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git/builtin/mktag.c

109 lines
2.9 KiB

#include "builtin.h"
#include "parse-options.h"
#include "tag.h"
#include "replace-object.h"
#include "object-store.h"
#include "fsck.h"
#include "config.h"
static char const * const builtin_mktag_usage[] = {
N_("git mktag"),
NULL
};
static int option_strict = 1;
static struct fsck_options fsck_options = FSCK_OPTIONS_STRICT;
static int mktag_fsck_error_func(struct fsck_options *o,
const struct object_id *oid,
enum object_type object_type,
enum fsck_msg_type msg_type,
enum fsck_msg_id msg_id,
const char *message)
{
switch (msg_type) {
case FSCK_WARN:
if (!option_strict) {
fprintf_ln(stderr, _("warning: tag input does not pass fsck: %s"), message);
return 0;
}
/* fallthrough */
case FSCK_ERROR:
/*
* We treat both warnings and errors as errors, things
* like missing "tagger" lines are "only" warnings
* under fsck, we've always considered them an error.
*/
fprintf_ln(stderr, _("error: tag input does not pass fsck: %s"), message);
return 1;
default:
BUG(_("%d (FSCK_IGNORE?) should never trigger this callback"),
msg_type);
}
}
static int verify_object_in_tag(struct object_id *tagged_oid, int *tagged_type)
{
int ret;
enum object_type type;
unsigned long size;
void *buffer;
const struct object_id *repl;
buffer = read_object_file(tagged_oid, &type, &size);
if (!buffer)
die(_("could not read tagged object '%s'"),
oid_to_hex(tagged_oid));
if (type != *tagged_type)
die(_("object '%s' tagged as '%s', but is a '%s' type"),
oid_to_hex(tagged_oid),
type_name(*tagged_type), type_name(type));
repl = lookup_replace_object(the_repository, tagged_oid);
ret = check_object_signature(the_repository, repl,
buffer, size, type_name(*tagged_type),
NULL);
free(buffer);
return ret;
}
int cmd_mktag(int argc, const char **argv, const char *prefix)
{
static struct option builtin_mktag_options[] = {
OPT_BOOL(0, "strict", &option_strict,
N_("enable more strict checking")),
OPT_END(),
};
struct strbuf buf = STRBUF_INIT;
struct object_id tagged_oid;
int tagged_type;
struct object_id result;
argc = parse_options(argc, argv, NULL,
builtin_mktag_options,
builtin_mktag_usage, 0);
if (strbuf_read(&buf, 0, 0) < 0)
die_errno(_("could not read from stdin"));
fsck_options.error_func = mktag_fsck_error_func;
fsck_set_msg_type_from_ids(&fsck_options, FSCK_MSG_EXTRA_HEADER_ENTRY,
FSCK_WARN);
/* config might set fsck.extraHeaderEntry=* again */
git_config(git_fsck_config, &fsck_options);
if (fsck_tag_standalone(NULL, buf.buf, buf.len, &fsck_options,
&tagged_oid, &tagged_type))
die(_("tag on stdin did not pass our strict fsck check"));
if (verify_object_in_tag(&tagged_oid, &tagged_type))
die(_("tag on stdin did not refer to a valid object"));
if (write_object_file(buf.buf, buf.len, OBJ_TAG, &result) < 0)
die(_("unable to write tag file"));
strbuf_release(&buf);
puts(oid_to_hex(&result));
return 0;
}