add signal interrupt to local network contexts

cmd/networkcmd/start.go

@@ -135,6 +135,7 @@ func Start(flags StartFlags, printEndpoints bool) error {
 		ctx, cancel := localnet.GetLocalNetworkDefaultContext()
 		defer cancel()
 		if _, err := localnet.TmpNetLoad(ctx, app.Log, networkDir, avalancheGoBinPath); err != nil {
+			_ = localnet.TmpNetStop(networkDir)
 			return err
 		}
 		// save network directory
@@ -211,7 +212,7 @@ func Start(flags StartFlags, printEndpoints bool) error {
 		// create network
 		ctx, cancel := localnet.GetLocalNetworkDefaultContext()
 		defer cancel()
-		_, err = localnet.TmpNetCreate(
+		if _, err := localnet.TmpNetCreate(
 			ctx,
 			app.Log,
 			networkDir,
@@ -225,8 +226,8 @@ func Start(flags StartFlags, printEndpoints bool) error {
 			defaultFlags,
 			nodes,
 			true,
-		)
-		if err != nil {
+		); err != nil {
+			_ = localnet.TmpNetStop(networkDir)
 			return err
 		}
 		// save network directory

pkg/localnet/helpers.go

@@ -3,6 +3,8 @@
 package localnet
 
 import (
+	"context"
+	"errors"
 	"fmt"
 	"os"
 
@@ -78,6 +80,19 @@ func TrackSubnet(
 		perNodeBlockchainConfig,
 		wallet,
 	); err != nil {
+		if errors.Is(err, context.DeadlineExceeded) {
+			printFunc("")
+			printFunc("A context timeout has occurred while trying to bootstrap the blockchain.")
+			printFunc("")
+			logPaths, _ := GetTmpNetAvailableLogs(networkDir, blockchainID, false)
+			if len(logPaths) != 0 {
+				printFunc("Please check this log files for more information on the error cause:")
+				for _, logPath := range logPaths {
+					printFunc("  " + logPath)
+				}
+				printFunc("")
+			}
+		}
 		return err
 	}
 	ux.Logger.GreenCheckmarkToUser("%s successfully tracking %s", networkModel.Name(), blockchainName)

pkg/localnet/tmpnet.go

@@ -1094,3 +1094,34 @@ func GetTmpNetNodeURIsWithFix(
 	}
 	return utils.Map(network.GetNodeURIs(), func(nodeURI tmpnet.NodeURI) string { return nodeURI.URI }), nil
 }
+
+// Get paths for most important avalanchego logs that are present on the network nodes
+func GetTmpNetAvailableLogs(
+	networkDir string,
+	blockchainID ids.ID,
+	includeCChain bool,
+) ([]string, error) {
+	network, err := GetTmpNetNetwork(networkDir)
+	if err != nil {
+		return nil, err
+	}
+	prefixes := []string{}
+	if blockchainID != ids.Empty {
+		prefixes = append(prefixes, blockchainID.String())
+	}
+	if includeCChain {
+		prefixes = append(prefixes, "C")
+	}
+	prefixes = append(prefixes, "P")
+	prefixes = append(prefixes, "main")
+	logPaths := []string{}
+	for _, node := range network.Nodes {
+		for _, prefix := range prefixes {
+			logPath := filepath.Join(networkDir, node.NodeID.String(), "logs", prefix+".log")
+			if utils.FileExists(logPath) {
+				logPaths = append(logPaths, utils.ReplaceUserHomeWithTilde(logPath))
+			}
+		}
+	}
+	return logPaths, nil
+}

pkg/utils/file.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/ava-labs/avalanche-cli/pkg/constants"
 	sdkutils "github.com/ava-labs/avalanche-cli/sdk/utils"
@@ -72,6 +73,15 @@ func ExpandHome(path string) string {
 	return path
 }
 
+// ReplaceUserHomeWithTilde replaces user home directory with ~
+func ReplaceUserHomeWithTilde(path string) string {
+	home, _ := os.UserHomeDir()
+	if strings.HasPrefix(path, home) {
+		path = "~" + strings.TrimPrefix(path, home)
+	}
+	return path
+}
+
 // FileCopy copies a file from src to dst.
 func FileCopy(src string, dst string) error {
 	if !FileExists(src) {

sdk/utils/utils.go

@@ -4,6 +4,8 @@ package utils
 
 import (
 	"context"
+	"os"
+	"os/signal"
 	"sort"
 	"time"
 
@@ -48,5 +50,6 @@ func GetAPILargeContext() (context.Context, context.CancelFunc) {
 
 // Timed Context
 func GetTimedContext(timeout time.Duration) (context.Context, context.CancelFunc) {
-	return context.WithTimeout(context.Background(), timeout)
+	parent, _ := signal.NotifyContext(context.Background(), os.Interrupt)
+	return context.WithTimeout(parent, timeout)
 }