Move configuration code to seperate file

cmd/config.go

@@ -0,0 +1,32 @@
+package lumecmd
+
+import (
+	"os"
+	"path"
+)
+
+const lumercFile string = ".lumerc"
+
+func getConfigPath() string {
+	var tryPath, configPath string
+
+	// ~/.lumerc
+	homeDir, err := os.UserHomeDir()
+	if err == nil {
+		tryPath = path.Join(homeDir, lumercFile)
+		if _, err := os.Stat(tryPath); !os.IsNotExist(err) {
+			configPath = tryPath
+		}
+	}
+
+	// ./.lumerc
+	cwd, err := os.Getwd()
+	if err == nil {
+		tryPath = path.Join(cwd, lumercFile)
+		if _, err := os.Stat(tryPath); !os.IsNotExist(err) {
+			configPath = tryPath
+		}
+	}
+
+	return configPath
+}