added new summary serializers and refactor all of the summary stuff into separate logical classes

5 files changed, 118 insertions, 0 deletions

diff --git a/lib/gitlab/cycle_analytics/summary.rb b/lib/gitlab/cycle_analytics/summary.rb
new file mode 100644
index 00000000000..7d172855a94
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary.rb
@@ -0,0 +1,36 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      extend self
+
+      def initialize(project, from:)
+        @project = project
+        @from = from
+      end
+
+      def data
+        [serialize(issue),
+         serialize(commit),
+         serialize(deploy)]
+      end
+
+      private
+
+      def serialize(summary_object)
+        AnalyticsSummarySerializer.new.represent(summary_object).as_json
+      end
+
+      def issue
+        Summary::Issue.new(project: @project, from: @from)
+      end
+
+      def deploy
+        Summary::Deploy.new(project: @project, from: @from)
+      end
+
+      def commit
+        Summary::Commit.new(project: @project, from: @from)
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/base.rb b/lib/gitlab/cycle_analytics/summary/base.rb
new file mode 100644
index 00000000000..1bc4ff00b99
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/base.rb
@@ -0,0 +1,20 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Base
+        def initialize(project:, from:)
+          @project = project
+          @from = from
+        end
+
+        def title
+          self.name
+        end
+
+        def value
+          raise NotImplementedError.new("Expected #{self.name} to implement value")
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/commit.rb b/lib/gitlab/cycle_analytics/summary/commit.rb
new file mode 100644
index 00000000000..ec3c067c0be
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/commit.rb
@@ -0,0 +1,36 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Commit < Base
+        def value
+          @value ||= count_commits
+        end
+
+        private
+
+        # Don't use the `Gitlab::Git::Repository#log` method, because it enforces
+        # a limit. Since we need a commit count, we _can't_ enforce a limit, so
+        # the easiest way forward is to replicate the relevant portions of the
+        # `log` function here.
+        def count_commits
+          return unless ref
+
+          repository = @project.repository.raw_repository
+          sha = @project.repository.commit(ref).sha
+
+          cmd = %W(git --git-dir=#{repository.path} log)
+          cmd << '--format=%H'
+          cmd << "--after=#{@from.iso8601}"
+          cmd << sha
+
+          raw_output = IO.popen(cmd) { |io| io.read }
+          raw_output.lines.count
+        end
+
+        def ref
+          @ref ||= @project.default_branch.presence
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/deploy.rb b/lib/gitlab/cycle_analytics/summary/deploy.rb
new file mode 100644
index 00000000000..06032e9200e
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/deploy.rb
@@ -0,0 +1,11 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Deploy < Base
+        def value
+          @value ||= @project.deployments.where("created_at > ?", @from).count
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/issue.rb b/lib/gitlab/cycle_analytics/summary/issue.rb
new file mode 100644
index 00000000000..7d62164aae3
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/issue.rb
@@ -0,0 +1,15 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Issue < Base
+        def title
+          'New Issue'
+        end
+
+        def value
+          @value ||= @project.issues.created_after(@from).count
+        end
+      end
+    end
+  end
+end