Remove dead code

internal/evaluation_target/application_snapshot_image/application_snapshot_image.go

@@ -63,10 +63,6 @@ type ApplicationSnapshotImage struct {
 	snapshot         app.SnapshotSpec
 }
 
-func (a ApplicationSnapshotImage) GetReference() name.Reference {
-	return a.reference
-}
-
 // NewApplicationSnapshotImage returns an ApplicationSnapshotImage struct with reference, checkOpts, and evaluator ready to use.
 func NewApplicationSnapshotImage(ctx context.Context, component app.SnapshotComponent, p policy.Policy, snap app.SnapshotSpec) (*ApplicationSnapshotImage, error) {
 	opts, err := p.CheckOpts()

internal/policy/policy.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"crypto"
 	_ "embed"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"os"
@@ -29,7 +28,6 @@ import (
 
 	"github.com/enterprise-contract/enterprise-contract-controller/api/v1alpha1"
 	ecc "github.com/enterprise-contract/enterprise-contract-controller/api/v1alpha1"
-	schemaExporter "github.com/invopop/jsonschema"
 	"github.com/santhosh-tekuri/jsonschema/v5"
 	"github.com/sigstore/cosign/v2/cmd/cosign/cli/fulcio"
 	"github.com/sigstore/cosign/v2/cmd/cosign/cli/rekor"
@@ -55,27 +53,12 @@ const (
 // allows controlling time in tests
 var now = time.Now
 
-var (
-	PolicySourcesFrom      = source.PolicySourcesFrom
-	CreateWorkDir          = utils.CreateWorkDir
-	PolicyCacheFromContext = cache.PolicyCacheFromContext
-)
+var PolicySourcesFrom = source.PolicySourcesFrom
 
 func ValidatePolicy(ctx context.Context, policyConfig string) error {
 	return validatePolicyConfig(policyConfig)
 }
 
-// Create a JSON schema from a Go type, and return the JSON as a byte slice
-func jsonSchemaFromPolicySpec(ecp *ecc.EnterpriseContractPolicySpec) ([]byte, error) {
-	r := new(schemaExporter.Reflector)
-	schema := r.Reflect(ecp)
-	schemaJson, err := json.MarshalIndent(schema, "", "  ")
-	if err != nil {
-		return nil, err
-	}
-	return schemaJson, nil
-}
-
 type SigstoreOpts struct {
 	CertificateIdentity         string `json:"certificate_identity"`
 	CertificateIdentityRegExp   string `json:"certificate_identity_regexp"`

internal/policy/policy_test.go

@@ -29,7 +29,6 @@ import (
 
 	hd "github.com/MakeNowJust/heredoc"
 	ecc "github.com/enterprise-contract/enterprise-contract-controller/api/v1alpha1"
-	"github.com/gkampitakis/go-snaps/snaps"
 	"github.com/sigstore/cosign/v2/pkg/cosign"
 	cosignSig "github.com/sigstore/cosign/v2/pkg/signature"
 	sigstoreSig "github.com/sigstore/sigstore/pkg/signature"
@@ -718,17 +717,6 @@ func TestIsConformant(t *testing.T) {
 	}
 }
 
-func TestJsonSchemaFromPolicySpec(t *testing.T) {
-	ecp := &ecc.EnterpriseContractPolicySpec{
-		PublicKey: "testPublicKey",
-		RekorUrl:  "testRekorUrl",
-	}
-	schemaJson, err := jsonSchemaFromPolicySpec(ecp)
-	assert.NoError(t, err)
-
-	snaps.MatchJSON(t, schemaJson)
-}
-
 func TestSigstoreOpts(t *testing.T) {
 	cases := []struct {
 		name         string

internal/utils/helpers.go

@@ -17,45 +17,19 @@
 package utils
 
 import (
-	"bytes"
 	"context"
 	"encoding/json"
 	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
-	"unicode"
 
 	isatty "github.com/mattn/go-isatty"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/afero"
 	"sigs.k8s.io/yaml"
 )
 
-// ToJSON converts a single YAML document into a JSON document
-// or returns an error. If the document appears to be JSON the
-// YAML decoding path is not used.
-func ToJSON(data []byte) ([]byte, error) {
-	if hasJSONPrefix(data) {
-		return data, nil
-	}
-	return yaml.YAMLToJSON(data)
-}
-
-var jsonPrefix = []byte("{")
-
-// hasJSONPrefix returns true if the provided buffer appears to start with
-// a JSON open brace.
-func hasJSONPrefix(buf []byte) bool {
-	return hasPrefix(buf, jsonPrefix)
-}
-
-// hasPrefix returns true if the first non-whitespace bytes in buf is prefix.
-func hasPrefix(buf []byte, prefix []byte) bool {
-	trim := bytes.TrimLeftFunc(buf, unicode.IsSpace)
-	return bytes.HasPrefix(trim, prefix)
-}
-
 // CreateWorkDir creates the working directory in tmp and some subdirectories
 func CreateWorkDir(fs afero.Fs) (string, error) {
 	workDir, err := afero.TempDir(fs, afero.GetTempDir(fs, ""), "ec-work-")