Add bt alias for stack, quit and q for exit

Fixes #182

terminal/command.go

@@ -41,6 +41,8 @@ type Commands struct {
 	client  service.Client
 }
 
+var exitAliases = []string{"exit", "quit", "q"}
+
 // Returns a Commands struct with default commands defined.
 func DebugCommands(client service.Client) *Commands {
 	c := &Commands{client: client}
@@ -61,13 +63,22 @@ func DebugCommands(client service.Client) *Commands {
 		{aliases: []string{"breakpoints", "bp"}, cmdFn: breakpoints, helpMsg: "Print out info for active breakpoints."},
 		{aliases: []string{"print", "p"}, cmdFn: printVar, helpMsg: "Evaluate a variable."},
 		{aliases: []string{"info"}, cmdFn: info, helpMsg: "Subcommands: args, funcs, locals, sources, vars, or regs."},
-		{aliases: []string{"exit"}, cmdFn: nullCommand, helpMsg: "Exit the debugger."},
-		{aliases: []string{"stack"}, cmdFn: stackCommand, helpMsg: "stack [<depth> [<goroutine id>]]. Prints stack."},
+		{aliases: exitAliases, cmdFn: nullCommand, helpMsg: "Exit the debugger."},
+		{aliases: []string{"stack", "bt"}, cmdFn: stackCommand, helpMsg: "stack [<depth> [<goroutine id>]]. Prints stack."},
 	}
 
 	return c
 }
 
+func isExitCommand(cmdstr string) bool {
+	for _, a := range exitAliases {
+		if a == cmdstr {
+			return true
+		}
+	}
+	return false
+}
+
 // Register custom commands. Expects cf to be a func of type cmdfunc,
 // returning only an error.
 func (c *Commands) Register(cmdstr string, cf cmdfunc, helpMsg string) {

terminal/terminal.go

@@ -84,7 +84,7 @@ func (t *Term) Run() (error, int) {
 		}
 
 		cmdstr, args := parseCommand(cmdstr)
-		if cmdstr == "exit" {
+		if isExitCommand(cmdstr) {
 			err, status = handleExit(t.client, t)
 			break
 		}