undef/git-commit-vandalism
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

reftable: add dump utility

Browse Source 
provide a command-line utility for inspecting individual tables, and
inspecting a complete ref database

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Han-Wen Nienhuys 2021-10-07 20:25:14 +00:00 committed by Junio C Hamano
parent e48d427268
commit e793168364
1 changed files with 107 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

107
reftable/dump.c Normal file
View File

@ -0,0 +1,107 @@
/*
Copyright 2020 Google LLC
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
*/
#include "git-compat-util.h"
#include "hash.h"
#include "reftable-blocksource.h"
#include "reftable-error.h"
#include "reftable-merged.h"
#include "reftable-record.h"
#include "reftable-tests.h"
#include "reftable-writer.h"
#include "reftable-iterator.h"
#include "reftable-reader.h"
#include "reftable-stack.h"
#include "reftable-generic.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
static int compact_stack(const char *stackdir)
{
struct reftable_stack *stack = NULL;
struct reftable_write_options cfg = { 0 };
int err = reftable_new_stack(&stack, stackdir, cfg);
if (err < 0)
goto done;
err = reftable_stack_compact_all(stack, NULL);
if (err < 0)
goto done;
done:
if (stack) {
reftable_stack_destroy(stack);
}
return err;
}
static void print_help(void)
{
printf("usage: dump [-cst] arg\n\n"
"options: \n"
" -c compact\n"
" -t dump table\n"
" -s dump stack\n"
" -6 sha256 hash format\n"
" -h this help\n"
"\n");
}
int reftable_dump_main(int argc, char *const *argv)
{
int err = 0;
int opt_dump_table = 0;
int opt_dump_stack = 0;
int opt_compact = 0;
uint32_t opt_hash_id = GIT_SHA1_FORMAT_ID;
const char *arg = NULL, *argv0 = argv[0];
for (; argc > 1; argv++, argc--)
if (*argv[1] != '-')
break;
else if (!strcmp("-t", argv[1]))
opt_dump_table = 1;
else if (!strcmp("-6", argv[1]))
opt_hash_id = GIT_SHA256_FORMAT_ID;
else if (!strcmp("-s", argv[1]))
opt_dump_stack = 1;
else if (!strcmp("-c", argv[1]))
opt_compact = 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_table) {
err = reftable_reader_print_file(arg);
} else if (opt_dump_stack) {
err = reftable_stack_print_directory(arg, opt_hash_id);
} else if (opt_compact) {
err = compact_stack(arg);
}
if (err < 0) {
fprintf(stderr, "%s: %s: %s\n", argv0, arg,
reftable_error_str(err));
return 1;
}
return 0;
}