chore(pb): regenerate protobufs and add a makefile

internal/pb/Makefile

+PB = $(wildcard *.proto)
+GO = $(PB:.proto=.pb.go)
+
+all: $(GO)
+
+%.pb.go: %.proto
+		protoc --proto_path=$(GOPATH)/src:. --gogofaster_out=. $<
+
+clean:
+		rm -f *.pb.go
+		rm -f *.go

internal/pb/header.pb.go

 // Code generated by protoc-gen-gogo. DO NOT EDIT.
-// source: pin/internal/pb/header.proto
+// source: header.proto
 
 package pb
 
@@ -9,6 +9,7 @@ import (
 	proto "github.com/gogo/protobuf/proto"
 	io "io"
 	math "math"
+	math_bits "math/bits"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -20,7 +21,7 @@ var _ = math.Inf
 // is compatible with the proto package it is being compiled against.
 // A compilation error at this line likely means your copy of the
 // proto package needs to be updated.
-const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 type Set struct {
 	// 1 for now, library will refuse to handle entries with an unrecognized version.
@@ -35,7 +36,7 @@ func (m *Set) Reset()         { *m = Set{} }
 func (m *Set) String() string { return proto.CompactTextString(m) }
 func (*Set) ProtoMessage()    {}
 func (*Set) Descriptor() ([]byte, []int) {
-	return fileDescriptor_cda303a5a3ed87e7, []int{0}
+	return fileDescriptor_6398613e36d6c2ce, []int{0}
 }
 func (m *Set) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -45,7 +46,7 @@ func (m *Set) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 		return xxx_messageInfo_Set.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -89,12 +90,11 @@ func init() {
 	proto.RegisterType((*Set)(nil), "ipfs.pin.Set")
 }
 
-func init() { proto.RegisterFile("pin/internal/pb/header.proto", fileDescriptor_cda303a5a3ed87e7) }
+func init() { proto.RegisterFile("header.proto", fileDescriptor_6398613e36d6c2ce) }
 
-var fileDescriptor_cda303a5a3ed87e7 = []byte{
-	// 162 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x29, 0xc8, 0xcc, 0xd3,
-	0xcf, 0xcc, 0x2b, 0x49, 0x2d, 0xca, 0x4b, 0xcc, 0xd1, 0x2f, 0x48, 0xd2, 0xcf, 0x48, 0x4d, 0x4c,
+var fileDescriptor_6398613e36d6c2ce = []byte{
+	// 146 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0xc9, 0x48, 0x4d, 0x4c,
 	0x49, 0x2d, 0xd2, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0xc8, 0x2c, 0x48, 0x2b, 0xd6, 0x2b,
 	0xc8, 0xcc, 0x53, 0x8a, 0xe5, 0x62, 0x0e, 0x4e, 0x2d, 0x11, 0x92, 0xe3, 0x62, 0x2f, 0x4b, 0x2d,
 	0x2a, 0xce, 0xcc, 0xcf, 0x93, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x75, 0x62, 0x39, 0x71, 0x4f, 0x9e,
@@ -102,14 +102,14 @@ var fileDescriptor_cda303a5a3ed87e7 = []byte{
 	0x24, 0x0d, 0x15, 0x13, 0x92, 0xe0, 0x62, 0x29, 0x4e, 0x4d, 0x4d, 0x91, 0x60, 0x56, 0x60, 0xd4,
 	0x60, 0x87, 0xca, 0x81, 0x45, 0x9c, 0x64, 0x4e, 0x3c, 0x92, 0x63, 0xbc, 0xf0, 0x48, 0x8e, 0xf1,
 	0xc1, 0x23, 0x39, 0xc6, 0x09, 0x8f, 0xe5, 0x18, 0x2e, 0x3c, 0x96, 0x63, 0xb8, 0xf1, 0x58, 0x8e,
-	0x21, 0x8a, 0xa9, 0x20, 0x09, 0x10, 0x00, 0x00, 0xff, 0xff, 0x20, 0x85, 0x2f, 0x24, 0xa5, 0x00,
+	0x21, 0x8a, 0xa9, 0x20, 0x09, 0x10, 0x00, 0x00, 0xff, 0xff, 0x3c, 0x49, 0x19, 0x51, 0x95, 0x00,
 	0x00, 0x00,
 }
 
 func (m *Set) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -117,31 +117,38 @@ func (m *Set) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *Set) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Set) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	dAtA[i] = 0x8
-	i++
-	i = encodeVarintHeader(dAtA, i, uint64(m.Version))
-	dAtA[i] = 0x10
-	i++
-	i = encodeVarintHeader(dAtA, i, uint64(m.Fanout))
-	dAtA[i] = 0x1d
-	i++
+	i -= 4
 	encoding_binary.LittleEndian.PutUint32(dAtA[i:], uint32(m.Seed))
-	i += 4
-	return i, nil
+	i--
+	dAtA[i] = 0x1d
+	i = encodeVarintHeader(dAtA, i, uint64(m.Fanout))
+	i--
+	dAtA[i] = 0x10
+	i = encodeVarintHeader(dAtA, i, uint64(m.Version))
+	i--
+	dAtA[i] = 0x8
+	return len(dAtA) - i, nil
 }
 
 func encodeVarintHeader(dAtA []byte, offset int, v uint64) int {
+	offset -= sovHeader(v)
+	base := offset
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
 		v >>= 7
 		offset++
 	}
 	dAtA[offset] = uint8(v)
-	return offset + 1
+	return base
 }
 func (m *Set) Size() (n int) {
 	if m == nil {
@@ -156,14 +163,7 @@ func (m *Set) Size() (n int) {
 }
 
 func sovHeader(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
+	return (math_bits.Len64(x|1) + 6) / 7
 }
 func sozHeader(x uint64) (n int) {
 	return sovHeader(uint64((x << 1) ^ uint64((int64(x) >> 63))))
@@ -272,6 +272,7 @@ func (m *Set) Unmarshal(dAtA []byte) error {
 func skipHeader(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
+	depth := 0
 	for iNdEx < l {
 		var wire uint64
 		for shift := uint(0); ; shift += 7 {
@@ -303,10 +304,8 @@ func skipHeader(dAtA []byte) (n int, err error) {
 					break
 				}
 			}
-			return iNdEx, nil
 		case 1:
 			iNdEx += 8
-			return iNdEx, nil
 		case 2:
 			var length int
 			for shift := uint(0); ; shift += 7 {
@@ -327,55 +326,30 @@ func skipHeader(dAtA []byte) (n int, err error) {
 				return 0, ErrInvalidLengthHeader
 			}
 			iNdEx += length
-			if iNdEx < 0 {
-				return 0, ErrInvalidLengthHeader
-			}
-			return iNdEx, nil
 		case 3:
-			for {
-				var innerWire uint64
-				var start int = iNdEx
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return 0, ErrIntOverflowHeader
-					}
-					if iNdEx >= l {
-						return 0, io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					innerWire |= (uint64(b) & 0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				innerWireType := int(innerWire & 0x7)
-				if innerWireType == 4 {
-					break
-				}
-				next, err := skipHeader(dAtA[start:])
-				if err != nil {
-					return 0, err
-				}
-				iNdEx = start + next
-				if iNdEx < 0 {
-					return 0, ErrInvalidLengthHeader
-				}
-			}
-			return iNdEx, nil
+			depth++
 		case 4:
-			return iNdEx, nil
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupHeader
+			}
+			depth--
 		case 5:
 			iNdEx += 4
-			return iNdEx, nil
 		default:
 			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
 		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthHeader
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
 	}
-	panic("unreachable")
+	return 0, io.ErrUnexpectedEOF
 }
 
 var (
-	ErrInvalidLengthHeader = fmt.Errorf("proto: negative length found during unmarshaling")
-	ErrIntOverflowHeader   = fmt.Errorf("proto: integer overflow")
+	ErrInvalidLengthHeader        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowHeader          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupHeader = fmt.Errorf("proto: unexpected end of group")
 )