fix: check if base image is nil

Signed-off-by: felipecruz91 <[email protected]>

policy/policy_handler/mocks/builder.go

@@ -47,7 +47,7 @@ func BuildLocalEvalMocks(ctx context.Context, req skill.RequestContext, sb *type
 	}
 
 	// Base image
-	if sb.Source.Provenance == nil {
+	if sb.Source.Provenance == nil || sb.Source.Provenance.BaseImage == nil {
 		req.Log.Info("Skipping base image mock, no provenance in SBOM")
 	} else {
 		baseImageMock := MockBaseImage(sb)

policy/policy_handler/mocks/image_details_by_digest.go

@@ -0,0 +1,101 @@
+package mocks
+
+import (
+	"context"
+
+	"github.com/atomist-skills/go-skill"
+	"github.com/atomist-skills/go-skill/policy/types"
+)
+
+const (
+	ImageDetailsQueryName = "image-details-by-digest"
+
+	ImageDetailsQuery = `
+	query ($context: Context!, $digest: String!, $platform: ImagePlatform!) {
+		imageDetailsByDigest(
+			context: $context
+			digest: $digest
+			platform: $platform
+		) {
+			digest
+			baseImage {
+				digest
+				repository {
+					hostName
+					repoName
+				}
+				tags {
+					name
+					current
+				}
+			}
+			baseImageTag {
+				name
+				current
+			}
+		}
+	}
+`
+)
+
+type (
+	GqlImagePlatform struct {
+		Architecture string `json:"architecture"`
+		Os           string `json:"os"`
+		Variant      string `json:"variant,omitempty"`
+	}
+
+	Repository struct {
+		HostName string `json:"hostName" edn:"hostName"`
+		RepoName string `json:"repoName" edn:"repoName"`
+	}
+
+	Tag struct {
+		Name    string `json:"name" edn:"name"`
+		Current bool   `json:"current" edn:"current"`
+	}
+
+	BaseImage struct {
+		Digest     string     `json:"digest" edn:"digest"`
+		Repository Repository `json:"repository" edn:"repository"`
+		Tags       []Tag      `json:"tags" edn:"tags"`
+	}
+
+	ImageDetailsByDigest struct {
+		Digest       string     `json:"digest" edn:"digest"`
+		BaseImage    *BaseImage `json:"baseImage" edn:"baseImage"`
+		BaseImageTag *Tag       `json:"baseImageTag" edn:"baseImageTag"`
+	}
+
+	ImageDetailsByDigestResponse struct {
+		ImageDetailsByDigest *ImageDetailsByDigest `json:"imageDetailsByDigest" edn:"imageDetailsByDigest"`
+	}
+)
+
+func MockImageDetailsByDigest(ctx context.Context, req skill.RequestContext, sb *types.SBOM) (ImageDetailsByDigestResponse, error) {
+	req.Log.Info("Building local evaluation mocks for image details by digest")
+
+	var tags []Tag
+	for _, t := range sb.Source.Image.Details.Tags {
+		tags = append(tags, Tag{
+			Name:    t.Name,
+			Current: t.Current,
+		})
+	}
+
+	repo := parseFromReference(sb.Source.Provenance.BaseImage.Name)
+
+	return ImageDetailsByDigestResponse{
+		ImageDetailsByDigest: &ImageDetailsByDigest{
+			Digest: sb.Source.Image.Digest,
+			BaseImage: &BaseImage{
+				Digest: sb.Source.Provenance.BaseImage.Digest,
+				Repository: Repository{
+					HostName: repo.Host,
+					RepoName: repo.Repository,
+				},
+				Tags: tags,
+			},
+		},
+	}, nil
+}