grype: cleanup test skipping

diff --git a/grype/presenter/internal/test_helpers.go b/grype/presenter/internal/test_helpers.go

index 2bfafbc2..6e70ed87 100644

--- a/grype/presenter/internal/test_helpers.go

+++ b/grype/presenter/internal/test_helpers.go

@@ -1,6 +1,7 @@

 package internal

 import (

+	"os"

 	"regexp"

 	"testing"

@@ -92,8 +93,21 @@ func Redact(s []byte) []byte {

 	cycloneDxBomRefPattern := regexp.MustCompile(`[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}`)

 	tempDirPattern := regexp.MustCompile(`/tmp/[^"]+`)

 	macTempDirPattern := regexp.MustCompile(`/var/folders/[^"]+`)

+	// nix build dir isn't always /build so we'll identify it by $TMP

+	nixDir := os.Getenv("TMP")

+	if nixDir == "" {

+		panic("missing $TMP for identifying nix build dir")

+	}

+	end := regexp.QuoteMeta(nixDir)

+	pattern := `[^"]+`

+	// add slash prefix to pattern only if required

+	// don't use strings lib to reduce chance of merge conflicts above

+	if end[len(end)-1] != '/' {

+		pattern = "/" + pattern

+	}

+	nixBuildDirPattern := regexp.MustCompile(end + pattern)

-	for _, pattern := range []*regexp.Regexp{serialPattern, rfc3339Pattern, refPattern, uuidPattern, cycloneDxBomRefPattern, tempDirPattern, macTempDirPattern} {

+	for _, pattern := range []*regexp.Regexp{serialPattern, rfc3339Pattern, refPattern, uuidPattern, cycloneDxBomRefPattern, tempDirPattern, macTempDirPattern, nixBuildDirPattern} {

 		s = pattern.ReplaceAll(s, []byte(""))

 	}

 	return s

  pname = "grype";

  version = "0.111.1";

  # required for tests

  __darwinAllowLocalNetworking = true;

  src = fetchFromGitHub {

    owner = "anchore";

    repo = "grype";

  vendorHash = "sha256-rsdZt+xKjIJpWS5pYx8A+ryY1D2WIKquKjsQBkxToUQ=";

  patches = [

    # several test golden files have unstable paths based on the platform

    # this patch adjusts the `Redact` helper to also work for builds by nix.

    ./0001-test_helpers-redact-support-nix.patch

  ];

  nativeBuildInputs = [ installShellFiles ];

  nativeCheckInputs = [

    # patch utility script

    patchShebangs grype/db/v5/distribution/testdata/tls/generate-x509-cert-pair.sh

    # FIXME: these tests fail when building with Nix

    substituteInPlace test/cli/config_test.go \

      --replace-fail "Test_configLoading" "Skip_configLoading"

    substituteInPlace test/cli/db_providers_test.go \

      --replace-fail "TestDBProviders" "SkipDBProviders"

    substituteInPlace grype/presenter/cyclonedx/presenter_test.go \

      --replace-fail "TestCycloneDxPresenterDir" "SkipCycloneDxPresenterDir" \

      --replace-fail "Test_CycloneDX_Valid" "Skip_CycloneDX_Valid"

    # remove tests that depend on docker

    substituteInPlace test/cli/cmd_test.go \

      --replace-fail "TestCmd" "SkipCmd"

    substituteInPlace grype/pkg/provider_test.go \

      --replace-fail "TestSyftLocationExcludes" "SkipSyftLocationExcludes"

    substituteInPlace test/cli/cmd_test.go \

      --replace-fail "Test_descriptorNameAndVersionSet" "Skip_descriptorNameAndVersionSet"

    # remove tests that depend on git

    substituteInPlace test/cli/db_validations_test.go \

      --replace-fail "TestDBValidations" "SkipDBValidations"

    substituteInPlace test/cli/registry_auth_test.go \

      --replace-fail "TestRegistryAuth" "SkipRegistryAuth"

    substituteInPlace test/cli/sbom_input_test.go \

      --replace-fail "TestSBOMInput_FromStdin" "SkipSBOMInput_FromStdin" \

      --replace-fail "TestSBOMInput_AsArgument" "SkipSBOMInput_AsArgument"

    substituteInPlace test/cli/subprocess_test.go \

      --replace-fail "TestSubprocessStdin" "SkipSubprocessStdin"

    substituteInPlace grype/internal/packagemetadata/names_test.go \

      --replace-fail "TestAllNames" "SkipAllNames"

    substituteInPlace test/cli/version_cmd_test.go \

      --replace-fail "TestVersionCmdPrintsToStdout" "SkipVersionCmdPrintsToStdout"

    substituteInPlace grype/presenter/sarif/presenter_test.go \

      --replace-fail "Test_SarifIsValid" "SkipTest_SarifIsValid"

    substituteInPlace test/cli/config_test.go \

      --replace-fail "Test_dpkgUseCPEsForEOLEnvVar" "SkipTest_dpkgUseCPEsForEOLEnvVar" \

      --replace-fail "Test_rpmUseCPEsForEOLEnvVar" "SkipTest_rpmUseCPEsForEOLEnvVar"

    # May fail on NixOS, probably due bug in how syft handles tmpfs.

    # See https://github.com/anchore/grype/issues/1822

    substituteInPlace grype/distro/distro_test.go \

      --replace-fail "Test_NewDistroFromRelease_Coverage" "SkipTest_NewDistroFromRelease_Coverage"

    # segfault

    rm grype/db/v5/namespace/cpe/namespace_test.go

  '';

  checkFlags =

    let

      skippedTests = [

        # depend on docker

        "TestCmd"

        "TestSyftLocationExcludes"

        "Test_descriptorNameAndVersionSet"

        # depend on .git

        "Test_configLoading"

        "TestDBProviders"

        "TestDBValidations"

        "TestRegistryAuth"

        "TestRegistryAuthRedactions"

        "TestSBOMInput_FromStdin"

        "TestSBOMInput_AsArgument"

        "TestSubprocessStdin"

        "TestAllNames"

        "TestVersionCmdPrintsToStdout"

        "Test_SarifIsValid"

        "Test_dpkgUseCPEsForEOLEnvVar"

        "Test_rpmUseCPEsForEOLEnvVar"

      ]

      ++ lib.optionals stdenv.isDarwin [

        # fails to generate x509 certificate

        # cat: /etc/ssl/openssl.cnf: Operation not permitted

        "Test_defaultHTTPClientHasCert"

      ];

    in

    [ "-skip=^${builtins.concatStringsSep "$|^" skippedTests}$" ];

  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''

    installShellCompletion --cmd grype \

      --bash <($out/bin/grype completion bash) \