update linter + fix whitespace (#536)

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

syft/pkg/cataloger/apkdb/cataloger.go

@@ -11,7 +11,7 @@ import (
 // NewApkdbCataloger returns a new Alpine DB cataloger object.
 func NewApkdbCataloger() *common.GenericCataloger {
 	globParsers := map[string]common.ParserFn{
-		pkg.ApkDbGlob: parseApkDB,
+		pkg.ApkDBGlob: parseApkDB,
 	}
 
 	return common.NewGenericCataloger(nil, globParsers, "apkdb-cataloger")

syft/pkg/cataloger/common/cpe/candidate_by_package_type.go

@@ -29,20 +29,20 @@ var defaultCandidateAdditions = buildCandidateLookup(
 		{
 			// example image: docker.io/nuxeo:latest
 			pkg.JavaPkg,
-			candidateKey{PkgName: "elasticsearch"}, //, Vendor: "elasticsearch"},
+			candidateKey{PkgName: "elasticsearch"}, // , Vendor: "elasticsearch"},
 			candidateAddition{AdditionalVendors: []string{"elastic"}},
 		},
 		{
 			// example image: docker.io/kaazing-gateway:latest
 			pkg.JavaPkg,
-			candidateKey{PkgName: "log4j"}, //, Vendor: "apache-software-foundation"},
+			candidateKey{PkgName: "log4j"}, // , Vendor: "apache-software-foundation"},
 			candidateAddition{AdditionalVendors: []string{"apache"}},
 		},
 
 		{
 			// example image: cassandra:latest
 			pkg.JavaPkg,
-			candidateKey{PkgName: "apache-cassandra"}, //, Vendor: "apache"},
+			candidateKey{PkgName: "apache-cassandra"}, // , Vendor: "apache"},
 			candidateAddition{AdditionalProducts: []string{"cassandra"}},
 		},
 

syft/pkg/cataloger/deb/cataloger.go

@@ -36,9 +36,8 @@ func (c *Cataloger) Name() string {
 }
 
 // Catalog is given an object to resolve file references and content, this function returns any discovered Packages after analyzing dpkg support files.
-// nolint:funlen
 func (c *Cataloger) Catalog(resolver source.FileResolver) ([]pkg.Package, error) {
-	dbFileMatches, err := resolver.FilesByGlob(pkg.DpkgDbGlob)
+	dbFileMatches, err := resolver.FilesByGlob(pkg.DpkgDBGlob)
 	if err != nil {
 		return nil, fmt.Errorf("failed to find dpkg status files's by glob: %w", err)
 	}
@@ -80,15 +79,13 @@ func addLicenses(resolver source.FileResolver, dbLocation source.Location, p *pk
 	// get license information from the copyright file
 	copyrightReader, copyrightLocation := fetchCopyrightContents(resolver, dbLocation, p)
 
-	if copyrightReader != nil {
+	if copyrightReader != nil && copyrightLocation != nil {
 		defer internal.CloseAndLogError(copyrightReader, copyrightLocation.VirtualPath)
 		// attach the licenses
 		p.Licenses = parseLicensesFromCopyright(copyrightReader)
 
 		// keep a record of the file where this was discovered
-		if copyrightLocation != nil {
-			p.Locations = append(p.Locations, *copyrightLocation)
-		}
+		p.Locations = append(p.Locations, *copyrightLocation)
 	}
 }
 
@@ -127,28 +124,24 @@ func getAdditionalFileListing(resolver source.FileResolver, dbLocation source.Lo
 
 	md5Reader, md5Location := fetchMd5Contents(resolver, dbLocation, p)
 
-	if md5Reader != nil {
+	if md5Reader != nil && md5Location != nil {
 		defer internal.CloseAndLogError(md5Reader, md5Location.VirtualPath)
 		// attach the file list
 		files = append(files, parseDpkgMD5Info(md5Reader)...)
 
 		// keep a record of the file where this was discovered
-		if md5Location != nil {
-			locations = append(locations, *md5Location)
-		}
+		locations = append(locations, *md5Location)
 	}
 
 	conffilesReader, conffilesLocation := fetchConffileContents(resolver, dbLocation, p)
 
-	if conffilesReader != nil {
+	if conffilesReader != nil && conffilesLocation != nil {
 		defer internal.CloseAndLogError(conffilesReader, conffilesLocation.VirtualPath)
 		// attach the file list
 		files = append(files, parseDpkgConffileInfo(md5Reader)...)
 
 		// keep a record of the file where this was discovered
-		if conffilesLocation != nil {
-			locations = append(locations, *conffilesLocation)
-		}
+		locations = append(locations, *conffilesLocation)
 	}
 
 	return files, locations

syft/pkg/cataloger/rpmdb/cataloger.go

@@ -28,7 +28,7 @@ func (c *Cataloger) Name() string {
 
 // Catalog is given an object to resolve file references and content, this function returns any discovered Packages after analyzing rpm db installation.
 func (c *Cataloger) Catalog(resolver source.FileResolver) ([]pkg.Package, error) {
-	fileMatches, err := resolver.FilesByGlob(pkg.RpmDbGlob)
+	fileMatches, err := resolver.FilesByGlob(pkg.RpmDBGlob)
 	if err != nil {
 		return nil, fmt.Errorf("failed to find rpmdb's by glob: %w", err)
 	}

syft/pkg/cataloger/rpmdb/parse_rpmdb.go

@@ -93,7 +93,7 @@ func extractRpmdbFileRecords(resolver source.FilePathResolver, entry *rpmdb.Pack
 	var records = make([]pkg.RpmdbFileRecord, 0)
 
 	for _, record := range entry.Files {
-		//only persist RPMDB file records which exist in the image/directory, otherwise ignore them
+		// only persist RPMDB file records which exist in the image/directory, otherwise ignore them
 		if resolver.HasPath(record.Path) {
 			records = append(records, pkg.RpmdbFileRecord{
 				Path: record.Path,