
+
+= form_for [@project, @merge_request], url: new_project_merge_request_path(@project), method: :get, html: { class: "merge-request-form form-inline" } do |f|
+  .hide.alert.alert-danger.mr-compare-errors
+  .merge-request-branches.row
+    .col-md-6
+      .panel.panel-default
+        .panel-heading
+          %strong Source branch
+        .panel-body
+          = f.select(:source_project_id, [[@merge_request.source_project_path,@merge_request.source_project.id]] , {}, { class: 'source_project select2 span3', disabled: @merge_request.persisted? })
+          &nbsp;
+          = f.select(:source_branch, @merge_request.source_branches, { include_blank: "Select branch" }, {class: 'source_branch select2 span2'})
+        .panel-footer
+          .mr_source_commit
+
+    .col-md-6
+      .panel.panel-default
+        .panel-heading
+          %strong Target branch
+        .panel-body
+          - projects =  @project.forked_from_project.nil? ? [@project] : [@project, @project.forked_from_project]
+          = f.select(:target_project_id, options_from_collection_for_select(projects, 'id', 'path_with_namespace', f.object.target_project_id), {}, { class: 'target_project select2 span3', disabled: @merge_request.persisted? })
+          &nbsp;
+          = f.select(:target_branch, @merge_request.target_branches, { include_blank: "Select branch" }, {class: 'target_branch select2 span2'})
+        .panel-footer
+          .mr_target_commit
+
+  -if @merge_request.errors.any?
+    .alert.alert-danger
+      - @merge_request.errors.full_messages.each do |msg|
+        %div= msg
+
+  - if @merge_request.source_branch.present? && @merge_request.target_branch.present?
+    .light-well
+      %center
+        %h4
+          There isn't anything to merge.
+        %p.slead
+          - if @merge_request.source_branch == @merge_request.target_branch
+            You'll need to use different branch names to get a valid comparison.
+          - else
+            %span.label-branch #{@merge_request.source_branch}
+            and
+            %span.label-branch #{@merge_request.target_branch}
+            are the same.
+
+
+  %hr
+  = f.submit 'Compare branches', class: "btn btn-primary mr-compare-btn"
+
+:javascript
+  var source_branch = $("#merge_request_source_branch")
+    , target_branch = $("#merge_request_target_branch")
+    , target_project = $("#merge_request_target_project_id");
+
+  $.get("#{branch_from_project_merge_requests_path(@source_project)}", {ref: source_branch.val() });
+  $.get("#{branch_to_project_merge_requests_path(@source_project)}", {target_project_id: target_project.val(),ref: target_branch.val() });
+
+  target_project.on("change", function() {
+    $.get("#{update_branches_project_merge_requests_path(@source_project)}", {target_project_id:  $(this).val() });
+  });
+  source_branch.on("change", function() {
+    $.get("#{branch_from_project_merge_requests_path(@source_project)}", {ref: $(this).val() });
+    $(".mr-compare-errors").fadeOut();
+    $(".mr-compare-btn").enable();
+  });
+  target_branch.on("change", function() {
+    $.get("#{branch_to_project_merge_requests_path(@source_project)}", {target_project_id: target_project.val(),ref: $(this).val() });
+    $(".mr-compare-errors").fadeOut();
+    $(".mr-compare-btn").enable();
+  });
+
+
+:coffeescript
+
+  $(".merge-request-form").on 'submit', ->
+    if $("#merge_request_source_branch").val() is "" or $('#merge_request_target_branch').val() is ""
+      $(".mr-compare-errors").html("You must select source and target branch to proceed")
+      $(".mr-compare-errors").fadeIn()
+      event.preventDefault()
+      return
+
diff --git a/app/views/projects/merge_requests/_new_submit.html.haml b/app/views/projects/merge_requests/_new_submit.html.haml
new file mode 100644
index 00000000000..b5479be708b
--- /dev/null
+++ b/app/views/projects/merge_requests/_new_submit.html.haml
@@ -0,0 +1,82 @@
+%h3.page-title
+  New merge request
+%p.slead
+  From
+  %strong.monospace
+    #{@merge_request.source_project_namespace}:#{@merge_request.source_branch}
+  into
+  %strong.monospace
+    #{@merge_request.target_project_namespace}:#{@merge_request.target_branch}
+
+  %span.pull-right
+    = link_to 'Change branches', new_project_merge_request_path(@project)
+
+= form_for [@project, @merge_request], html: { class: "merge-request-form" } do |f|
+  .panel.panel-default
+
+    .panel-body
+      .form-group
+        .light
+          = f.label :title do
+            = "Title *"
+        = f.text_field :title, class: "form-control input-lg js-gfm-input", maxlength: 255, rows: 5, required: true
+      .form-group
+        .light
+          = f.label :description, "Description"
+        = f.text_area :description, class: "form-control js-gfm-input", rows: 10
+        %p.hint Description is parsed with #{link_to "GitLab Flavored Markdown", help_markdown_path, target: '_blank'}.
+      .form-group
+        .issue-assignee
+          = f.label :assignee_id do
+            %i.icon-user
+            Assign to
+          %div
+            = project_users_select_tag('merge_request[assignee_id]', placeholder: 'Select a user', class: 'custom-form-control', selected: @merge_request.assignee_id, project_id: @merge_request.target_project_id)
+            &nbsp;
+            = link_to 'Assign to me', '#', class: 'btn btn-small assign-to-me-link'
+      .form-group
+        .issue-milestone
+          = f.label :milestone_id do
+            %i.icon-time
+            Milestone
+          %div= f.select(:milestone_id, milestone_options(@merge_request), { include_blank: "Select milestone" }, {class: 'select2'})
+    .panel-footer
+      - if @target_repo.contribution_guide
+        - contribution_guide_url = project_blob_path(@target_project, tree_join(@target_repo.root_ref, @target_repo.contribution_guide.name))
+        %p
+          Please review the
+          %strong #{link_to "guidelines for contribution", contribution_guide_url}
+          to this repository.
+      = f.hidden_field :source_project_id
+      = f.hidden_field :target_project_id
+      = f.hidden_field :target_branch
+      = f.hidden_field :source_branch
+      = f.submit 'Submit merge request', class: "btn btn-create"
+
+.mr-compare
+  %div.ui-box
+    .title
+      Commits (#{@commits.count})
+    - if @commits.size > MergeRequestDiff::COMMITS_SAFE_SIZE
+      %ul.well-list
+        - Commit.decorate(@commits.first(MergeRequestDiff::COMMITS_SAFE_SIZE)).each do |commit|
+          = render "projects/commits/inline_commit", commit: commit, project: @project
+        %li.warning-row.unstyled
+          other #{@commits.size - MergeRequestDiff::COMMITS_SAFE_SIZE} commits hidden to prevent performance issues.
+    - else
+      %ul.well-list= render Commit.decorate(@commits), project: @project
+
+  %h4 Changes
+  - if @diffs.present?
+    = render "projects/commits/diffs", diffs: @diffs, project: @project
+  - elsif @commits.size > MergeRequestDiff::COMMITS_SAFE_SIZE
+    .bs-callout.bs-callout-danger
+      %h4 This comparison includes more than #{MergeRequestDiff::COMMITS_SAFE_SIZE} commits.
+      %p To preserve performance the line changes are not shown.
+
+
+:javascript
+  $('.assign-to-me-link').on('click', function(e){
+    $('#merge_request_assignee_id').val("#{current_user.id}").trigger("change");
+    e.preventDefault();
+  });
diff --git a/app/views/projects/merge_requests/branch_from.js.haml b/app/views/projects/merge_requests/branch_from.js.haml
index 693c2057a0f..8372afa61b5 100644
--- a/app/views/projects/merge_requests/branch_from.js.haml
+++ b/app/views/projects/merge_requests/branch_from.js.haml
@@ -1,7 +1,2 @@
 :plain
   $(".mr_source_commit").html("#{commit_to_html(@commit, @source_project, false)}");
-  var mrTitle = $('#merge_request_title');
-
-  if(mrTitle.val().length == 0) {
-    mrTitle.val("#{params[:ref].titleize.humanize}");
-  }
diff --git a/app/views/projects/merge_requests/new.html.haml b/app/views/projects/merge_requests/new.html.haml
index 8ee0e1a8d46..c24e5916721 100644
--- a/app/views/projects/merge_requests/new.html.haml
+++ b/app/views/projects/merge_requests/new.html.haml
@@ -1,3 +1,4 @@
-%h3.page-title New Merge Request
-%hr
-= render 'form'
+- if @commits.present?
+  = render 'new_submit'
+- else
+  = render 'new_compare'
diff --git a/app/views/projects/merge_requests/show/_mr_title.html.haml b/app/views/projects/merge_requests/show/_mr_title.html.haml
index 8f78e93df4f..2c905413bc3 100644
--- a/app/views/projects/merge_requests/show/_mr_title.html.haml
+++ b/app/views/projects/merge_requests/show/_mr_title.html.haml
@@ -39,4 +39,4 @@
     - else
       %span= @merge_request.source_branch
       &rarr;
-      %spanh= @merge_request.target_branch
+      %span= @merge_request.target_branch
diff --git a/features/project/forked_merge_requests.feature b/features/project/forked_merge_requests.feature
index 2d94b98c90b..5832b729deb 100644
--- a/features/project/forked_merge_requests.feature
+++ b/features/project/forked_merge_requests.feature
@@ -30,11 +30,10 @@ Feature: Project Forked Merge Requests
     Given I visit project "Forked Shop" merge requests page
     And I click link "New Merge Request"
     And I fill out an invalid "Merge Request On Forked Project" merge request
-    And I submit the merge request
     Then I should see validation errors
 
   @javascript
   Scenario: Merge request should target fork repository by default
     Given I visit project "Forked Shop" merge requests page
     And I click link "New Merge Request"
-    Then the target repository should be the original repository
\ No newline at end of file
+    Then the target repository should be the original repository
diff --git a/features/steps/project/forked_merge_requests.rb b/features/steps/project/forked_merge_requests.rb
index df69cb75437..3c497638d9c 100644
--- a/features/steps/project/forked_merge_requests.rb
+++ b/features/steps/project/forked_merge_requests.rb
@@ -53,6 +53,7 @@ class ProjectForkedMergeRequests < Spinach::FeatureSteps
 
     find(:select, "merge_request_source_branch", {}).value.should == 'master'
     find(:select, "merge_request_target_branch", {}).value.should == 'stable'
+    click_button "Compare branches"
 
     fill_in "merge_request_title", with: "Merge Request On Forked Project"
   end
@@ -148,29 +149,19 @@ class ProjectForkedMergeRequests < Spinach::FeatureSteps
     current_path.should == edit_project_merge_request_path(@project, @merge_request)
     page.should have_content "Edit merge request ##{@merge_request.id}"
     find("#merge_request_title").value.should == "Merge Request On Forked Project"
-    find("#merge_request_source_project_id").value.should == @forked_project.id.to_s
-    find("#merge_request_target_project_id").value.should == @project.id.to_s
-    find("#merge_request_source_branch").value.should have_content "master"
-    verify_commit_link(".mr_source_commit",@forked_project)
-    find("#merge_request_target_branch").value.should have_content "stable"
-    verify_commit_link(".mr_target_commit",@project)
   end
 
   step 'I fill out an invalid "Merge Request On Forked Project" merge request' do
-    #If this isn't filled in the rest of the validations won't be triggered
-    fill_in "merge_request_title", with: "Merge Request On Forked Project"
-
     select "Select branch", from: "merge_request_target_branch"
-
     find(:select, "merge_request_source_project_id", {}).value.should == @forked_project.id.to_s
     find(:select, "merge_request_target_project_id", {}).value.should == project.id.to_s
     find(:select, "merge_request_source_branch", {}).value.should == ""
     find(:select, "merge_request_target_branch", {}).value.should == ""
+    click_button "Compare branches"
   end
 
   step 'I should see validation errors' do
-    page.should have_content "Source branch can't be blank"
-    page.should have_content "Target branch can't be blank"
+    page.should have_content "You must select source and target branch"
   end
 
   step 'the target repository should be the original repository' do
diff --git a/features/steps/project/merge_requests.rb b/features/steps/project/merge_requests.rb
index f42eb6377ce..e0aec699a56 100644
--- a/features/steps/project/merge_requests.rb
+++ b/features/steps/project/merge_requests.rb
@@ -61,9 +61,10 @@ class ProjectMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I submit new merge request "Wiki Feature"' do
-    fill_in "merge_request_title", with: "Wiki Feature"
     select "master", from: "merge_request_source_branch"
     select "notes_refactoring", from: "merge_request_target_branch"
+    click_button "Compare branches"
+    fill_in "merge_request_title", with: "Wiki Feature"
     click_button "Submit merge request"
   end