From d099f2fab23bf3c907ed1d702537b189a1c08b83 Mon Sep 17 00:00:00 2001
From: Peter Dave Hello <hsu@peterdavehello.org>
Date: Mon, 16 Nov 2015 15:18:22 +0800
Subject: [PATCH] Support git's shallow clone

---
 README.md              | 2 +-
 src/index.coffee       | 8 ++++++--
 test/index.test.coffee | 2 +-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 565ed6c..14fb13f 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ Clone a repository:
 
     git = require 'gift'
 
-    git.clone "git@host:path/to/remote/repo.git", "path/to/local/clone/repo", (err, _repo) ->
+    git.clone "git@host:path/to/remote/repo.git", "path/to/local/clone/repo", depth, (err, _repo) ->
       repo = _repo
       # => #<Repo>
 
diff --git a/src/index.coffee b/src/index.coffee
index 307f2c8..f287439 100644
--- a/src/index.coffee
+++ b/src/index.coffee
@@ -32,10 +32,14 @@ Git.init = (path, bare, callback) ->
 #
 # repository - The repository to clone from.
 # path       - The directory to clone into.
+# depth      - The specified number of revisions of shallow clone
 # callback   - Receives `(err, repo)`.
 #
-Git.clone = (repository, path, callback) ->
-  bash = "git clone \"#{repository}\" \"#{path}\""
+Git.clone = (repository, path, depth = 0, callback) ->
+  if (0 == depth)
+    bash = "git clone \"#{repository}\" \"#{path}\""
+  else
+    bash = "git clone \"#{repository}\" \"#{path}\" --depth \"#{depth}\""
   exec bash, (err, stdout, stderr) ->
     return callback err if err
     return callback err, (new Repo path, false, { maxBuffer: Git.maxBuffer })
diff --git a/test/index.test.coffee b/test/index.test.coffee
index af59585..4166ad4 100644
--- a/test/index.test.coffee
+++ b/test/index.test.coffee
@@ -45,7 +45,7 @@ describe "git", ->
     repo = null
     newRepositoryDir = "#{__dirname}/fixtures/clone"
     before (done) ->
-      git.clone "https://github.com/notatestuser/gift.git", newRepositoryDir, (err, _repo) ->
+      git.clone "https://github.com/notatestuser/gift.git", newRepositoryDir, 1, (err, _repo) ->
         repo = _repo
         done err
     it "clone a repository", (done) ->