CLI help output make kitty.conf a clickable URL

tools/utils/paths.go

@@ -0,0 +1,87 @@
+package utils
+
+import (
+	"os"
+	"os/user"
+	"path/filepath"
+	"runtime"
+	"strings"
+)
+
+func Expanduser(path string) string {
+	if !strings.HasPrefix(path, "~") {
+		return path
+	}
+	home, err := os.UserHomeDir()
+	if err != nil {
+		usr, err := user.Current()
+		if err == nil {
+			home = usr.HomeDir
+		}
+	}
+	if err != nil || home == "" {
+		return path
+	}
+	if path == "~" {
+		return home
+	}
+	path = strings.ReplaceAll(path, string(os.PathSeparator), "/")
+	parts := strings.Split(path, "/")
+	if parts[0] == "~" {
+		parts[0] = home
+	} else {
+		uname := parts[0][1:]
+		if uname != "" {
+			u, err := user.Lookup(uname)
+			if err == nil && u.HomeDir != "" {
+				parts[0] = u.HomeDir
+			}
+		}
+	}
+	return strings.Join(parts, string(os.PathSeparator))
+}
+
+func Abspath(path string) string {
+	q, err := filepath.Abs(path)
+	if err == nil {
+		return q
+	}
+	return path
+}
+
+var config_dir string
+
+func ConfigDir() string {
+	if config_dir != "" {
+		return config_dir
+	}
+	if os.Getenv("KITTY_CONFIG_DIRECTORY") != "" {
+		config_dir = Abspath(Expanduser(os.Getenv("KITTY_CONFIG_DIRECTORY")))
+	} else {
+		var locations []string
+		if os.Getenv("XDG_CONFIG_HOME") != "" {
+			locations = append(locations, os.Getenv("XDG_CACHE_HOME"))
+		}
+		locations = append(locations, Expanduser("~/.config"))
+		if runtime.GOOS == "darwin" {
+			locations = append(locations, Expanduser("~/Library/Preferences"))
+		}
+		for _, loc := range locations {
+			if loc != "" {
+				q := filepath.Join(loc, "kitty")
+				if _, err := os.Stat(filepath.Join(q, "kitty.conf")); err == nil {
+					config_dir = q
+					break
+				}
+			}
+		}
+		for _, loc := range locations {
+			if loc != "" {
+				config_dir = filepath.Join(loc, "kitty")
+				break
+			}
+		}
+	}
+
+	return config_dir
+}