lib/danger/commands/local.rb in danger-0.7.3 vs lib/danger/commands/local.rb in danger-0.7.4

@@ -3,22 +3,30 @@
     self.summary = 'Run the Dangerfile locally.'
     self.command = 'local'
 
     def initialize(argv)
       @dangerfile_path = "Dangerfile" if File.exist? "Dangerfile"
+      @pr_num = argv.option('use-merged-pr')
       super
     end
 
+    def self.options
+      [
+        ['--use-merged-pr=[#id]', 'The ID of an alreadty merged PR inside your history to use as a reference for the local run.']
+      ].concat(super)
+    end
+
     def validate!
       super
       unless @dangerfile_path
         help! "Could not find a Dangerfile."
       end
     end
 
     def run
       ENV["DANGER_USE_LOCAL_GIT"] = "YES"
+      ENV["LOCAL_GIT_PR_ID"] = @pr_num if @pr_num
 
       dm = Dangerfile.new
       dm.env = EnvironmentManager.new(ENV)
 
       source = dm.env.ci_source
@@ -45,9 +53,10 @@
 
       dm.env.request_source = gh
 
       dm.env.scm = GitRepo.new
 
+      dm.env.ensure_danger_branches_are_setup
       dm.env.scm.diff_for_folder(".", from: dm.env.ci_source.base_commit, to: dm.env.ci_source.head_commit)
       dm.parse(Pathname.new(@dangerfile_path))
       dm.print_results
     end
   end