Change Git::Repository#log to return Commits

2 files changed, 82 insertions, 78 deletions

diff --git a/lib/gitlab/git/commit.rb b/lib/gitlab/git/commit.rb
index 8ab3b0498ff..d0f04d25db2 100644
--- a/lib/gitlab/git/commit.rb
+++ b/lib/gitlab/git/commit.rb
@@ -38,7 +38,7 @@ module Gitlab
           repo = options.delete(:repo)
           raise 'Gitlab::Git::Repository is required' unless repo.respond_to?(:log)
 
-          repo.log(options).map { |c| decorate(c) }
+          repo.log(options)
         end
 
         # Get single commit
diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index bd9993f275d..32a462ee7dd 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -331,83 +331,7 @@ module Gitlab
       #   )
       #
       def log(options)
-        default_options = {
-          limit: 10,
-          offset: 0,
-          path: nil,
-          follow: false,
-          skip_merges: false,
-          disable_walk: false,
-          after: nil,
-          before: nil
-        }
-
-        options = default_options.merge(options)
-        options[:limit] ||= 0
-        options[:offset] ||= 0
-        actual_ref = options[:ref] || root_ref
-        begin
-          sha = sha_from_ref(actual_ref)
-        rescue Rugged::OdbError, Rugged::InvalidError, Rugged::ReferenceError
-          # Return an empty array if the ref wasn't found
-          return []
-        end
-
-        if log_using_shell?(options)
-          log_by_shell(sha, options)
-        else
-          log_by_walk(sha, options)
-        end
-      end
-
-      def log_using_shell?(options)
-        options[:path].present? ||
-          options[:disable_walk] ||
-          options[:skip_merges] ||
-          options[:after] ||
-          options[:before]
-      end
-
-      def log_by_walk(sha, options)
-        walk_options = {
-          show: sha,
-          sort: Rugged::SORT_NONE,
-          limit: options[:limit],
-          offset: options[:offset]
-        }
-        Rugged::Walker.walk(rugged, walk_options).to_a
-      end
-
-      def log_by_shell(sha, options)
-        limit = options[:limit].to_i
-        offset = options[:offset].to_i
-        use_follow_flag = options[:follow] && options[:path].present?
-
-        # We will perform the offset in Ruby because --follow doesn't play well with --skip.
-        # See: https://gitlab.com/gitlab-org/gitlab-ce/issues/3574#note_3040520
-        offset_in_ruby = use_follow_flag && options[:offset].present?
-        limit += offset if offset_in_ruby
-
-        cmd = %W[#{Gitlab.config.git.bin_path} --git-dir=#{path} log]
-        cmd << "--max-count=#{limit}"
-        cmd << '--format=%H'
-        cmd << "--skip=#{offset}" unless offset_in_ruby
-        cmd << '--follow' if use_follow_flag
-        cmd << '--no-merges' if options[:skip_merges]
-        cmd << "--after=#{options[:after].iso8601}" if options[:after]
-        cmd << "--before=#{options[:before].iso8601}" if options[:before]
-        cmd << sha
-
-        # :path can be a string or an array of strings
-        if options[:path].present?
-          cmd << '--'
-          cmd += Array(options[:path])
-        end
-
-        raw_output = IO.popen(cmd) { |io| io.read }
-        lines = offset_in_ruby ? raw_output.lines.drop(offset) : raw_output.lines
-
-        lines.map! { |c| Rugged::Commit.new(rugged, c.strip) }
+        raw_log(options).map { |c| Commit.decorate(c) }
       end
 
       def count_commits(options)
@@ -912,6 +836,86 @@ module Gitlab
 
       private
 
+      def raw_log(options)
+        default_options = {
+          limit: 10,
+          offset: 0,
+          path: nil,
+          follow: false,
+          skip_merges: false,
+          disable_walk: false,
+          after: nil,
+          before: nil
+        }
+
+        options = default_options.merge(options)
+        options[:limit] ||= 0
+        options[:offset] ||= 0
+        actual_ref = options[:ref] || root_ref
+        begin
+          sha = sha_from_ref(actual_ref)
+        rescue Rugged::OdbError, Rugged::InvalidError, Rugged::ReferenceError
+          # Return an empty array if the ref wasn't found
+          return []
+        end
+
+        if log_using_shell?(options)
+          log_by_shell(sha, options)
+        else
+          log_by_walk(sha, options)
+        end
+      end
+
+      def log_using_shell?(options)
+        options[:path].present? ||
+          options[:disable_walk] ||
+          options[:skip_merges] ||
+          options[:after] ||
+          options[:before]
+      end
+
+      def log_by_walk(sha, options)
+        walk_options = {
+          show: sha,
+          sort: Rugged::SORT_NONE,
+          limit: options[:limit],
+          offset: options[:offset]
+        }
+        Rugged::Walker.walk(rugged, walk_options).to_a
+      end
+
+      def log_by_shell(sha, options)
+        limit = options[:limit].to_i
+        offset = options[:offset].to_i
+        use_follow_flag = options[:follow] && options[:path].present?
+
+        # We will perform the offset in Ruby because --follow doesn't play well with --skip.
+        # See: https://gitlab.com/gitlab-org/gitlab-ce/issues/3574#note_3040520
+        offset_in_ruby = use_follow_flag && options[:offset].present?
+        limit += offset if offset_in_ruby
+
+        cmd = %W[#{Gitlab.config.git.bin_path} --git-dir=#{path} log]
+        cmd << "--max-count=#{limit}"
+        cmd << '--format=%H'
+        cmd << "--skip=#{offset}" unless offset_in_ruby
+        cmd << '--follow' if use_follow_flag
+        cmd << '--no-merges' if options[:skip_merges]
+        cmd << "--after=#{options[:after].iso8601}" if options[:after]
+        cmd << "--before=#{options[:before].iso8601}" if options[:before]
+        cmd << sha
+
+        # :path can be a string or an array of strings
+        if options[:path].present?
+          cmd << '--'
+          cmd += Array(options[:path])
+        end
+
+        raw_output = IO.popen(cmd) { |io| io.read }
+        lines = offset_in_ruby ? raw_output.lines.drop(offset) : raw_output.lines
+
+        lines.map! { |c| Rugged::Commit.new(rugged, c.strip) }
+      end
+
       # We are trying to deprecate this method because it does a lot of work
       # but it seems to be used only to look up submodule URL's.
       # https://gitlab.com/gitlab-org/gitaly/issues/329