chore: Update config pkg to env (#3)

Author: kzs0

config.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/kzs0/bedrock/config"
+	"github.com/kzs0/bedrock/env"
 	"github.com/kzs0/bedrock/trace"
 )
 
@@ -87,7 +87,7 @@ func DefaultConfig() Config {
 
 // FromEnv loads configuration from environment variables.
 func FromEnv() (Config, error) {
-	cfg, err := config.Parse[Config]()
+	cfg, err := env.Parse[Config]()
 	if err != nil {
 		return Config{}, fmt.Errorf("bedrock: failed to parse config from env: %w", err)
 	}

config/config.go env/config.goconfig/config.go renamed to env/config.go

@@ -1,4 +1,4 @@
-package config
+package env
 
 import (
 	"fmt"
@@ -16,7 +16,7 @@ func ParseWithPrefix[T any](prefix string) (T, error) {
 	var cfg T
 	err := parseStruct(reflect.ValueOf(&cfg).Elem(), prefix)
 	if err != nil {
-		return cfg, fmt.Errorf("config: %w", err)
+		return cfg, fmt.Errorf("env: %w", err)
 	}
 	return cfg, nil
 }
@@ -27,7 +27,7 @@ func ParseWithPrefix[T any](prefix string) (T, error) {
 func From[T any](cfg T) (T, error) {
 	v := reflect.ValueOf(&cfg).Elem()
 	if err := validateStruct(v, ""); err != nil {
-		return cfg, fmt.Errorf("config: %w", err)
+		return cfg, fmt.Errorf("env: %w", err)
 	}
 	return cfg, nil
 }

config/config_test.go env/config_test.goconfig/config_test.go renamed to env/config_test.go

@@ -1,4 +1,4 @@
-package config
+package env
 
 import (
 	"os"
@@ -194,3 +194,29 @@ func TestFrom(t *testing.T) {
 		t.Errorf("expected name 'test', got %q", validated.Name)
 	}
 }
+
+type IgnoredFieldConfig struct {
+	Name   string `env:"NAME"`
+	Secret string `env:"-"`
+}
+
+func TestIgnoredFields(t *testing.T) {
+	_ = os.Setenv("NAME", "test")
+	_ = os.Setenv("-", "should-be-ignored")
+	defer func() {
+		_ = os.Unsetenv("NAME")
+		_ = os.Unsetenv("-")
+	}()
+
+	cfg, err := Parse[IgnoredFieldConfig]()
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if cfg.Name != "test" {
+		t.Errorf("expected name 'test', got %q", cfg.Name)
+	}
+	if cfg.Secret != "" {
+		t.Errorf("expected secret to be empty (ignored), got %q", cfg.Secret)
+	}
+}

config/env.go env/env.goconfig/env.go renamed to env/env.go

@@ -1,4 +1,4 @@
-package config
+package env
 
 import (
 	"fmt"

config/parser.go env/parser.goconfig/parser.go renamed to env/parser.go

@@ -1,4 +1,4 @@
-package config
+package env
 
 import (
 	"reflect"
@@ -16,7 +16,7 @@ type tag struct {
 // parseTag parses the env struct tag.
 func parseTag(field reflect.StructField) (tag, error) {
 	envTag := field.Tag.Get("env")
-	if envTag == "" {
+	if envTag == "" || envTag == "-" {
 		return tag{}, nil
 	}
 

example/main.go

@@ -12,7 +12,7 @@ import (
 
 	"github.com/kzs0/bedrock"
 	"github.com/kzs0/bedrock/attr"
-	"github.com/kzs0/bedrock/config"
+	"github.com/kzs0/bedrock/env"
 )
 
 type Config struct {
@@ -22,7 +22,7 @@ type Config struct {
 
 func main() {
 	ctx := context.Background()
-	cfg, err := config.Parse[Config]()
+	cfg, err := env.Parse[Config]()
 	if err != nil {
 		// Use defaults if config parsing fails
 		cfg = Config{