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#include "git-compat-util.h"
#include "hash.h"
#include "hex.h"
#include "reftable/system.h"
#include "reftable/reftable-error.h"
#include "reftable/reftable-merged.h"
#include "reftable/reftable-reader.h"
#include "reftable/reftable-stack.h"
#include "test-tool.h"
static void print_help(void)
{
printf("usage: dump [-st] arg\n\n"
"options: \n"
" -b dump blocks\n"
" -t dump table\n"
" -s dump stack\n"
" -6 sha256 hash format\n"
" -h this help\n"
"\n");
}
static int dump_table(struct reftable_merged_table *mt)
{
struct reftable_iterator it = { NULL };
struct reftable_ref_record ref = { NULL };
struct reftable_log_record log = { NULL };
const struct git_hash_algo *algop;
int err;
err = reftable_merged_table_init_ref_iterator(mt, &it);
if (err < 0)
return err;
err = reftable_iterator_seek_ref(&it, "");
if (err < 0)
return err;
algop = &hash_algos[hash_algo_by_id(reftable_merged_table_hash_id(mt))];
while (1) {
err = reftable_iterator_next_ref(&it, &ref);
if (err > 0)
break;
if (err < 0)
return err;
printf("ref{%s(%" PRIu64 ") ", ref.refname, ref.update_index);
switch (ref.value_type) {
case REFTABLE_REF_SYMREF:
printf("=> %s", ref.value.symref);
break;
case REFTABLE_REF_VAL2:
printf("val 2 %s", hash_to_hex_algop(ref.value.val2.value, algop));
printf("(T %s)", hash_to_hex_algop(ref.value.val2.target_value, algop));
break;
case REFTABLE_REF_VAL1:
printf("val 1 %s", hash_to_hex_algop(ref.value.val1, algop));
break;
case REFTABLE_REF_DELETION:
printf("delete");
break;
}
printf("}\n");
}
reftable_iterator_destroy(&it);
reftable_ref_record_release(&ref);
err = reftable_merged_table_init_log_iterator(mt, &it);
if (err < 0)
return err;
err = reftable_iterator_seek_log(&it, "");
if (err < 0)
return err;
while (1) {
err = reftable_iterator_next_log(&it, &log);
if (err > 0)
break;
if (err < 0)
return err;
switch (log.value_type) {
case REFTABLE_LOG_DELETION:
printf("log{%s(%" PRIu64 ") delete\n", log.refname,
log.update_index);
break;
case REFTABLE_LOG_UPDATE:
printf("log{%s(%" PRIu64 ") %s <%s> %" PRIu64 " %04d\n",
log.refname, log.update_index,
log.value.update.name ? log.value.update.name : "",
log.value.update.email ? log.value.update.email : "",
log.value.update.time,
log.value.update.tz_offset);
printf("%s => ", hash_to_hex_algop(log.value.update.old_hash, algop));
printf("%s\n\n%s\n}\n", hash_to_hex_algop(log.value.update.new_hash, algop),
log.value.update.message ? log.value.update.message : "");
break;
}
}
reftable_iterator_destroy(&it);
reftable_log_record_release(&log);
return 0;
}
static int dump_stack(const char *stackdir, uint32_t hash_id)
{
struct reftable_stack *stack = NULL;
struct reftable_write_options opts = { .hash_id = hash_id };
struct reftable_merged_table *merged = NULL;
int err = reftable_new_stack(&stack, stackdir, &opts);
if (err < 0)
goto done;
merged = reftable_stack_merged_table(stack);
err = dump_table(merged);
done:
if (stack)
reftable_stack_destroy(stack);
return err;
}
static int dump_reftable(const char *tablename)
{
struct reftable_block_source src = { 0 };
struct reftable_merged_table *mt = NULL;
struct reftable_reader *r = NULL;
int err;
err = reftable_block_source_from_file(&src, tablename);
if (err < 0)
goto done;
err = reftable_reader_new(&r, &src, tablename);
if (err < 0)
goto done;
err = reftable_merged_table_new(&mt, &r, 1,
reftable_reader_hash_id(r));
if (err < 0)
goto done;
err = dump_table(mt);
done:
reftable_merged_table_free(mt);
reftable_reader_decref(r);
return err;
}
int cmd__dump_reftable(int argc, const char **argv)
{
int err = 0;
int opt_dump_blocks = 0;
int opt_dump_table = 0;
int opt_dump_stack = 0;
uint32_t opt_hash_id = REFTABLE_HASH_SHA1;
const char *arg = NULL, *argv0 = argv[0];
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]))
opt_hash_id = REFTABLE_HASH_SHA256;
else if (!strcmp("-s", argv[1]))
opt_dump_stack = 1;
else if (!strcmp("-?", argv[1]) || !strcmp("-h", argv[1])) {
print_help();
return 2;
}
if (argc != 2) {
fprintf(stderr, "need argument\n");
print_help();
return 2;
}
arg = argv[1];
if (opt_dump_blocks) {
err = reftable_reader_print_blocks(arg);
} else if (opt_dump_table) {
err = dump_reftable(arg);
} else if (opt_dump_stack) {
err = dump_stack(arg, opt_hash_id);
}
if (err < 0) {
fprintf(stderr, "%s: %s: %s\n", argv0, arg,
reftable_error_str(err));
return 1;
}
return 0;
}
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