Add init command

Signed-off-by: Andrea Luzzardi <[email protected]>

cmd/init.go

@@ -0,0 +1,59 @@
+package cmd
+
+import (
+	"context"
+	"os"
+	"path"
+
+	"github.com/blocklayerhq/chainkit/pkg/project"
+	"github.com/blocklayerhq/chainkit/pkg/ui"
+	"github.com/spf13/cobra"
+)
+
+var initCmd = &cobra.Command{
+	Use:   "init",
+	Short: "Initialize an application",
+	Args:  cobra.ExactArgs(0),
+	Run: func(cmd *cobra.Command, args []string) {
+		ctx := context.Background()
+
+		p, err := project.Load(getCwd(cmd))
+		if err != nil {
+			ui.Fatal("%v", err)
+		}
+		if err := initialize(ctx, p); err != nil {
+			ui.Fatal("Initialization failed: %v", err)
+		}
+
+	},
+}
+
+func init() {
+	initCmd.Flags().String("cwd", ".", "specifies the current working directory")
+
+	rootCmd.AddCommand(initCmd)
+}
+
+func initialize(ctx context.Context, p *project.Project) error {
+	_, err := os.Stat(path.Join(p.RootDir, "data"))
+
+	// Skip initialization if already initialized.
+	if err == nil {
+		return nil
+	}
+
+	// Make sure we got an ErrNotExist - fail otherwise.
+	if err != nil && !os.IsNotExist(err) {
+		return err
+	}
+
+	ui.Info("Generating configuration and gensis")
+	if err := dockerRun(ctx, p.RootDir, p.Name, "init"); err != nil {
+		return err
+	}
+	if err := ui.Tree(path.Join(p.RootDir, "data"), nil); err != nil {
+		return err
+	}
+
+	return nil
+}