fix(logging): align default paths and refactor logging setup

cmd/picoclaw/main.go

@@ -1432,25 +1432,37 @@ func skillsShowCmd(loader *skills.SkillsLoader, skillName string) {
 	fmt.Println(content)
 }
 
-func setupLogging(cfg *config.Config) {
-	if strings.ToLower(cfg.Logging.Level) == "debug" {
-		logger.SetLevel(logger.DEBUG)
-	} else if strings.ToLower(cfg.Logging.Level) == "warn" {
-		logger.SetLevel(logger.WARN)
-	} else if strings.ToLower(cfg.Logging.Level) == "error" {
-		logger.SetLevel(logger.ERROR)
-	} else {
-		logger.SetLevel(logger.INFO)
+func parseLogLevel(level string) logger.LogLevel {
+	switch strings.ToLower(level) {
+	case "debug":
+		return logger.DEBUG
+	case "warn":
+		return logger.WARN
+	case "error":
+		return logger.ERROR
+	default:
+		return logger.INFO
 	}
+}
+
+func expandPath(p string) string {
+	if p == "~" || strings.HasPrefix(p, "~/") {
+		if home, err := os.UserHomeDir(); err == nil {
+			return filepath.Join(home, p[1:])
+		}
+	}
+	return p
+}
+
+func setupLogging(cfg *config.Config) {
+	logger.SetLevel(parseLogLevel(cfg.Logging.Level))
 
 	if cfg.Logging.EnableFile && cfg.Logging.FilePath != "" {
-		logPath := cfg.Logging.FilePath
-		if strings.HasPrefix(logPath, "~") {
-			home, _ := os.UserHomeDir()
-			logPath = filepath.Join(home, logPath[1:])
-		}
+		logPath := expandPath(cfg.Logging.FilePath)
 
-		os.MkdirAll(filepath.Dir(logPath), 0755)
+		if err := os.MkdirAll(filepath.Dir(logPath), 0755); err != nil {
+			fmt.Printf("Warning: unable to create log directory: %v\n", err)
+		}
 
 		if err := logger.EnableFileLogging(logPath); err != nil {
 			fmt.Printf("Warning: unable to create log file: %v\n", err)

cmd/picoclaw/main_test.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/sipeed/picoclaw/pkg/logger"
+)
+
+func TestParseLogLevel(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected logger.LogLevel
+	}{
+		{"debug", logger.DEBUG},
+		{"DEBUG", logger.DEBUG},
+		{"warn", logger.WARN},
+		{"error", logger.ERROR},
+		{"info", logger.INFO},
+		{"unknown", logger.INFO}, // Default fallback
+		{"", logger.INFO},        // Empty string fallback
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.input, func(t *testing.T) {
+			if got := parseLogLevel(tt.input); got != tt.expected {
+				t.Errorf("parseLogLevel(%q) = %v, want %v", tt.input, got, tt.expected)
+			}
+		})
+	}
+}
+
+func TestExpandPath(t *testing.T) {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		t.Skip("Skipping test: unable to get user home directory")
+	}
+
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{"Home directory root", "~", home},
+		{"Home directory subpath", "~/logs/audit.log", filepath.Join(home, "/logs/audit.log")},
+		{"Absolute path", "/var/log/app.log", "/var/log/app.log"},
+		{"Relative path", "./logs/app.log", "./logs/app.log"},
+		{"Other user home (should not expand)", "~user/logs.txt", "~user/logs.txt"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := expandPath(tt.input); got != tt.expected {
+				t.Errorf("expandPath(%q) = %q, want %q", tt.input, got, tt.expected)
+			}
+		})
+	}
+}

pkg/config/config.go

@@ -365,7 +365,7 @@ func DefaultConfig() *Config {
 		},
 		Logging: LoggingConfig{
 			EnableFile: false,
-			FilePath:   "~/.picoclaw/workspace/picoclaw_audit.log",
+			FilePath:   "picoclaw_audit.log",
 			Level:      "info",
 		},
 	}