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path: root/app/controllers/projects/branches_controller.rb
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class Projects::BranchesController < Projects::ApplicationController
  include ActionView::Helpers::SanitizeHelper
  # Authorize
  before_action :require_non_empty_project
  before_action :authorize_download_code!
  before_action :authorize_push_code!, only: [:new, :create, :destroy]

  def index
    @sort = params[:sort] || 'name'
    @branches = @repository.branches_sorted_by(@sort)
    @branches = Kaminari.paginate_array(@branches).page(params[: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
    @branches = @repository.recent_branches
  end

  def create
    branch_name = sanitize(strip_tags(params[:branch_name]))
    branch_name = Addressable::URI.unescape(branch_name)

    result = CreateBranchService.new(project, current_user).
        execute(branch_name, ref)

    if params[:issue_iid]
      issue = @project.issues.find_by(iid: params[:issue_iid])
      SystemNoteService.new_issue_branch(issue, @project, current_user, branch_name) if issue
    end

    if result[:status] == :success
      @branch = result[:branch]
      redirect_to namespace_project_tree_path(@project.namespace, @project,
                                              @branch.name)
    else
      @error = result[:message]
      render action: 'new'
    end
  end

  def destroy
    @branch_name = Addressable::URI.unescape(params[:id])
    status = DeleteBranchService.new(project, current_user).execute(@branch_name)
    respond_to do |format|
      format.html do
        redirect_to namespace_project_branches_path(@project.namespace,
                                                    @project), status: 303
      end
      format.js { render nothing: true, status: status[:return_code] }
    end
  end

  private

  def ref
    if params[:ref]
      ref_escaped = sanitize(strip_tags(params[:ref]))
      Addressable::URI.unescape(ref_escaped)
    else
      @project.default_branch
    end
  end
end