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3f390a366c
Convert the "mktag" command to use parse-options.h instead of its own ad-hoc argc handling. This doesn't matter much in practice since it doesn't support any options, but removes another special-case in our codebase, and makes it easier to add options to it in the future. It does marginally improve the situation for programs that want to execute git commands in a consistent manner and e.g. always use --end-of-options. E.g. "gitaly" does that, and has a blacklist of built-ins that don't support --end-of-options. This is one less special case for it and other similar programs to support. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
#include "builtin.h"
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#include "parse-options.h"
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#include "tag.h"
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#include "replace-object.h"
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#include "object-store.h"
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#include "fsck.h"
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#include "config.h"
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static char const * const builtin_mktag_usage[] = {
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N_("git mktag"),
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NULL
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};
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static struct fsck_options fsck_options = FSCK_OPTIONS_STRICT;
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static int mktag_config(const char *var, const char *value, void *cb)
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{
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return fsck_config_internal(var, value, cb, &fsck_options);
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}
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static int mktag_fsck_error_func(struct fsck_options *o,
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const struct object_id *oid,
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enum object_type object_type,
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int msg_type, const char *message)
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{
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switch (msg_type) {
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case FSCK_WARN:
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case FSCK_ERROR:
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/*
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* We treat both warnings and errors as errors, things
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* like missing "tagger" lines are "only" warnings
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* under fsck, we've always considered them an error.
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*/
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fprintf_ln(stderr, "error: tag input does not pass fsck: %s", message);
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return 1;
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default:
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BUG("%d (FSCK_IGNORE?) should never trigger this callback",
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msg_type);
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}
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}
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static int verify_object_in_tag(struct object_id *tagged_oid, int *tagged_type)
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{
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int ret;
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enum object_type type;
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unsigned long size;
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void *buffer;
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const struct object_id *repl;
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buffer = read_object_file(tagged_oid, &type, &size);
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if (!buffer)
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die("could not read tagged object '%s'",
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oid_to_hex(tagged_oid));
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if (type != *tagged_type)
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die("object '%s' tagged as '%s', but is a '%s' type",
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oid_to_hex(tagged_oid),
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type_name(*tagged_type), type_name(type));
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repl = lookup_replace_object(the_repository, tagged_oid);
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ret = check_object_signature(the_repository, repl,
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buffer, size, type_name(*tagged_type));
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free(buffer);
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return ret;
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}
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int cmd_mktag(int argc, const char **argv, const char *prefix)
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{
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static struct option builtin_mktag_options[] = {
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OPT_END(),
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};
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struct strbuf buf = STRBUF_INIT;
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struct object_id tagged_oid;
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int tagged_type;
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struct object_id result;
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argc = parse_options(argc, argv, NULL,
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builtin_mktag_options,
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builtin_mktag_usage, 0);
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if (strbuf_read(&buf, 0, 0) < 0)
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die_errno("could not read from stdin");
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fsck_options.error_func = mktag_fsck_error_func;
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fsck_set_msg_type(&fsck_options, "extraheaderentry", "warn");
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/* config might set fsck.extraHeaderEntry=* again */
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git_config(mktag_config, NULL);
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if (fsck_tag_standalone(NULL, buf.buf, buf.len, &fsck_options,
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&tagged_oid, &tagged_type))
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die("tag on stdin did not pass our strict fsck check");
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if (verify_object_in_tag(&tagged_oid, &tagged_type))
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die("tag on stdin did not refer to a valid object");
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if (write_object_file(buf.buf, buf.len, tag_type, &result) < 0)
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die("unable to write tag file");
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strbuf_release(&buf);
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puts(oid_to_hex(&result));
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return 0;
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}
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