Merge pull request #61 from ipfs/kevina/cid-fmt-enhan

cid-fmt Enhancments

cid-fmt/main.go

 package main
 
 import (
-	"bytes"
 	"fmt"
 	"os"
 	"strings"
@@ -9,38 +8,14 @@ import (
 	c "github.com/ipfs/go-cid"
 
 	mb "github.com/multiformats/go-multibase"
-	mh "github.com/multiformats/go-multihash"
 )
 
 func usage() {
 	fmt.Fprintf(os.Stderr, "usage: %s [-b multibase-code] [-v cid-version] <fmt-str> <cid> ...\n\n", os.Args[0])
-	fmt.Fprintf(os.Stderr, "<fmt-str> is either 'prefix' or a printf style format string:\n%s", fmtRef)
+	fmt.Fprintf(os.Stderr, "<fmt-str> is either 'prefix' or a printf style format string:\n%s", c.FormatRef)
 	os.Exit(2)
 }
 
-const fmtRef = `
-   %% literal %
-   %b multibase name 
-   %B multibase code
-   %v version string
-   %V version number
-   %c codec name
-   %C codec code
-   %h multihash name
-   %H multihash code
-   %L hash digest length
-   %m multihash encoded in base %b (with multibase prefix)
-   %M multihash encoded in base %b without multibase prefix
-   %d hash digest encoded in base %b (with multibase prefix)
-   %D hash digest encoded in base %b without multibase prefix
-   %s cid string encoded in base %b (1)
-   %s cid string encoded in base %b without multibase prefix
-   %P cid prefix: %v-%c-%h-%L
-
-(1) For CID version 0 the multibase must be base58btc and no prefix is
-used.  For Cid version 1 the multibase prefix is included.
-`
-
 func main() {
 	if len(os.Args) < 2 {
 		usage()
@@ -55,11 +30,12 @@ outer:
 			if len(args) < 2 {
 				usage()
 			}
-			if len(args[1]) != 1 {
-				fmt.Fprintf(os.Stderr, "Error: Invalid multibase code: %s\n", args[1])
+			encoder, err := mb.EncoderByName(args[1])
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Error: %s\n", err.Error())
 				os.Exit(2)
 			}
-			newBase = mb.Encoding(args[1][0])
+			newBase = encoder.Encoding()
 			args = args[2:]
 		case "-v":
 			if len(args) < 2 {
@@ -93,15 +69,16 @@ outer:
 		}
 	}
 	for _, cidStr := range args[1:] {
-		base, cid, err := decode(cidStr)
+		cid, err := c.Decode(cidStr)
 		if err != nil {
 			fmt.Fprintf(os.Stdout, "!INVALID_CID!\n")
 			errorMsg("%s: %v", cidStr, err)
 			// Don't abort on a bad cid
 			continue
 		}
-		if newBase != -1 {
-			base = newBase
+		base := newBase
+		if newBase == -1 {
+			base, _ = c.ExtractEncoding(cidStr)
 		}
 		if verConv != nil {
 			cid, err = verConv(cid)
@@ -112,11 +89,18 @@ outer:
 				continue
 			}
 		}
-		str, err := fmtCid(fmtStr, base, cid)
-		if err != nil {
+		str, err := c.Format(fmtStr, base, cid)
+		switch err.(type) {
+		case c.FormatStringError:
 			fmt.Fprintf(os.Stderr, "Error: %v\n", err)
-			// An error here means a bad format string, no point in continuing
 			os.Exit(2)
+		default:
+			fmt.Fprintf(os.Stdout, "!ERROR!\n")
+			errorMsg("%s: %v", cidStr, err)
+			// Don't abort on cid specific errors
+			continue
+		case nil:
+			// no error
 		}
 		fmt.Fprintf(os.Stdout, "%s\n", str)
 	}
@@ -132,139 +116,6 @@ func errorMsg(fmtStr string, a ...interface{}) {
 	exitCode = 1
 }
 
-func decode(v string) (mb.Encoding, *c.Cid, error) {
-	if len(v) < 2 {
-		return 0, nil, c.ErrCidTooShort
-	}
-
-	if len(v) == 46 && v[:2] == "Qm" {
-		hash, err := mh.FromB58String(v)
-		if err != nil {
-			return 0, nil, err
-		}
-
-		return mb.Base58BTC, c.NewCidV0(hash), nil
-	}
-
-	base, data, err := mb.Decode(v)
-	if err != nil {
-		return 0, nil, err
-	}
-
-	cid, err := c.Cast(data)
-
-	return base, cid, err
-}
-
-const ERR_STR = "!ERROR!"
-
-func fmtCid(fmtStr string, base mb.Encoding, cid *c.Cid) (string, error) {
-	p := cid.Prefix()
-	out := new(bytes.Buffer)
-	var err error
-	for i := 0; i < len(fmtStr); i++ {
-		if fmtStr[i] != '%' {
-			out.WriteByte(fmtStr[i])
-			continue
-		}
-		i++
-		if i >= len(fmtStr) {
-			return "", fmt.Errorf("premature end of format string")
-		}
-		switch fmtStr[i] {
-		case '%':
-			out.WriteByte('%')
-		case 'b': // base name
-			out.WriteString(baseToString(base))
-		case 'B': // base code
-			out.WriteByte(byte(base))
-		case 'v': // version string
-			fmt.Fprintf(out, "cidv%d", p.Version)
-		case 'V': // version num
-			fmt.Fprintf(out, "%d", p.Version)
-		case 'c': // codec name
-			out.WriteString(codecToString(p.Codec))
-		case 'C': // codec code
-			fmt.Fprintf(out, "%d", p.Codec)
-		case 'h': // hash fun name
-			out.WriteString(hashToString(p.MhType))
-		case 'H': // hash fun code
-			fmt.Fprintf(out, "%d", p.MhType)
-		case 'L': // hash length
-			fmt.Fprintf(out, "%d", p.MhLength)
-		case 'm', 'M': // multihash encoded in base %b
-			out.WriteString(encode(base, cid.Hash(), fmtStr[i] == 'M'))
-		case 'd', 'D': // hash digest encoded in base %b
-			dec, err := mh.Decode(cid.Hash())
-			if err != nil {
-				out.WriteString(ERR_STR)
-				errorMsg("%v", err)
-				continue
-			}
-			out.WriteString(encode(base, dec.Digest, fmtStr[i] == 'D'))
-		case 's': // cid string encoded in base %b
-			str, err := cid.StringOfBase(base)
-			if err != nil {
-				out.WriteString(ERR_STR)
-				errorMsg("%v", err)
-				continue
-			}
-			out.WriteString(str)
-		case 'S': // cid string without base prefix
-			out.WriteString(encode(base, cid.Bytes(), true))
-		case 'P': // prefix
-			fmt.Fprintf(out, "cidv%d-%s-%s-%d",
-				p.Version,
-				codecToString(p.Codec),
-				hashToString(p.MhType),
-				p.MhLength,
-			)
-		default:
-			return "", fmt.Errorf("unrecognized specifier in format string: %c", fmtStr[i])
-		}
-
-	}
-	return out.String(), err
-}
-
-func baseToString(base mb.Encoding) string {
-	// FIXME: Use lookup tables when they are added to go-multibase
-	switch base {
-	case mb.Base58BTC:
-		return "base58btc"
-	default:
-		return fmt.Sprintf("base?%c", base)
-	}
-}
-
-func codecToString(num uint64) string {
-	name, ok := c.CodecToStr[num]
-	if !ok {
-		return fmt.Sprintf("codec?%d", num)
-	}
-	return name
-}
-
-func hashToString(num uint64) string {
-	name, ok := mh.Codes[num]
-	if !ok {
-		return fmt.Sprintf("hash?%d", num)
-	}
-	return name
-}
-
-func encode(base mb.Encoding, data []byte, strip bool) string {
-	str, err := mb.Encode(base, data)
-	if err != nil {
-		errorMsg("%v", err)
-		return ERR_STR
-	}
-	if strip {
-		return str[1:]
-	}
-	return str
-}
-
 func toCidV0(cid *c.Cid) (*c.Cid, error) {
 	if cid.Type() != c.DagProtobuf {
 		return nil, fmt.Errorf("can't convert non-protobuf nodes to cidv0")

cid-fmt/main_test.go

@@ -4,77 +4,13 @@ import (
 	"fmt"
 	"testing"
 
-	mb "github.com/multiformats/go-multibase"
+	c "github.com/ipfs/go-cid"
 )
 
-func TestFmt(t *testing.T) {
-	cids := map[string]string{
-		"cidv0": "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn",
-		"cidv1": "zdj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD",
-	}
-	tests := []struct {
-		cidId   string
-		newBase mb.Encoding
-		fmtStr  string
-		result  string
-	}{
-		{"cidv0", -1, "%P", "cidv0-protobuf-sha2-256-32"},
-		{"cidv0", -1, "%b-%v-%c-%h-%L", "base58btc-cidv0-protobuf-sha2-256-32"},
-		{"cidv0", -1, "%s", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
-		{"cidv0", -1, "%S", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
-		{"cidv0", -1, "ver#%V/#%C/#%H/%L", "ver#0/#112/#18/32"},
-		{"cidv0", -1, "%m", "zQmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
-		{"cidv0", -1, "%M", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
-		{"cidv0", -1, "%d", "z72gdmFAgRzYHkJzKiL8MgMMRW3BTSCGyDHroPxJbxMJn"},
-		{"cidv0", -1, "%D", "72gdmFAgRzYHkJzKiL8MgMMRW3BTSCGyDHroPxJbxMJn"},
-		{"cidv0", 'B', "%S", "CIQFTFEEHEDF6KLBT32BFAGLXEZL4UWFNWM4LFTLMXQBCERZ6CMLX3Y"},
-		{"cidv0", 'B', "%B%S", "BCIQFTFEEHEDF6KLBT32BFAGLXEZL4UWFNWM4LFTLMXQBCERZ6CMLX3Y"},
-		{"cidv1", -1, "%P", "cidv1-protobuf-sha2-256-32"},
-		{"cidv1", -1, "%b-%v-%c-%h-%L", "base58btc-cidv1-protobuf-sha2-256-32"},
-		{"cidv1", -1, "%s", "zdj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD"},
-		{"cidv1", -1, "%S", "dj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD"},
-		{"cidv1", -1, "ver#%V/#%C/#%H/%L", "ver#1/#112/#18/32"},
-		{"cidv1", -1, "%m", "zQmYFbmndVP7QqAVWyKhpmMuQHMaD88pkK57RgYVimmoh5H"},
-		{"cidv1", -1, "%M", "QmYFbmndVP7QqAVWyKhpmMuQHMaD88pkK57RgYVimmoh5H"},
-		{"cidv1", -1, "%d", "zAux4gVVsLRMXtsZ9fd3tFEZN4jGYB6kP37fgoZNTc11H"},
-		{"cidv1", -1, "%D", "Aux4gVVsLRMXtsZ9fd3tFEZN4jGYB6kP37fgoZNTc11H"},
-		{"cidv1", 'B', "%s", "BAFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
-		{"cidv1", 'B', "%S", "AFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
-		{"cidv1", 'B', "%B%S", "BAFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
-	}
-	for _, tc := range tests {
-		name := fmt.Sprintf("%s/%s", tc.cidId, tc.fmtStr)
-		if tc.newBase != -1 {
-			name = fmt.Sprintf("%s/%c", name, tc.newBase)
-		}
-		cidStr := cids[tc.cidId]
-		t.Run(name, func(t *testing.T) {
-			testFmt(t, cidStr, tc.newBase, tc.fmtStr, tc.result)
-		})
-	}
-}
-
-func testFmt(t *testing.T, cidStr string, newBase mb.Encoding, fmtStr string, result string) {
-	base, cid, err := decode(cidStr)
-	if newBase != -1 {
-		base = newBase
-	}
-	if err != nil {
-		t.Fatal(err)
-	}
-	str, err := fmtCid(fmtStr, base, cid)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if str != result {
-		t.Error(fmt.Sprintf("expected: %s; but got: %s", result, str))
-	}
-}
-
 func TestCidConv(t *testing.T) {
 	cidv0 := "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"
 	cidv1 := "zdj7WbTaiJT1fgatdet9Ei9iDB5hdCxkbVyhyh8YTUnXMiwYi"
-	_, cid, err := decode(cidv0)
+	cid, err := c.Decode(cidv0)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -98,7 +34,7 @@ func TestCidConv(t *testing.T) {
 func TestBadCidConv(t *testing.T) {
 	// this cid is a raw leaf and should not be able to convert to cidv0
 	cidv1 := "zb2rhhzX7uSKrtQ2ZZXFAabKiKFYZrJqKY2KE1cJ8yre2GSWZ"
-	_, cid, err := decode(cidv1)
+	cid, err := c.Decode(cidv1)
 	if err != nil {
 		t.Fatal(err)
 	}

cid.go

@@ -213,6 +213,28 @@ func Decode(v string) (*Cid, error) {
 	return Cast(data)
 }
 
+// Extract the encoding from a Cid.  If Decode on the same string did
+// not return an error neither will this function.
+func ExtractEncoding(v string) (mbase.Encoding, error) {
+	if len(v) < 2 {
+		return -1, ErrCidTooShort
+	}
+
+	if len(v) == 46 && v[:2] == "Qm" {
+		return mbase.Base58BTC, nil
+	}
+
+	encoding := mbase.Encoding(v[0])
+
+	// check encoding is valid
+	_, err := mbase.NewEncoder(encoding)
+	if err != nil {
+		return -1, err
+	}
+
+	return encoding, nil
+}
+
 func uvError(read int) error {
 	switch {
 	case read == 0:

format.go

+package cid
+
+import (
+	"bytes"
+	"fmt"
+
+	mb "github.com/multiformats/go-multibase"
+	mh "github.com/multiformats/go-multihash"
+)
+
+// FormatRef is a string documenting the format string for the Format function
+const FormatRef = `
+   %% literal %
+   %b multibase name
+   %B multibase code
+   %v version string
+   %V version number
+   %c codec name
+   %C codec code
+   %h multihash name
+   %H multihash code
+   %L hash digest length
+   %m multihash encoded in base %b (with multibase prefix)
+   %M multihash encoded in base %b without multibase prefix
+   %d hash digest encoded in base %b (with multibase prefix)
+   %D hash digest encoded in base %b without multibase prefix
+   %s cid string encoded in base %b (1)
+   %S cid string encoded in base %b without multibase prefix
+   %P cid prefix: %v-%c-%h-%L
+
+(1) For CID version 0 the multibase must be base58btc and no prefix is
+used.  For Cid version 1 the multibase prefix is included.
+`
+
+// Format formats a cid according to the format specificer as
+// documented in the FormatRef constant
+func Format(fmtStr string, base mb.Encoding, cid *Cid) (string, error) {
+	p := cid.Prefix()
+	var out bytes.Buffer
+	var err error
+	encoder, err := mb.NewEncoder(base)
+	if err != nil {
+		return "", err
+	}
+	for i := 0; i < len(fmtStr); i++ {
+		if fmtStr[i] != '%' {
+			out.WriteByte(fmtStr[i])
+			continue
+		}
+		i++
+		if i >= len(fmtStr) {
+			return "", FormatStringError{"premature end of format string", ""}
+		}
+		switch fmtStr[i] {
+		case '%':
+			out.WriteByte('%')
+		case 'b': // base name
+			out.WriteString(baseToString(base))
+		case 'B': // base code
+			out.WriteByte(byte(base))
+		case 'v': // version string
+			fmt.Fprintf(&out, "cidv%d", p.Version)
+		case 'V': // version num
+			fmt.Fprintf(&out, "%d", p.Version)
+		case 'c': // codec name
+			out.WriteString(codecToString(p.Codec))
+		case 'C': // codec code
+			fmt.Fprintf(&out, "%d", p.Codec)
+		case 'h': // hash fun name
+			out.WriteString(hashToString(p.MhType))
+		case 'H': // hash fun code
+			fmt.Fprintf(&out, "%d", p.MhType)
+		case 'L': // hash length
+			fmt.Fprintf(&out, "%d", p.MhLength)
+		case 'm', 'M': // multihash encoded in base %b
+			out.WriteString(encode(encoder, cid.Hash(), fmtStr[i] == 'M'))
+		case 'd', 'D': // hash digest encoded in base %b
+			dec, err := mh.Decode(cid.Hash())
+			if err != nil {
+				return "", err
+			}
+			out.WriteString(encode(encoder, dec.Digest, fmtStr[i] == 'D'))
+		case 's': // cid string encoded in base %b
+			str, err := cid.StringOfBase(base)
+			if err != nil {
+				return "", err
+			}
+			out.WriteString(str)
+		case 'S': // cid string without base prefix
+			out.WriteString(encode(encoder, cid.Bytes(), true))
+		case 'P': // prefix
+			fmt.Fprintf(&out, "cidv%d-%s-%s-%d",
+				p.Version,
+				codecToString(p.Codec),
+				hashToString(p.MhType),
+				p.MhLength,
+			)
+		default:
+			return "", FormatStringError{"unrecognized specifier in format string", fmtStr[i-1 : i+1]}
+		}
+
+	}
+	return out.String(), err
+}
+
+// FormatStringError is the error return from Format when the format
+// string is ill formed
+type FormatStringError struct {
+	Message   string
+	Specifier string
+}
+
+func (e FormatStringError) Error() string {
+	if e.Specifier == "" {
+		return e.Message
+	} else {
+		return fmt.Sprintf("%s: %s", e.Message, e.Specifier)
+	}
+}
+
+func baseToString(base mb.Encoding) string {
+	baseStr, ok := mb.EncodingToStr[base]
+	if !ok {
+		return fmt.Sprintf("base?%c", base)
+	}
+	return baseStr
+}
+
+func codecToString(num uint64) string {
+	name, ok := CodecToStr[num]
+	if !ok {
+		return fmt.Sprintf("codec?%d", num)
+	}
+	return name
+}
+
+func hashToString(num uint64) string {
+	name, ok := mh.Codes[num]
+	if !ok {
+		return fmt.Sprintf("hash?%d", num)
+	}
+	return name
+}
+
+func encode(base mb.Encoder, data []byte, strip bool) string {
+	str := base.Encode(data)
+	if strip {
+		return str[1:]
+	}
+	return str
+}

format_test.go

+package cid
+
+import (
+	"fmt"
+	"testing"
+
+	mb "github.com/multiformats/go-multibase"
+)
+
+func TestFmt(t *testing.T) {
+	cids := map[string]string{
+		"cidv0": "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn",
+		"cidv1": "zdj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD",
+	}
+	tests := []struct {
+		cidId   string
+		newBase mb.Encoding
+		fmtStr  string
+		result  string
+	}{
+		{"cidv0", -1, "%P", "cidv0-protobuf-sha2-256-32"},
+		{"cidv0", -1, "%b-%v-%c-%h-%L", "base58btc-cidv0-protobuf-sha2-256-32"},
+		{"cidv0", -1, "%s", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
+		{"cidv0", -1, "%S", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
+		{"cidv0", -1, "ver#%V/#%C/#%H/%L", "ver#0/#112/#18/32"},
+		{"cidv0", -1, "%m", "zQmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
+		{"cidv0", -1, "%M", "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"},
+		{"cidv0", -1, "%d", "z72gdmFAgRzYHkJzKiL8MgMMRW3BTSCGyDHroPxJbxMJn"},
+		{"cidv0", -1, "%D", "72gdmFAgRzYHkJzKiL8MgMMRW3BTSCGyDHroPxJbxMJn"},
+		{"cidv0", 'B', "%S", "CIQFTFEEHEDF6KLBT32BFAGLXEZL4UWFNWM4LFTLMXQBCERZ6CMLX3Y"},
+		{"cidv0", 'B', "%B%S", "BCIQFTFEEHEDF6KLBT32BFAGLXEZL4UWFNWM4LFTLMXQBCERZ6CMLX3Y"},
+		{"cidv1", -1, "%P", "cidv1-protobuf-sha2-256-32"},
+		{"cidv1", -1, "%b-%v-%c-%h-%L", "base58btc-cidv1-protobuf-sha2-256-32"},
+		{"cidv1", -1, "%s", "zdj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD"},
+		{"cidv1", -1, "%S", "dj7WfLr9DhLrb1hsoSi4fSdjjxuZmeqgEtBPWxMLtPbDNbFD"},
+		{"cidv1", -1, "ver#%V/#%C/#%H/%L", "ver#1/#112/#18/32"},
+		{"cidv1", -1, "%m", "zQmYFbmndVP7QqAVWyKhpmMuQHMaD88pkK57RgYVimmoh5H"},
+		{"cidv1", -1, "%M", "QmYFbmndVP7QqAVWyKhpmMuQHMaD88pkK57RgYVimmoh5H"},
+		{"cidv1", -1, "%d", "zAux4gVVsLRMXtsZ9fd3tFEZN4jGYB6kP37fgoZNTc11H"},
+		{"cidv1", -1, "%D", "Aux4gVVsLRMXtsZ9fd3tFEZN4jGYB6kP37fgoZNTc11H"},
+		{"cidv1", 'B', "%s", "BAFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
+		{"cidv1", 'B', "%S", "AFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
+		{"cidv1", 'B', "%B%S", "BAFYBEIETJGSRL3EQPQPCABV3G6IUBYTSIFVQ24XRRHD3JUETSKLTGQ7DJA"},
+	}
+	for _, tc := range tests {
+		name := fmt.Sprintf("%s/%s", tc.cidId, tc.fmtStr)
+		if tc.newBase != -1 {
+			name = fmt.Sprintf("%s/%c", name, tc.newBase)
+		}
+		cidStr := cids[tc.cidId]
+		t.Run(name, func(t *testing.T) {
+			testFmt(t, cidStr, tc.newBase, tc.fmtStr, tc.result)
+		})
+	}
+}
+
+func testFmt(t *testing.T, cidStr string, newBase mb.Encoding, fmtStr string, result string) {
+	cid, err := Decode(cidStr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	base := newBase
+	if newBase == -1 {
+		base, _ = ExtractEncoding(cidStr)
+	}
+	str, err := Format(fmtStr, base, cid)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if str != result {
+		t.Error(fmt.Sprintf("expected: %s; but got: %s", result, str))
+	}
+}

package.json

@@ -15,9 +15,9 @@
     },
     {
       "author": "whyrusleeping",
-      "hash": "QmexBtiTTEwwn42Yi6ouKt6VqzpA6wjJgiW1oh9VfaRrup",
+      "hash": "QmSbvata2WqNkqGtZNg8MR3SKwnB8iQ7vTPJgWqB8bC5kR",
       "name": "go-multibase",
-      "version": "0.2.6"
+      "version": "0.2.7"
     }
   ],
   "gxVersion": "0.8.0",