Added css minify

resolver-go/internal/minifier/css/compiler.go

@@ -0,0 +1,34 @@
+package css
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/evanw/esbuild/pkg/api"
+	"github.com/tgckpg/resolver-go/internal/compilecache"
+)
+
+func NewEsbuildCompiler() *EsbuildCompiler {
+	return &EsbuildCompiler{}
+}
+
+func (c *EsbuildCompiler) Compile(ctx context.Context, job compilecache.Job) ([]byte, error) {
+	payload, ok := job.Payload.(CompilePayload)
+	if !ok {
+		return nil, fmt.Errorf("esbuild css compiler got invalid payload type %T", job.Payload)
+	}
+
+	result := api.Transform(payload.Source, api.TransformOptions{
+		Loader:            api.LoaderCSS,
+		Sourcefile:        payload.Name,
+		MinifyWhitespace:  true,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+	})
+
+	if len(result.Errors) > 0 {
+		return nil, fmt.Errorf("css compile failed: %s", result.Errors[0].Text)
+	}
+
+	return result.Code, nil
+}