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reftable/dump: support dumping a table's block structure

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We're about to introduce new configs that will allow users to have more
control over how exactly reftables are written. To verify that these
configs are effective we will need to take a peak into the actual blocks
written by the reftable backend.

Introduce a new mode to the dumping logic that prints out the block
structure. This logic can be invoked via `test-tool dump-reftables -b`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2024-05-13 10:18:13 +02:00
committed by Junio C Hamano
parent c22d75b027
commit fcf341890e
4 changed files with 174 additions and 1 deletions
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8
reftable/dump.c
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@ -48,6 +48,7 @@ static void print_help(void)
printf("usage: dump [-cst] arg\n\n"
"options: \n"
" -c compact\n"
" -b dump blocks\n"
" -t dump table\n"
" -s dump stack\n"
" -6 sha256 hash format\n"
@ -58,6 +59,7 @@ static void print_help(void)
int reftable_dump_main(int argc, char *const *argv)
{
int err = 0;
int opt_dump_blocks = 0;
int opt_dump_table = 0;
int opt_dump_stack = 0;
int opt_compact = 0;
@ -67,6 +69,8 @@ int reftable_dump_main(int argc, char *const *argv)
for (; argc > 1; argv++, argc--)
if (*argv[1] != '-')
break;
else if (!strcmp("-b", argv[1]))
opt_dump_blocks = 1;
else if (!strcmp("-t", argv[1]))
opt_dump_table = 1;
else if (!strcmp("-6", argv[1]))
@ -88,7 +92,9 @@ int reftable_dump_main(int argc, char *const *argv)
arg = argv[1];
if (opt_dump_table) {
if (opt_dump_blocks) {
err = reftable_reader_print_blocks(arg);
} else if (opt_dump_table) {
err = reftable_reader_print_file(arg);
} else if (opt_dump_stack) {
err = reftable_stack_print_directory(arg, opt_hash_id);