plumbing: packfile/scanner, readability/performance improvements, zlib pooling

Signed-off-by: Arran Walker <arran.walker@fiveturns.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/plumbing/format/packfile/common.go b/plumbing/format/packfile/common.go
index 0d9ed54..f82c1ab 100644
--- a/plumbing/format/packfile/common.go
+++ b/plumbing/format/packfile/common.go
@@ -2,6 +2,7 @@ package packfile
 
 import (
 	"bytes"
+	"compress/zlib"
 	"io"
 	"sync"
 
@@ -66,3 +67,12 @@ var bufPool = sync.Pool{
 		return bytes.NewBuffer(nil)
 	},
 }
+
+var zlibInitBytes = []byte{0x78, 0x9c, 0x01, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01}
+
+var zlibReaderPool = sync.Pool{
+	New: func() interface{} {
+		r, _ := zlib.NewReader(bytes.NewReader(zlibInitBytes))
+		return r
+	},
+}