fix: should clear last error after read by config.Error(). close: #76

config.go

@@ -71,6 +71,7 @@ var dc = New("default")
 
 // Config structure definition
 type Config struct {
+	// save latest error, will clear after read.
 	err error
 	// config instance name
 	name string
@@ -189,9 +190,11 @@ func (c *Config) Name() string {
 	return c.name
 }
 
-// Error get last error
+// Error get last error, will clear after read.
 func (c *Config) Error() error {
-	return c.err
+	err := c.err
+	c.err = nil
+	return err
 }
 
 // IsEmpty of the config

dotnev/dotenv.go

@@ -25,16 +25,19 @@ var (
 )
 
 // LoadedData get all loaded data by dontenv
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func LoadedData() map[string]string {
 	return dotenv.LoadedData()
 }
 
 // ClearLoaded clear the previously set ENV value
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func ClearLoaded() {
 	dotenv.ClearLoaded()
 }
 
 // DontUpperEnvKey don't change key to upper on set ENV
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func DontUpperEnvKey() {
 	dotenv.DontUpperEnvKey()
 }
@@ -43,31 +46,37 @@ func DontUpperEnvKey() {
 //
 // Usage:
 // 	dotenv.Load("./", ".env")
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func Load(dir string, filenames ...string) (err error) {
 	return dotenv.Load(dir, filenames...)
 }
 
 // LoadExists only load on file exists
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func LoadExists(dir string, filenames ...string) error {
 	return dotenv.LoadExists(dir, filenames...)
 }
 
 // LoadFromMap load data from given string map
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func LoadFromMap(kv map[string]string) (err error) {
 	return dotenv.LoadFromMap(kv)
 }
 
 // Get get os ENV value by name
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func Get(name string, defVal ...string) (val string) {
 	return dotenv.Get(name, defVal...)
 }
 
 // Bool get a bool value by key
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func Bool(name string, defVal ...bool) (val bool) {
 	return dotenv.Bool(name, defVal...)
 }
 
 // Int get a int value by key
+// Deprecated: please use github.com/gookit/ini/v2/dotenv
 func Int(name string, defVal ...int) (val int) {
 	return dotenv.Int(name, defVal...)
 }

issues_test.go

@@ -136,3 +136,29 @@ func TestIssues_59(t *testing.T) {
 	is.Contains(str, "name = app")
 	is.Contains(str, "key1 = val1")
 }
+
+// https://github.com/gookit/config/issues/76
+func TestIssues_76(t *testing.T) {
+	is := assert.New(t)
+	c := config.New("test")
+
+	err := c.LoadStrings(config.JSON, `
+{
+    "lang": {
+        "allowed": {
+            "en": "ddd"
+        }
+    },
+	"key0": 234
+}
+`)
+	is.NoError(err)
+
+	ss := c.Strings("key0")
+	is.Empty(ss)
+
+	lastErr := c.Error()
+	is.Error(lastErr)
+	is.Equal("value cannot be convert to []string, key is 'key0'", lastErr.Error())
+	is.NoError(c.Error())
+}