cmd/network: Extract absolute path of local endpoint in add-local

Author: abukosek

cmd/network/add.go

@@ -2,6 +2,8 @@ package network
 
 import (
 	"context"
+	"os"
+	"strings"
 
 	"github.com/spf13/cobra"
 
@@ -22,6 +24,21 @@ var addCmd = &cobra.Command{
 		// Validate initial network configuration early.
 		cobra.CheckErr(config.ValidateIdentifier(name))
 
+		isLocal := strings.HasPrefix(rpc, "unix:")
+		if !isLocal {
+			// Check if a local file name was given without protocol.
+			if info, err := os.Stat(rpc); err == nil {
+				isLocal = !info.IsDir()
+				if isLocal {
+					rpc = "unix:" + rpc
+				}
+			}
+		}
+		if isLocal {
+			AddLocalNetwork(name, rpc)
+			return
+		}
+
 		net := config.Network{
 			RPC: rpc,
 		}

cmd/network/add_local.go

@@ -3,6 +3,10 @@ package network
 import (
 	"context"
 	"fmt"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
 
 	"github.com/spf13/cobra"
 	flag "github.com/spf13/pflag"
@@ -25,72 +29,98 @@ var (
 		Short: "Add a new local network",
 		Args:  cobra.ExactArgs(2),
 		Run: func(_ *cobra.Command, args []string) {
-			cfg := cliConfig.Global()
 			name, rpc := args[0], args[1]
 
-			net := config.Network{
-				RPC: rpc,
-			}
 			// Validate initial network configuration early.
 			cobra.CheckErr(config.ValidateIdentifier(name))
-			if !cmnGrpc.IsLocalAddress(net.RPC) {
-				cobra.CheckErr(fmt.Errorf("rpc-endpoint '%s' is not local", rpc))
-			}
-
-			// Connect to the network and query the chain context.
-			ctx := context.Background()
-			conn, err := connection.ConnectNoVerify(ctx, &net)
-			cobra.CheckErr(err)
-
-			chainContext, err := conn.Consensus().GetChainContext(ctx)
-			cobra.CheckErr(err)
-			net.ChainContext = chainContext
-			cobra.CheckErr(net.Validate())
-
-			// With a very high probability, the user is going to be
-			// adding a local endpoint for an existing network, so try
-			// to clone config details from any of the hardcoded
-			// defaults.
-			var clonedDefault bool
-			for _, defaultNet := range config.DefaultNetworks.All {
-				if defaultNet.ChainContext != chainContext {
-					continue
-				}
-
-				// Yep.
-				net.Denomination = defaultNet.Denomination
-				net.ParaTimes = defaultNet.ParaTimes
-				clonedDefault = true
-				break
-			}
-
-			if symbol != "" {
-				net.Denomination.Symbol = symbol
-			}
-
-			if numDecimals != 0 {
-				net.Denomination.Decimals = uint8(numDecimals)
-			}
-
-			if description != "" {
-				net.Description = description
-			}
-
-			// If we failed to crib details from a hardcoded config,
-			// and user did not set -y flag ask the user.
-			if !clonedDefault && !common.GetAnswerYes() {
-				networkDetailsFromSurvey(&net)
-			}
-
-			err = cfg.Networks.Add(name, &net)
-			cobra.CheckErr(err)
-
-			err = cfg.Save()
-			cobra.CheckErr(err)
+
+			AddLocalNetwork(name, rpc)
 		},
 	}
 )
 
+func AddLocalNetwork(name string, rpc string) {
+	cfg := cliConfig.Global()
+
+	net := config.Network{
+		RPC: rpc,
+	}
+
+	if !cmnGrpc.IsLocalAddress(net.RPC) {
+		cobra.CheckErr(fmt.Errorf("rpc-endpoint '%s' is not local", net.RPC))
+	}
+
+	// Extract absolute path for given local endpoint.
+	parsedRPC, err := url.Parse(net.RPC)
+	if err != nil {
+		cobra.CheckErr(fmt.Errorf("malformed RPC endpoint: %w", err))
+	}
+	if strings.HasPrefix(parsedRPC.Opaque, "~/") {
+		// Expand to user's home directory.
+		home, grr := os.UserHomeDir()
+		if grr != nil {
+			cobra.CheckErr(fmt.Errorf("unable to get user's home directory: %w", grr))
+		}
+		parsedRPC.Opaque = filepath.Join(home, parsedRPC.Opaque[2:])
+	}
+	parsedRPC.Opaque, err = filepath.Abs(parsedRPC.Opaque)
+	if err != nil {
+		cobra.CheckErr(fmt.Errorf("malformed path in RPC endpoint: %w", err))
+	}
+	net.RPC = parsedRPC.String()
+
+	// Connect to the network and query the chain context.
+	ctx := context.Background()
+	conn, err := connection.ConnectNoVerify(ctx, &net)
+	cobra.CheckErr(err)
+
+	chainContext, err := conn.Consensus().GetChainContext(ctx)
+	cobra.CheckErr(err)
+	net.ChainContext = chainContext
+	cobra.CheckErr(net.Validate())
+
+	// With a very high probability, the user is going to be
+	// adding a local endpoint for an existing network, so try
+	// to clone config details from any of the hardcoded
+	// defaults.
+	var clonedDefault bool
+	for _, defaultNet := range config.DefaultNetworks.All {
+		if defaultNet.ChainContext != chainContext {
+			continue
+		}
+
+		// Yep.
+		net.Denomination = defaultNet.Denomination
+		net.ParaTimes = defaultNet.ParaTimes
+		clonedDefault = true
+		break
+	}
+
+	if symbol != "" {
+		net.Denomination.Symbol = symbol
+	}
+
+	if numDecimals != 0 {
+		net.Denomination.Decimals = uint8(numDecimals)
+	}
+
+	if description != "" {
+		net.Description = description
+	}
+
+	// If we failed to crib details from a hardcoded config,
+	// and user did not set -y flag ask the user.
+	if !clonedDefault && !common.GetAnswerYes() {
+		networkDetailsFromSurvey(&net)
+	}
+
+	err = cfg.Networks.Add(name, &net)
+	cobra.CheckErr(err)
+
+	err = cfg.Save()
+	cobra.CheckErr(err)
+}
+
 func init() {
 	addLocalCmd.Flags().AddFlagSet(common.AnswerYesFlag)