Fix bufferedSeeker.Seek for SeekCurrent and non-zero offset.

filipnavara · filipnavara · commit 65c569547ecc · 2018-09-24T10:26:01.000+02:00
Signed-off-by: Filip Navara &lt;navara@emclient.com&gt;
diff --git a/plumbing/format/packfile/scanner.go b/plumbing/format/packfile/scanner.go
@@ -423,7 +423,7 @@ type bufferedSeeker struct {
 }
 
 func (r *bufferedSeeker) Seek(offset int64, whence int) (int64, error) {
-	if whence == io.SeekCurrent {
+	if whence == io.SeekCurrent && offset == 0 {
 		current, err := r.r.Seek(offset, whence)
 		if err != nil {
 			return current, err

Original file line number	Diff line number	Diff line change
`@@ -423,7 +423,7 @@ type bufferedSeeker struct {`
`423`	`423`	`}`
`424`	`424`
`425`	`425`	`func (r *bufferedSeeker) Seek(offset int64, whence int) (int64, error) {`
`426`		`- if whence == io.SeekCurrent {`
	`426`	`+ if whence == io.SeekCurrent && offset == 0 {`
`427`	`427`	`current, err := r.r.Seek(offset, whence)`
`428`	`428`	`if err != nil {`
`429`	`429`	`return current, err`