Add "--all" flag to list-releases to print older releases too

This will allow us to fix the broken test in master and also allow
people to downgrade to older releases.

Signed-off-by: Dimitris Karakasilis <dimitris@karakasilis.me>

internal/agent/upgrade.go

@@ -34,18 +34,24 @@ func CurrentImage() (string, error) {
 	return artifact.ContainerName(registryAndOrg)
 }
 
-func ListReleases(includePrereleases bool) ([]string, error) {
+func ListAllReleases(includePrereleases bool) ([]string, error) {
 	var err error
 
-	providerTags, err := getReleasesFromProvider(includePrereleases)
+	tagList, err := allReleases()
 	if err != nil {
-		fmt.Printf("warn: %s", err.Error())
+		return []string{}, err
 	}
 
-	if len(providerTags) != 0 {
-		return providerTags, nil
+	if !includePrereleases {
+		tagList = tagList.NoPrereleases()
 	}
 
+	return tagList.FullImages()
+}
+
+func ListNewerReleases(includePrereleases bool) ([]string, error) {
+	var err error
+
 	tagList, err := newerReleases()
 	if err != nil {
 		return []string{}, err
@@ -98,6 +104,25 @@ func upgrade(source string, force, strictValidations bool, dirs []string, preRel
 	return hook.Run(*c, upgradeSpec, hook.AfterUpgrade...)
 }
 
+func allReleases() (versioneer.TagList, error) {
+	artifact, err := versioneer.NewArtifactFromOSRelease()
+	if err != nil {
+		return versioneer.TagList{}, err
+	}
+
+	registryAndOrg, err := utils.OSRelease("REGISTRY_AND_ORG")
+	if err != nil {
+		return versioneer.TagList{}, err
+	}
+
+	tagList, err := artifact.TagList(registryAndOrg)
+	if err != nil {
+		return tagList, err
+	}
+
+	return tagList.OtherAnyVersion().RSorted(), nil
+}
+
 func newerReleases() (versioneer.TagList, error) {
 	artifact, err := versioneer.NewArtifactFromOSRelease()
 	if err != nil {

main.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/kairos-io/kairos-agent/v2/pkg/action"
 	"github.com/kairos-io/kairos-agent/v2/pkg/utils"
+	"github.com/mudler/go-pluggable"
 
 	"github.com/kairos-io/kairos-agent/v2/internal/agent"
 	"github.com/kairos-io/kairos-agent/v2/internal/bus"
@@ -21,6 +22,7 @@ import (
 	agentConfig "github.com/kairos-io/kairos-agent/v2/pkg/config"
 	v1 "github.com/kairos-io/kairos-agent/v2/pkg/types/v1"
 	"github.com/kairos-io/kairos-sdk/bundles"
+	events "github.com/kairos-io/kairos-sdk/bus"
 	"github.com/kairos-io/kairos-sdk/collector"
 	"github.com/kairos-io/kairos-sdk/machine"
 	"github.com/kairos-io/kairos-sdk/schema"
@@ -95,6 +97,7 @@ See https://kairos.io/docs/upgrade/manual/ for documentation.
 						Usage: "Output format (json|yaml|terminal)",
 					},
 					&cli.BoolFlag{Name: "pre", Usage: "Include pre-releases (rc, beta, alpha)"},
+					&cli.BoolFlag{Name: "all", Usage: "Include older releases"},
 				},
 				Name:        "list-releases",
 				Description: `List all available releases versions`,
@@ -105,18 +108,41 @@ See https://kairos.io/docs/upgrade/manual/ for documentation.
 					}
 					fmt.Printf("Current image:\n%s\n\n", currentImage)
 
-					fmt.Println("Available releases with higher versions:")
-					releases, err := agent.ListReleases(c.Bool("pre"))
+					var tags []string
+					tags, err = getReleasesFromProvider(c.Bool("pre"))
 					if err != nil {
 						return err
 					}
 
-					if len(releases) == 0 {
+					// Provider returns tags. Print and return.
+					if len(tags) > 0 {
+						fmt.Println("Available releases from provider:")
+						for _, r := range tags {
+							fmt.Println(r)
+							return nil
+						}
+					}
+
+					if c.Bool("all") {
+						fmt.Println("Available releases (all):")
+						tags, err = agent.ListAllReleases(c.Bool("pre"))
+						if err != nil {
+							return err
+						}
+					} else {
+						fmt.Println("Available releases with higher version:")
+						tags, err = agent.ListNewerReleases(c.Bool("pre"))
+						if err != nil {
+							return err
+						}
+					}
+
+					if len(tags) == 0 {
 						fmt.Println("No newer releases found")
 						return nil
 					}
 
-					for _, r := range releases {
+					for _, r := range tags {
 						fmt.Println(r)
 					}
 
@@ -779,3 +805,23 @@ func validateSource(source string) error {
 
 	return nil
 }
+
+func getReleasesFromProvider(includePrereleases bool) ([]string, error) {
+	var tags []string
+	bus.Manager.Response(events.EventAvailableReleases, func(p *pluggable.Plugin, r *pluggable.EventResponse) {
+		if r.Data == "" {
+			return
+		}
+		if err := json.Unmarshal([]byte(r.Data), &tags); err != nil {
+			fmt.Printf("warn: failed unmarshalling data: '%s'\n", err.Error())
+		}
+	})
+
+	configYAML := fmt.Sprintf("IncludePreReleases: %t", includePrereleases)
+	_, err := bus.Manager.Publish(events.EventAvailableReleases, events.EventPayload{Config: configYAML})
+	if err != nil {
+		return tags, fmt.Errorf("failed publishing event: %w", err)
+	}
+
+	return tags, nil
+}