diff options
Diffstat (limited to 'refs.c')
| -rw-r--r-- | refs.c | 407 |
1 files changed, 148 insertions, 259 deletions
@@ -384,14 +384,6 @@ char *refs_resolve_refdup(struct ref_store *refs, return xstrdup_or_null(result); } -char *resolve_refdup(const char *refname, int resolve_flags, - struct object_id *oid, int *flags) -{ - return refs_resolve_refdup(get_main_ref_store(the_repository), - refname, resolve_flags, - oid, flags); -} - /* The argument to for_each_filter_refs */ struct for_each_ref_filter { const char *pattern; @@ -400,19 +392,18 @@ struct for_each_ref_filter { void *cb_data; }; -int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) +int refs_read_ref_full(struct ref_store *refs, const char *refname, + int resolve_flags, struct object_id *oid, int *flags) { - struct ref_store *refs = get_main_ref_store(the_repository); - if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) return 0; return -1; } -int read_ref(const char *refname, struct object_id *oid) +int refs_read_ref(struct ref_store *refs, const char *refname, struct object_id *oid) { - return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); + return refs_read_ref_full(refs, refname, RESOLVE_REF_READING, oid, NULL); } int refs_ref_exists(struct ref_store *refs, const char *refname) @@ -421,11 +412,6 @@ int refs_ref_exists(struct ref_store *refs, const char *refname) NULL, NULL); } -int ref_exists(const char *refname) -{ - return refs_ref_exists(get_main_ref_store(the_repository), refname); -} - static int for_each_filter_refs(const char *refname, const struct object_id *oid, int flags, void *data) @@ -477,7 +463,8 @@ static int warn_if_dangling_symref(const char *refname, if (!(flags & REF_ISSYMREF)) return 0; - resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); + resolves_to = refs_resolve_ref_unsafe(get_main_ref_store(the_repository), + refname, 0, NULL, NULL); if (!resolves_to || (d->refname ? strcmp(resolves_to, d->refname) @@ -498,7 +485,8 @@ void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) data.refname = refname; data.refnames = NULL; data.msg_fmt = msg_fmt; - for_each_rawref(warn_if_dangling_symref, &data); + refs_for_each_rawref(get_main_ref_store(the_repository), + warn_if_dangling_symref, &data); } void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) @@ -509,7 +497,8 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_li data.refname = NULL; data.refnames = refnames; data.msg_fmt = msg_fmt; - for_each_rawref(warn_if_dangling_symref, &data); + refs_for_each_rawref(get_main_ref_store(the_repository), + warn_if_dangling_symref, &data); } int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) @@ -517,32 +506,17 @@ int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); } -int for_each_tag_ref(each_ref_fn fn, void *cb_data) -{ - return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); -} - int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) { return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); } -int for_each_branch_ref(each_ref_fn fn, void *cb_data) -{ - return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); -} - int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) { return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); } -int for_each_remote_ref(each_ref_fn fn, void *cb_data) -{ - return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); -} - -int head_ref_namespaced(each_ref_fn fn, void *cb_data) +int refs_head_ref_namespaced(struct ref_store *refs, each_ref_fn fn, void *cb_data) { struct strbuf buf = STRBUF_INIT; int ret = 0; @@ -550,7 +524,7 @@ int head_ref_namespaced(each_ref_fn fn, void *cb_data) int flag; strbuf_addf(&buf, "%sHEAD", get_git_namespace()); - if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) + if (!refs_read_ref_full(refs, buf.buf, RESOLVE_REF_READING, &oid, &flag)) ret = fn(buf.buf, &oid, flag, cb_data); strbuf_release(&buf); @@ -583,8 +557,8 @@ void normalize_glob_ref(struct string_list_item *item, const char *prefix, strbuf_release(&normalized_pattern); } -int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, - const char *prefix, void *cb_data) +int refs_for_each_glob_ref_in(struct ref_store *refs, each_ref_fn fn, + const char *pattern, const char *prefix, void *cb_data) { struct strbuf real_pattern = STRBUF_INIT; struct for_each_ref_filter filter; @@ -607,15 +581,16 @@ int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, filter.prefix = prefix; filter.fn = fn; filter.cb_data = cb_data; - ret = for_each_ref(for_each_filter_refs, &filter); + ret = refs_for_each_ref(refs, for_each_filter_refs, &filter); strbuf_release(&real_pattern); return ret; } -int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) +int refs_for_each_glob_ref(struct ref_store *refs, each_ref_fn fn, + const char *pattern, void *cb_data) { - return for_each_glob_ref_in(fn, pattern, NULL, cb_data); + return refs_for_each_glob_ref_in(refs, fn, pattern, NULL, cb_data); } const char *prettify_refname(const char *name) @@ -844,7 +819,22 @@ int is_per_worktree_ref(const char *refname) starts_with(refname, "refs/rewritten/"); } -static int is_pseudoref_syntax(const char *refname) +int is_pseudo_ref(const char *refname) +{ + static const char * const pseudo_refs[] = { + "FETCH_HEAD", + "MERGE_HEAD", + }; + size_t i; + + for (i = 0; i < ARRAY_SIZE(pseudo_refs); i++) + if (!strcmp(refname, pseudo_refs[i])) + return 1; + + return 0; +} + +static int is_root_ref_syntax(const char *refname) { const char *c; @@ -853,56 +843,37 @@ static int is_pseudoref_syntax(const char *refname) return 0; } - /* - * HEAD is not a pseudoref, but it certainly uses the - * pseudoref syntax. - */ return 1; } -int is_pseudoref(struct ref_store *refs, const char *refname) +int is_root_ref(const char *refname) { - static const char *const irregular_pseudorefs[] = { + static const char *const irregular_root_refs[] = { + "HEAD", "AUTO_MERGE", "BISECT_EXPECTED_REV", "NOTES_MERGE_PARTIAL", "NOTES_MERGE_REF", "MERGE_AUTOSTASH", }; - struct object_id oid; size_t i; - if (!is_pseudoref_syntax(refname)) + if (!is_root_ref_syntax(refname) || + is_pseudo_ref(refname)) return 0; - if (ends_with(refname, "_HEAD")) { - refs_resolve_ref_unsafe(refs, refname, - RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE, - &oid, NULL); - return !is_null_oid(&oid); - } - - for (i = 0; i < ARRAY_SIZE(irregular_pseudorefs); i++) - if (!strcmp(refname, irregular_pseudorefs[i])) { - refs_resolve_ref_unsafe(refs, refname, - RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE, - &oid, NULL); - return !is_null_oid(&oid); - } - - return 0; -} + if (ends_with(refname, "_HEAD")) + return 1; -int is_headref(struct ref_store *refs, const char *refname) -{ - if (!strcmp(refname, "HEAD")) - return refs_ref_exists(refs, refname); + for (i = 0; i < ARRAY_SIZE(irregular_root_refs); i++) + if (!strcmp(refname, irregular_root_refs[i])) + return 1; return 0; } static int is_current_worktree_ref(const char *ref) { - return is_pseudoref_syntax(ref) || is_per_worktree_ref(ref); + return is_root_ref_syntax(ref) || is_per_worktree_ref(ref); } enum ref_worktree_type parse_worktree_ref(const char *maybe_worktree_ref, @@ -991,13 +962,6 @@ int refs_delete_ref(struct ref_store *refs, const char *msg, return 0; } -int delete_ref(const char *msg, const char *refname, - const struct object_id *old_oid, unsigned int flags) -{ - return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, - old_oid, flags); -} - static void copy_reflog_msg(struct strbuf *sb, const char *msg) { char c; @@ -1190,11 +1154,6 @@ struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, return tr; } -struct ref_transaction *ref_transaction_begin(struct strbuf *err) -{ - return ref_store_transaction_begin(get_main_ref_store(the_repository), err); -} - void ref_transaction_free(struct ref_transaction *transaction) { size_t i; @@ -1217,6 +1176,8 @@ void ref_transaction_free(struct ref_transaction *transaction) for (i = 0; i < transaction->nr; i++) { free(transaction->updates[i]->msg); + free((char *)transaction->updates[i]->new_target); + free((char *)transaction->updates[i]->old_target); free(transaction->updates[i]); } free(transaction->updates); @@ -1228,6 +1189,7 @@ struct ref_update *ref_transaction_add_update( const char *refname, unsigned int flags, const struct object_id *new_oid, const struct object_id *old_oid, + const char *new_target, const char *old_target, const char *msg) { struct ref_update *update; @@ -1235,16 +1197,24 @@ struct ref_update *ref_transaction_add_update( if (transaction->state != REF_TRANSACTION_OPEN) BUG("update called for transaction that is not open"); + if (old_oid && old_target) + BUG("only one of old_oid and old_target should be non NULL"); + if (new_oid && new_target) + BUG("only one of new_oid and new_target should be non NULL"); + FLEX_ALLOC_STR(update, refname, refname); ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); transaction->updates[transaction->nr++] = update; update->flags = flags; - if (flags & REF_HAVE_NEW) + update->new_target = xstrdup_or_null(new_target); + update->old_target = xstrdup_or_null(old_target); + if ((flags & REF_HAVE_NEW) && new_oid) oidcpy(&update->new_oid, new_oid); - if (flags & REF_HAVE_OLD) + if ((flags & REF_HAVE_OLD) && old_oid) oidcpy(&update->old_oid, old_oid); + update->msg = normalize_reflog_message(msg); return update; } @@ -1253,6 +1223,8 @@ int ref_transaction_update(struct ref_transaction *transaction, const char *refname, const struct object_id *new_oid, const struct object_id *old_oid, + const char *new_target, + const char *old_target, unsigned int flags, const char *msg, struct strbuf *err) { @@ -1267,6 +1239,13 @@ int ref_transaction_update(struct ref_transaction *transaction, return -1; } + if (!(flags & REF_SKIP_REFNAME_VERIFICATION) && + is_pseudo_ref(refname)) { + strbuf_addf(err, _("refusing to update pseudoref '%s'"), + refname); + return -1; + } + if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); @@ -1278,9 +1257,11 @@ int ref_transaction_update(struct ref_transaction *transaction, flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); + flags |= (new_target ? REF_HAVE_NEW : 0) | (old_target ? REF_HAVE_OLD : 0); ref_transaction_add_update(transaction, refname, flags, - new_oid, old_oid, msg); + new_oid, old_oid, new_target, + old_target, msg); return 0; } @@ -1295,7 +1276,8 @@ int ref_transaction_create(struct ref_transaction *transaction, return 1; } return ref_transaction_update(transaction, refname, new_oid, - null_oid(), flags, msg, err); + null_oid(), NULL, NULL, flags, + msg, err); } int ref_transaction_delete(struct ref_transaction *transaction, @@ -1308,7 +1290,8 @@ int ref_transaction_delete(struct ref_transaction *transaction, BUG("delete called with old_oid set to zeros"); return ref_transaction_update(transaction, refname, null_oid(), old_oid, - flags, msg, err); + NULL, NULL, flags, + msg, err); } int ref_transaction_verify(struct ref_transaction *transaction, @@ -1321,6 +1304,7 @@ int ref_transaction_verify(struct ref_transaction *transaction, BUG("verify called with old_oid set to NULL"); return ref_transaction_update(transaction, refname, NULL, old_oid, + NULL, NULL, flags, NULL, err); } @@ -1335,8 +1319,8 @@ int refs_update_ref(struct ref_store *refs, const char *msg, t = ref_store_transaction_begin(refs, &err); if (!t || - ref_transaction_update(t, refname, new_oid, old_oid, flags, msg, - &err) || + ref_transaction_update(t, refname, new_oid, old_oid, NULL, NULL, + flags, msg, &err) || ref_transaction_commit(t, &err)) { ret = 1; ref_transaction_free(t); @@ -1363,15 +1347,6 @@ int refs_update_ref(struct ref_store *refs, const char *msg, return 0; } -int update_ref(const char *msg, const char *refname, - const struct object_id *new_oid, - const struct object_id *old_oid, - unsigned int flags, enum action_on_err onerr) -{ - return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, - old_oid, flags, onerr); -} - /* * Check that the string refname matches a rule of the form * "{prefix}%.*s{suffix}". So "foo/bar/baz" would match the rule @@ -1473,12 +1448,6 @@ char *refs_shorten_unambiguous_ref(struct ref_store *refs, return xstrdup(refname); } -char *shorten_unambiguous_ref(const char *refname, int strict) -{ - return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), - refname, strict); -} - int parse_hide_refs_config(const char *var, const char *value, const char *section, struct strvec *hide_refs) { @@ -1597,11 +1566,6 @@ int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) return 0; } -int head_ref(each_ref_fn fn, void *cb_data) -{ - return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); -} - struct ref_iterator *refs_ref_iterator_begin( struct ref_store *refs, const char *prefix, @@ -1696,28 +1660,12 @@ int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) return do_for_each_ref(refs, "", NULL, fn, 0, 0, cb_data); } -int for_each_ref(each_ref_fn fn, void *cb_data) -{ - return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); -} - int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, each_ref_fn fn, void *cb_data) { return do_for_each_ref(refs, prefix, NULL, fn, strlen(prefix), 0, cb_data); } -int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) -{ - return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); -} - -int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data) -{ - return do_for_each_ref(get_main_ref_store(the_repository), - prefix, NULL, fn, 0, 0, cb_data); -} - int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, const char **exclude_patterns, each_ref_fn fn, void *cb_data) @@ -1733,14 +1681,14 @@ int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_dat DO_FOR_EACH_INCLUDE_BROKEN, cb_data); } -int for_each_namespaced_ref(const char **exclude_patterns, - each_ref_fn fn, void *cb_data) +int refs_for_each_namespaced_ref(struct ref_store *refs, + const char **exclude_patterns, + each_ref_fn fn, void *cb_data) { struct strbuf buf = STRBUF_INIT; int ret; strbuf_addf(&buf, "%srefs/", get_git_namespace()); - ret = do_for_each_ref(get_main_ref_store(the_repository), - buf.buf, exclude_patterns, fn, 0, 0, cb_data); + ret = do_for_each_ref(refs, buf.buf, exclude_patterns, fn, 0, 0, cb_data); strbuf_release(&buf); return ret; } @@ -1751,11 +1699,6 @@ int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) DO_FOR_EACH_INCLUDE_BROKEN, cb_data); } -int for_each_rawref(each_ref_fn fn, void *cb_data) -{ - return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); -} - int refs_for_each_include_root_refs(struct ref_store *refs, each_ref_fn fn, void *cb_data) { @@ -1876,43 +1819,12 @@ done: return result; } -static int is_special_ref(const char *refname) -{ - /* - * Special references are refs that have different semantics compared - * to "normal" refs. These refs can thus not be stored in the ref - * backend, but must always be accessed via the filesystem. The - * following refs are special: - * - * - FETCH_HEAD may contain multiple object IDs, and each one of them - * carries additional metadata like where it came from. - * - * - MERGE_HEAD may contain multiple object IDs when merging multiple - * heads. - * - * Reading, writing or deleting references must consistently go either - * through the filesystem (special refs) or through the reference - * backend (normal ones). - */ - static const char * const special_refs[] = { - "FETCH_HEAD", - "MERGE_HEAD", - }; - size_t i; - - for (i = 0; i < ARRAY_SIZE(special_refs); i++) - if (!strcmp(refname, special_refs[i])) - return 1; - - return 0; -} - int refs_read_raw_ref(struct ref_store *ref_store, const char *refname, struct object_id *oid, struct strbuf *referent, unsigned int *type, int *failure_errno) { assert(failure_errno); - if (is_special_ref(refname)) + if (is_pseudo_ref(refname)) return refs_read_special_head(ref_store, refname, oid, referent, type, failure_errno); @@ -2021,13 +1933,6 @@ int refs_init_db(struct ref_store *refs, int flags, struct strbuf *err) return refs->be->init_db(refs, flags, err); } -const char *resolve_ref_unsafe(const char *refname, int resolve_flags, - struct object_id *oid, int *flags) -{ - return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, - resolve_flags, oid, flags); -} - int resolve_gitlink_ref(const char *submodule, const char *refname, struct object_id *oid) { @@ -2266,26 +2171,27 @@ int peel_iterated_oid(const struct object_id *base, struct object_id *peeled) return peel_object(base, peeled) ? -1 : 0; } -int refs_create_symref(struct ref_store *refs, - const char *ref_target, - const char *refs_heads_master, - const char *logmsg) +int refs_update_symref(struct ref_store *refs, const char *ref, + const char *target, const char *logmsg) { - char *msg; - int retval; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; + int ret = 0; - msg = normalize_reflog_message(logmsg); - retval = refs->be->create_symref(refs, ref_target, refs_heads_master, - msg); - free(msg); - return retval; -} + transaction = ref_store_transaction_begin(refs, &err); + if (!transaction || + ref_transaction_update(transaction, ref, NULL, NULL, + target, NULL, REF_NO_DEREF, + logmsg, &err) || + ref_transaction_commit(transaction, &err)) { + ret = error("%s", err.buf); + } -int create_symref(const char *ref_target, const char *refs_heads_master, - const char *logmsg) -{ - return refs_create_symref(get_main_ref_store(the_repository), ref_target, - refs_heads_master, logmsg); + strbuf_release(&err); + if (transaction) + ref_transaction_free(transaction); + + return ret; } int ref_update_reject_duplicates(struct string_list *refnames, @@ -2338,10 +2244,22 @@ static int run_transaction_hook(struct ref_transaction *transaction, struct ref_update *update = transaction->updates[i]; strbuf_reset(&buf); - strbuf_addf(&buf, "%s %s %s\n", - oid_to_hex(&update->old_oid), - oid_to_hex(&update->new_oid), - update->refname); + + if (!(update->flags & REF_HAVE_OLD)) + strbuf_addf(&buf, "%s ", oid_to_hex(null_oid())); + else if (update->old_target) + strbuf_addf(&buf, "ref:%s ", update->old_target); + else + strbuf_addf(&buf, "%s ", oid_to_hex(&update->old_oid)); + + if (!(update->flags & REF_HAVE_NEW)) + strbuf_addf(&buf, "%s ", oid_to_hex(null_oid())); + else if (update->new_target) + strbuf_addf(&buf, "ref:%s ", update->new_target); + else + strbuf_addf(&buf, "%s ", oid_to_hex(&update->new_oid)); + + strbuf_addf(&buf, "%s\n", update->refname); if (write_in_full(proc.in, buf.buf, buf.len) < 0) { if (errno != EPIPE) { @@ -2581,11 +2499,6 @@ int refs_for_each_reflog(struct ref_store *refs, each_reflog_fn fn, void *cb_dat do_for_each_reflog_helper, &hp); } -int for_each_reflog(each_reflog_fn fn, void *cb_data) -{ - return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); -} - int refs_for_each_reflog_ent_reverse(struct ref_store *refs, const char *refname, each_reflog_ent_fn fn, @@ -2595,58 +2508,28 @@ int refs_for_each_reflog_ent_reverse(struct ref_store *refs, fn, cb_data); } -int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, - void *cb_data) -{ - return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), - refname, fn, cb_data); -} - int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, each_reflog_ent_fn fn, void *cb_data) { return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); } -int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, - void *cb_data) -{ - return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, - fn, cb_data); -} - int refs_reflog_exists(struct ref_store *refs, const char *refname) { return refs->be->reflog_exists(refs, refname); } -int reflog_exists(const char *refname) -{ - return refs_reflog_exists(get_main_ref_store(the_repository), refname); -} - int refs_create_reflog(struct ref_store *refs, const char *refname, struct strbuf *err) { return refs->be->create_reflog(refs, refname, err); } -int safe_create_reflog(const char *refname, struct strbuf *err) -{ - return refs_create_reflog(get_main_ref_store(the_repository), refname, - err); -} - int refs_delete_reflog(struct ref_store *refs, const char *refname) { return refs->be->delete_reflog(refs, refname); } -int delete_reflog(const char *refname) -{ - return refs_delete_reflog(get_main_ref_store(the_repository), refname); -} - int refs_reflog_expire(struct ref_store *refs, const char *refname, unsigned int flags, @@ -2660,19 +2543,6 @@ int refs_reflog_expire(struct ref_store *refs, cleanup_fn, policy_cb_data); } -int reflog_expire(const char *refname, - unsigned int flags, - reflog_expiry_prepare_fn prepare_fn, - reflog_expiry_should_prune_fn should_prune_fn, - reflog_expiry_cleanup_fn cleanup_fn, - void *policy_cb_data) -{ - return refs_reflog_expire(get_main_ref_store(the_repository), - refname, flags, - prepare_fn, should_prune_fn, - cleanup_fn, policy_cb_data); -} - int initial_ref_transaction_commit(struct ref_transaction *transaction, struct strbuf *err) { @@ -2751,12 +2621,6 @@ out: return ret; } -int delete_refs(const char *msg, struct string_list *refnames, - unsigned int flags) -{ - return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); -} - int refs_rename_ref(struct ref_store *refs, const char *oldref, const char *newref, const char *logmsg) { @@ -2769,11 +2633,6 @@ int refs_rename_ref(struct ref_store *refs, const char *oldref, return retval; } -int rename_ref(const char *oldref, const char *newref, const char *logmsg) -{ - return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); -} - int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, const char *newref, const char *logmsg) { @@ -2786,7 +2645,37 @@ int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, return retval; } -int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) +const char *ref_update_original_update_refname(struct ref_update *update) { - return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); + while (update->parent_update) + update = update->parent_update; + + return update->refname; +} + +int ref_update_has_null_new_value(struct ref_update *update) +{ + return !update->new_target && is_null_oid(&update->new_oid); +} + +int ref_update_check_old_target(const char *referent, struct ref_update *update, + struct strbuf *err) +{ + if (!update->old_target) + BUG("called without old_target set"); + + if (!strcmp(referent, update->old_target)) + return 0; + + if (!strcmp(referent, "")) + strbuf_addf(err, "verifying symref target: '%s': " + "reference is missing but expected %s", + ref_update_original_update_refname(update), + update->old_target); + else + strbuf_addf(err, "verifying symref target: '%s': " + "is at %s but expected %s", + ref_update_original_update_refname(update), + referent, update->old_target); + return -1; } |