Swap to general export command

server/export.go

@@ -0,0 +1,48 @@
+package server
+
+import (
+	"fmt"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/tendermint/tmlibs/log"
+
+	"github.com/cosmos/cosmos-sdk/wire"
+)
+
+// AppExporter dumps all app state to JSON-serializable structure
+type AppExporter func(home string, log log.Logger) (interface{}, *wire.Codec, error)
+
+// ExportCmd dumps app state to JSON
+func ExportCmd(app AppExporter, ctx *Context) *cobra.Command {
+	export := exportCmd{
+		appExporter: app,
+		context:     ctx,
+	}
+	cmd := &cobra.Command{
+		Use:   "export",
+		Short: "Export state to JSON",
+		RunE:  export.run,
+	}
+	return cmd
+}
+
+type exportCmd struct {
+	appExporter AppExporter
+	context     *Context
+}
+
+func (e exportCmd) run(cmd *cobra.Command, args []string) error {
+	home := viper.GetString("home")
+	genesis, cdc, err := e.appExporter(home, e.context.Logger)
+	if err != nil {
+		return errors.Errorf("Error exporting state: %v\n", err)
+	}
+	output, err := wire.MarshalJSONIndent(cdc, genesis)
+	if err != nil {
+		return errors.Errorf("Error marshalling state: %v\n", err)
+	}
+	fmt.Println(string(output))
+	return nil
+}