First commit of golang CLI.

wild-cli/cmd/wild/util/template.go

@@ -0,0 +1,61 @@
+package util
+
+import (
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/spf13/cobra"
+
+	"github.com/wild-cloud/wild-cli/internal/config"
+	"github.com/wild-cloud/wild-cli/internal/environment"
+)
+
+func newCompileCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:   "compile",
+		Short: "Compile template from stdin",
+		Long: `Compile a template from stdin using Wild Cloud configuration context.
+
+This command reads template content from stdin and processes it using the 
+current project's config.yaml and secrets.yaml as context.
+
+Examples:
+  echo 'Hello {{.config.cluster.name}}' | wild template compile
+  cat template.yml | wild template compile`,
+		RunE: runCompileTemplate,
+	}
+}
+
+func runCompileTemplate(cmd *cobra.Command, args []string) error {
+	// Initialize environment
+	env := environment.New()
+	if err := env.RequiresProject(); err != nil {
+		return err
+	}
+
+	// Create config manager
+	mgr := config.NewManager(env.ConfigPath(), env.SecretsPath())
+
+	// Create template engine
+	engine, err := config.NewTemplateEngine(mgr)
+	if err != nil {
+		return fmt.Errorf("creating template engine: %w", err)
+	}
+
+	// Read template from stdin
+	templateContent, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		return fmt.Errorf("reading template from stdin: %w", err)
+	}
+
+	// Process template
+	result, err := engine.Process(string(templateContent))
+	if err != nil {
+		return fmt.Errorf("processing template: %w", err)
+	}
+
+	// Output result
+	fmt.Print(result)
+	return nil
+}