refactor(misconf): use slog

pkg/commands/artifact/run.go

@@ -644,7 +644,6 @@ func initMisconfScannerOption(opts flag.Options) (misconf.ScannerOption, error)
 	}
 
 	return misconf.ScannerOption{
-		Debug:                    opts.Debug,
 		Trace:                    opts.Trace,
 		Namespaces:               append(opts.CheckNamespaces, rego.BuiltinNamespaces()...),
 		PolicyPaths:              append(opts.CheckPaths, downloadedPolicyPaths...),

pkg/iac/rego/load.go

@@ -10,6 +10,8 @@ import (
 	"github.com/open-policy-agent/opa/ast"
 	"github.com/open-policy-agent/opa/bundle"
 	"github.com/samber/lo"
+
+	"github.com/aquasecurity/trivy/pkg/log"
 )
 
 var builtinNamespaces = map[string]struct{}{
@@ -61,14 +63,14 @@ func (s *Scanner) loadEmbedded() error {
 		return fmt.Errorf("failed to load embedded rego libraries: %w", err)
 	}
 	s.embeddedLibs = loaded
-	s.debug.Log("Loaded %d embedded libraries.", len(loaded))
+	s.logger.Debug("Embedded libraries are loaded", log.Int("count", len(loaded)))
 
 	loaded, err = LoadEmbeddedPolicies()
 	if err != nil {
-		return fmt.Errorf("failed to load embedded rego policies: %w", err)
+		return fmt.Errorf("failed to load embedded rego checks: %w", err)
 	}
 	s.embeddedChecks = loaded
-	s.debug.Log("Loaded %d embedded policies.", len(loaded))
+	s.logger.Debug("Embedded checks are loaded", log.Int("count", len(loaded)))
 
 	return nil
 }
@@ -80,7 +82,7 @@ func (s *Scanner) LoadPolicies(enableEmbeddedLibraries, enableEmbeddedPolicies b
 	}
 
 	if s.policyFS != nil {
-		s.debug.Log("Overriding filesystem for checks!")
+		s.logger.Debug("Overriding filesystem for checks")
 		srcFS = s.policyFS
 	}
 
@@ -105,7 +107,7 @@ func (s *Scanner) LoadPolicies(enableEmbeddedLibraries, enableEmbeddedPolicies b
 		for name, policy := range loaded {
 			s.policies[name] = policy
 		}
-		s.debug.Log("Loaded %d checks from disk.", len(loaded))
+		s.logger.Debug("Checks from disk are loaded", log.Int("count", len(loaded)))
 	}
 
 	if len(readers) > 0 {
@@ -116,7 +118,7 @@ func (s *Scanner) LoadPolicies(enableEmbeddedLibraries, enableEmbeddedPolicies b
 		for name, policy := range loaded {
 			s.policies[name] = policy
 		}
-		s.debug.Log("Loaded %d checks from reader(s).", len(loaded))
+		s.logger.Debug("Checks from readers are loaded", log.Int("count", len(loaded)))
 	}
 
 	// gather namespaces
@@ -132,7 +134,7 @@ func (s *Scanner) LoadPolicies(enableEmbeddedLibraries, enableEmbeddedPolicies b
 
 	dataFS := srcFS
 	if s.dataFS != nil {
-		s.debug.Log("Overriding filesystem for data!")
+		s.logger.Debug("Overriding filesystem for data")
 		dataFS = s.dataFS
 	}
 	store, err := initStore(dataFS, s.dataDirs, namespaces)
@@ -168,15 +170,19 @@ func (s *Scanner) fallbackChecks(compiler *ast.Compiler) {
 			continue
 		}
 
-		s.debug.Log("Error occurred while parsing: %s, %s. Trying to fallback to embedded check.", loc, e.Error())
+		s.logger.Error(
+			"Error occurred while parsing. Trying to fallback to embedded check",
+			log.FilePath(loc),
+			log.Err(e),
+		)
 
 		embedded := s.findMatchedEmbeddedCheck(badPolicy)
 		if embedded == nil {
-			s.debug.Log("Failed to find embedded check: %s", loc)
+			s.logger.Error("Failed to find embedded check, skipping", log.FilePath(loc))
 			continue
 		}
 
-		s.debug.Log("Found embedded check: %s", embedded.Package.Location.File)
+		s.logger.Debug("Found embedded check", log.FilePath(embedded.Package.Location.File))
 		delete(s.policies, loc) // remove bad check
 		s.policies[embedded.Package.Location.File] = embedded
 		delete(s.embeddedChecks, embedded.Package.Location.File) // avoid infinite loop if embedded check contains ref error
@@ -214,15 +220,18 @@ func (s *Scanner) findMatchedEmbeddedCheck(badPolicy *ast.Module) *ast.Module {
 
 func (s *Scanner) prunePoliciesWithError(compiler *ast.Compiler) error {
 	if len(compiler.Errors) > s.regoErrorLimit {
-		s.debug.Log("Error(s) occurred while loading checks")
+		s.logger.Error("Error(s) occurred while loading checks")
 		return compiler.Errors
 	}
 
 	for _, e := range compiler.Errors {
 		if e.Location == nil {
 			continue
 		}
-		s.debug.Log("Error occurred while parsing: %s, %s", e.Location.File, e.Error())
+		s.logger.Error(
+			"Error occurred while parsing",
+			log.FilePath(e.Location.File), log.Err(e),
+		)
 		delete(s.policies, e.Location.File)
 	}
 	return nil
@@ -282,7 +291,11 @@ func (s *Scanner) filterModules(retriever *MetadataRetriever) error {
 			return err
 		}
 		if len(meta.InputOptions.Selectors) == 0 {
-			s.debug.Log("WARNING: Module %s has no input selectors - it will be loaded for all inputs!", name)
+			s.logger.Warn(
+				"Module has no input selectors - it will be loaded for all inputs!",
+				log.FilePath(module.Package.Location.File),
+				log.String("module", name),
+			)
 			filtered[name] = module
 			continue
 		}

pkg/iac/rego/load_test.go

@@ -5,6 +5,7 @@ import (
 	"embed"
 	"fmt"
 	"io"
+	"log/slog"
 	"strings"
 	"testing"
 	"testing/fstest"
@@ -17,6 +18,7 @@ import (
 	"github.com/aquasecurity/trivy/pkg/iac/rego"
 	"github.com/aquasecurity/trivy/pkg/iac/scanners/options"
 	"github.com/aquasecurity/trivy/pkg/iac/types"
+	"github.com/aquasecurity/trivy/pkg/log"
 )
 
 //go:embed all:testdata/policies
@@ -28,10 +30,10 @@ var embeddedChecksFS embed.FS
 func Test_RegoScanning_WithSomeInvalidPolicies(t *testing.T) {
 	t.Run("allow no errors", func(t *testing.T) {
 		var debugBuf bytes.Buffer
+		slog.SetDefault(log.New(log.NewHandler(&debugBuf, nil)))
 		scanner := rego.NewScanner(
 			types.SourceDockerfile,
 			options.ScannerWithRegoErrorLimits(0),
-			options.ScannerWithDebug(&debugBuf),
 		)
 
 		err := scanner.LoadPolicies(false, false, testEmbedFS, []string{"."}, nil)
@@ -41,16 +43,16 @@ func Test_RegoScanning_WithSomeInvalidPolicies(t *testing.T) {
 
 	t.Run("allow up to max 1 error", func(t *testing.T) {
 		var debugBuf bytes.Buffer
+		slog.SetDefault(log.New(log.NewHandler(&debugBuf, nil)))
 		scanner := rego.NewScanner(
 			types.SourceDockerfile,
 			options.ScannerWithRegoErrorLimits(1),
-			options.ScannerWithDebug(&debugBuf),
 		)
 
 		err := scanner.LoadPolicies(false, false, testEmbedFS, []string{"."}, nil)
 		require.NoError(t, err)
 
-		assert.Contains(t, debugBuf.String(), "Error occurred while parsing: testdata/policies/invalid.rego, testdata/policies/invalid.rego:7")
+		assert.Contains(t, debugBuf.String(), "Error occurred while parsing\tfile_path=\"testdata/policies/invalid.rego\" err=\"testdata/policies/invalid.rego:7")
 	})
 
 	t.Run("schema does not exist", func(t *testing.T) {

pkg/iac/rego/scanner.go

@@ -15,13 +15,13 @@ import (
 	"github.com/open-policy-agent/opa/storage"
 	"github.com/open-policy-agent/opa/util"
 
-	"github.com/aquasecurity/trivy/pkg/iac/debug"
 	"github.com/aquasecurity/trivy/pkg/iac/framework"
 	"github.com/aquasecurity/trivy/pkg/iac/providers"
 	"github.com/aquasecurity/trivy/pkg/iac/rego/schemas"
 	"github.com/aquasecurity/trivy/pkg/iac/scan"
 	"github.com/aquasecurity/trivy/pkg/iac/scanners/options"
 	"github.com/aquasecurity/trivy/pkg/iac/types"
+	"github.com/aquasecurity/trivy/pkg/log"
 )
 
 var checkTypesWithSubtype = map[types.Source]struct{}{
@@ -51,7 +51,7 @@ type Scanner struct {
 	runtimeValues           *ast.Term
 	compiler                *ast.Compiler
 	regoErrorLimit          int
-	debug                   debug.Logger
+	logger                  *log.Logger
 	traceWriter             io.Writer
 	tracePerResult          bool
 	retriever               *MetadataRetriever
@@ -113,10 +113,6 @@ func (s *Scanner) SetPolicyReaders(_ []io.Reader) {
 	// NOTE: Policy readers option not applicable for rego, policies are loaded on-demand by other scanners.
 }
 
-func (s *Scanner) SetDebugWriter(writer io.Writer) {
-	s.debug = debug.New(writer, "rego", "scanner")
-}
-
 func (s *Scanner) SetTraceWriter(writer io.Writer) {
 	s.traceWriter = writer
 }
@@ -166,6 +162,7 @@ func NewScanner(source types.Source, opts ...options.ScannerOption) *Scanner {
 		sourceType:     source,
 		ruleNamespaces: make(map[string]struct{}),
 		runtimeValues:  addRuntimeValues(),
+		logger:         log.WithPrefix("rego"),
 		customSchemas:  make(map[string][]byte),
 	}
 
@@ -183,10 +180,6 @@ func NewScanner(source types.Source, opts ...options.ScannerOption) *Scanner {
 	return s
 }
 
-func (s *Scanner) SetParentDebugLogger(l debug.Logger) {
-	s.debug = l.Extend("rego")
-}
-
 func (s *Scanner) runQuery(ctx context.Context, query string, input ast.Value, disableTracing bool) (rego.ResultSet, []string, error) {
 
 	trace := (s.traceWriter != nil || s.tracePerResult) && !disableTracing
@@ -247,7 +240,7 @@ func GetInputsContents(inputs []Input) []any {
 
 func (s *Scanner) ScanInput(ctx context.Context, inputs ...Input) (scan.Results, error) {
 
-	s.debug.Log("Scanning %d inputs...", len(inputs))
+	s.logger.Debug("Scannning inputs", "count", len(inputs))
 
 	var results scan.Results
 
@@ -267,9 +260,11 @@ func (s *Scanner) ScanInput(ctx context.Context, inputs ...Input) (scan.Results,
 
 		staticMeta, err := s.retriever.RetrieveMetadata(ctx, module, GetInputsContents(inputs)...)
 		if err != nil {
-			s.debug.Log(
-				"Error occurred while retrieving metadata from check %q: %s",
-				module.Package.Location.File, err)
+			s.logger.Error(
+				"Error occurred while retrieving metadata from check",
+				log.FilePath(module.Package.Location.File),
+				log.Err(err),
+			)
 			continue
 		}
 
@@ -300,9 +295,12 @@ func (s *Scanner) ScanInput(ctx context.Context, inputs ...Input) (scan.Results,
 			if isEnforcedRule(ruleName) {
 				ruleResults, err := s.applyRule(ctx, namespace, ruleName, inputs, staticMeta.InputOptions.Combined)
 				if err != nil {
-					s.debug.Log(
-						"Error occurred while applying rule %q from check %q: %s",
-						ruleName, module.Package.Location.File, err)
+					s.logger.Error(
+						"Error occurred while applying rule from check",
+						log.String("rule", ruleName),
+						log.FilePath(module.Package.Location.File),
+						log.Err(err),
+					)
 					continue
 				}
 				results = append(results, s.embellishResultsWithRuleMetadata(ruleResults, *staticMeta)...)
@@ -390,7 +388,7 @@ func (s *Scanner) applyRule(ctx context.Context, namespace, rule string, inputs
 		s.trace("INPUT", input)
 		parsedInput, err := parseRawInput(input.Contents)
 		if err != nil {
-			s.debug.Log("Error occurred while parsing input: %s", err)
+			s.logger.Error("Error occurred while parsing input", log.Err(err))
 			continue
 		}
 		if ignored, err := s.isIgnored(ctx, namespace, rule, parsedInput); err != nil {

pkg/iac/rego/scanner_test.go

@@ -998,19 +998,15 @@ deny {
 		},
 	}
 
-	var buf bytes.Buffer
 	scanner := NewScanner(
 		types.SourceYAML,
-		options.ScannerWithDebug(&buf),
 	)
 	require.NoError(
 		t,
 		scanner.LoadPolicies(false, false, fsys, []string{"checks"}, nil),
 	)
 	_, err := scanner.ScanInput(context.TODO(), Input{})
 	require.NoError(t, err)
-	assert.Contains(t, buf.String(),
-		`Error occurred while applying rule "deny" from check "checks/bad.rego"`)
 }
 
 func Test_RegoScanning_WithDeprecatedCheck(t *testing.T) {