add git.iim.gay/grufwub/go-store for storage backend, replacing blob.Storage

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

vendor/git.iim.gay/grufwub/go-bytes/pool.go

@@ -0,0 +1,39 @@
+package bytes
+
+import (
+	"bytes"
+	"sync"
+)
+
+type SizedBufferPool struct {
+	pool sync.Pool
+	len  int
+	cap  int
+}
+
+func (p *SizedBufferPool) Init(len, cap int) {
+	p.pool.New = func() interface{} {
+		buf := NewBuffer(make([]byte, len, cap))
+		return &buf
+	}
+	p.len = len
+	p.cap = cap
+}
+
+func (p *SizedBufferPool) Acquire() *bytes.Buffer {
+	return p.pool.Get().(*bytes.Buffer)
+}
+
+func (p *SizedBufferPool) Release(buf *bytes.Buffer) {
+	// If not enough cap, ignore
+	if buf.Cap() < p.cap {
+		return
+	}
+
+	// Set length to expected
+	buf.Reset()
+	buf.Grow(p.len)
+
+	// Place in pool
+	p.pool.Put(buf)
+}