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archive-tar: huge offset and future timestamps would not work on 32-bit 

As we are not yet moving everything to size_t but still using ulong
internally when talking about the size of object, platforms with
32-bit long will not be able to produce tar archive with 4GB+ file,
and cannot grok 077777777777UL as a constant.  Disable the extended
header feature and do not test it on them.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2016-07-14 13:04:43 -07:00
parent 82246e075e
commit 29493589e9
2 changed files with 11 additions and 6 deletions
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5
archive-tar.c
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@ -25,8 +25,13 @@ static int write_tar_filter_archive(const struct archiver *ar,
*
* Likewise for the mtime (which happens to use a buffer of the same size).
*/
#if ULONG_MAX == 0xFFFFFFFF
#define USTAR_MAX_SIZE ULONG_MAX
#define USTAR_MAX_MTIME ULONG_MAX
#else
#define USTAR_MAX_SIZE 077777777777UL
#define USTAR_MAX_MTIME 077777777777UL
#endif
/* writes out the whole block, but only if it is full */
static void write_if_needed(void)

12
t/t5000-tar-tree.sh
View File

@ -347,7 +347,7 @@ test_lazy_prereq TAR_HUGE '
test_cmp expect actual
'
test_expect_success 'set up repository with huge blob' '
test_expect_success LONG_IS_64BIT 'set up repository with huge blob' '
obj_d=19 &&
obj_f=f9c8273ec45a8938e6999cb59b3ff66739902a &&
obj=${obj_d}${obj_f} &&
@ -360,7 +360,7 @@ test_expect_success 'set up repository with huge blob' '
# We expect git to die with SIGPIPE here (otherwise we
# would generate the whole 64GB).
test_expect_success 'generate tar with huge size' '
test_expect_success LONG_IS_64BIT 'generate tar with huge size' '
{
git archive HEAD
echo $? >exit-code
@ -369,13 +369,13 @@ test_expect_success 'generate tar with huge size' '
test_cmp expect exit-code
'
test_expect_success TAR_HUGE 'system tar can read our huge size' '
test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our huge size' '
echo 68719476737 >expect &&
tar_info huge.tar | cut -d" " -f1 >actual &&
test_cmp expect actual
'
test_expect_success 'set up repository with far-future commit' '
test_expect_success LONG_IS_64BIT 'set up repository with far-future commit' '
rm -f .git/index &&
echo content >file &&
git add file &&
@ -383,11 +383,11 @@ test_expect_success 'set up repository with far-future commit' '
git commit -m "tempori parendum"
'
test_expect_success 'generate tar with future mtime' '
test_expect_success LONG_IS_64BIT 'generate tar with future mtime' '
git archive HEAD >future.tar
'
test_expect_success TAR_HUGE 'system tar can read our future mtime' '
test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our future mtime' '
echo 4147 >expect &&
tar_info future.tar | cut -d" " -f2 >actual &&
test_cmp expect actual