From 0a2f13a555980f5e3d5e2f74f09ae144f790dd9b Mon Sep 17 00:00:00 2001
From: Chih-Hung Hsieh <chh@google.com>
Date: Wed, 24 Oct 2018 18:25:00 -0700
Subject: [PATCH] Add StoredValues.REPO_MANAGER

First customer will be the find-owners plugin to check owner approval
at change submit time, when it might need to include/read OWNERS files
in different repositories. OwnersDb is cached to avoid repeated access
to the same OWNERS files.

Change-Id: If94c29d961807daf961bfa6f2e6ffed4e9731d6c
---
 .../com/google/gerrit/server/rules/StoredValues.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/java/com/google/gerrit/server/rules/StoredValues.java b/java/com/google/gerrit/server/rules/StoredValues.java
index 8b9cfe3fdb..a712635a3e 100644
--- a/java/com/google/gerrit/server/rules/StoredValues.java
+++ b/java/com/google/gerrit/server/rules/StoredValues.java
@@ -110,6 +110,18 @@ public final class StoredValues {
         }
       };
 
+  // Accessing GitRepositoryManager could be slow.
+  // It should be minimized or cached to reduce pause time
+  // when evaluating Prolog submit rules.
+  public static final StoredValue<GitRepositoryManager> REPO_MANAGER =
+      new StoredValue<GitRepositoryManager>() {
+        @Override
+        public GitRepositoryManager createValue(Prolog engine) {
+          PrologEnvironment env = (PrologEnvironment) engine.control;
+          return env.getArgs().getGitRepositoryManager();
+        }
+      };
+
   public static final StoredValue<Repository> REPOSITORY =
       new StoredValue<Repository>() {
         @Override