Index: Add OpenIndex

This lets you persist an index at an arbitrary location.

1 files changed, 24 insertions, 0 deletions

diff --git a/index_test.go b/index_test.go
index a1f0c9c..9b54945 100644
--- a/index_test.go
+++ b/index_test.go
@@ -2,6 +2,7 @@ package git
 
 import (
 	"io/ioutil"
+	"os"
 	"runtime"
 	"testing"
 )
@@ -148,6 +149,29 @@ func TestIndexAddAllCallback(t *testing.T) {
 	}
 }
 
+func TestIndexOpen(t *testing.T) {
+	repo := createTestRepo(t)
+	defer cleanupTestRepo(t, repo)
+
+	path := repo.Workdir() + "/heyindex"
+
+	_, err := os.Stat(path)
+	if !os.IsNotExist(err) {
+		t.Fatal("new index file already exists")
+	}
+
+	idx, err := OpenIndex(path)
+	checkFatal(t, err)
+
+	err = idx.Write()
+	checkFatal(t, err)
+
+	_, err = os.Stat(path)
+	if os.IsNotExist(err) {
+		t.Fatal("new index file did not get written")
+	}
+}
+
 func checkFatal(t *testing.T, err error) {
 	if err == nil {
 		return