WIP: abra recipe upgrade on the way

cli/recipe/recipe.go

@@ -158,7 +158,32 @@ var recipeUpgradeCommand = &cli.Command{
 		if recipe == "" {
 			internal.ShowSubcommandHelpAndError(c, errors.New("no recipe provided"))
 		}
-		// TODO: part 1 of https://git.coopcloud.tech/coop-cloud/go-abra/issues/39#issuecomment-8066
+
+		type existingTags struct {
+			AppCatalogueTags map[string]string
+			RegistryTags     map[string]string
+			RecipeSkipTags   map[string]string
+		}
+
+		pattern := fmt.Sprintf("%s/%s/compose**yml", config.APPS_DIR, recipe)
+		composeFiles, err := filepath.Glob(pattern)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		opts := options.Deploy{Composefiles: composeFiles}
+		compose, err := loader.LoadComposefile(opts)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		for _, service := range compose.Services {
+			_, err := catalogue.VersionsOfService(recipe, service.Name)
+			if err != nil {
+				logrus.Fatal(err)
+			}
+		}
+		// TODO
 		return nil
 	},
 }