1 files changed, 0 insertions, 155 deletions
diff --git a/plumbing/format/packp/advrefs/encoder.go b/plumbing/format/packp/advrefs/encoder.go
deleted file mode 100644
index 8c52f14..0000000
--- a/plumbing/format/packp/advrefs/encoder.go
+++ /dev/null
@@ -1,155 +0,0 @@
-package advrefs
-
-import (
-	"bytes"
-	"io"
-	"sort"
-
-	"gopkg.in/src-d/go-git.v4/plumbing"
-	"gopkg.in/src-d/go-git.v4/plumbing/format/packp"
-	"gopkg.in/src-d/go-git.v4/plumbing/format/packp/pktline"
-)
-
-// An Encoder writes AdvRefs values to an output stream.
-type Encoder struct {
-	data *AdvRefs         // data to encode
-	pe   *pktline.Encoder // where to write the encoded data
-	err  error            // sticky error
-}
-
-// NewEncoder returns a new encoder that writes to w.
-func NewEncoder(w io.Writer) *Encoder {
-	return &Encoder{
-		pe: pktline.NewEncoder(w),
-	}
-}
-
-// Encode writes the AdvRefs encoding of v to the stream.
-//
-// All the payloads will end with a newline character.  Capabilities,
-// references and shallows are writen in alphabetical order, except for
-// peeled references that always follow their corresponding references.
-func (e *Encoder) Encode(v *AdvRefs) error {
-	e.data = v
-
-	for state := encodePrefix; state != nil; {
-		state = state(e)
-	}
-
-	return e.err
-}
-
-type encoderStateFn func(*Encoder) encoderStateFn
-
-func encodePrefix(e *Encoder) encoderStateFn {
-	for _, p := range e.data.Prefix {
-		if bytes.Equal(p, pktline.Flush) {
-			if e.err = e.pe.Flush(); e.err != nil {
-				return nil
-			}
-			continue
-		}
-		if e.err = e.pe.Encodef("%s\n", string(p)); e.err != nil {
-			return nil
-		}
-	}
-
-	return encodeFirstLine
-}
-
-// Adds the first pkt-line payload: head hash, head ref and capabilities.
-// Also handle the special case when no HEAD ref is found.
-func encodeFirstLine(e *Encoder) encoderStateFn {
-	head := formatHead(e.data.Head)
-	separator := formatSeparator(e.data.Head)
-	capabilities := formatCaps(e.data.Capabilities)
-
-	if e.err = e.pe.Encodef("%s %s\x00%s\n", head, separator, capabilities); e.err != nil {
-		return nil
-	}
-
-	return encodeRefs
-}
-
-func formatHead(h *plumbing.Hash) string {
-	if h == nil {
-		return plumbing.ZeroHash.String()
-	}
-
-	return h.String()
-}
-
-func formatSeparator(h *plumbing.Hash) string {
-	if h == nil {
-		return noHead
-	}
-
-	return head
-}
-
-func formatCaps(c *packp.Capabilities) string {
-	if c == nil {
-		return ""
-	}
-
-	c.Sort()
-
-	return c.String()
-}
-
-// Adds the (sorted) refs: hash SP refname EOL
-// and their peeled refs if any.
-func encodeRefs(e *Encoder) encoderStateFn {
-	refs := sortRefs(e.data.References)
-	for _, r := range refs {
-		hash, _ := e.data.References[r]
-		if e.err = e.pe.Encodef("%s %s\n", hash.String(), r); e.err != nil {
-			return nil
-		}
-
-		if hash, ok := e.data.Peeled[r]; ok {
-			if e.err = e.pe.Encodef("%s %s^{}\n", hash.String(), r); e.err != nil {
-				return nil
-			}
-		}
-	}
-
-	return encodeShallow
-}
-
-func sortRefs(m map[string]plumbing.Hash) []string {
-	ret := make([]string, 0, len(m))
-	for k := range m {
-		ret = append(ret, k)
-	}
-	sort.Strings(ret)
-
-	return ret
-}
-
-// Adds the (sorted) shallows: "shallow" SP hash EOL
-func encodeShallow(e *Encoder) encoderStateFn {
-	sorted := sortShallows(e.data.Shallows)
-	for _, hash := range sorted {
-		if e.err = e.pe.Encodef("shallow %s\n", hash); e.err != nil {
-			return nil
-		}
-	}
-
-	return encodeFlush
-}
-
-func sortShallows(c []plumbing.Hash) []string {
-	ret := []string{}
-	for _, h := range c {
-		ret = append(ret, h.String())
-	}
-	sort.Strings(ret)
-
-	return ret
-}
-
-func encodeFlush(e *Encoder) encoderStateFn {
-	e.err = e.pe.Flush()
-	return nil
-}