feat(cmd/paratime/denom): Add cmd denomination add

cmd/paratime/denom/add.go

@@ -0,0 +1,49 @@
+package denom
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/spf13/cobra"
+
+	"github.com/oasisprotocol/oasis-sdk/client-sdk/go/config"
+
+	cliConfig "github.com/oasisprotocol/cli/config"
+)
+
+var addDenomCmd = &cobra.Command{
+	Use:   "add <network> <paratime> <denomination> <number_of_decimals>",
+	Short: "Add a new denomination",
+	Args:  cobra.ExactArgs(4),
+	Run: func(cmd *cobra.Command, args []string) {
+		cfg := cliConfig.Global()
+		networkArg, ptArg, symbolArg, decimalsArg := args[0], args[1], args[2], args[3]
+
+		decimalsInt, err := strconv.Atoi(decimalsArg)
+		if err != nil {
+			cobra.CheckErr(fmt.Errorf("number of decimals '%s' can not be converted to integer", decimalsArg))
+			return
+		}
+
+		net := cfg.Networks.All[networkArg]
+		if net == nil {
+			cobra.CheckErr(fmt.Errorf("network '%s' does not exist", networkArg))
+			return
+		}
+
+		pt := net.ParaTimes.All[ptArg]
+		if pt == nil {
+			cobra.CheckErr(fmt.Errorf("pratime '%s' does not exist", ptArg))
+			return
+		}
+
+		denomInfo := &config.DenominationInfo{
+			Symbol:   symbolArg,
+			Decimals: uint8(decimalsInt),
+		}
+		pt.Denominations[symbolArg] = denomInfo
+
+		err = cfg.Save()
+		cobra.CheckErr(err)
+	},
+}

cmd/paratime/denom/denom.go

@@ -0,0 +1,15 @@
+package denom
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var Cmd = &cobra.Command{
+	Use:     "denom",
+	Short:   "Denomination operations",
+	Aliases: []string{"denom"},
+}
+
+func init() {
+	Cmd.AddCommand(addDenomCmd)
+}

cmd/paratime/paratime.go

@@ -2,6 +2,8 @@ package paratime
 
 import (
 	"github.com/spf13/cobra"
+
+	"github.com/oasisprotocol/cli/cmd/paratime/denom"
 )
 
 var Cmd = &cobra.Command{
@@ -18,4 +20,5 @@ func init() {
 	Cmd.AddCommand(setDefaultCmd)
 	Cmd.AddCommand(showCmd)
 	Cmd.AddCommand(statsCmd)
+	Cmd.AddCommand(denom.Cmd)
 }

docs/paratime.md

@@ -140,6 +140,13 @@ encrypted:
 
 ![code](../examples/paratime-show/show-tx-encrypted.out.static)
 
+## Add denominations {#denom-add}
+
+To add denomination on the specific network and paratime use
+`paratime denom add <network> <paratime> <denomination> <number_of_decimals>`.
+
+![code shell](../examples/paratime-denom/00-denom-add.in)
+
 ## Advanced
 
 ### Register a New ParaTime {#register}

examples/paratime-denom/00-denom-add.in

@@ -0,0 +1 @@
+oasis paratime denom add mainnet sapphire TEST 16