add template option

pkg/cli/root.go

@@ -1,13 +1,17 @@
 package cli
 
-import "github.com/spf13/cobra"
+import (
+	"git.front.kjuulh.io/kjuulh/bust/pkg/cli/templatecmd"
+	"github.com/spf13/cobra"
+)
 
 func NewCli() *cobra.Command {
 	cmd := &cobra.Command{
-		Use: "dagger",
+		Use: "bust",
 	}
 
 	cmd.AddCommand(Build())
+	cmd.AddCommand(templatecmd.NewTemplateCmd())
 
 	return cmd
 }

pkg/cli/templatecmd/init.go

@@ -0,0 +1,71 @@
+package templatecmd
+
+import (
+	"embed"
+	"errors"
+	"os"
+	"text/template"
+
+	"github.com/spf13/cobra"
+)
+
+//go:embed templates/gobin_default/*
+var gobinDefault embed.FS
+
+func NewInitCmd() *cobra.Command {
+	var (
+		template string
+		name     string
+	)
+
+	cmd := &cobra.Command{
+		Use: "init",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := cmd.ParseFlags(args); err != nil {
+				return err
+			}
+
+			switch template {
+			case "gobin_default":
+				if err := initializeTemplate(&gobinDefault, name); err != nil {
+					return err
+				}
+				break
+			default:
+				return errors.New("could not find matching templates, please run [bust template ls] instead")
+			}
+
+			return nil
+		},
+	}
+
+	cmd.PersistentFlags().StringVarP(&template, "template", "p", "", "The template to initialize")
+	cmd.MarkPersistentFlagRequired("template")
+
+	cmd.PersistentFlags().StringVarP(&name, "name", "n", "", "The name into the template")
+	cmd.MarkPersistentFlagRequired("name")
+
+	return cmd
+}
+
+func initializeTemplate(t *embed.FS, name string) error {
+	tinit := template.
+		Must(
+			template.
+				New("").
+				Delims("[[", "]]").
+				ParseFS(t, "templates/gobin_default/*"),
+		)
+	type data struct {
+		Name string
+	}
+
+	droneWriter, err := os.Create(".drone.yml")
+	if err != nil {
+		return err
+	}
+
+	return tinit.ExecuteTemplate(droneWriter, ".drone.yml", data{
+		Name: name,
+	})
+}

pkg/cli/templatecmd/template.go

@@ -0,0 +1,13 @@
+package templatecmd
+
+import "github.com/spf13/cobra"
+
+func NewTemplateCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use: "template",
+	}
+
+	cmd.AddCommand(NewInitCmd())
+
+	return cmd
+}

pkg/cli/templatecmd/templates/gobin_default/.drone.yml

@@ -0,0 +1,4 @@
+kind: template
+load: bust_gobin_default_template.yaml
+name: [[.Name]]
+data: {}

tmp/.drone.yml

@@ -0,0 +1,4 @@
+kind: template
+load: bust_gobin_default_template.yaml
+name: something
+data: {}