gitlabhq/app/controllers/commits_controller.rb

require "base64"

class CommitsController < ApplicationController
  before_filter :project
  layout "project"

  # Authorize
  before_filter :add_project_abilities
  before_filter :authorize_read_project!
  before_filter :authorize_code_access!
  before_filter :require_non_empty_project
  before_filter :load_refs, only: :index # load @branch, @tag & @ref

  def index
    @repo = project.repo
    @limit, @offset = (params[:limit] || 40), (params[:offset] || 0)

    @commits = @project.commits(@ref, params[:path], @limit, @offset)
    @commits = CommitDecorator.decorate(@commits)

    respond_to do |format|
      format.html # index.html.erb
      format.js
      format.atom { render layout: false }
    end
  end

  # def show
  #   result = CommitLoad.new(project, current_user, params).execute

  #   @commit = result[:commit]

  #   if @commit
  #     @suppress_diff = result[:suppress_diff]
  #     @note          = result[:note]
  #     @line_notes    = result[:line_notes]
  #     @notes_count   = result[:notes_count]
  #     @comments_allowed = true
  #   else
  #     return git_not_found!
  #   end

  #   if result[:status] == :huge_commit
  #     render "huge_commit" and return
  #   end
  # end

  def patch
    @commit = project.commit(params[:id])

    send_data(
      @commit.to_patch,
      type: "text/plain",
      disposition: 'attachment',
      filename: "#{@commit.id}.patch"
    )
  end

  protected

  def load_refs
    @ref ||= params[:ref].presence || params[:branch].presence || params[:tag].presence
    @ref ||= @ref || @project.try(:default_branch) || 'master'
  end
end