1 files changed, 0 insertions, 287 deletions
diff --git a/plumbing/format/packp/ulreq/decoder.go b/plumbing/format/packp/ulreq/decoder.go
deleted file mode 100644
index 9083e04..0000000
--- a/plumbing/format/packp/ulreq/decoder.go
+++ /dev/null
@@ -1,287 +0,0 @@
-package ulreq
-
-import (
-	"bytes"
-	"encoding/hex"
-	"fmt"
-	"io"
-	"strconv"
-	"time"
-
-	"gopkg.in/src-d/go-git.v4/plumbing"
-	"gopkg.in/src-d/go-git.v4/plumbing/format/packp/pktline"
-)
-
-const (
-	hashSize = 40
-)
-
-var (
-	eol             = []byte("\n")
-	sp              = []byte(" ")
-	want            = []byte("want ")
-	shallow         = []byte("shallow ")
-	deepen          = []byte("deepen")
-	deepenCommits   = []byte("deepen ")
-	deepenSince     = []byte("deepen-since ")
-	deepenReference = []byte("deepen-not ")
-)
-
-// A Decoder reads and decodes AdvRef values from an input stream.
-type Decoder struct {
-	s     *pktline.Scanner // a pkt-line scanner from the input stream
-	line  []byte           // current pkt-line contents, use parser.nextLine() to make it advance
-	nLine int              // current pkt-line number for debugging, begins at 1
-	err   error            // sticky error, use the parser.error() method to fill this out
-	data  *UlReq           // parsed data is stored here
-}
-
-// NewDecoder returns a new decoder that reads from r.
-//
-// Will not read more data from r than necessary.
-func NewDecoder(r io.Reader) *Decoder {
-	return &Decoder{
-		s: pktline.NewScanner(r),
-	}
-}
-
-// Decode reads the next upload-request form its input and
-// stores it in the value pointed to by v.
-func (d *Decoder) Decode(v *UlReq) error {
-	d.data = v
-
-	for state := decodeFirstWant; state != nil; {
-		state = state(d)
-	}
-
-	return d.err
-}
-
-type decoderStateFn func(*Decoder) decoderStateFn
-
-// fills out the parser stiky error
-func (d *Decoder) error(format string, a ...interface{}) {
-	d.err = fmt.Errorf("pkt-line %d: %s", d.nLine,
-		fmt.Sprintf(format, a...))
-}
-
-// Reads a new pkt-line from the scanner, makes its payload available as
-// p.line and increments p.nLine.  A successful invocation returns true,
-// otherwise, false is returned and the sticky error is filled out
-// accordingly.  Trims eols at the end of the payloads.
-func (d *Decoder) nextLine() bool {
-	d.nLine++
-
-	if !d.s.Scan() {
-		if d.err = d.s.Err(); d.err != nil {
-			return false
-		}
-
-		d.error("EOF")
-		return false
-	}
-
-	d.line = d.s.Bytes()
-	d.line = bytes.TrimSuffix(d.line, eol)
-
-	return true
-}
-
-// Expected format: want <hash>[ capabilities]
-func decodeFirstWant(d *Decoder) decoderStateFn {
-	if ok := d.nextLine(); !ok {
-		return nil
-	}
-
-	if !bytes.HasPrefix(d.line, want) {
-		d.error("missing 'want ' prefix")
-		return nil
-	}
-	d.line = bytes.TrimPrefix(d.line, want)
-
-	hash, ok := d.readHash()
-	if !ok {
-		return nil
-	}
-	d.data.Wants = append(d.data.Wants, hash)
-
-	return decodeCaps
-}
-
-func (d *Decoder) readHash() (plumbing.Hash, bool) {
-	if len(d.line) < hashSize {
-		d.err = fmt.Errorf("malformed hash: %v", d.line)
-		return plumbing.ZeroHash, false
-	}
-
-	var hash plumbing.Hash
-	if _, err := hex.Decode(hash[:], d.line[:hashSize]); err != nil {
-		d.error("invalid hash text: %s", err)
-		return plumbing.ZeroHash, false
-	}
-	d.line = d.line[hashSize:]
-
-	return hash, true
-}
-
-// Expected format: sp cap1 sp cap2 sp cap3...
-func decodeCaps(d *Decoder) decoderStateFn {
-	if len(d.line) == 0 {
-		return decodeOtherWants
-	}
-
-	d.line = bytes.TrimPrefix(d.line, sp)
-
-	for _, c := range bytes.Split(d.line, sp) {
-		name, values := readCapability(c)
-		d.data.Capabilities.Add(name, values...)
-	}
-
-	return decodeOtherWants
-}
-
-// Capabilities are a single string or a name=value.
-// Even though we are only going to read at moust 1 value, we return
-// a slice of values, as Capability.Add receives that.
-func readCapability(data []byte) (name string, values []string) {
-	pair := bytes.SplitN(data, []byte{'='}, 2)
-	if len(pair) == 2 {
-		values = append(values, string(pair[1]))
-	}
-
-	return string(pair[0]), values
-}
-
-// Expected format: want <hash>
-func decodeOtherWants(d *Decoder) decoderStateFn {
-	if ok := d.nextLine(); !ok {
-		return nil
-	}
-
-	if bytes.HasPrefix(d.line, shallow) {
-		return decodeShallow
-	}
-
-	if bytes.HasPrefix(d.line, deepen) {
-		return decodeDeepen
-	}
-
-	if len(d.line) == 0 {
-		return nil
-	}
-
-	if !bytes.HasPrefix(d.line, want) {
-		d.error("unexpected payload while expecting a want: %q", d.line)
-		return nil
-	}
-	d.line = bytes.TrimPrefix(d.line, want)
-
-	hash, ok := d.readHash()
-	if !ok {
-		return nil
-	}
-	d.data.Wants = append(d.data.Wants, hash)
-
-	return decodeOtherWants
-}
-
-// Expected format: shallow <hash>
-func decodeShallow(d *Decoder) decoderStateFn {
-	if bytes.HasPrefix(d.line, deepen) {
-		return decodeDeepen
-	}
-
-	if len(d.line) == 0 {
-		return nil
-	}
-
-	if !bytes.HasPrefix(d.line, shallow) {
-		d.error("unexpected payload while expecting a shallow: %q", d.line)
-		return nil
-	}
-	d.line = bytes.TrimPrefix(d.line, shallow)
-
-	hash, ok := d.readHash()
-	if !ok {
-		return nil
-	}
-	d.data.Shallows = append(d.data.Shallows, hash)
-
-	if ok := d.nextLine(); !ok {
-		return nil
-	}
-
-	return decodeShallow
-}
-
-// Expected format: deepen <n> / deepen-since <ul> / deepen-not <ref>
-func decodeDeepen(d *Decoder) decoderStateFn {
-	if bytes.HasPrefix(d.line, deepenCommits) {
-		return decodeDeepenCommits
-	}
-
-	if bytes.HasPrefix(d.line, deepenSince) {
-		return decodeDeepenSince
-	}
-
-	if bytes.HasPrefix(d.line, deepenReference) {
-		return decodeDeepenReference
-	}
-
-	if len(d.line) == 0 {
-		return nil
-	}
-
-	d.error("unexpected deepen specification: %q", d.line)
-	return nil
-}
-
-func decodeDeepenCommits(d *Decoder) decoderStateFn {
-	d.line = bytes.TrimPrefix(d.line, deepenCommits)
-
-	var n int
-	if n, d.err = strconv.Atoi(string(d.line)); d.err != nil {
-		return nil
-	}
-	if n < 0 {
-		d.err = fmt.Errorf("negative depth")
-		return nil
-	}
-	d.data.Depth = DepthCommits(n)
-
-	return decodeFlush
-}
-
-func decodeDeepenSince(d *Decoder) decoderStateFn {
-	d.line = bytes.TrimPrefix(d.line, deepenSince)
-
-	var secs int64
-	secs, d.err = strconv.ParseInt(string(d.line), 10, 64)
-	if d.err != nil {
-		return nil
-	}
-	t := time.Unix(secs, 0).UTC()
-	d.data.Depth = DepthSince(t)
-
-	return decodeFlush
-}
-
-func decodeDeepenReference(d *Decoder) decoderStateFn {
-	d.line = bytes.TrimPrefix(d.line, deepenReference)
-
-	d.data.Depth = DepthReference(string(d.line))
-
-	return decodeFlush
-}
-
-func decodeFlush(d *Decoder) decoderStateFn {
-	if ok := d.nextLine(); !ok {
-		return nil
-	}
-
-	if len(d.line) != 0 {
-		d.err = fmt.Errorf("unexpected payload while expecting a flush-pkt: %q", d.line)
-	}
-
-	return nil
-}