| /* |
| * "git fetch" |
| */ |
| #include "builtin.h" |
| #include "advice.h" |
| #include "config.h" |
| #include "gettext.h" |
| #include "environment.h" |
| #include "hex.h" |
| #include "repository.h" |
| #include "refs.h" |
| #include "refspec.h" |
| #include "object-name.h" |
| #include "object-store-ll.h" |
| #include "oidset.h" |
| #include "oid-array.h" |
| #include "commit.h" |
| #include "string-list.h" |
| #include "remote.h" |
| #include "transport.h" |
| #include "run-command.h" |
| #include "parse-options.h" |
| #include "sigchain.h" |
| #include "submodule-config.h" |
| #include "submodule.h" |
| #include "connected.h" |
| #include "strvec.h" |
| #include "utf8.h" |
| #include "pager.h" |
| #include "path.h" |
| #include "pkt-line.h" |
| #include "list-objects-filter-options.h" |
| #include "commit-reach.h" |
| #include "branch.h" |
| #include "promisor-remote.h" |
| #include "commit-graph.h" |
| #include "shallow.h" |
| #include "trace.h" |
| #include "trace2.h" |
| #include "bundle-uri.h" |
| |
| #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000) |
| |
| static const char * const builtin_fetch_usage[] = { |
| N_("git fetch [<options>] [<repository> [<refspec>...]]"), |
| N_("git fetch [<options>] <group>"), |
| N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"), |
| N_("git fetch --all [<options>]"), |
| NULL |
| }; |
| |
| enum { |
| TAGS_UNSET = 0, |
| TAGS_DEFAULT = 1, |
| TAGS_SET = 2 |
| }; |
| |
| enum display_format { |
| DISPLAY_FORMAT_FULL, |
| DISPLAY_FORMAT_COMPACT, |
| DISPLAY_FORMAT_PORCELAIN, |
| }; |
| |
| struct display_state { |
| struct strbuf buf; |
| |
| int refcol_width; |
| enum display_format format; |
| |
| char *url; |
| int url_len, shown_url; |
| }; |
| |
| static uint64_t forced_updates_ms = 0; |
| static int prefetch = 0; |
| static int prune = -1; /* unspecified */ |
| #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */ |
| |
| static int prune_tags = -1; /* unspecified */ |
| #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */ |
| |
| static int append, dry_run, force, keep, update_head_ok; |
| static int write_fetch_head = 1; |
| static int verbosity, deepen_relative, set_upstream, refetch; |
| static int progress = -1; |
| static int tags = TAGS_DEFAULT, update_shallow, deepen; |
| static int atomic_fetch; |
| static enum transport_family family; |
| static const char *depth; |
| static const char *deepen_since; |
| static const char *upload_pack; |
| static struct string_list deepen_not = STRING_LIST_INIT_NODUP; |
| static struct strbuf default_rla = STRBUF_INIT; |
| static struct transport *gtransport; |
| static struct transport *gsecondary; |
| static struct refspec refmap = REFSPEC_INIT_FETCH; |
| static struct list_objects_filter_options filter_options = LIST_OBJECTS_FILTER_INIT; |
| static struct string_list server_options = STRING_LIST_INIT_DUP; |
| static struct string_list negotiation_tip = STRING_LIST_INIT_NODUP; |
| |
| struct fetch_config { |
| enum display_format display_format; |
| int all; |
| int prune; |
| int prune_tags; |
| int show_forced_updates; |
| int recurse_submodules; |
| int parallel; |
| int submodule_fetch_jobs; |
| }; |
| |
| static int git_fetch_config(const char *k, const char *v, |
| const struct config_context *ctx, void *cb) |
| { |
| struct fetch_config *fetch_config = cb; |
| |
| if (!strcmp(k, "fetch.all")) { |
| fetch_config->all = git_config_bool(k, v); |
| return 0; |
| } |
| |
| if (!strcmp(k, "fetch.prune")) { |
| fetch_config->prune = git_config_bool(k, v); |
| return 0; |
| } |
| |
| if (!strcmp(k, "fetch.prunetags")) { |
| fetch_config->prune_tags = git_config_bool(k, v); |
| return 0; |
| } |
| |
| if (!strcmp(k, "fetch.showforcedupdates")) { |
| fetch_config->show_forced_updates = git_config_bool(k, v); |
| return 0; |
| } |
| |
| if (!strcmp(k, "submodule.recurse")) { |
| int r = git_config_bool(k, v) ? |
| RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF; |
| fetch_config->recurse_submodules = r; |
| return 0; |
| } |
| |
| if (!strcmp(k, "submodule.fetchjobs")) { |
| fetch_config->submodule_fetch_jobs = parse_submodule_fetchjobs(k, v, ctx->kvi); |
| return 0; |
| } else if (!strcmp(k, "fetch.recursesubmodules")) { |
| fetch_config->recurse_submodules = parse_fetch_recurse_submodules_arg(k, v); |
| return 0; |
| } |
| |
| if (!strcmp(k, "fetch.parallel")) { |
| fetch_config->parallel = git_config_int(k, v, ctx->kvi); |
| if (fetch_config->parallel < 0) |
| die(_("fetch.parallel cannot be negative")); |
| if (!fetch_config->parallel) |
| fetch_config->parallel = online_cpus(); |
| return 0; |
| } |
| |
| if (!strcmp(k, "fetch.output")) { |
| if (!v) |
| return config_error_nonbool(k); |
| else if (!strcasecmp(v, "full")) |
| fetch_config->display_format = DISPLAY_FORMAT_FULL; |
| else if (!strcasecmp(v, "compact")) |
| fetch_config->display_format = DISPLAY_FORMAT_COMPACT; |
| else |
| die(_("invalid value for '%s': '%s'"), |
| "fetch.output", v); |
| } |
| |
| return git_default_config(k, v, ctx, cb); |
| } |
| |
| static int parse_refmap_arg(const struct option *opt, const char *arg, int unset) |
| { |
| BUG_ON_OPT_NEG(unset); |
| |
| /* |
| * "git fetch --refmap='' origin foo" |
| * can be used to tell the command not to store anywhere |
| */ |
| refspec_append(opt->value, arg); |
| |
| return 0; |
| } |
| |
| static void unlock_pack(unsigned int flags) |
| { |
| if (gtransport) |
| transport_unlock_pack(gtransport, flags); |
| if (gsecondary) |
| transport_unlock_pack(gsecondary, flags); |
| } |
| |
| static void unlock_pack_atexit(void) |
| { |
| unlock_pack(0); |
| } |
| |
| static void unlock_pack_on_signal(int signo) |
| { |
| unlock_pack(TRANSPORT_UNLOCK_PACK_IN_SIGNAL_HANDLER); |
| sigchain_pop(signo); |
| raise(signo); |
| } |
| |
| static void add_merge_config(struct ref **head, |
| const struct ref *remote_refs, |
| struct branch *branch, |
| struct ref ***tail) |
| { |
| int i; |
| |
| for (i = 0; i < branch->merge_nr; i++) { |
| struct ref *rm, **old_tail = *tail; |
| struct refspec_item refspec; |
| |
| for (rm = *head; rm; rm = rm->next) { |
| if (branch_merge_matches(branch, i, rm->name)) { |
| rm->fetch_head_status = FETCH_HEAD_MERGE; |
| break; |
| } |
| } |
| if (rm) |
| continue; |
| |
| /* |
| * Not fetched to a remote-tracking branch? We need to fetch |
| * it anyway to allow this branch's "branch.$name.merge" |
| * to be honored by 'git pull', but we do not have to |
| * fail if branch.$name.merge is misconfigured to point |
| * at a nonexisting branch. If we were indeed called by |
| * 'git pull', it will notice the misconfiguration because |
| * there is no entry in the resulting FETCH_HEAD marked |
| * for merging. |
| */ |
| memset(&refspec, 0, sizeof(refspec)); |
| refspec.src = branch->merge[i]->src; |
| get_fetch_map(remote_refs, &refspec, tail, 1); |
| for (rm = *old_tail; rm; rm = rm->next) |
| rm->fetch_head_status = FETCH_HEAD_MERGE; |
| } |
| } |
| |
| static void create_fetch_oidset(struct ref **head, struct oidset *out) |
| { |
| struct ref *rm = *head; |
| while (rm) { |
| oidset_insert(out, &rm->old_oid); |
| rm = rm->next; |
| } |
| } |
| |
| struct refname_hash_entry { |
| struct hashmap_entry ent; |
| struct object_id oid; |
| int ignore; |
| char refname[FLEX_ARRAY]; |
| }; |
| |
| static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data UNUSED, |
| const struct hashmap_entry *eptr, |
| const struct hashmap_entry *entry_or_key, |
| const void *keydata) |
| { |
| const struct refname_hash_entry *e1, *e2; |
| |
| e1 = container_of(eptr, const struct refname_hash_entry, ent); |
| e2 = container_of(entry_or_key, const struct refname_hash_entry, ent); |
| return strcmp(e1->refname, keydata ? keydata : e2->refname); |
| } |
| |
| static struct refname_hash_entry *refname_hash_add(struct hashmap *map, |
| const char *refname, |
| const struct object_id *oid) |
| { |
| struct refname_hash_entry *ent; |
| size_t len = strlen(refname); |
| |
| FLEX_ALLOC_MEM(ent, refname, refname, len); |
| hashmap_entry_init(&ent->ent, strhash(refname)); |
| oidcpy(&ent->oid, oid); |
| hashmap_add(map, &ent->ent); |
| return ent; |
| } |
| |
| static int add_one_refname(const char *refname, |
| const struct object_id *oid, |
| int flag UNUSED, void *cbdata) |
| { |
| struct hashmap *refname_map = cbdata; |
| |
| (void) refname_hash_add(refname_map, refname, oid); |
| return 0; |
| } |
| |
| static void refname_hash_init(struct hashmap *map) |
| { |
| hashmap_init(map, refname_hash_entry_cmp, NULL, 0); |
| } |
| |
| static int refname_hash_exists(struct hashmap *map, const char *refname) |
| { |
| return !!hashmap_get_from_hash(map, strhash(refname), refname); |
| } |
| |
| static void clear_item(struct refname_hash_entry *item) |
| { |
| item->ignore = 1; |
| } |
| |
| |
| static void add_already_queued_tags(const char *refname, |
| const struct object_id *old_oid UNUSED, |
| const struct object_id *new_oid, |
| void *cb_data) |
| { |
| struct hashmap *queued_tags = cb_data; |
| if (starts_with(refname, "refs/tags/") && new_oid) |
| (void) refname_hash_add(queued_tags, refname, new_oid); |
| } |
| |
| static void find_non_local_tags(const struct ref *refs, |
| struct ref_transaction *transaction, |
| struct ref **head, |
| struct ref ***tail) |
| { |
| struct hashmap existing_refs; |
| struct hashmap remote_refs; |
| struct oidset fetch_oids = OIDSET_INIT; |
| struct string_list remote_refs_list = STRING_LIST_INIT_NODUP; |
| struct string_list_item *remote_ref_item; |
| const struct ref *ref; |
| struct refname_hash_entry *item = NULL; |
| const int quick_flags = OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT; |
| |
| refname_hash_init(&existing_refs); |
| refname_hash_init(&remote_refs); |
| create_fetch_oidset(head, &fetch_oids); |
| |
| refs_for_each_ref(get_main_ref_store(the_repository), add_one_refname, |
| &existing_refs); |
| |
| /* |
| * If we already have a transaction, then we need to filter out all |
| * tags which have already been queued up. |
| */ |
| if (transaction) |
| ref_transaction_for_each_queued_update(transaction, |
| add_already_queued_tags, |
| &existing_refs); |
| |
| for (ref = refs; ref; ref = ref->next) { |
| if (!starts_with(ref->name, "refs/tags/")) |
| continue; |
| |
| /* |
| * The peeled ref always follows the matching base |
| * ref, so if we see a peeled ref that we don't want |
| * to fetch then we can mark the ref entry in the list |
| * as one to ignore by setting util to NULL. |
| */ |
| if (ends_with(ref->name, "^{}")) { |
| if (item && |
| !repo_has_object_file_with_flags(the_repository, &ref->old_oid, quick_flags) && |
| !oidset_contains(&fetch_oids, &ref->old_oid) && |
| !repo_has_object_file_with_flags(the_repository, &item->oid, quick_flags) && |
| !oidset_contains(&fetch_oids, &item->oid)) |
| clear_item(item); |
| item = NULL; |
| continue; |
| } |
| |
| /* |
| * If item is non-NULL here, then we previously saw a |
| * ref not followed by a peeled reference, so we need |
| * to check if it is a lightweight tag that we want to |
| * fetch. |
| */ |
| if (item && |
| !repo_has_object_file_with_flags(the_repository, &item->oid, quick_flags) && |
| !oidset_contains(&fetch_oids, &item->oid)) |
| clear_item(item); |
| |
| item = NULL; |
| |
| /* skip duplicates and refs that we already have */ |
| if (refname_hash_exists(&remote_refs, ref->name) || |
| refname_hash_exists(&existing_refs, ref->name)) |
| continue; |
| |
| item = refname_hash_add(&remote_refs, ref->name, &ref->old_oid); |
| string_list_insert(&remote_refs_list, ref->name); |
| } |
| hashmap_clear_and_free(&existing_refs, struct refname_hash_entry, ent); |
| |
| /* |
| * We may have a final lightweight tag that needs to be |
| * checked to see if it needs fetching. |
| */ |
| if (item && |
| !repo_has_object_file_with_flags(the_repository, &item->oid, quick_flags) && |
| !oidset_contains(&fetch_oids, &item->oid)) |
| clear_item(item); |
| |
| /* |
| * For all the tags in the remote_refs_list, |
| * add them to the list of refs to be fetched |
| */ |
| for_each_string_list_item(remote_ref_item, &remote_refs_list) { |
| const char *refname = remote_ref_item->string; |
| struct ref *rm; |
| unsigned int hash = strhash(refname); |
| |
| item = hashmap_get_entry_from_hash(&remote_refs, hash, refname, |
| struct refname_hash_entry, ent); |
| if (!item) |
| BUG("unseen remote ref?"); |
| |
| /* Unless we have already decided to ignore this item... */ |
| if (item->ignore) |
| continue; |
| |
| rm = alloc_ref(item->refname); |
| rm->peer_ref = alloc_ref(item->refname); |
| oidcpy(&rm->old_oid, &item->oid); |
| **tail = rm; |
| *tail = &rm->next; |
| } |
| hashmap_clear_and_free(&remote_refs, struct refname_hash_entry, ent); |
| string_list_clear(&remote_refs_list, 0); |
| oidset_clear(&fetch_oids); |
| } |
| |
| static void filter_prefetch_refspec(struct refspec *rs) |
| { |
| int i; |
| |
| if (!prefetch) |
| return; |
| |
| for (i = 0; i < rs->nr; i++) { |
| struct strbuf new_dst = STRBUF_INIT; |
| char *old_dst; |
| const char *sub = NULL; |
| |
| if (rs->items[i].negative) |
| continue; |
| if (!rs->items[i].dst || |
| (rs->items[i].src && |
| starts_with(rs->items[i].src, |
| ref_namespace[NAMESPACE_TAGS].ref))) { |
| int j; |
| |
| free(rs->items[i].src); |
| free(rs->items[i].dst); |
| |
| for (j = i + 1; j < rs->nr; j++) { |
| rs->items[j - 1] = rs->items[j]; |
| rs->raw[j - 1] = rs->raw[j]; |
| } |
| rs->nr--; |
| i--; |
| continue; |
| } |
| |
| old_dst = rs->items[i].dst; |
| strbuf_addstr(&new_dst, ref_namespace[NAMESPACE_PREFETCH].ref); |
| |
| /* |
| * If old_dst starts with "refs/", then place |
| * sub after that prefix. Otherwise, start at |
| * the beginning of the string. |
| */ |
| if (!skip_prefix(old_dst, "refs/", &sub)) |
| sub = old_dst; |
| strbuf_addstr(&new_dst, sub); |
| |
| rs->items[i].dst = strbuf_detach(&new_dst, NULL); |
| rs->items[i].force = 1; |
| |
| free(old_dst); |
| } |
| } |
| |
| static struct ref *get_ref_map(struct remote *remote, |
| const struct ref *remote_refs, |
| struct refspec *rs, |
| int tags, int *autotags) |
| { |
| int i; |
| struct ref *rm; |
| struct ref *ref_map = NULL; |
| struct ref **tail = &ref_map; |
| |
| /* opportunistically-updated references: */ |
| struct ref *orefs = NULL, **oref_tail = &orefs; |
| |
| struct hashmap existing_refs; |
| int existing_refs_populated = 0; |
| |
| filter_prefetch_refspec(rs); |
| if (remote) |
| filter_prefetch_refspec(&remote->fetch); |
| |
| if (rs->nr) { |
| struct refspec *fetch_refspec; |
| |
| for (i = 0; i < rs->nr; i++) { |
| get_fetch_map(remote_refs, &rs->items[i], &tail, 0); |
| if (rs->items[i].dst && rs->items[i].dst[0]) |
| *autotags = 1; |
| } |
| /* Merge everything on the command line (but not --tags) */ |
| for (rm = ref_map; rm; rm = rm->next) |
| rm->fetch_head_status = FETCH_HEAD_MERGE; |
| |
| /* |
| * For any refs that we happen to be fetching via |
| * command-line arguments, the destination ref might |
| * have been missing or have been different than the |
| * remote-tracking ref that would be derived from the |
| * configured refspec. In these cases, we want to |
| * take the opportunity to update their configured |
| * remote-tracking reference. However, we do not want |
| * to mention these entries in FETCH_HEAD at all, as |
| * they would simply be duplicates of existing |
| * entries, so we set them FETCH_HEAD_IGNORE below. |
| * |
| * We compute these entries now, based only on the |
| * refspecs specified on the command line. But we add |
| * them to the list following the refspecs resulting |
| * from the tags option so that one of the latter, |
| * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed |
| * by ref_remove_duplicates() in favor of one of these |
| * opportunistic entries with FETCH_HEAD_IGNORE. |
| */ |
| if (refmap.nr) |
| fetch_refspec = &refmap; |
| else |
| fetch_refspec = &remote->fetch; |
| |
| for (i = 0; i < fetch_refspec->nr; i++) |
| get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1); |
| } else if (refmap.nr) { |
| die("--refmap option is only meaningful with command-line refspec(s)"); |
| } else { |
| /* Use the defaults */ |
| struct branch *branch = branch_get(NULL); |
| int has_merge = branch_has_merge_config(branch); |
| if (remote && |
| (remote->fetch.nr || |
| /* Note: has_merge implies non-NULL branch->remote_name */ |
| (has_merge && !strcmp(branch->remote_name, remote->name)))) { |
| for (i = 0; i < remote->fetch.nr; i++) { |
| get_fetch_map(remote_refs, &remote->fetch.items[i], &tail, 0); |
| if (remote->fetch.items[i].dst && |
| remote->fetch.items[i].dst[0]) |
| *autotags = 1; |
| if (!i && !has_merge && ref_map && |
| !remote->fetch.items[0].pattern) |
| ref_map->fetch_head_status = FETCH_HEAD_MERGE; |
| } |
| /* |
| * if the remote we're fetching from is the same |
| * as given in branch.<name>.remote, we add the |
| * ref given in branch.<name>.merge, too. |
| * |
| * Note: has_merge implies non-NULL branch->remote_name |
| */ |
| if (has_merge && |
| !strcmp(branch->remote_name, remote->name)) |
| add_merge_config(&ref_map, remote_refs, branch, &tail); |
| } else if (!prefetch) { |
| ref_map = get_remote_ref(remote_refs, "HEAD"); |
| if (!ref_map) |
| die(_("couldn't find remote ref HEAD")); |
| ref_map->fetch_head_status = FETCH_HEAD_MERGE; |
| tail = &ref_map->next; |
| } |
| } |
| |
| if (tags == TAGS_SET) { |
| struct refspec_item tag_refspec; |
| |
| /* also fetch all tags */ |
| refspec_item_init(&tag_refspec, TAG_REFSPEC, 0); |
| get_fetch_map(remote_refs, &tag_refspec, &tail, 0); |
| refspec_item_clear(&tag_refspec); |
| } else if (tags == TAGS_DEFAULT && *autotags) { |
| find_non_local_tags(remote_refs, NULL, &ref_map, &tail); |
| } |
| |
| /* Now append any refs to be updated opportunistically: */ |
| *tail = orefs; |
| for (rm = orefs; rm; rm = rm->next) { |
| rm->fetch_head_status = FETCH_HEAD_IGNORE; |
| tail = &rm->next; |
| } |
| |
| /* |
| * apply negative refspecs first, before we remove duplicates. This is |
| * necessary as negative refspecs might remove an otherwise conflicting |
| * duplicate. |
| */ |
| if (rs->nr) |
| ref_map = apply_negative_refspecs(ref_map, rs); |
| else |
| ref_map = apply_negative_refspecs(ref_map, &remote->fetch); |
| |
| ref_map = ref_remove_duplicates(ref_map); |
| |
| for (rm = ref_map; rm; rm = rm->next) { |
| if (rm->peer_ref) { |
| const char *refname = rm->peer_ref->name; |
| struct refname_hash_entry *peer_item; |
| unsigned int hash = strhash(refname); |
| |
| if (!existing_refs_populated) { |
| refname_hash_init(&existing_refs); |
| refs_for_each_ref(get_main_ref_store(the_repository), |
| add_one_refname, |
| &existing_refs); |
| existing_refs_populated = 1; |
| } |
| |
| peer_item = hashmap_get_entry_from_hash(&existing_refs, |
| hash, refname, |
| struct refname_hash_entry, ent); |
| if (peer_item) { |
| struct object_id *old_oid = &peer_item->oid; |
| oidcpy(&rm->peer_ref->old_oid, old_oid); |
| } |
| } |
| } |
| if (existing_refs_populated) |
| hashmap_clear_and_free(&existing_refs, struct refname_hash_entry, ent); |
| |
| return ref_map; |
| } |
| |
| #define STORE_REF_ERROR_OTHER 1 |
| #define STORE_REF_ERROR_DF_CONFLICT 2 |
| |
| static int s_update_ref(const char *action, |
| struct ref *ref, |
| struct ref_transaction *transaction, |
| int check_old) |
| { |
| char *msg; |
| char *rla = getenv("GIT_REFLOG_ACTION"); |
| struct ref_transaction *our_transaction = NULL; |
| struct strbuf err = STRBUF_INIT; |
| int ret; |
| |
| if (dry_run) |
| return 0; |
| if (!rla) |
| rla = default_rla.buf; |
| msg = xstrfmt("%s: %s", rla, action); |
| |
| /* |
| * If no transaction was passed to us, we manage the transaction |
| * ourselves. Otherwise, we trust the caller to handle the transaction |
| * lifecycle. |
| */ |
| if (!transaction) { |
| transaction = our_transaction = ref_store_transaction_begin(get_main_ref_store(the_repository), |
| &err); |
| if (!transaction) { |
| ret = STORE_REF_ERROR_OTHER; |
| goto out; |
| } |
| } |
| |
| ret = ref_transaction_update(transaction, ref->name, &ref->new_oid, |
| check_old ? &ref->old_oid : NULL, |
| NULL, NULL, 0, msg, &err); |
| if (ret) { |
| ret = STORE_REF_ERROR_OTHER; |
| goto out; |
| } |
| |
| if (our_transaction) { |
| switch (ref_transaction_commit(our_transaction, &err)) { |
| case 0: |
| break; |
| case TRANSACTION_NAME_CONFLICT: |
| ret = STORE_REF_ERROR_DF_CONFLICT; |
| goto out; |
| default: |
| ret = STORE_REF_ERROR_OTHER; |
| goto out; |
| } |
| } |
| |
| out: |
| ref_transaction_free(our_transaction); |
| if (ret) |
| error("%s", err.buf); |
| strbuf_release(&err); |
| free(msg); |
| return ret; |
| } |
| |
| static int refcol_width(const struct ref *ref_map, int compact_format) |
| { |
| const struct ref *ref; |
| int max, width = 10; |
| |
| max = term_columns(); |
| if (compact_format) |
| max = max * 2 / 3; |
| |
| for (ref = ref_map; ref; ref = ref->next) { |
| int rlen, llen = 0, len; |
| |
| if (ref->status == REF_STATUS_REJECT_SHALLOW || |
| !ref->peer_ref || |
| !strcmp(ref->name, "HEAD")) |
| continue; |
| |
| /* uptodate lines are only shown on high verbosity level */ |
| if (verbosity <= 0 && oideq(&ref->peer_ref->old_oid, &ref->old_oid)) |
| continue; |
| |
| rlen = utf8_strwidth(prettify_refname(ref->name)); |
| if (!compact_format) |
| llen = utf8_strwidth(prettify_refname(ref->peer_ref->name)); |
| |
| /* |
| * rough estimation to see if the output line is too long and |
| * should not be counted (we can't do precise calculation |
| * anyway because we don't know if the error explanation part |
| * will be printed in update_local_ref) |
| */ |
| len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen; |
| if (len >= max) |
| continue; |
| |
| if (width < rlen) |
| width = rlen; |
| } |
| |
| return width; |
| } |
| |
| static void display_state_init(struct display_state *display_state, struct ref *ref_map, |
| const char *raw_url, enum display_format format) |
| { |
| int i; |
| |
| memset(display_state, 0, sizeof(*display_state)); |
| strbuf_init(&display_state->buf, 0); |
| display_state->format = format; |
| |
| if (raw_url) |
| display_state->url = transport_anonymize_url(raw_url); |
| else |
| display_state->url = xstrdup("foreign"); |
| |
| display_state->url_len = strlen(display_state->url); |
| for (i = display_state->url_len - 1; display_state->url[i] == '/' && 0 <= i; i--) |
| ; |
| display_state->url_len = i + 1; |
| if (4 < i && !strncmp(".git", display_state->url + i - 3, 4)) |
| display_state->url_len = i - 3; |
| |
| if (verbosity < 0) |
| return; |
| |
| switch (display_state->format) { |
| case DISPLAY_FORMAT_FULL: |
| case DISPLAY_FORMAT_COMPACT: |
| display_state->refcol_width = refcol_width(ref_map, |
| display_state->format == DISPLAY_FORMAT_COMPACT); |
| break; |
| case DISPLAY_FORMAT_PORCELAIN: |
| /* We don't need to precompute anything here. */ |
| break; |
| default: |
| BUG("unexpected display format %d", display_state->format); |
| } |
| } |
| |
| static void display_state_release(struct display_state *display_state) |
| { |
| strbuf_release(&display_state->buf); |
| free(display_state->url); |
| } |
| |
| static void print_remote_to_local(struct display_state *display_state, |
| const char *remote, const char *local) |
| { |
| strbuf_addf(&display_state->buf, "%-*s -> %s", |
| display_state->refcol_width, remote, local); |
| } |
| |
| static int find_and_replace(struct strbuf *haystack, |
| const char *needle, |
| const char *placeholder) |
| { |
| const char *p = NULL; |
| int plen, nlen; |
| |
| nlen = strlen(needle); |
| if (ends_with(haystack->buf, needle)) |
| p = haystack->buf + haystack->len - nlen; |
| else |
| p = strstr(haystack->buf, needle); |
| if (!p) |
| return 0; |
| |
| if (p > haystack->buf && p[-1] != '/') |
| return 0; |
| |
| plen = strlen(p); |
| if (plen > nlen && p[nlen] != '/') |
| return 0; |
| |
| strbuf_splice(haystack, p - haystack->buf, nlen, |
| placeholder, strlen(placeholder)); |
| return 1; |
| } |
| |
| static void print_compact(struct display_state *display_state, |
| const char *remote, const char *local) |
| { |
| struct strbuf r = STRBUF_INIT; |
| struct strbuf l = STRBUF_INIT; |
| |
| if (!strcmp(remote, local)) { |
| strbuf_addf(&display_state->buf, "%-*s -> *", display_state->refcol_width, remote); |
| return; |
| } |
| |
| strbuf_addstr(&r, remote); |
| strbuf_addstr(&l, local); |
| |
| if (!find_and_replace(&r, local, "*")) |
| find_and_replace(&l, remote, "*"); |
| print_remote_to_local(display_state, r.buf, l.buf); |
| |
| strbuf_release(&r); |
| strbuf_release(&l); |
| } |
| |
| static void display_ref_update(struct display_state *display_state, char code, |
| const char *summary, const char *error, |
| const char *remote, const char *local, |
| const struct object_id *old_oid, |
| const struct object_id *new_oid, |
| int summary_width) |
| { |
| FILE *f = stderr; |
| |
| if (verbosity < 0) |
| return; |
| |
| strbuf_reset(&display_state->buf); |
| |
| switch (display_state->format) { |
| case DISPLAY_FORMAT_FULL: |
| case DISPLAY_FORMAT_COMPACT: { |
| int width; |
| |
| if (!display_state->shown_url) { |
| strbuf_addf(&display_state->buf, _("From %.*s\n"), |
| display_state->url_len, display_state->url); |
| display_state->shown_url = 1; |
| } |
| |
| width = (summary_width + strlen(summary) - gettext_width(summary)); |
| remote = prettify_refname(remote); |
| local = prettify_refname(local); |
| |
| strbuf_addf(&display_state->buf, " %c %-*s ", code, width, summary); |
| |
| if (display_state->format != DISPLAY_FORMAT_COMPACT) |
| print_remote_to_local(display_state, remote, local); |
| else |
| print_compact(display_state, remote, local); |
| |
| if (error) |
| strbuf_addf(&display_state->buf, " (%s)", error); |
| |
| break; |
| } |
| case DISPLAY_FORMAT_PORCELAIN: |
| strbuf_addf(&display_state->buf, "%c %s %s %s", code, |
| oid_to_hex(old_oid), oid_to_hex(new_oid), local); |
| f = stdout; |
| break; |
| default: |
| BUG("unexpected display format %d", display_state->format); |
| }; |
| strbuf_addch(&display_state->buf, '\n'); |
| |
| fputs(display_state->buf.buf, f); |
| } |
| |
| static int update_local_ref(struct ref *ref, |
| struct ref_transaction *transaction, |
| struct display_state *display_state, |
| const struct ref *remote_ref, |
| int summary_width, |
| const struct fetch_config *config) |
| { |
| struct commit *current = NULL, *updated; |
| int fast_forward = 0; |
| |
| if (!repo_has_object_file(the_repository, &ref->new_oid)) |
| die(_("object %s not found"), oid_to_hex(&ref->new_oid)); |
| |
| if (oideq(&ref->old_oid, &ref->new_oid)) { |
| if (verbosity > 0) |
| display_ref_update(display_state, '=', _("[up to date]"), NULL, |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return 0; |
| } |
| |
| if (!update_head_ok && |
| !is_null_oid(&ref->old_oid) && |
| branch_checked_out(ref->name)) { |
| /* |
| * If this is the head, and it's not okay to update |
| * the head, and the old value of the head isn't empty... |
| */ |
| display_ref_update(display_state, '!', _("[rejected]"), |
| _("can't fetch into checked-out branch"), |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return 1; |
| } |
| |
| if (!is_null_oid(&ref->old_oid) && |
| starts_with(ref->name, "refs/tags/")) { |
| if (force || ref->force) { |
| int r; |
| r = s_update_ref("updating tag", ref, transaction, 0); |
| display_ref_update(display_state, r ? '!' : 't', _("[tag update]"), |
| r ? _("unable to update local ref") : NULL, |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return r; |
| } else { |
| display_ref_update(display_state, '!', _("[rejected]"), |
| _("would clobber existing tag"), |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return 1; |
| } |
| } |
| |
| current = lookup_commit_reference_gently(the_repository, |
| &ref->old_oid, 1); |
| updated = lookup_commit_reference_gently(the_repository, |
| &ref->new_oid, 1); |
| if (!current || !updated) { |
| const char *msg; |
| const char *what; |
| int r; |
| /* |
| * Nicely describe the new ref we're fetching. |
| * Base this on the remote's ref name, as it's |
| * more likely to follow a standard layout. |
| */ |
| if (starts_with(remote_ref->name, "refs/tags/")) { |
| msg = "storing tag"; |
| what = _("[new tag]"); |
| } else if (starts_with(remote_ref->name, "refs/heads/")) { |
| msg = "storing head"; |
| what = _("[new branch]"); |
| } else { |
| msg = "storing ref"; |
| what = _("[new ref]"); |
| } |
| |
| r = s_update_ref(msg, ref, transaction, 0); |
| display_ref_update(display_state, r ? '!' : '*', what, |
| r ? _("unable to update local ref") : NULL, |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return r; |
| } |
| |
| if (config->show_forced_updates) { |
| uint64_t t_before = getnanotime(); |
| fast_forward = repo_in_merge_bases(the_repository, current, |
| updated); |
| if (fast_forward < 0) |
| exit(128); |
| forced_updates_ms += (getnanotime() - t_before) / 1000000; |
| } else { |
| fast_forward = 1; |
| } |
| |
| if (fast_forward) { |
| struct strbuf quickref = STRBUF_INIT; |
| int r; |
| |
| strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV); |
| strbuf_addstr(&quickref, ".."); |
| strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV); |
| r = s_update_ref("fast-forward", ref, transaction, 1); |
| display_ref_update(display_state, r ? '!' : ' ', quickref.buf, |
| r ? _("unable to update local ref") : NULL, |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| strbuf_release(&quickref); |
| return r; |
| } else if (force || ref->force) { |
| struct strbuf quickref = STRBUF_INIT; |
| int r; |
| strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV); |
| strbuf_addstr(&quickref, "..."); |
| strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV); |
| r = s_update_ref("forced-update", ref, transaction, 1); |
| display_ref_update(display_state, r ? '!' : '+', quickref.buf, |
| r ? _("unable to update local ref") : _("forced update"), |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| strbuf_release(&quickref); |
| return r; |
| } else { |
| display_ref_update(display_state, '!', _("[rejected]"), _("non-fast-forward"), |
| remote_ref->name, ref->name, |
| &ref->old_oid, &ref->new_oid, summary_width); |
| return 1; |
| } |
| } |
| |
| static const struct object_id *iterate_ref_map(void *cb_data) |
| { |
| struct ref **rm = cb_data; |
| struct ref *ref = *rm; |
| |
| while (ref && ref->status == REF_STATUS_REJECT_SHALLOW) |
| ref = ref->next; |
| if (!ref) |
| return NULL; |
| *rm = ref->next; |
| return &ref->old_oid; |
| } |
| |
| struct fetch_head { |
| FILE *fp; |
| struct strbuf buf; |
| }; |
| |
| static int open_fetch_head(struct fetch_head *fetch_head) |
| { |
| const char *filename = git_path_fetch_head(the_repository); |
| |
| if (write_fetch_head) { |
| fetch_head->fp = fopen(filename, "a"); |
| if (!fetch_head->fp) |
| return error_errno(_("cannot open '%s'"), filename); |
| strbuf_init(&fetch_head->buf, 0); |
| } else { |
| fetch_head->fp = NULL; |
| } |
| |
| return 0; |
| } |
| |
| static void append_fetch_head(struct fetch_head *fetch_head, |
| const struct object_id *old_oid, |
| enum fetch_head_status fetch_head_status, |
| const char *note, |
| const char *url, size_t url_len) |
| { |
| char old_oid_hex[GIT_MAX_HEXSZ + 1]; |
| const char *merge_status_marker; |
| size_t i; |
| |
| if (!fetch_head->fp) |
| return; |
| |
| switch (fetch_head_status) { |
| case FETCH_HEAD_NOT_FOR_MERGE: |
| merge_status_marker = "not-for-merge"; |
| break; |
| case FETCH_HEAD_MERGE: |
| merge_status_marker = ""; |
| break; |
| default: |
| /* do not write anything to FETCH_HEAD */ |
| return; |
| } |
| |
| strbuf_addf(&fetch_head->buf, "%s\t%s\t%s", |
| oid_to_hex_r(old_oid_hex, old_oid), merge_status_marker, note); |
| for (i = 0; i < url_len; ++i) |
| if ('\n' == url[i]) |
| strbuf_addstr(&fetch_head->buf, "\\n"); |
| else |
| strbuf_addch(&fetch_head->buf, url[i]); |
| strbuf_addch(&fetch_head->buf, '\n'); |
| |
| /* |
| * When using an atomic fetch, we do not want to update FETCH_HEAD if |
| * any of the reference updates fails. We thus have to write all |
| * updates to a buffer first and only commit it as soon as all |
| * references have been successfully updated. |
| */ |
| if (!atomic_fetch) { |
| strbuf_write(&fetch_head->buf, fetch_head->fp); |
| strbuf_reset(&fetch_head->buf); |
| } |
| } |
| |
| static void commit_fetch_head(struct fetch_head *fetch_head) |
| { |
| if (!fetch_head->fp || !atomic_fetch) |
| return; |
| strbuf_write(&fetch_head->buf, fetch_head->fp); |
| } |
| |
| static void close_fetch_head(struct fetch_head *fetch_head) |
| { |
| if (!fetch_head->fp) |
| return; |
| |
| fclose(fetch_head->fp); |
| strbuf_release(&fetch_head->buf); |
| } |
| |
| static const char warn_show_forced_updates[] = |
| N_("fetch normally indicates which branches had a forced update,\n" |
| "but that check has been disabled; to re-enable, use '--show-forced-updates'\n" |
| "flag or run 'git config fetch.showForcedUpdates true'"); |
| static const char warn_time_show_forced_updates[] = |
| N_("it took %.2f seconds to check forced updates; you can use\n" |
| "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n" |
| "to avoid this check\n"); |
| |
| static int store_updated_refs(struct display_state *display_state, |
| const char *remote_name, |
| int connectivity_checked, |
| struct ref_transaction *transaction, struct ref *ref_map, |
| struct fetch_head *fetch_head, |
| const struct fetch_config *config) |
| { |
| int rc = 0; |
| struct strbuf note = STRBUF_INIT; |
| const char *what, *kind; |
| struct ref *rm; |
| int want_status; |
| int summary_width = 0; |
| |
| if (verbosity >= 0) |
| summary_width = transport_summary_width(ref_map); |
| |
| if (!connectivity_checked) { |
| struct check_connected_options opt = CHECK_CONNECTED_INIT; |
| |
| opt.exclude_hidden_refs_section = "fetch"; |
| rm = ref_map; |
| if (check_connected(iterate_ref_map, &rm, &opt)) { |
| rc = error(_("%s did not send all necessary objects\n"), |
| display_state->url); |
| goto abort; |
| } |
| } |
| |
| /* |
| * We do a pass for each fetch_head_status type in their enum order, so |
| * merged entries are written before not-for-merge. That lets readers |
| * use FETCH_HEAD as a refname to refer to the ref to be merged. |
| */ |
| for (want_status = FETCH_HEAD_MERGE; |
| want_status <= FETCH_HEAD_IGNORE; |
| want_status++) { |
| for (rm = ref_map; rm; rm = rm->next) { |
| struct ref *ref = NULL; |
| |
| if (rm->status == REF_STATUS_REJECT_SHALLOW) { |
| if (want_status == FETCH_HEAD_MERGE) |
| warning(_("rejected %s because shallow roots are not allowed to be updated"), |
| rm->peer_ref ? rm->peer_ref->name : rm->name); |
| continue; |
| } |
| |
| /* |
| * When writing FETCH_HEAD we need to determine whether |
| * we already have the commit or not. If not, then the |
| * reference is not for merge and needs to be written |
| * to the reflog after other commits which we already |
| * have. We're not interested in this property though |
| * in case FETCH_HEAD is not to be updated, so we can |
| * skip the classification in that case. |
| */ |
| if (fetch_head->fp) { |
| struct commit *commit = NULL; |
| |
| /* |
| * References in "refs/tags/" are often going to point |
| * to annotated tags, which are not part of the |
| * commit-graph. We thus only try to look up refs in |
| * the graph which are not in that namespace to not |
| * regress performance in repositories with many |
| * annotated tags. |
| */ |
| if (!starts_with(rm->name, "refs/tags/")) |
| commit = lookup_commit_in_graph(the_repository, &rm->old_oid); |
| if (!commit) { |
| commit = lookup_commit_reference_gently(the_repository, |
| &rm->old_oid, |
| 1); |
| if (!commit) |
| rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE; |
| } |
| } |
| |
| if (rm->fetch_head_status != want_status) |
| continue; |
| |
| if (rm->peer_ref) { |
| ref = alloc_ref(rm->peer_ref->name); |
| oidcpy(&ref->old_oid, &rm->peer_ref->old_oid); |
| oidcpy(&ref->new_oid, &rm->old_oid); |
| ref->force = rm->peer_ref->force; |
| } |
| |
| if (config->recurse_submodules != RECURSE_SUBMODULES_OFF && |
| (!rm->peer_ref || !oideq(&ref->old_oid, &ref->new_oid))) { |
| check_for_new_submodule_commits(&rm->old_oid); |
| } |
| |
| if (!strcmp(rm->name, "HEAD")) { |
| kind = ""; |
| what = ""; |
| } else if (skip_prefix(rm->name, "refs/heads/", &what)) { |
| kind = "branch"; |
| } else if (skip_prefix(rm->name, "refs/tags/", &what)) { |
| kind = "tag"; |
| } else if (skip_prefix(rm->name, "refs/remotes/", &what)) { |
| kind = "remote-tracking branch"; |
| } else { |
| kind = ""; |
| what = rm->name; |
| } |
| |
| strbuf_reset(¬e); |
| if (*what) { |
| if (*kind) |
| strbuf_addf(¬e, "%s ", kind); |
| strbuf_addf(¬e, "'%s' of ", what); |
| } |
| |
| append_fetch_head(fetch_head, &rm->old_oid, |
| rm->fetch_head_status, |
| note.buf, display_state->url, |
| display_state->url_len); |
| |
| if (ref) { |
| rc |= update_local_ref(ref, transaction, display_state, |
| rm, summary_width, config); |
| free(ref); |
| } else if (write_fetch_head || dry_run) { |
| /* |
| * Display fetches written to FETCH_HEAD (or |
| * would be written to FETCH_HEAD, if --dry-run |
| * is set). |
| */ |
| display_ref_update(display_state, '*', |
| *kind ? kind : "branch", NULL, |
| rm->name, |
| "FETCH_HEAD", |
| &rm->new_oid, &rm->old_oid, |
| summary_width); |
| } |
| } |
| } |
| |
| if (rc & STORE_REF_ERROR_DF_CONFLICT) |
| error(_("some local refs could not be updated; try running\n" |
| " 'git remote prune %s' to remove any old, conflicting " |
| "branches"), remote_name); |
| |
| if (advice_enabled(ADVICE_FETCH_SHOW_FORCED_UPDATES)) { |
| if (!config->show_forced_updates) { |
| warning(_(warn_show_forced_updates)); |
| } else if (forced_updates_ms > FORCED_UPDATES_DELAY_WARNING_IN_MS) { |
| warning(_(warn_time_show_forced_updates), |
| forced_updates_ms / 1000.0); |
| } |
| } |
| |
| abort: |
| strbuf_release(¬e); |
| return rc; |
| } |
| |
| /* |
| * We would want to bypass the object transfer altogether if |
| * everything we are going to fetch already exists and is connected |
| * locally. |
| */ |
| static int check_exist_and_connected(struct ref *ref_map) |
| { |
| struct ref *rm = ref_map; |
| struct check_connected_options opt = CHECK_CONNECTED_INIT; |
| struct ref *r; |
| |
| /* |
| * If we are deepening a shallow clone we already have these |
| * objects reachable. Running rev-list here will return with |
| * a good (0) exit status and we'll bypass the fetch that we |
| * really need to perform. Claiming failure now will ensure |
| * we perform the network exchange to deepen our history. |
| */ |
| if (deepen) |
| return -1; |
| |
| /* |
| * Similarly, if we need to refetch, we always want to perform a full |
| * fetch ignoring existing objects. |
| */ |
| if (refetch) |
| return -1; |
| |
| |
| /* |
| * check_connected() allows objects to merely be promised, but |
| * we need all direct targets to exist. |
| */ |
| for (r = rm; r; r = r->next) { |
| if (!repo_has_object_file_with_flags(the_repository, &r->old_oid, |
| OBJECT_INFO_SKIP_FETCH_OBJECT)) |
| return -1; |
| } |
| |
| opt.quiet = 1; |
| opt.exclude_hidden_refs_section = "fetch"; |
| return check_connected(iterate_ref_map, &rm, &opt); |
| } |
| |
| static int fetch_and_consume_refs(struct display_state *display_state, |
| struct transport *transport, |
| struct ref_transaction *transaction, |
| struct ref *ref_map, |
| struct fetch_head *fetch_head, |
| const struct fetch_config *config) |
| { |
| int connectivity_checked = 1; |
| int ret; |
| |
| /* |
| * We don't need to perform a fetch in case we can already satisfy all |
| * refs. |
| */ |
| ret = check_exist_and_connected(ref_map); |
| if (ret) { |
| trace2_region_enter("fetch", "fetch_refs", the_repository); |
| ret = transport_fetch_refs(transport, ref_map); |
| trace2_region_leave("fetch", "fetch_refs", the_repository); |
| if (ret) |
| goto out; |
| connectivity_checked = transport->smart_options ? |
| transport->smart_options->connectivity_checked : 0; |
| } |
| |
| trace2_region_enter("fetch", "consume_refs", the_repository); |
| ret = store_updated_refs(display_state, transport->remote->name, |
| connectivity_checked, transaction, ref_map, |
| fetch_head, config); |
| trace2_region_leave("fetch", "consume_refs", the_repository); |
| |
| out: |
| transport_unlock_pack(transport, 0); |
| return ret; |
| } |
| |
| static int prune_refs(struct display_state *display_state, |
| struct refspec *rs, |
| struct ref_transaction *transaction, |
| struct ref *ref_map) |
| { |
| int result = 0; |
| struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map); |
| struct strbuf err = STRBUF_INIT; |
| const char *dangling_msg = dry_run |
| ? _(" (%s will become dangling)") |
| : _(" (%s has become dangling)"); |
| |
| if (!dry_run) { |
| if (transaction) { |
| for (ref = stale_refs; ref; ref = ref->next) { |
| result = ref_transaction_delete(transaction, ref->name, NULL, 0, |
| "fetch: prune", &err); |
| if (result) |
| goto cleanup; |
| } |
| } else { |
| struct string_list refnames = STRING_LIST_INIT_NODUP; |
| |
| for (ref = stale_refs; ref; ref = ref->next) |
| string_list_append(&refnames, ref->name); |
| |
| result = refs_delete_refs(get_main_ref_store(the_repository), |
| "fetch: prune", &refnames, |
| 0); |
| string_list_clear(&refnames, 0); |
| } |
| } |
| |
| if (verbosity >= 0) { |
| int summary_width = transport_summary_width(stale_refs); |
| |
| for (ref = stale_refs; ref; ref = ref->next) { |
| display_ref_update(display_state, '-', _("[deleted]"), NULL, |
| _("(none)"), ref->name, |
| &ref->new_oid, &ref->old_oid, |
| summary_width); |
| refs_warn_dangling_symref(get_main_ref_store(the_repository), |
| stderr, dangling_msg, ref->name); |
| } |
| } |
| |
| cleanup: |
| strbuf_release(&err); |
| free_refs(stale_refs); |
| return result; |
| } |
| |
| static void check_not_current_branch(struct ref *ref_map) |
| { |
| const char *path; |
| for (; ref_map; ref_map = ref_map->next) |
| if (ref_map->peer_ref && |
| starts_with(ref_map->peer_ref->name, "refs/heads/") && |
| (path = branch_checked_out(ref_map->peer_ref->name))) |
| die(_("refusing to fetch into branch '%s' " |
| "checked out at '%s'"), |
| ref_map->peer_ref->name, path); |
| } |
| |
| static int truncate_fetch_head(void) |
| { |
| const char *filename = git_path_fetch_head(the_repository); |
| FILE *fp = fopen_for_writing(filename); |
| |
| if (!fp) |
| return error_errno(_("cannot open '%s'"), filename); |
| fclose(fp); |
| return 0; |
| } |
| |
| static void set_option(struct transport *transport, const char *name, const char *value) |
| { |
| int r = transport_set_option(transport, name, value); |
| if (r < 0) |
| die(_("option \"%s\" value \"%s\" is not valid for %s"), |
| name, value, transport->url); |
| if (r > 0) |
| warning(_("option \"%s\" is ignored for %s\n"), |
| name, transport->url); |
| } |
| |
| |
| static int add_oid(const char *refname UNUSED, |
| const struct object_id *oid, |
| int flags UNUSED, void *cb_data) |
| { |
| struct oid_array *oids = cb_data; |
| |
| oid_array_append(oids, oid); |
| return 0; |
| } |
| |
| static void add_negotiation_tips(struct git_transport_options *smart_options) |
| { |
| struct oid_array *oids = xcalloc(1, sizeof(*oids)); |
| int i; |
| |
| for (i = 0; i < negotiation_tip.nr; i++) { |
| const char *s = negotiation_tip.items[i].string; |
| int old_nr; |
| if (!has_glob_specials(s)) { |
| struct object_id oid; |
| if (repo_get_oid(the_repository, s, &oid)) |
| die(_("%s is not a valid object"), s); |
| if (!has_object(the_repository, &oid, 0)) |
| die(_("the object %s does not exist"), s); |
| oid_array_append(oids, &oid); |
| continue; |
| } |
| old_nr = oids->nr; |
| refs_for_each_glob_ref(get_main_ref_store(the_repository), |
| add_oid, s, oids); |
| if (old_nr == oids->nr) |
| warning("ignoring --negotiation-tip=%s because it does not match any refs", |
| s); |
| } |
| smart_options->negotiation_tips = oids; |
| } |
| |
| static struct transport *prepare_transport(struct remote *remote, int deepen) |
| { |
| struct transport *transport; |
| |
| transport = transport_get(remote, NULL); |
| transport_set_verbosity(transport, verbosity, progress); |
| transport->family = family; |
| if (upload_pack) |
| set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack); |
| if (keep) |
| set_option(transport, TRANS_OPT_KEEP, "yes"); |
| if (depth) |
| set_option(transport, TRANS_OPT_DEPTH, depth); |
| if (deepen && deepen_since) |
| set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since); |
| if (deepen && deepen_not.nr) |
| set_option(transport, TRANS_OPT_DEEPEN_NOT, |
| (const char *)&deepen_not); |
| if (deepen_relative) |
| set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes"); |
| if (update_shallow) |
| set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes"); |
| if (refetch) |
| set_option(transport, TRANS_OPT_REFETCH, "yes"); |
| if (filter_options.choice) { |
| const char *spec = |
| expand_list_objects_filter_spec(&filter_options); |
| set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, spec); |
| set_option(transport, TRANS_OPT_FROM_PROMISOR, "1"); |
| } |
| if (negotiation_tip.nr) { |
| if (transport->smart_options) |
| add_negotiation_tips(transport->smart_options); |
| else |
| warning("ignoring --negotiation-tip because the protocol does not support it"); |
| } |
| return transport; |
| } |
| |
| static int backfill_tags(struct display_state *display_state, |
| struct transport *transport, |
| struct ref_transaction *transaction, |
| struct ref *ref_map, |
| struct fetch_head *fetch_head, |
| const struct fetch_config *config) |
| { |
| int retcode, cannot_reuse; |
| |
| /* |
| * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it |
| * when remote helper is used (setting it to an empty string |
| * is not unsetting). We could extend the remote helper |
| * protocol for that, but for now, just force a new connection |
| * without deepen-since. Similar story for deepen-not. |
| */ |
| cannot_reuse = transport->cannot_reuse || |
| deepen_since || deepen_not.nr; |
| if (cannot_reuse) { |
| gsecondary = prepare_transport(transport->remote, 0); |
| transport = gsecondary; |
| } |
| |
| transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); |
| transport_set_option(transport, TRANS_OPT_DEPTH, "0"); |
| transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL); |
| retcode = fetch_and_consume_refs(display_state, transport, transaction, ref_map, |
| fetch_head, config); |
| |
| if (gsecondary) { |
| transport_disconnect(gsecondary); |
| gsecondary = NULL; |
| } |
| |
| return retcode; |
| } |
| |
| static int do_fetch(struct transport *transport, |
| struct refspec *rs, |
| const struct fetch_config *config) |
| { |
| struct ref_transaction *transaction = NULL; |
| struct ref *ref_map = NULL; |
| struct display_state display_state = { 0 }; |
| int autotags = (transport->remote->fetch_tags == 1); |
| int retcode = 0; |
| const struct ref *remote_refs; |
| struct transport_ls_refs_options transport_ls_refs_options = |
| TRANSPORT_LS_REFS_OPTIONS_INIT; |
| int must_list_refs = 1; |
| struct fetch_head fetch_head = { 0 }; |
| struct strbuf err = STRBUF_INIT; |
| |
| if (tags == TAGS_DEFAULT) { |
| if (transport->remote->fetch_tags == 2) |
| tags = TAGS_SET; |
| if (transport->remote->fetch_tags == -1) |
| tags = TAGS_UNSET; |
| } |
| |
| /* if not appending, truncate FETCH_HEAD */ |
| if (!append && write_fetch_head) { |
| retcode = truncate_fetch_head(); |
| if (retcode) |
| goto cleanup; |
| } |
| |
| if (rs->nr) { |
| int i; |
| |
| refspec_ref_prefixes(rs, &transport_ls_refs_options.ref_prefixes); |
| |
| /* |
| * We can avoid listing refs if all of them are exact |
| * OIDs |
| */ |
| must_list_refs = 0; |
| for (i = 0; i < rs->nr; i++) { |
| if (!rs->items[i].exact_sha1) { |
| must_list_refs = 1; |
| break; |
| } |
| } |
| } else { |
| struct branch *branch = branch_get(NULL); |
| |
| if (transport->remote->fetch.nr) |
| refspec_ref_prefixes(&transport->remote->fetch, |
| &transport_ls_refs_options.ref_prefixes); |
| if (branch_has_merge_config(branch) && |
| !strcmp(branch->remote_name, transport->remote->name)) { |
| int i; |
| for (i = 0; i < branch->merge_nr; i++) { |
| strvec_push(&transport_ls_refs_options.ref_prefixes, |
| branch->merge[i]->src); |
| } |
| } |
| } |
| |
| if (tags == TAGS_SET || tags == TAGS_DEFAULT) { |
| must_list_refs = 1; |
| if (transport_ls_refs_options.ref_prefixes.nr) |
| strvec_push(&transport_ls_refs_options.ref_prefixes, |
| "refs/tags/"); |
| } |
| |
| if (must_list_refs) { |
| trace2_region_enter("fetch", "remote_refs", the_repository); |
| remote_refs = transport_get_remote_refs(transport, |
| &transport_ls_refs_options); |
| trace2_region_leave("fetch", "remote_refs", the_repository); |
| } else |
| remote_refs = NULL; |
| |
| transport_ls_refs_options_release(&transport_ls_refs_options); |
| |
| ref_map = get_ref_map(transport->remote, remote_refs, rs, |
| tags, &autotags); |
| if (!update_head_ok) |
| check_not_current_branch(ref_map); |
| |
| retcode = open_fetch_head(&fetch_head); |
| if (retcode) |
| goto cleanup; |
| |
| display_state_init(&display_state, ref_map, transport->url, |
| config->display_format); |
| |
| if (atomic_fetch) { |
| transaction = ref_store_transaction_begin(get_main_ref_store(the_repository), |
| &err); |
| if (!transaction) { |
| retcode = -1; |
| goto cleanup; |
| } |
| } |
| |
| if (tags == TAGS_DEFAULT && autotags) |
| transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); |
| if (prune) { |
| /* |
| * We only prune based on refspecs specified |
| * explicitly (via command line or configuration); we |
| * don't care whether --tags was specified. |
| */ |
| if (rs->nr) { |
| retcode = prune_refs(&display_state, rs, transaction, ref_map); |
| } else { |
| retcode = prune_refs(&display_state, &transport->remote->fetch, |
| transaction, ref_map); |
| } |
| if (retcode != 0) |
| retcode = 1; |
| } |
| |
| if (fetch_and_consume_refs(&display_state, transport, transaction, ref_map, |
| &fetch_head, config)) { |
| retcode = 1; |
| goto cleanup; |
| } |
| |
| /* |
| * If neither --no-tags nor --tags was specified, do automated tag |
| * following. |
| */ |
| if (tags == TAGS_DEFAULT && autotags) { |
| struct ref *tags_ref_map = NULL, **tail = &tags_ref_map; |
| |
| find_non_local_tags(remote_refs, transaction, &tags_ref_map, &tail); |
| if (tags_ref_map) { |
| /* |
| * If backfilling of tags fails then we want to tell |
| * the user so, but we have to continue regardless to |
| * populate upstream information of the references we |
| * have already fetched above. The exception though is |
| * when `--atomic` is passed: in that case we'll abort |
| * the transaction and don't commit anything. |
| */ |
| if (backfill_tags(&display_state, transport, transaction, tags_ref_map, |
| &fetch_head, config)) |
| retcode = 1; |
| } |
| |
| free_refs(tags_ref_map); |
| } |
| |
| if (transaction) { |
| if (retcode) |
| goto cleanup; |
| |
| retcode = ref_transaction_commit(transaction, &err); |
| if (retcode) { |
| ref_transaction_free(transaction); |
| transaction = NULL; |
| goto cleanup; |
| } |
| } |
| |
| commit_fetch_head(&fetch_head); |
| |
| if (set_upstream) { |
| struct branch *branch = branch_get("HEAD"); |
| struct ref *rm; |
| struct ref *source_ref = NULL; |
| |
| /* |
| * We're setting the upstream configuration for the |
| * current branch. The relevant upstream is the |
| * fetched branch that is meant to be merged with the |
| * current one, i.e. the one fetched to FETCH_HEAD. |
| * |
| * When there are several such branches, consider the |
| * request ambiguous and err on the safe side by doing |
| * nothing and just emit a warning. |
| */ |
| for (rm = ref_map; rm; rm = rm->next) { |
| if (!rm->peer_ref) { |
| if (source_ref) { |
| warning(_("multiple branches detected, incompatible with --set-upstream")); |
| goto cleanup; |
| } else { |
| source_ref = rm; |
| } |
| } |
| } |
| if (source_ref) { |
| if (!branch) { |
| const char *shortname = source_ref->name; |
| skip_prefix(shortname, "refs/heads/", &shortname); |
| |
| warning(_("could not set upstream of HEAD to '%s' from '%s' when " |
| "it does not point to any branch."), |
| shortname, transport->remote->name); |
| goto cleanup; |
| } |
| |
| if (!strcmp(source_ref->name, "HEAD") || |
| starts_with(source_ref->name, "refs/heads/")) |
| install_branch_config(0, |
| branch->name, |
| transport->remote->name, |
| source_ref->name); |
| else if (starts_with(source_ref->name, "refs/remotes/")) |
| warning(_("not setting upstream for a remote remote-tracking branch")); |
| else if (starts_with(source_ref->name, "refs/tags/")) |
| warning(_("not setting upstream for a remote tag")); |
| else |
| warning(_("unknown branch type")); |
| } else { |
| warning(_("no source branch found;\n" |
| "you need to specify exactly one branch with the --set-upstream option")); |
| } |
| } |
| |
| cleanup: |
| if (retcode) { |
| if (err.len) { |
| error("%s", err.buf); |
| strbuf_reset(&err); |
| } |
| if (transaction && ref_transaction_abort(transaction, &err) && |
| err.len) |
| error("%s", err.buf); |
| } |
| |
| display_state_release(&display_state); |
| close_fetch_head(&fetch_head); |
| strbuf_release(&err); |
| free_refs(ref_map); |
| return retcode; |
| } |
| |
| static int get_one_remote_for_fetch(struct remote *remote, void *priv) |
| { |
| struct string_list *list = priv; |
| if (!remote->skip_default_update) |
| string_list_append(list, remote->name); |
| return 0; |
| } |
| |
| struct remote_group_data { |
| const char *name; |
| struct string_list *list; |
| }; |
| |
| static int get_remote_group(const char *key, const char *value, |
| const struct config_context *ctx UNUSED, |
| void *priv) |
| { |
| struct remote_group_data *g = priv; |
| |
| if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) { |
| /* split list by white space */ |
| while (*value) { |
| size_t wordlen = strcspn(value, " \t\n"); |
| |
| if (wordlen >= 1) |
| string_list_append_nodup(g->list, |
| xstrndup(value, wordlen)); |
| value += wordlen + (value[wordlen] != '\0'); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int add_remote_or_group(const char *name, struct string_list *list) |
| { |
| int prev_nr = list->nr; |
| struct remote_group_data g; |
| g.name = name; g.list = list; |
| |
| git_config(get_remote_group, &g); |
| if (list->nr == prev_nr) { |
| struct remote *remote = remote_get(name); |
| if (!remote_is_configured(remote, 0)) |
| return 0; |
| string_list_append(list, remote->name); |
| } |
| return 1; |
| } |
| |
| static void add_options_to_argv(struct strvec *argv, |
| const struct fetch_config *config) |
| { |
| if (dry_run) |
| strvec_push(argv, "--dry-run"); |
| if (prune != -1) |
| strvec_push(argv, prune ? "--prune" : "--no-prune"); |
| if (prune_tags != -1) |
| strvec_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags"); |
| if (update_head_ok) |
| strvec_push(argv, "--update-head-ok"); |
| if (force) |
| strvec_push(argv, "--force"); |
| if (keep) |
| strvec_push(argv, "--keep"); |
| if (config->recurse_submodules == RECURSE_SUBMODULES_ON) |
| strvec_push(argv, "--recurse-submodules"); |
| else if (config->recurse_submodules == RECURSE_SUBMODULES_OFF) |
| strvec_push(argv, "--no-recurse-submodules"); |
| else if (config->recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) |
| strvec_push(argv, "--recurse-submodules=on-demand"); |
| if (tags == TAGS_SET) |
| strvec_push(argv, "--tags"); |
| else if (tags == TAGS_UNSET) |
| strvec_push(argv, "--no-tags"); |
| if (verbosity >= 2) |
| strvec_push(argv, "-v"); |
| if (verbosity >= 1) |
| strvec_push(argv, "-v"); |
| else if (verbosity < 0) |
| strvec_push(argv, "-q"); |
| if (family == TRANSPORT_FAMILY_IPV4) |
| strvec_push(argv, "--ipv4"); |
| else if (family == TRANSPORT_FAMILY_IPV6) |
| strvec_push(argv, "--ipv6"); |
| if (!write_fetch_head) |
| strvec_push(argv, "--no-write-fetch-head"); |
| if (config->display_format == DISPLAY_FORMAT_PORCELAIN) |
| strvec_pushf(argv, "--porcelain"); |
| } |
| |
| /* Fetch multiple remotes in parallel */ |
| |
| struct parallel_fetch_state { |
| const char **argv; |
| struct string_list *remotes; |
| int next, result; |
| const struct fetch_config *config; |
| }; |
| |
| static int fetch_next_remote(struct child_process *cp, |
| struct strbuf *out UNUSED, |
| void *cb, void **task_cb) |
| { |
| struct parallel_fetch_state *state = cb; |
| char *remote; |
| |
| if (state->next < 0 || state->next >= state->remotes->nr) |
| return 0; |
| |
| remote = state->remotes->items[state->next++].string; |
| *task_cb = remote; |
| |
| strvec_pushv(&cp->args, state->argv); |
| strvec_push(&cp->args, remote); |
| cp->git_cmd = 1; |
| |
| if (verbosity >= 0 && state->config->display_format != DISPLAY_FORMAT_PORCELAIN) |
| printf(_("Fetching %s\n"), remote); |
| |
| return 1; |
| } |
| |
| static int fetch_failed_to_start(struct strbuf *out UNUSED, |
| void *cb, void *task_cb) |
| { |
| struct parallel_fetch_state *state = cb; |
| const char *remote = task_cb; |
| |
| state->result = error(_("could not fetch %s"), remote); |
| |
| return 0; |
| } |
| |
| static int fetch_finished(int result, struct strbuf *out, |
| void *cb, void *task_cb) |
| { |
| struct parallel_fetch_state *state = cb; |
| const char *remote = task_cb; |
| |
| if (result) { |
| strbuf_addf(out, _("could not fetch '%s' (exit code: %d)\n"), |
| remote, result); |
| state->result = -1; |
| } |
| |
| return 0; |
| } |
| |
| static int fetch_multiple(struct string_list *list, int max_children, |
| const struct fetch_config *config) |
| { |
| int i, result = 0; |
| struct strvec argv = STRVEC_INIT; |
| |
| if (!append && write_fetch_head) { |
| int errcode = truncate_fetch_head(); |
| if (errcode) |
| return errcode; |
| } |
| |
| /* |
| * Cancel out the fetch.bundleURI config when running subprocesses, |
| * to avoid fetching from the same bundle list multiple times. |
| */ |
| strvec_pushl(&argv, "-c", "fetch.bundleURI=", |
| "fetch", "--append", "--no-auto-gc", |
| "--no-write-commit-graph", NULL); |
| add_options_to_argv(&argv, config); |
| |
| if (max_children != 1 && list->nr != 1) { |
| struct parallel_fetch_state state = { argv.v, list, 0, 0, config }; |
| const struct run_process_parallel_opts opts = { |
| .tr2_category = "fetch", |
| .tr2_label = "parallel/fetch", |
| |
| .processes = max_children, |
| |
| .get_next_task = &fetch_next_remote, |
| .start_failure = &fetch_failed_to_start, |
| .task_finished = &fetch_finished, |
| .data = &state, |
| }; |
| |
| strvec_push(&argv, "--end-of-options"); |
| |
| run_processes_parallel(&opts); |
| result = state.result; |
| } else |
| for (i = 0; i < list->nr; i++) { |
| const char *name = list->items[i].string; |
| struct child_process cmd = CHILD_PROCESS_INIT; |
| |
| strvec_pushv(&cmd.args, argv.v); |
| strvec_push(&cmd.args, name); |
| if (verbosity >= 0 && config->display_format != DISPLAY_FORMAT_PORCELAIN) |
| printf(_("Fetching %s\n"), name); |
| cmd.git_cmd = 1; |
| if (run_command(&cmd)) { |
| error(_("could not fetch %s"), name); |
| result = 1; |
| } |
| } |
| |
| strvec_clear(&argv); |
| return !!result; |
| } |
| |
| /* |
| * Fetching from the promisor remote should use the given filter-spec |
| * or inherit the default filter-spec from the config. |
| */ |
| static inline void fetch_one_setup_partial(struct remote *remote) |
| { |
| /* |
| * Explicit --no-filter argument overrides everything, regardless |
| * of any prior partial clones and fetches. |
| */ |
| if (filter_options.no_filter) |
| return; |
| |
| /* |
| * If no prior partial clone/fetch and the current fetch DID NOT |
| * request a partial-fetch, do a normal fetch. |
| */ |
| if (!repo_has_promisor_remote(the_repository) && !filter_options.choice) |
| return; |
| |
| /* |
| * If this is a partial-fetch request, we enable partial on |
| * this repo if not already enabled and remember the given |
| * filter-spec as the default for subsequent fetches to this |
| * remote if there is currently no default filter-spec. |
| */ |
| if (filter_options.choice) { |
| partial_clone_register(remote->name, &filter_options); |
| return; |
| } |
| |
| /* |
| * Do a partial-fetch from the promisor remote using either the |
| * explicitly given filter-spec or inherit the filter-spec from |
| * the config. |
| */ |
| if (!filter_options.choice) |
| partial_clone_get_default_filter_spec(&filter_options, remote->name); |
| return; |
| } |
| |
| static int fetch_one(struct remote *remote, int argc, const char **argv, |
| int prune_tags_ok, int use_stdin_refspecs, |
| const struct fetch_config *config) |
| { |
| struct refspec rs = REFSPEC_INIT_FETCH; |
| int i; |
| int exit_code; |
| int maybe_prune_tags; |
| int remote_via_config = remote_is_configured(remote, 0); |
| |
| if (!remote) |
| die(_("no remote repository specified; please specify either a URL or a\n" |
| "remote name from which new revisions should be fetched")); |
| |
| gtransport = prepare_transport(remote, 1); |
| |
| if (prune < 0) { |
| /* no command line request */ |
| if (0 <= remote->prune) |
| prune = remote->prune; |
| else if (0 <= config->prune) |
| prune = config->prune; |
| else |
| prune = PRUNE_BY_DEFAULT; |
| } |
| |
| if (prune_tags < 0) { |
| /* no command line request */ |
| if (0 <= remote->prune_tags) |
| prune_tags = remote->prune_tags; |
| else if (0 <= config->prune_tags) |
| prune_tags = config->prune_tags; |
| else |
| prune_tags = PRUNE_TAGS_BY_DEFAULT; |
| } |
| |
| maybe_prune_tags = prune_tags_ok && prune_tags; |
| if (maybe_prune_tags && remote_via_config) |
| refspec_append(&remote->fetch, TAG_REFSPEC); |
| |
| if (maybe_prune_tags && (argc || !remote_via_config)) |
| refspec_append(&rs, TAG_REFSPEC); |
| |
| for (i = 0; i < argc; i++) { |
| if (!strcmp(argv[i], "tag")) { |
| i++; |
| if (i >= argc) |
| die(_("you need to specify a tag name")); |
| |
| refspec_appendf(&rs, "refs/tags/%s:refs/tags/%s", |
| argv[i], argv[i]); |
| } else { |
| refspec_append(&rs, argv[i]); |
| } |
| } |
| |
| if (use_stdin_refspecs) { |
| struct strbuf line = STRBUF_INIT; |
| while (strbuf_getline_lf(&line, stdin) != EOF) |
| refspec_append(&rs, line.buf); |
| strbuf_release(&line); |
| } |
| |
| if (server_options.nr) |
| gtransport->server_options = &server_options; |
| |
| sigchain_push_common(unlock_pack_on_signal); |
| atexit(unlock_pack_atexit); |
| sigchain_push(SIGPIPE, SIG_IGN); |
| exit_code = do_fetch(gtransport, &rs, config); |
| sigchain_pop(SIGPIPE); |
| refspec_clear(&rs); |
| transport_disconnect(gtransport); |
| gtransport = NULL; |
| return exit_code; |
| } |
| |
| int cmd_fetch(int argc, const char **argv, const char *prefix) |
| { |
| struct fetch_config config = { |
| .display_format = DISPLAY_FORMAT_FULL, |
| .prune = -1, |
| .prune_tags = -1, |
| .show_forced_updates = 1, |
| .recurse_submodules = RECURSE_SUBMODULES_DEFAULT, |
| .parallel = 1, |
| .submodule_fetch_jobs = -1, |
| }; |
| const char *submodule_prefix = ""; |
| const char *bundle_uri; |
| struct string_list list = STRING_LIST_INIT_DUP; |
| struct remote *remote = NULL; |
| int all = -1, multiple = 0; |
| int result = 0; |
| int prune_tags_ok = 1; |
| int enable_auto_gc = 1; |
| int unshallow = 0; |
| int max_jobs = -1; |
| int recurse_submodules_cli = RECURSE_SUBMODULES_DEFAULT; |
| int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND; |
| int fetch_write_commit_graph = -1; |
| int stdin_refspecs = 0; |
| int negotiate_only = 0; |
| int porcelain = 0; |
| int i; |
| |
| struct option builtin_fetch_options[] = { |
| OPT__VERBOSITY(&verbosity), |
| OPT_BOOL(0, "all", &all, |
| N_("fetch from all remotes")), |
| OPT_BOOL(0, "set-upstream", &set_upstream, |
| N_("set upstream for git pull/fetch")), |
| OPT_BOOL('a', "append", &append, |
| N_("append to .git/FETCH_HEAD instead of overwriting")), |
| OPT_BOOL(0, "atomic", &atomic_fetch, |
| N_("use atomic transaction to update references")), |
| OPT_STRING(0, "upload-pack", &upload_pack, N_("path"), |
| N_("path to upload pack on remote end")), |
| OPT__FORCE(&force, N_("force overwrite of local reference"), 0), |
| OPT_BOOL('m', "multiple", &multiple, |
| N_("fetch from multiple remotes")), |
| OPT_SET_INT('t', "tags", &tags, |
| N_("fetch all tags and associated objects"), TAGS_SET), |
| OPT_SET_INT('n', NULL, &tags, |
| N_("do not fetch all tags (--no-tags)"), TAGS_UNSET), |
| OPT_INTEGER('j', "jobs", &max_jobs, |
| N_("number of submodules fetched in parallel")), |
| OPT_BOOL(0, "prefetch", &prefetch, |
| N_("modify the refspec to place all refs within refs/prefetch/")), |
| OPT_BOOL('p', "prune", &prune, |
| N_("prune remote-tracking branches no longer on remote")), |
| OPT_BOOL('P', "prune-tags", &prune_tags, |
| N_("prune local tags no longer on remote and clobber changed tags")), |
| OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules_cli, N_("on-demand"), |
| N_("control recursive fetching of submodules"), |
| PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules), |
| OPT_BOOL(0, "dry-run", &dry_run, |
| N_("dry run")), |
| OPT_BOOL(0, "porcelain", &porcelain, N_("machine-readable output")), |
| OPT_BOOL(0, "write-fetch-head", &write_fetch_head, |
| N_("write fetched references to the FETCH_HEAD file")), |
| OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")), |
| OPT_BOOL('u', "update-head-ok", &update_head_ok, |
| N_("allow updating of HEAD ref")), |
| OPT_BOOL(0, "progress", &progress, N_("force progress reporting")), |
| OPT_STRING(0, "depth", &depth, N_("depth"), |
| N_("deepen history of shallow clone")), |
| OPT_STRING(0, "shallow-since", &deepen_since, N_("time"), |
| N_("deepen history of shallow repository based on time")), |
| OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"), |
| N_("deepen history of shallow clone, excluding rev")), |
| OPT_INTEGER(0, "deepen", &deepen_relative, |
| N_("deepen history of shallow clone")), |
| OPT_SET_INT_F(0, "unshallow", &unshallow, |
| N_("convert to a complete repository"), |
| 1, PARSE_OPT_NONEG), |
| OPT_SET_INT_F(0, "refetch", &refetch, |
| N_("re-fetch without negotiating common commits"), |
| 1, PARSE_OPT_NONEG), |
| { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"), |
| N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN }, |
| OPT_CALLBACK_F(0, "recurse-submodules-default", |
| &recurse_submodules_default, N_("on-demand"), |
| N_("default for recursive fetching of submodules " |
| "(lower priority than config files)"), |
| PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules), |
| OPT_BOOL(0, "update-shallow", &update_shallow, |
| N_("accept refs that update .git/shallow")), |
| OPT_CALLBACK_F(0, "refmap", &refmap, N_("refmap"), |
| N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg), |
| OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")), |
| OPT_IPVERSION(&family), |
| OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip, N_("revision"), |
| N_("report that we have only objects reachable from this object")), |
| OPT_BOOL(0, "negotiate-only", &negotiate_only, |
| N_("do not fetch a packfile; instead, print ancestors of negotiation tips")), |
| OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), |
| OPT_BOOL(0, "auto-maintenance", &enable_auto_gc, |
| N_("run 'maintenance --auto' after fetching")), |
| OPT_BOOL(0, "auto-gc", &enable_auto_gc, |
| N_("run 'maintenance --auto' after fetching")), |
| OPT_BOOL(0, "show-forced-updates", &config.show_forced_updates, |
| N_("check for forced-updates on all updated branches")), |
| OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph, |
| N_("write the commit-graph after fetching")), |
| OPT_BOOL(0, "stdin", &stdin_refspecs, |
| N_("accept refspecs from stdin")), |
| OPT_END() |
| }; |
| |
| packet_trace_identity("fetch"); |
| |
| /* Record the command line for the reflog */ |
| strbuf_addstr(&default_rla, "fetch"); |
| for (i = 1; i < argc; i++) { |
| /* This handles non-URLs gracefully */ |
| char *anon = transport_anonymize_url(argv[i]); |
| |
| strbuf_addf(&default_rla, " %s", anon); |
| free(anon); |
| } |
| |
| git_config(git_fetch_config, &config); |
| if (the_repository->gitdir) { |
| prepare_repo_settings(the_repository); |
| the_repository->settings.command_requires_full_index = 0; |
| } |
| |
| argc = parse_options(argc, argv, prefix, |
| builtin_fetch_options, builtin_fetch_usage, 0); |
| |
| if (recurse_submodules_cli != RECURSE_SUBMODULES_DEFAULT) |
| config.recurse_submodules = recurse_submodules_cli; |
| |
| if (negotiate_only) { |
| switch (recurse_submodules_cli) { |
| case RECURSE_SUBMODULES_OFF: |
| case RECURSE_SUBMODULES_DEFAULT: |
| /* |
| * --negotiate-only should never recurse into |
| * submodules. Skip it by setting recurse_submodules to |
| * RECURSE_SUBMODULES_OFF. |
| */ |
| config.recurse_submodules = RECURSE_SUBMODULES_OFF; |
| break; |
| |
| default: |
| die(_("options '%s' and '%s' cannot be used together"), |
| "--negotiate-only", "--recurse-submodules"); |
| } |
| } |
| |
| if (config.recurse_submodules != RECURSE_SUBMODULES_OFF) { |
| int *sfjc = config.submodule_fetch_jobs == -1 |
| ? &config.submodule_fetch_jobs : NULL; |
| int *rs = config.recurse_submodules == RECURSE_SUBMODULES_DEFAULT |
| ? &config.recurse_submodules : NULL; |
| |
| fetch_config_from_gitmodules(sfjc, rs); |
| } |
| |
| |
| if (porcelain) { |
| switch (recurse_submodules_cli) { |
| case RECURSE_SUBMODULES_OFF: |
| case RECURSE_SUBMODULES_DEFAULT: |
| /* |
| * Reference updates in submodules would be ambiguous |
| * in porcelain mode, so we reject this combination. |
| */ |
| config.recurse_submodules = RECURSE_SUBMODULES_OFF; |
| break; |
| |
| default: |
| die(_("options '%s' and '%s' cannot be used together"), |
| "--porcelain", "--recurse-submodules"); |
| } |
| |
| config.display_format = DISPLAY_FORMAT_PORCELAIN; |
| } |
| |
| if (negotiate_only && !negotiation_tip.nr) |
| die(_("--negotiate-only needs one or more --negotiation-tip=*")); |
| |
| if (deepen_relative) { |
| if (deepen_relative < 0) |
| die(_("negative depth in --deepen is not supported")); |
| if (depth) |
| die(_("options '%s' and '%s' cannot be used together"), "--deepen", "--depth"); |
| depth = xstrfmt("%d", deepen_relative); |
| } |
| if (unshallow) { |
| if (depth) |
| die(_("options '%s' and '%s' cannot be used together"), "--depth", "--unshallow"); |
| else if (!is_repository_shallow(the_repository)) |
| die(_("--unshallow on a complete repository does not make sense")); |
| else |
| depth = xstrfmt("%d", INFINITE_DEPTH); |
| } |
| |
| /* no need to be strict, transport_set_option() will validate it again */ |
| if (depth && atoi(depth) < 1) |
| die(_("depth %s is not a positive number"), depth); |
| if (depth || deepen_since || deepen_not.nr) |
| deepen = 1; |
| |
| /* FETCH_HEAD never gets updated in --dry-run mode */ |
| if (dry_run) |
| write_fetch_head = 0; |
| |
| if (!max_jobs) |
| max_jobs = online_cpus(); |
| |
| if (!git_config_get_string_tmp("fetch.bundleuri", &bundle_uri) && |
| fetch_bundle_uri(the_repository, bundle_uri, NULL)) |
| warning(_("failed to fetch bundles from '%s'"), bundle_uri); |
| |
| if (all < 0) { |
| /* |
| * no --[no-]all given; |
| * only use config option if no remote was explicitly specified |
| */ |
| all = (!argc) ? config.all : 0; |
| } |
| |
| if (all) { |
| if (argc == 1) |
| die(_("fetch --all does not take a repository argument")); |
| else if (argc > 1) |
| die(_("fetch --all does not make sense with refspecs")); |
| |
| (void) for_each_remote(get_one_remote_for_fetch, &list); |
| |
| /* do not do fetch_multiple() of one */ |
| if (list.nr == 1) |
| remote = remote_get(list.items[0].string); |
| } else if (argc == 0) { |
| /* No arguments -- use default remote */ |
| remote = remote_get(NULL); |
| } else if (multiple) { |
| /* All arguments are assumed to be remotes or groups */ |
| for (i = 0; i < argc; i++) |
| if (!add_remote_or_group(argv[i], &list)) |
| die(_("no such remote or remote group: %s"), |
| argv[i]); |
| } else { |
| /* Single remote or group */ |
| (void) add_remote_or_group(argv[0], &list); |
| if (list.nr > 1) { |
| /* More than one remote */ |
| if (argc > 1) |
| die(_("fetching a group and specifying refspecs does not make sense")); |
| } else { |
| /* Zero or one remotes */ |
| remote = remote_get(argv[0]); |
| prune_tags_ok = (argc == 1); |
| argc--; |
| argv++; |
| } |
| } |
| string_list_remove_duplicates(&list, 0); |
| |
| if (negotiate_only) { |
| struct oidset acked_commits = OIDSET_INIT; |
| struct oidset_iter iter; |
| const struct object_id *oid; |
| |
| if (!remote) |
| die(_("must supply remote when using --negotiate-only")); |
| gtransport = prepare_transport(remote, 1); |
| if (gtransport->smart_options) { |
| gtransport->smart_options->acked_commits = &acked_commits; |
| } else { |
| warning(_("protocol does not support --negotiate-only, exiting")); |
| result = 1; |
| goto cleanup; |
| } |
| if (server_options.nr) |
| gtransport->server_options = &server_options; |
| result = transport_fetch_refs(gtransport, NULL); |
| |
| oidset_iter_init(&acked_commits, &iter); |
| while ((oid = oidset_iter_next(&iter))) |
| printf("%s\n", oid_to_hex(oid)); |
| oidset_clear(&acked_commits); |
| } else if (remote) { |
| if (filter_options.choice || repo_has_promisor_remote(the_repository)) |
| fetch_one_setup_partial(remote); |
| result = fetch_one(remote, argc, argv, prune_tags_ok, stdin_refspecs, |
| &config); |
| } else { |
| int max_children = max_jobs; |
| |
| if (filter_options.choice) |
| die(_("--filter can only be used with the remote " |
| "configured in extensions.partialclone")); |
| |
| if (atomic_fetch) |
| die(_("--atomic can only be used when fetching " |
| "from one remote")); |
| |
| if (stdin_refspecs) |
| die(_("--stdin can only be used when fetching " |
| "from one remote")); |
| |
| if (max_children < 0) |
| max_children = config.parallel; |
| |
| /* TODO should this also die if we have a previous partial-clone? */ |
| result = fetch_multiple(&list, max_children, &config); |
| } |
| |
| /* |
| * This is only needed after fetch_one(), which does not fetch |
| * submodules by itself. |
| * |
| * When we fetch from multiple remotes, fetch_multiple() has |
| * already updated submodules to grab commits necessary for |
| * the fetched history from each remote, so there is no need |
| * to fetch submodules from here. |
| */ |
| if (!result && remote && (config.recurse_submodules != RECURSE_SUBMODULES_OFF)) { |
| struct strvec options = STRVEC_INIT; |
| int max_children = max_jobs; |
| |
| if (max_children < 0) |
| max_children = config.submodule_fetch_jobs; |
| if (max_children < 0) |
| max_children = config.parallel; |
| |
| add_options_to_argv(&options, &config); |
| result = fetch_submodules(the_repository, |
| &options, |
| submodule_prefix, |
| config.recurse_submodules, |
| recurse_submodules_default, |
| verbosity < 0, |
| max_children); |
| strvec_clear(&options); |
| } |
| |
| /* |
| * Skip irrelevant tasks because we know objects were not |
| * fetched. |
| * |
| * NEEDSWORK: as a future optimization, we can return early |
| * whenever objects were not fetched e.g. if we already have all |
| * of them. |
| */ |
| if (negotiate_only) |
| goto cleanup; |
| |
| prepare_repo_settings(the_repository); |
| if (fetch_write_commit_graph > 0 || |
| (fetch_write_commit_graph < 0 && |
| the_repository->settings.fetch_write_commit_graph)) { |
| int commit_graph_flags = COMMIT_GRAPH_WRITE_SPLIT; |
| |
| if (progress) |
| commit_graph_flags |= COMMIT_GRAPH_WRITE_PROGRESS; |
| |
| write_commit_graph_reachable(the_repository->objects->odb, |
| commit_graph_flags, |
| NULL); |
| } |
| |
| if (enable_auto_gc) { |
| if (refetch) { |
| /* |
| * Hint auto-maintenance strongly to encourage repacking, |
| * but respect config settings disabling it. |
| */ |
| int opt_val; |
| if (git_config_get_int("gc.autopacklimit", &opt_val)) |
| opt_val = -1; |
| if (opt_val != 0) |
| git_config_push_parameter("gc.autoPackLimit=1"); |
| |
| if (git_config_get_int("maintenance.incremental-repack.auto", &opt_val)) |
| opt_val = -1; |
| if (opt_val != 0) |
| git_config_push_parameter("maintenance.incremental-repack.auto=-1"); |
| } |
| run_auto_maintenance(verbosity < 0); |
| } |
| |
| cleanup: |
| string_list_clear(&list, 0); |
| return result; |
| } |