feat: fallback to default config on error loading user conf

lua.go

@@ -10,6 +10,13 @@ import (
 	"github.com/yuin/gopher-lua"
 )
 
+var minimalconf = `
+ansikit = require 'ansikit'
+prompt(ansikit.text(
+		'{blue}%u {cyan}%d {green}∆{reset} '
+))
+`
+
 func LuaInit() {
 	l = lua.NewState()
 
@@ -56,7 +63,10 @@ func LuaInit() {
 	// Run config
 	err = l.DoFile(homedir + "/.hilbishrc.lua")
 	if err != nil {
-		panic(err)
+		fmt.Fprintln(os.Stderr, err,
+		"An error has occured while loading your config! Falling back to minimal default config.\n")
+
+		l.DoString(minimalconf)
 	}
 }
 

main.go

@@ -7,6 +7,7 @@ import (
 	"syscall"
 	"os/signal"
 	"strings"
+	"bufio"
 	"io"
 	hooks "hilbish/golibs/bait"
 
@@ -86,7 +87,7 @@ func main() {
 	readline.LoadHistory(homedir + "/.hilbish-history")
 
 	for {
-		cmdString, err := readline.String(fmtPrompt())
+		input, err := readline.String(fmtPrompt())
 		if err == io.EOF {
 			// Exit if user presses ^D (ctrl + d)
 			fmt.Println("")
@@ -97,10 +98,34 @@ func main() {
 			fmt.Fprintln(os.Stderr, err)
 		}
 
-		// I have no idea if we need this anymore
+		input = strings.TrimSpace(input)
-		cmdString = strings.TrimSuffix(cmdString, "\n")
+		if len(input) == 0 { continue }
-		RunInput(cmdString)
+
+		if strings.HasSuffix(input, "\\") {
+			for {
+				input, err = ContinuePrompt(strings.TrimSuffix(input, "\\"))
+
+				if err != nil || !strings.HasSuffix(input, "\\") { break }
 			}
+		}
+		RunInput(input)
+	}
+}
+
+func ContinuePrompt(prev string) (string, error) {
+	fmt.Printf("> ")
+
+	reader := bufio.NewReader(os.Stdin)
+
+	// TODO: use readline here?
+	cont, err := reader.ReadString('\n')
+	if err != nil {
+		fmt.Println("")
+		return "", err
+	}
+	cont = strings.TrimSpace(cont)
+
+	return prev + "\n" + strings.TrimSuffix(cont, "\n"), nil
 }
 
 // This semi cursed function formats our prompt (obviously)

shell.go

@@ -9,8 +9,8 @@ import (
 	"strings"
 
 	"github.com/bobappleyard/readline"
-	_ "github.com/yuin/gopher-lua"
+	"github.com/yuin/gopher-lua"
-	_ "layeh.com/gopher-luar"
+	"layeh.com/gopher-luar"
 	"mvdan.cc/sh/v3/interp"
 	"mvdan.cc/sh/v3/syntax"
 
@@ -18,27 +18,76 @@ import (
 
 func RunInput(input string) {
 	// First try to run user input in Lua
-	if strings.HasSuffix(input, "\\") {
-		for {
-			input = strings.TrimSuffix(input, "\\")
-			input = ContinuePrompt(input)
-			input = strings.TrimSpace(input)
-			if input == "" { break }
-			// For some reason !HasSuffix didnt work :\, stupid
-			if !strings.HasSuffix(input, "\\") { break }
-		}
-	}
-
 	err := l.DoString(input)
 
 	if err == nil {
 		// If it succeeds, add to history and prompt again
-		//readline.AddHistory(input)
+		HandleHistory(input)
-		//readline.SaveHistory(homedir + "/.hilbish-history")
+
-		bait.Em.Emit("command.exit", nil)
+		bait.Em.Emit("command.exit", 0)
-		bait.Em.Emit("command.success", nil)
 		return
 	}
+
+	cmdArgs, cmdString := splitInput(input)
+
+	// If alias was found, use command alias
+	if aliases[cmdArgs[0]] != "" {
+		cmdString = aliases[cmdArgs[0]] + strings.Trim(cmdString, cmdArgs[0])
+	}
+
+	// If command is defined in Lua then run it
+	if commands[cmdArgs[0]] {
+		err := l.CallByParam(lua.P{
+			Fn: l.GetField(
+				l.GetTable(
+					l.GetGlobal("commanding"),
+					lua.LString("__commands")),
+				cmdArgs[0]),
+			NRet: 0,
+			Protect: true,
+		}, luar.New(l, cmdArgs[1:]))
+		if err != nil {
+			// TODO: dont panic
+			panic(err)
+		}
+		HandleHistory(cmdString)
+		return
+	}
+
+	// Last option: use sh interpreter
+	switch cmdArgs[0] {
+	case "exit":
+		os.Exit(0)
+	default:
+		err := execCommand(cmdString)
+		if err != nil {
+			// If input is incomplete, start multiline prompting
+			if syntax.IsIncomplete(err) {
+				for {
+					cmdString, err = ContinuePrompt(strings.TrimSuffix(cmdString, "\\"))
+					if err != nil { break }
+					err = execCommand(cmdString)
+
+					if syntax.IsIncomplete(err) || strings.HasSuffix(input, "\\") {
+						continue
+					} else if code, ok := interp.IsExitStatus(err); ok {
+						bait.Em.Emit("command.exit", code)
+					} else if err != nil {
+						fmt.Fprintln(os.Stderr, err)
+						bait.Em.Emit("command.exit", 1)
+					}
+					break
+				}
+			} else {
+				if code, ok := interp.IsExitStatus(err); ok {
+					bait.Em.Emit("command.exit", code)
+				} else { fmt.Fprintln(os.Stderr, err) }
+			}
+		} else {
+			bait.Em.Emit("command.exit", 0)
+		}
+		HandleHistory(cmdString)
+	}
 }
 
 // Run command in sh interpreter
@@ -105,24 +154,13 @@ func splitInput(input string) ([]string, string) {
 		cmdArgs = append(cmdArgs, sb.String())
 	}
 
-	readline.AddHistory(input)
-	readline.SaveHistory(homedir + "/.hilbish-history")
 	return cmdArgs, cmdstr.String()
 }
 
-func ContinuePrompt(prev string) string {
+func HandleHistory(cmd string) {
-	fmt.Printf("... ")
+	readline.AddHistory(cmd)
-
+	readline.SaveHistory(homedir + "/.hilbish-history")
-	reader := bufio.NewReader(os.Stdin)
+	// TODO: load history again (history shared between sessions like this ye)
-
-	cont, err := reader.ReadString('\n')
-	if err == io.EOF {
-		// Exit when ^D
-		fmt.Println("")
-		return ""
-	}
-
-	return prev + "\n" + cont
 }
 
 func StartMultiline(prev string, sb *strings.Builder) bool {
@@ -130,7 +168,7 @@ func StartMultiline(prev string, sb *strings.Builder) bool {
 	// save input from previous prompts
 	if sb.String() == "" { sb.WriteString(prev + "\n") }
 
-	fmt.Printf("... ")
+	fmt.Printf("sh> ")
 
 	reader := bufio.NewReader(os.Stdin)