lib/git/git.rb in git_lib-2.0.0 vs lib/git/git.rb in git_lib-2.1.0

@@ -148,20 +148,28 @@
         "origin/#{Shellwords.escape(branch_name)})..origin/#{Shellwords.escape(branch_name)}"
       )
       raw_output.split("\n")
     end
 
+    def sha_list_for_ref_range(ref, ancestor_ref, fetch: false)
+      commit_diff_refs(ref, ancestor_ref, fetch: fetch).map(&:sha)
+    end
+
     def commit_diff_refs(ref, ancestor_ref, fetch: false)
       if fetch
         fetch_all
       end
-      ref_prefix = 'origin/' unless self.class.is_git_sha?(ref)
+
+      ref_prefix          = 'origin/' unless self.class.is_git_sha?(ref)
       ancestor_ref_prefix = 'origin/' unless self.class.is_git_sha?(ancestor_ref)
 
-      raw_output = execute(
-        "log --format=%H\t%an\t%ae\t%aI\t%s " \
-        "--no-color #{ancestor_ref_prefix}#{Shellwords.escape(ancestor_ref)}..#{ref_prefix}#{Shellwords.escape(ref)}"
-      )
+      sha_range = if ancestor_ref
+                    "#{ancestor_ref_prefix}#{Shellwords.escape(ancestor_ref)}..#{ref_prefix}#{Shellwords.escape(ref)}"
+                  else
+                    "#{ref_prefix}#{Shellwords.escape(ref)}"
+                  end
+
+      raw_output = execute("log --format=%H\t%an\t%ae\t%aI\t%s --no-color #{sha_range}")
       raw_output.split("\n").map do |row|
         commit_data = row.split("\t")
         GitCommit.new(commit_data[0], commit_data[4], DateTime.iso8601(commit_data[3]), commit_data[1], commit_data[2], repository_name: @repository_name)
       end
     end