From 948e12b8d7e17b107a93096d0a5e688c6680022d Mon Sep 17 00:00:00 2001
From: Yuriy Syrovetskiy <cblp@cblp.su>
Date: Wed, 12 Aug 2015 17:28:19 +0300
Subject: [PATCH 1/3] [+] lazy loading of submodules

---
 src/git.coffee | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/git.coffee b/src/git.coffee
index d1927a19..4e9f806b 100644
--- a/src/git.coffee
+++ b/src/git.coffee
@@ -157,6 +157,9 @@ Repository::submoduleForPath = (path) ->
   path = @relativize(path)
   return null unless path
 
+  if @submodules instanceof Function
+    @submodules()
+
   for submodulePath, submoduleRepo of @submodules
     if path is submodulePath
       return submoduleRepo
@@ -228,5 +231,6 @@ openSubmodules = (repository) ->
 
 exports.open = (repositoryPath) ->
   repository = openRepository(repositoryPath)
-  openSubmodules(repository) if repository?
+  if repository?
+    repository.submodules = -> openSubmodules(repository)
   repository

From 7f70f2cdb3bc7c1b66f359fbce71630be493bec1 Mon Sep 17 00:00:00 2001
From: Yuriy Syrovetskiy <cblp@cblp.su>
Date: Wed, 12 Aug 2015 17:49:44 +0300
Subject: [PATCH 2/3] [+] test

---
 spec/git-spec.coffee | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spec/git-spec.coffee b/spec/git-spec.coffee
index 1c001efe..376efd30 100644
--- a/spec/git-spec.coffee
+++ b/spec/git-spec.coffee
@@ -23,6 +23,8 @@ describe "git", ->
     describe "when the path is a repository", ->
       it "returns a repository", ->
         expect(git.open(__dirname)).not.toBeNull()
+      it "has @submodules unevaluated", ->
+        expect(typeof(git.open(__dirname).submodules)).toBe('function')
 
     describe "when the path isn't a repository", ->
       it "returns null", ->

From e1cfd668d210ce048ced7a03d83dcdac7d676e26 Mon Sep 17 00:00:00 2001
From: Yuriy Syrovetskiy <cblp@cblp.su>
Date: Wed, 12 Aug 2015 17:57:06 +0300
Subject: [PATCH 3/3] [+] clarification

---
 src/git.coffee | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/git.coffee b/src/git.coffee
index 4e9f806b..02441d83 100644
--- a/src/git.coffee
+++ b/src/git.coffee
@@ -232,5 +232,7 @@ openSubmodules = (repository) ->
 exports.open = (repositoryPath) ->
   repository = openRepository(repositoryPath)
   if repository?
+    # openSubmodules may be long (e.g., on network FS),
+    # so loading them lazily
     repository.submodules = -> openSubmodules(repository)
   repository