core: removing Object.Content, the Reader should be used always

1 files changed, 15 insertions, 2 deletions

diff --git a/formats/packfile/delta.go b/formats/packfile/delta.go
index 95c13d5..d08f969 100644
--- a/formats/packfile/delta.go
+++ b/formats/packfile/delta.go
@@ -1,6 +1,10 @@
 package packfile
 
-import "gopkg.in/src-d/go-git.v4/core"
+import (
+	"io/ioutil"
+
+	"gopkg.in/src-d/go-git.v4/core"
+)
 
 // See https://github.com/git/git/blob/49fa3dc76179e04b0833542fa52d0f287a4955ac/delta.h
 // https://github.com/git/git/blob/c2c5f6b1e479f2c38e0e01345350620944e3527f/patch-delta.c,
@@ -11,12 +15,21 @@ const deltaSizeMin = 4
 
 // ApplyDelta writes to taget the result of applying the modification deltas in delta to base.
 func ApplyDelta(target, base core.Object, delta []byte) error {
-	src := base.Content()
+	r, err := base.Reader()
+	if err != nil {
+		return err
+	}
+
 	w, err := target.Writer()
 	if err != nil {
 		return err
 	}
 
+	src, err := ioutil.ReadAll(r)
+	if err != nil {
+		return err
+	}
+
 	dst := PatchDelta(src, delta)
 	target.SetSize(int64(len(dst)))