feat: tag recipes with abra

cli/recipe/recipe.go

@@ -18,6 +18,7 @@ Cloud community and you can use Abra to read them and create apps for you.
 	Subcommands: []*cli.Command{
 		recipeListCommand,
 		recipeVersionCommand,
+		recipeReleaseCommand,
 		recipeNewCommand,
 		recipeUpgradeCommand,
 		recipeSyncCommand,

cli/recipe/release.go

@@ -0,0 +1,123 @@
+package recipe
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"strconv"
+	"strings"
+
+	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/pkg/config"
+	"coopcloud.tech/abra/pkg/recipe"
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+var Dry bool
+var DryFlag = &cli.BoolFlag{
+	Name:        "dry-run",
+	Value:       false,
+	Destination: &Dry,
+}
+
+var recipeReleaseCommand = &cli.Command{
+	Name:      "release",
+	Usage:     "tag a recipe",
+	Aliases:   []string{"rl"},
+	ArgsUsage: "<recipe> [<tag>]",
+	Flags: []cli.Flag{
+		DryFlag,
+	},
+	Action: func(c *cli.Context) error {
+		recipe := internal.ValidateRecipe(c)
+
+		directory := path.Join(config.APPS_DIR, recipe.Name)
+		if _, err := os.Stat(directory); os.IsNotExist(err) {
+			logrus.Fatalf("recipe doesn't exist at path %s.", directory)
+			return nil
+		}
+
+		images := getImageVersions(recipe)
+		tag := c.Args().Get(1)
+		if tag == "" {
+			for name, version := range images {
+				if !isSemver(version) {
+					logrus.Fatal(fmt.Sprintf("app %s: version number %s is not in the format x.y.z (where x,y,z are integers) - unable to generate tags, please specify a tag yourself.", name, version))
+				}
+			}
+		}
+
+		repo, err := git.PlainOpen(directory)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+		head, err := repo.Head()
+		if err != nil {
+			logrus.Fatal(err)
+		}
+		// get the latest tag with its hash, name etc
+		if tag == "" {
+			var lastTag *object.Tag
+			iter, err := repo.Tags()
+			if err != nil {
+				logrus.Fatal(err)
+			}
+			// TODO: This is some magic and I have no idea what's going on but it does the job. Re-write if this looks stupid to you. Copied from the docs /knoflook
+			if err := iter.ForEach(func(ref *plumbing.Reference) error {
+				obj, err := repo.TagObject(ref.Hash())
+				switch err {
+				case nil:
+					lastTag = obj
+					break
+				case plumbing.ErrObjectNotFound:
+					logrus.Fatal(err)
+				default:
+					return err
+				}
+				return nil
+			}); err != nil {
+				logrus.Fatal(err)
+			}
+		}
+
+		if Dry {
+			logrus.Info(fmt.Sprintf("Dry run only. NOT creating tag %s at %s", tag, head.Hash()))
+			return nil
+		}
+
+		repo.CreateTag(tag, head.Hash(), nil) /* &git.CreateTagOptions{
+			Message: tag,
+		})*/
+		logrus.Info(fmt.Sprintf("Created tag %s at %s.", tag, head.Hash()))
+
+		return nil
+	},
+}
+
+func getImageVersions(recipe recipe.Recipe) map[string]string {
+
+	var services = make(map[string]string)
+	for _, service := range recipe.Config.Services {
+		srv := strings.Split(service.Image, ":")
+		services[srv[0]] = srv[1]
+	}
+
+	return services
+}
+
+func isSemver(ver string) bool {
+	numbers := strings.Split(ver, ".")
+	if len(numbers) > 3 {
+		return false
+	}
+	for _, part := range numbers {
+		if _, err := strconv.Atoi(part); err != nil {
+			return false
+		}
+	}
+	return true
+}