commits_controller.rb
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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
  before_filter :render_full_content
  def index
    @repo = project.repo
    @limit, @offset = (params[:limit] || 40), (params[:offset] || 0)
    @commits = @project.commits(@ref, params[:path], @limit, @offset)
    respond_to do |format|
      format.html # index.html.erb
      format.js
      format.atom { render :layout => false }
    end
  end
  def show
    @commit = project.commit(params[:id])
    git_not_found! and return unless @commit
    @commit = CommitDecorator.decorate(@commit)
    @note = @project.build_commit_note(@commit)
    @comments_allowed = true
    @line_notes = project.commit_line_notes(@commit)
    @notes_count = @line_notes.count + project.commit_notes(@commit).count
    if @commit.diffs.size > 200 && !params[:force_show_diff]
      @suppress_diff = true 
    end
  end
  def compare
    first = project.commit(params[:to].try(:strip))
    last = project.commit(params[:from].try(:strip))
    @diffs = []
    @commits = []
    @line_notes = []
    if first && last
      commits = [first, last].sort_by(&:created_at)
      younger = commits.first
      older = commits.last
      @commits = project.repo.commits_between(younger.id, older.id).map {|c| Commit.new(c)}
      @diffs = project.repo.diff(younger.id, older.id) rescue []
      @commit = Commit.new(older)
    end
  end
end