Tar uncompress can accomodate paths w/ symlinks.

fileutil/fileutil_suite_test.go

@@ -59,10 +59,12 @@ func localCopyFSForGo122(dir string, fsys fs.FS) error {
 var _ = BeforeEach(func() {
 	assetsDirFS := os.DirFS(filepath.Join(".", "test_assets"))
 
-	testAssetsDir = GinkgoT().TempDir()
+	var err error
+	testAssetsDir, err = filepath.EvalSymlinks(GinkgoT().TempDir())
+	Expect(err).ToNot(HaveOccurred())
 
 	// TODO: use `os.CopyFS` instead of `localCopyFSForGo122` once we upgrade Golang versions
-	err := localCopyFSForGo122(testAssetsDir, assetsDirFS)
+	err = localCopyFSForGo122(testAssetsDir, assetsDirFS)
 	Expect(err).NotTo(HaveOccurred())
 
 	testAssetsFixtureDir = filepath.Join(testAssetsDir, "fixture_dir")

fileutil/tarball_compressor.go

@@ -57,15 +57,19 @@ func (c tarballCompressor) DecompressFileToDir(tarballPath string, dir string, o
 		sameOwnerOption = "--same-owner"
 	}
 
-	args := []string{sameOwnerOption, "-xzf", tarballPath, "-C", dir}
+	resolvedTarballPath, err := c.fs.ReadAndFollowLink(tarballPath)
+	if err != nil {
+		return bosherr.WrapError(err, "Resolving tarball path")
+	}
+	args := []string{sameOwnerOption, "-xzf", resolvedTarballPath, "-C", dir}
 	if options.StripComponents != 0 {
 		args = append(args, fmt.Sprintf("--strip-components=%d", options.StripComponents))
 	}
 
 	if options.PathInArchive != "" {
 		args = append(args, options.PathInArchive)
 	}
-	_, _, _, err := c.cmdRunner.RunCommand("tar", args...)
+	_, _, _, err = c.cmdRunner.RunCommand("tar", args...)
 	if err != nil {
 		return bosherr.WrapError(err, "Shelling out to tar")
 	}

fileutil/tarball_compressor_test.go

@@ -35,7 +35,9 @@ var _ = Describe("tarballCompressor", func() {
 		cmdRunner = boshsys.NewExecCmdRunner(logger)
 		fs = boshsys.NewOsFileSystem(logger)
 
-		dstDir = GinkgoT().TempDir()
+		var err error
+		dstDir, err = filepath.EvalSymlinks(GinkgoT().TempDir())
+		Expect(err).ToNot(HaveOccurred())
 		compressor = NewTarballCompressor(cmdRunner, fs)
 
 		fixtureSrcTgz = filepath.Join(testAssetsDir, "compressor-decompress-file-to-dir.tgz")

system/os_file_system_test.go

@@ -58,7 +58,7 @@ var _ = Describe("OS FileSystem", func() {
 			Expect(err).ToNot(HaveOccurred())
 
 			// If a regular user, the home directory will end with the username
-			expDir := fmt.Sprintf(`\%s`, filepath.Base(currentUser.Name))
+			expDir := fmt.Sprintf(`\%s`, filepath.Base(currentUser.Username))
 
 			// If a System or LocalSystem user, the home directory will be different
 			// ref: https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/manage/understand-security-identifiers