swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints

Merge with changes that implement config file PR #15548.

Field *EnsApi string* in swarm/api.Config is replaced with
*EnsAPIs []string*.

A new field *EnsDisabled bool* is added to swarm/api.Config for
easy way to disable ENS resolving with config file.

Signature of function swarm.NewSwarm is changed and simplified.

3 files changed, 26 insertions, 3 deletions

diff --git a/console/console.go b/console/console.go
index 3cd2ad34b..1ecbfd0b0 100644
--- a/console/console.go
+++ b/console/console.go
@@ -47,7 +47,7 @@ const HistoryFile = "history"
 // DefaultPrompt is the default prompt line prefix to use for user input querying.
 const DefaultPrompt = "> "
 
-// Config is te collection of configurations to fine tune the behavior of the
+// Config is the collection of configurations to fine tune the behavior of the
 // JavaScript console.
 type Config struct {
 	DataDir  string       // Data directory to store the console history at
@@ -192,6 +192,7 @@ func (c *Console) init(preload []string) error {
 	if obj := admin.Object(); obj != nil { // make sure the admin api is enabled over the interface
 		obj.Set("sleepBlocks", bridge.SleepBlocks)
 		obj.Set("sleep", bridge.Sleep)
+		obj.Set("clearHistory", c.clearHistory)
 	}
 	// Preload any JavaScript files before starting the console
 	for _, path := range preload {
@@ -216,6 +217,16 @@ func (c *Console) init(preload []string) error {
 	return nil
 }
 
+func (c *Console) clearHistory() {
+	c.history = nil
+	c.prompter.ClearHistory()
+	if err := os.Remove(c.histPath); err != nil {
+		fmt.Fprintln(c.printer, "can't delete history file:", err)
+	} else {
+		fmt.Fprintln(c.printer, "history file deleted")
+	}
+}
+
 // consoleOutput is an override for the console.log and console.error methods to
 // stream the output into the configured output stream instead of stdout.
 func (c *Console) consoleOutput(call otto.FunctionCall) otto.Value {
@@ -238,7 +249,7 @@ func (c *Console) AutoCompleteInput(line string, pos int) (string, []string, str
 	// E.g. in case of nested lines eth.getBalance(eth.coinb<tab><tab>
 	start := pos - 1
 	for ; start > 0; start-- {
-		// Skip all methods and namespaces (i.e. including te dot)
+		// Skip all methods and namespaces (i.e. including the dot)
 		if line[start] == '.' || (line[start] >= 'a' && line[start] <= 'z') || (line[start] >= 'A' && line[start] <= 'Z') {
 			continue
 		}
diff --git a/console/console_test.go b/console/console_test.go
index a159b62bb..05aec2cc0 100644
--- a/console/console_test.go
+++ b/console/console_test.go
@@ -27,6 +27,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/internal/jsre"
@@ -67,6 +68,7 @@ func (p *hookedPrompter) PromptConfirm(prompt string) (bool, error) {
 }
 func (p *hookedPrompter) SetHistory(history []string)              {}
 func (p *hookedPrompter) AppendHistory(command string)             {}
+func (p *hookedPrompter) ClearHistory()                            {}
 func (p *hookedPrompter) SetWordCompleter(completer WordCompleter) {}
 
 // tester is a console test environment for the console tests to operate on.
@@ -96,7 +98,9 @@ func newTester(t *testing.T, confOverride func(*eth.Config)) *tester {
 	ethConf := &eth.Config{
 		Genesis:   core.DeveloperGenesisBlock(15, common.Address{}),
 		Etherbase: common.HexToAddress(testAddress),
-		PowTest:   true,
+		Ethash: ethash.Config{
+			PowMode: ethash.ModeTest,
+		},
 	}
 	if confOverride != nil {
 		confOverride(ethConf)
diff --git a/console/prompter.go b/console/prompter.go
index 6acbfb0e2..ea03694d4 100644
--- a/console/prompter.go
+++ b/console/prompter.go
@@ -51,6 +51,9 @@ type UserPrompter interface {
 	// if and only if the prompt to append was a valid command.
 	AppendHistory(command string)
 
+	// ClearHistory clears the entire history
+	ClearHistory()
+
 	// SetWordCompleter sets the completion function that the prompter will call to
 	// fetch completion candidates when the user presses tab.
 	SetWordCompleter(completer WordCompleter)
@@ -158,6 +161,11 @@ func (p *terminalPrompter) AppendHistory(command string) {
 	p.State.AppendHistory(command)
 }
 
+// ClearHistory clears the entire history
+func (p *terminalPrompter) ClearHistory() {
+	p.State.ClearHistory()
+}
+
 // SetWordCompleter sets the completion function that the prompter will call to
 // fetch completion candidates when the user presses tab.
 func (p *terminalPrompter) SetWordCompleter(completer WordCompleter) {