cmd/devp2p: distinguish the jwt in devp2p and geth (#32972)

This PR fixes some docs for the devp2p suite and uses the CLI library's required value instead of manually checking if required flags are passed.

cmd/devp2p/README.md

@@ -121,7 +121,7 @@ with our test chain. The chain files are located in `./cmd/devp2p/internal/ethte
         --nat=none                     \
         --networkid 3503995874084926   \
         --verbosity 5                  \
-        --authrpc.jwtsecret 0x7365637265747365637265747365637265747365637265747365637265747365
+        --authrpc.jwtsecret jwt.secret
 
 Note that the tests also require access to the engine API.
 The test suite can now be executed using the devp2p tool.
@@ -130,7 +130,7 @@ The test suite can now be executed using the devp2p tool.
         --chain internal/ethtest/testdata   \
         --node enode://....                 \
         --engineapi http://127.0.0.1:8551   \
-        --jwtsecret 0x7365637265747365637265747365637265747365637265747365637265747365
+        --jwtsecret $(cat jwt.secret)
 
 Repeat the above process (re-initialising the node) in order to run the Eth Protocol test suite again.
 

cmd/devp2p/rlpxcmd.go

@@ -143,9 +143,6 @@ type testParams struct {
 
 func cliTestParams(ctx *cli.Context) *testParams {
 	nodeStr := ctx.String(testNodeFlag.Name)
-	if nodeStr == "" {
-		exit(fmt.Errorf("missing -%s", testNodeFlag.Name))
-	}
 	node, err := parseNode(nodeStr)
 	if err != nil {
 		exit(err)
@@ -156,14 +153,5 @@ func cliTestParams(ctx *cli.Context) *testParams {
 		jwt:       ctx.String(testNodeJWTFlag.Name),
 		chainDir:  ctx.String(testChainDirFlag.Name),
 	}
-	if p.engineAPI == "" {
-		exit(fmt.Errorf("missing -%s", testNodeEngineFlag.Name))
-	}
-	if p.jwt == "" {
-		exit(fmt.Errorf("missing -%s", testNodeJWTFlag.Name))
-	}
-	if p.chainDir == "" {
-		exit(fmt.Errorf("missing -%s", testChainDirFlag.Name))
-	}
 	return &p
 }

cmd/devp2p/runtest.go

@@ -39,26 +39,29 @@ var (
 	}
 
 	// for eth/snap tests
-	testChainDirFlag = &cli.StringFlag{
+	testChainDirFlag = &cli.PathFlag{
 		Name:     "chain",
 		Usage:    "Test chain directory (required)",
 		Category: flags.TestingCategory,
+		Required: true,
 	}
 	testNodeFlag = &cli.StringFlag{
 		Name:     "node",
 		Usage:    "Peer-to-Peer endpoint (ENR) of the test node (required)",
 		Category: flags.TestingCategory,
+		Required: true,
 	}
 	testNodeJWTFlag = &cli.StringFlag{
 		Name:     "jwtsecret",
 		Usage:    "JWT secret for the engine API of the test node (required)",
 		Category: flags.TestingCategory,
-		Value:    "0x7365637265747365637265747365637265747365637265747365637265747365",
+		Required: true,
 	}
 	testNodeEngineFlag = &cli.StringFlag{
 		Name:     "engineapi",
 		Usage:    "Engine API endpoint of the test node (required)",
 		Category: flags.TestingCategory,
+		Required: true,
 	}
 
 	// These two are specific to the discovery tests.