}
}

func TestDirAndSymlinkStats(t *testing.T) {
	testenv.MustHaveSymlink(t)
	t.Parallel()

	tmpdir := t.TempDir()
	dir := filepath.Join(tmpdir, "dir")
	if err := os.Mkdir(dir, 0777); err != nil {
		t.Fatal(err)
	}
	testDirStats(t, dir)

	dirlink := filepath.Join(tmpdir, "link")
	if err := os.Symlink(dir, dirlink); err != nil {
		t.Fatal(err)
	}
	testSymlinkStats(t, dirlink, true)

func genAuxMeta(t *testing.T, dstdir string) (string, string) {
	// Do a GOCOVERDIR=<tmp> go run hello.go
	src := filepath.Join(dstdir, "hello.go")
	if err := os.WriteFile(src, []byte(hellogo), 0777); err != nil {
		t.Fatalf("write failed: %v", err)
	}
	args := []string{"run", "-covermode=" + testing.CoverMode(), src}
	cmd := exec.Command(testenv.GoToolPath(t), args...)

00000290  73 bb b3 43 77 8d 0c 1c  f1 0f a1 d8 40 83 61 c9  |s..Cw.......@.a.|
000002a0  4c 72 2b 9d ae db 46 06  06 4d f4 c1 b3 3e c0 d1  |Lr+...F..M...>..|
000002b0  bd 42 d4 db fe 3d 13 60  84 5c 21 d3 3b e9 fa e7  |.B...=.`.\!.;...|
000002c0  16 03 03 00 ac 0c 00 00  a8 03 00 1d 20 ca 74 42  |............ .tB|
000002d0  03 67 f2 31 ac 68 dd 2c  db 23 7d 2c 84 df e9 50  |.g.1.h.,.#},...P|

	"strings"
)

// OverlayDir makes a minimal-overhead copy of srcRoot in which new files may be added.
func OverlayDir(dstRoot, srcRoot string) error {
	dstRoot = filepath.Clean(dstRoot)
	if err := os.MkdirAll(dstRoot, 0777); err != nil {
		return err
	}

	srcRoot, err := filepath.Abs(srcRoot)
	if err != nil {
		return err
	}

	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {

00000010  42 c7 73 06 75 ef 28 ff  87 46 49 af 3a 3b cb bb  |B.s.u.(..FI.:;..|
00000020  ff 6e e3 60 11 40 2c b8  40 87 5c 20 86 3d de c2  |.n.`.@,.@.\ .=..|
00000030  18 41 ff 1a dc 00 77 4e  17 0b 36 f3 69 92 d7 04  |.A....wN..6.i...|
00000040  c4 c6 39 ad ed f7 06 23  8c 52 50 da cc a8 00 00  |..9....#.RP.....|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|

	0xcf, 0xc9, 0x25, 0x69, 0x68, 0xd8, 0x7c, 0x77, 0xbf, 0x97, 0xff, 0x6b, 0x02, 0x5b, 0x9d, 0xed,
	0x04, 0x79, 0xcc, 0x24, 0x91, 0x67, 0x86, 0xcc, 0xa1, 0x66, 0x77, 0x83, 0xf8, 0x51, 0x9b, 0x6c,
	0x98, 0x2e, 0x0d, 0x69, 0x4c, 0x38, 0x75, 0x50, 0x14, 0x33, 0xce, 0xb4, 0x7a, 0x8e, 0x44, 0x24,
	0xf2, 0x90, 0x40, 0xa2, 0x02, 0xd9, 0x58, 0x77, 0x3d, 0xde, 0x4e, 0x8f, 0x90, 0xcd, 0x02, 0xd3,

	{"0200000000000000000000", 0, 1 << 61, nil},
	{"0b", 0, 0, ErrSyntax},
	{"0B", 0, 0, ErrSyntax},
	{"0b101", 0, 5, nil},
	{"0B101", 0, 5, nil},
	{"0o", 0, 0, ErrSyntax},
	{"0O", 0, 0, ErrSyntax},
	{"0o377", 0, 255, nil},
	{"0O377", 0, 255, nil},

	// underscores allowed with base == 0 only
	{"1_2_3_4_5", 0, 12345, nil}, // base 0 => 10
	{"_12345", 0, 0, ErrSyntax},
	{"1__2345", 0, 0, ErrSyntax},
	{"12345_", 0, 0, ErrSyntax},

                outputFile.set(File("${TextUtil.normaliseFileSeparators(outputFile.absolutePath)}"))
            }

            producer {
                permissions.set(System.getProperty("permissions", "0777"))
                outputFile.set(layout.buildDirectory.file("file.txt"))
            }
        """.stripIndent()

        when: "1st run"
        succeeds "consumer"

00000020  6f 2d b0 ac 51 ed 14 ef  68 ca 42 c5 4c 85 f6 26  |o-..Q...h.B.L..&|
00000030  0d a4 ad a8 f5 14 64 4f  b9 c3 fb 1e 55 c1 1f c7  |......dO....U...|
00000040  31 57 72 68 db 03 37 a8  c9 07 f4 ca 62 6c 5c f3  |1Wrh..7.....bl\.|
00000050  8b 5a 3d 76 dd 63 ea 68  61 6b a1 2d 95 49 38 16  |.Z=v.c.hak.-.I8.|
00000060  7e 51 5c e5 15 c0 58 7d  c5 67 4a 6f 64 b6 79 1a  |~Q\...X}.gJod.y.|

74\227b\036>\352W6\270\344\342\254=\352\300L=\036j\257;\364\233\037\276\334\237\326\266\367o\2066\033\006c\267\336o\220\275\327i\013\276\217\347\215>O\336)\272J\243\306=\254\\q=:\037|>H\345\212\276P@:>\237\021\'\2715\235x\276\245\325\2266\224\2603>]\300L\270\376\255\313\274Y\220\366=\024\23248,\035\006>\032H\321;%F\2377`Vb\274\221\013b\270\254\034\030\274\333z\252\275\232M\347\267\033k\371=\347y>\274\220\217\244;\313\274\264\275\323\034\302\267\030\013!\270L\ra6\205\216\334\275TF\032=\374\273:\2...