DebTik/internal/cli/command.go

package cli

import (
	"fmt"
	"strings"
	"unicode"
)

// splitCommand supports quoted arguments without invoking a system shell.
// Backslashes outside quotes remain literal, preserving passwords and keys.
func splitCommand(input string) ([]string, error) {
	var args []string
	var word strings.Builder
	var quote rune
	started := false
	runes := []rune(input)
	for i := 0; i < len(runes); i++ {
		ch := runes[i]
		if quote != 0 {
			if ch == quote {
				quote = 0
			} else if ch == '\\' && quote == '"' && i+1 < len(runes) && (runes[i+1] == '"' || runes[i+1] == '\\') {
				i++
				word.WriteRune(runes[i])
			} else {
				word.WriteRune(ch)
			}
		} else if ch == '\'' || ch == '"' {
			quote = ch
			started = true
		} else if unicode.IsSpace(ch) {
			if started {
				args = append(args, word.String())
				word.Reset()
				started = false
			}
		} else {
			word.WriteRune(ch)
			started = true
		}
	}
	if quote != 0 {
		return nil, fmt.Errorf("unterminated quote")
	}
	if started {
		args = append(args, word.String())
	}
	return args, nil
}

// Existing command handlers mark failures red. Keep interactive rendering while
// supplying an exit status for SSH automation.
func commandExitStatus(output string) uint32 {
	if strings.HasPrefix(strings.TrimSpace(output), ColorRed) {
		return 1
	}
	return 0
}