turbobob.json: add description, website, documentation and mo…

…ve `project_emoji_icon`

these also get published as OCI-compliant metadata

fix annotations for buildx

cmd/bob/bobfile.go

@@ -25,12 +25,24 @@ type Bobfile struct {
 	FileDescriptionBoilerplate string            `json:"for_description_of_this_file_see"`
 	VersionMajor               int               `json:"version_major"`
 	ProjectName                string            `json:"project_name"`
-	ProjectEmojiIcon           string            `json:"project_emoji_icon,omitempty"` // to quickly differentiate projects in e.g. workspace switcher
+	Meta                       ProjectMetadata   `json:"meta,omitempty"`
 	Builders                   []BuilderSpec     `json:"builders"`
 	DockerImages               []DockerImageSpec `json:"docker_images,omitempty"`
 	Subrepos                   []SubrepoSpec     `json:"subrepos,omitempty"`
 	OsArches                   *OsArchesSpec     `json:"os_arches,omitempty"`
 	Experiments                experiments       `json:"experiments_i_consent_to_breakage,omitempty"`
+	Deprecated1                string            `json:"project_emoji_icon,omitempty"` // moved to `ProjectMetadata`
+}
+
+func (b Bobfile) ProjectEmojiIcon() string {
+	return firstNonEmpty(b.Meta.ProjectEmojiIcon, b.Deprecated1)
+}
+
+type ProjectMetadata struct {
+	Description      string `json:"description,omitempty"`        // what this project is used for
+	Website          string `json:"website,omitempty"`            // URL of homepage or such
+	Documentation    string `json:"documentation,omitempty"`      // URL of documentation website
+	ProjectEmojiIcon string `json:"project_emoji_icon,omitempty"` // to quickly differentiate projects in e.g. workspace switcher
 }
 
 // when experiments are removed or graduated to production, they will be removed from here

cmd/bob/build.go

@@ -135,19 +135,39 @@ func buildAndPushOneDockerImage(dockerImage DockerImageSpec, buildCtx *BuildCont
 	// that non-default branch builds are dev/experimental builds.
 	shouldTagLatest := dockerImage.TagLatest && buildCtx.IsDefaultBranch
 
-	labelArgs := []string{
-		"--label=org.opencontainers.image.created=" + time.Now().UTC().Format(time.RFC3339),
-		"--label=org.opencontainers.image.revision=" + buildCtx.RevisionId.RevisionId,
-		"--label=org.opencontainers.image.version=" + buildCtx.RevisionId.FriendlyRevisionId,
+	annotationsKeyValues := []string{} // items look like "title=foobar"
+
+	// annotationsAs("--annotation=") => ["--annotation=title=foobar"]
+	annotationsAs := func(argPrefix string) []string {
+		argified := []string{}
+		for _, annotation := range annotationsKeyValues {
+			// "title=foobar" => "--annotation=title=foobar"
+			argified = append(argified, argPrefix+annotation)
+		}
+		return argified
 	}
 
-	if buildCtx.RepositoryURL != "" {
-		// "URL to get source code for building the image"
-		labelArgs = append(labelArgs, "--label=org.opencontainers.image.source="+buildCtx.RepositoryURL)
-		// "URL to find more information on the image"
-		labelArgs = append(labelArgs, "--label=org.opencontainers.image.url="+buildCtx.RepositoryURL)
+	annotate := func(key string, value string) {
+		if value == "" {
+			return
+		}
+
+		annotationsKeyValues = append(annotationsKeyValues, fmt.Sprintf("%s=%s", key, value))
 	}
 
+	annotate("org.opencontainers.image.title", buildCtx.Bobfile.ProjectName)
+	annotate("org.opencontainers.image.created", time.Now().UTC().Format(time.RFC3339))
+	annotate("org.opencontainers.image.revision", buildCtx.RevisionId.RevisionId)
+	annotate("org.opencontainers.image.version", buildCtx.RevisionId.FriendlyRevisionId)
+	annotate("org.opencontainers.image.description", buildCtx.Bobfile.Meta.Description)
+
+	// "URL to get source code for building the image"
+	annotate("org.opencontainers.image.source", buildCtx.RepositoryURL)
+	// "URL to find more information on the image"
+	annotate("org.opencontainers.image.url", firstNonEmpty(buildCtx.Bobfile.Meta.Website, buildCtx.RepositoryURL))
+	// "URL to get documentation on the image"
+	annotate("org.opencontainers.image.documentation", firstNonEmpty(buildCtx.Bobfile.Meta.Documentation, buildCtx.RepositoryURL))
+
 	// "" => "."
 	// "Dockerfile" => "."
 	// "subdir/Dockerfile" => "subdir"
@@ -170,7 +190,11 @@ func buildAndPushOneDockerImage(dockerImage DockerImageSpec, buildCtx *BuildCont
 			"--tag=" + tag,
 		}
 
-		args = append(args, labelArgs...)
+		// https://docs.docker.com/reference/cli/docker/buildx/build/#annotation
+		// annotate both the image index and the image manifest.
+		// if we don't specify type of annotation, only the image manifest is annotated.
+		// for example GitHub packages UI only shows annotations from OCI image index.
+		args = append(args, annotationsAs("--annotation=index,manifest:")...)
 
 		if shouldTagLatest {
 			args = append(args, "--tag="+tagLatest)
@@ -192,7 +216,8 @@ func buildAndPushOneDockerImage(dockerImage DockerImageSpec, buildCtx *BuildCont
 		"build",
 		"--file", dockerfilePath,
 		"--tag", tag}
-	dockerBuildArgs = append(dockerBuildArgs, labelArgs...)
+	// `$ docker build ...` doesn't have annotation support. we have to use labels.
+	dockerBuildArgs = append(dockerBuildArgs, annotationsAs("--label=")...)
 	dockerBuildArgs = append(dockerBuildArgs, buildContextDir)
 
 	//nolint:gosec // ok

cmd/bob/workspace.go

@@ -108,8 +108,8 @@ func workspaceRenameToSelectedProject() error {
 	}
 
 	nameWithMaybeIcon := func() string {
-		if bobfile.ProjectEmojiIcon != "" && userConfig.WindowManagerShowProjectEmojiIcons {
-			return fmt.Sprintf("%s %s", bobfile.ProjectEmojiIcon, bobfile.ProjectName)
+		if projectEmojiIcon := bobfile.ProjectEmojiIcon(); projectEmojiIcon != "" && userConfig.WindowManagerShowProjectEmojiIcons {
+			return fmt.Sprintf("%s %s", projectEmojiIcon, bobfile.ProjectName)
 		} else {
 			return bobfile.ProjectName
 		}