art: Expose to sdk upgrade/list events

internal/agent/upgrade.go

@@ -2,36 +2,80 @@ package agent
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"os"
 	"os/exec"
 	"strings"
 
-	"github.com/c3os-io/c3os/internal/github"
+	events "github.com/c3os-io/c3os/sdk/bus"
+
+	"github.com/c3os-io/c3os/internal/bus"
+	"github.com/c3os-io/c3os/pkg/github"
 	"github.com/c3os-io/c3os/pkg/utils"
+	"github.com/mudler/go-pluggable"
 )
 
-func Upgrade(version, image string, force, debug bool) error {
-	if version == "" && image == "" {
+func ListReleases() []string {
+	releases := []string{}
+
+	bus.Manager.Response(events.EventAvailableReleases, func(p *pluggable.Plugin, r *pluggable.EventResponse) {
+		json.Unmarshal([]byte(r.Data), &releases)
+	})
+
+	bus.Manager.Publish(events.EventAvailableReleases, nil)
+
+	if len(releases) == 0 {
 		githubRepo, err := utils.OSRelease("GITHUB_REPO")
 		if err != nil {
-			return err
+			return releases
 		}
-		releases, _ := github.FindReleases(context.Background(), "", githubRepo)
+		releases, _ = github.FindReleases(context.Background(), "", githubRepo)
+	}
+
+	return releases
+}
+
+func Upgrade(version, image string, force, debug bool) error {
+	bus.Manager.Initialize()
+
+	if version == "" && image == "" {
+		releases := ListReleases()
+
+		if len(releases) == 0 {
+			return fmt.Errorf("no releases found")
+		}
+
 		version = releases[0]
 		fmt.Println("latest release is ", version)
 	}
 
 	if utils.Version() == version && !force {
-		fmt.Println("latest version already installed. use --force to force upgrade")
+		fmt.Println("version already installed. use --force to force upgrade")
 		return nil
 	}
 
+	discoveredImage := ""
+	bus.Manager.Response(events.EventVersionImage, func(p *pluggable.Plugin, r *pluggable.EventResponse) {
+		discoveredImage = r.Data
+	})
+
+	_, err := bus.Manager.Publish(events.EventVersionImage, &events.VersionImagePayload{
+		Version: version,
+	})
+	if err != nil {
+		return err
+	}
+
 	registry, err := utils.OSRelease("IMAGE_REPO")
 	if err != nil {
 		return err
 	}
+
 	img := fmt.Sprintf("%s:%s", registry, version)
+	if discoveredImage != "" {
+		img = discoveredImage
+	}
 	if image != "" {
 		img = image
 	}

internal/github/releases.go

@@ -1,49 +0,0 @@
-package github
-
-import (
-	"context"
-	"fmt"
-	"log"
-	"net/http"
-	"strings"
-
-	"github.com/google/go-github/v40/github"
-	"golang.org/x/oauth2"
-)
-
-func newHTTPClient(ctx context.Context, token string) *http.Client {
-	if token == "" {
-		return http.DefaultClient
-	}
-	src := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
-	return oauth2.NewClient(ctx, src)
-}
-
-func FindReleases(ctx context.Context, token, slug string) ([]string, error) {
-	hc := newHTTPClient(ctx, token)
-	cli := github.NewClient(hc)
-
-	repo := strings.Split(slug, "/")
-	if len(repo) != 2 || repo[0] == "" || repo[1] == "" {
-		return nil, fmt.Errorf("Invalid slug format. It should be 'owner/name': %s", slug)
-	}
-
-	rels, res, err := cli.Repositories.ListReleases(ctx, repo[0], repo[1], nil)
-	if err != nil {
-		log.Println("API returned an error response:", err)
-		if res != nil && res.StatusCode == 404 {
-			// 404 means repository not found or release not found. It's not an error here.
-			err = nil
-			log.Println("API returned 404. Repository or release not found")
-		}
-		return nil, err
-	}
-
-	versions := []string{}
-	for _, rel := range rels {
-		if strings.HasPrefix(*rel.Name, "v") {
-			versions = append(versions, *rel.Name)
-		}
-	}
-	return versions, nil
-}