R4R: gaiakeyutil -> gaiacli keys parse

.pending/breaking/gaiacli/4228-merge-gaiakeyutil-into-gaiacli

@@ -0,0 +1,2 @@
+#4228 Merge gaiakeyutil functionality into gaiacli keys.
+In fact, drop `gaiakeyutil` in favor of new `gaiacli keys parse` command. Syntax and semantic are preserved.

Makefile

@@ -81,7 +81,6 @@ else
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiad ./cmd/gaia/cmd/gaiad
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiacli ./cmd/gaia/cmd/gaiacli
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiareplay ./cmd/gaia/cmd/gaiareplay
-	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiakeyutil ./cmd/gaia/cmd/gaiakeyutil
 endif
 
 build-linux: go.sum
@@ -94,7 +93,6 @@ install: go.sum check-ledger update_gaia_lite_docs
 	go install -mod=readonly $(BUILD_FLAGS) ./cmd/gaia/cmd/gaiad
 	go install -mod=readonly $(BUILD_FLAGS) ./cmd/gaia/cmd/gaiacli
 	go install -mod=readonly $(BUILD_FLAGS) ./cmd/gaia/cmd/gaiareplay
-	go install -mod=readonly $(BUILD_FLAGS) ./cmd/gaia/cmd/gaiakeyutil
 
 install_debug: go.sum
 	go install -mod=readonly $(BUILD_FLAGS) ./cmd/gaia/cmd/gaiadebug

client/keys/parse.go

@@ -0,0 +1,72 @@
+package keys
+
+import (
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/tendermint/tendermint/libs/bech32"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+var bech32Prefixes = []string{
+	sdk.Bech32PrefixAccAddr,
+	sdk.Bech32PrefixAccPub,
+	sdk.Bech32PrefixValAddr,
+	sdk.Bech32PrefixValPub,
+	sdk.Bech32PrefixConsAddr,
+	sdk.Bech32PrefixConsPub,
+}
+
+func parseKeyStringCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:   "parse <hex-or-bech32-address>",
+		Short: "Parse key hex or bech32 strings and show relevant information",
+		Long: `Convert and print to stdout key addresses and fingerprints from
+hexadecimal into bech32 cosmos prefixed format and vice versa.
+`,
+		Args: cobra.ExactArgs(1),
+		RunE: parseKey,
+	}
+}
+
+func parseKey(_ *cobra.Command, args []string) error {
+	addr := strings.TrimSpace(args[0])
+	if len(addr) == 0 {
+		return errors.New("couldn't parse empty input")
+	}
+	if !(runFromBech32(addr) || runFromHex(addr)) {
+		return errors.New("couldn't find valid bech32 nor hex data")
+	}
+	return nil
+}
+
+// print info from bech32
+func runFromBech32(bech32str string) bool {
+	hrp, bz, err := bech32.DecodeAndConvert(bech32str)
+	if err != nil {
+		return false
+	}
+	fmt.Printf("Human readable part: %v\nBytes (hex): %X\n", hrp, bz)
+	return true
+}
+
+// print info from hex
+func runFromHex(hexstr string) bool {
+	bz, err := hex.DecodeString(hexstr)
+	if err != nil {
+		return false
+	}
+	fmt.Println("Bech32 formats:")
+	for _, prefix := range bech32Prefixes {
+		bech32Addr, err := bech32.ConvertAndEncode(prefix, bz)
+		if err != nil {
+			panic(err)
+		}
+		fmt.Println("  - " + bech32Addr)
+	}
+	return true
+}

client/keys/parse_test.go

@@ -0,0 +1,28 @@
+package keys
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseKey(t *testing.T) {
+	bech32str := "cosmos104ytdpvrx9284zd50v9ep8c6j7pua7dkk0x3ek"
+	hexstr := "EB5AE9872103497EC092EF901027049E4F39200C60040D3562CD7F104A39F62E6E5A39A818F4"
+
+	tests := []struct {
+		name    string
+		args    []string
+		wantErr bool
+	}{
+		{"empty input", []string{""}, true},
+		{"invalid input", []string{"invalid"}, true},
+		{"bech32", []string{bech32str}, false},
+		{"hex", []string{hexstr}, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.wantErr, parseKey(nil, tt.args) != nil)
+		})
+	}
+}

client/keys/root.go

@@ -26,6 +26,7 @@ func Commands() *cobra.Command {
 		client.LineBreak,
 		deleteKeyCommand(),
 		updateKeyCommand(),
+		parseKeyStringCommand(),
 	)
 	return cmd
 }

client/keys/root_test.go

@@ -11,5 +11,5 @@ func TestCommands(t *testing.T) {
 	assert.NotNil(t, rootCommands)
 
 	// Commands are registered
-	assert.Equal(t, 7, len(rootCommands.Commands()))
+	assert.Equal(t, 8, len(rootCommands.Commands()))
 }

cmd/gaia/Makefile

@@ -72,7 +72,6 @@ else
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiad ../../cmd/gaia/cmd/gaiad
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiacli ../../cmd/gaia/cmd/gaiacli
 	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiareplay ../../cmd/gaia/cmd/gaiareplay
-	go build -mod=readonly $(BUILD_FLAGS) -o build/gaiakeyutil ../../cmd/gaia/cmd/gaiakeyutil
 endif
 
 build-linux: ../../go.sum
@@ -82,7 +81,6 @@ install: ../../go.sum check-ledger
 	go install -mod=readonly $(BUILD_FLAGS) ../../cmd/gaia/cmd/gaiad
 	go install -mod=readonly $(BUILD_FLAGS) ../../cmd/gaia/cmd/gaiacli
 	go install -mod=readonly $(BUILD_FLAGS) ../../cmd/gaia/cmd/gaiareplay
-	go install -mod=readonly $(BUILD_FLAGS) ../../cmd/gaia/cmd/gaiakeyutil
 
 install-debug: ../../go.sum
 	go install -mod=readonly $(BUILD_FLAGS) ../../cmd/gaia/cmd/gaiadebug