diff options
Diffstat (limited to 'third_party/git/builtin/fetch.c')
| -rw-r--r-- | third_party/git/builtin/fetch.c | 1943 |
1 files changed, 0 insertions, 1943 deletions
diff --git a/third_party/git/builtin/fetch.c b/third_party/git/builtin/fetch.c deleted file mode 100644 index f9c3c49f14d9..000000000000 --- a/third_party/git/builtin/fetch.c +++ /dev/null @@ -1,1943 +0,0 @@ -/* - * "git fetch" - */ -#include "cache.h" -#include "config.h" -#include "repository.h" -#include "refs.h" -#include "refspec.h" -#include "object-store.h" -#include "oidset.h" -#include "commit.h" -#include "builtin.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 "packfile.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" - -#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 -}; - -static int fetch_prune_config = -1; /* unspecified */ -static int fetch_show_forced_updates = 1; -static uint64_t forced_updates_ms = 0; -static int prune = -1; /* unspecified */ -#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */ - -static int fetch_prune_tags_config = -1; /* unspecified */ -static int prune_tags = -1; /* unspecified */ -#define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */ - -static int all, append, dry_run, force, keep, multiple, update_head_ok; -static int write_fetch_head = 1; -static int verbosity, deepen_relative, set_upstream; -static int progress = -1; -static int enable_auto_gc = 1; -static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen; -static int max_jobs = -1, submodule_fetch_jobs_config = -1; -static int fetch_parallel_config = 1; -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 const char *submodule_prefix = ""; -static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT; -static int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND; -static int shown_url = 0; -static struct refspec refmap = REFSPEC_INIT_FETCH; -static struct list_objects_filter_options filter_options; -static struct string_list server_options = STRING_LIST_INIT_DUP; -static struct string_list negotiation_tip = STRING_LIST_INIT_NODUP; -static int fetch_write_commit_graph = -1; -static int stdin_refspecs = 0; - -static int git_fetch_config(const char *k, const char *v, void *cb) -{ - if (!strcmp(k, "fetch.prune")) { - fetch_prune_config = git_config_bool(k, v); - return 0; - } - - if (!strcmp(k, "fetch.prunetags")) { - fetch_prune_tags_config = git_config_bool(k, v); - return 0; - } - - if (!strcmp(k, "fetch.showforcedupdates")) { - fetch_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; - recurse_submodules = r; - } - - if (!strcmp(k, "submodule.fetchjobs")) { - submodule_fetch_jobs_config = parse_submodule_fetchjobs(k, v); - return 0; - } else if (!strcmp(k, "fetch.recursesubmodules")) { - recurse_submodules = parse_fetch_recurse_submodules_arg(k, v); - return 0; - } - - if (!strcmp(k, "fetch.parallel")) { - fetch_parallel_config = git_config_int(k, v); - if (fetch_parallel_config < 0) - die(_("fetch.parallel cannot be negative")); - return 0; - } - - return git_default_config(k, v, 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(&refmap, arg); - - return 0; -} - -static 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_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('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, 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, "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), - { 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", NULL, 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_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), - TRANSPORT_FAMILY_IPV4), - OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), - TRANSPORT_FAMILY_IPV6), - OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip, N_("revision"), - N_("report that we have only objects reachable from this object")), - 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", &fetch_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() -}; - -static void unlock_pack(void) -{ - if (gtransport) - transport_unlock_pack(gtransport); - if (gsecondary) - transport_unlock_pack(gsecondary); -} - -static void unlock_pack_on_signal(int signo) -{ - unlock_pack(); - 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, - 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, 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 find_non_local_tags(const struct ref *refs, - 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); - - for_each_ref(add_one_refname, &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 && - !has_object_file_with_flags(&ref->old_oid, quick_flags) && - !oidset_contains(&fetch_oids, &ref->old_oid) && - !has_object_file_with_flags(&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 && - !has_object_file_with_flags(&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_free_entries(&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 && - !has_object_file_with_flags(&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_free_entries(&remote_refs, struct refname_hash_entry, ent); - string_list_clear(&remote_refs_list, 0); - oidset_clear(&fetch_oids); -} - -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; - - 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 { - 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) - /* also fetch all tags */ - get_fetch_map(remote_refs, tag_refspec, &tail, 0); - else if (tags == TAGS_DEFAULT && *autotags) - find_non_local_tags(remote_refs, &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); - for_each_ref(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_free_entries(&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, - int check_old) -{ - char *msg; - char *rla = getenv("GIT_REFLOG_ACTION"); - struct ref_transaction *transaction; - struct strbuf err = STRBUF_INIT; - int ret, df_conflict = 0; - - if (dry_run) - return 0; - if (!rla) - rla = default_rla.buf; - msg = xstrfmt("%s: %s", rla, action); - - transaction = ref_transaction_begin(&err); - if (!transaction || - ref_transaction_update(transaction, ref->name, - &ref->new_oid, - check_old ? &ref->old_oid : NULL, - 0, msg, &err)) - goto fail; - - ret = ref_transaction_commit(transaction, &err); - if (ret) { - df_conflict = (ret == TRANSACTION_NAME_CONFLICT); - goto fail; - } - - ref_transaction_free(transaction); - strbuf_release(&err); - free(msg); - return 0; -fail: - ref_transaction_free(transaction); - error("%s", err.buf); - strbuf_release(&err); - free(msg); - return df_conflict ? STORE_REF_ERROR_DF_CONFLICT - : STORE_REF_ERROR_OTHER; -} - -static int refcol_width = 10; -static int compact_format; - -static void adjust_refcol_width(const struct ref *ref) -{ - int max, rlen, llen, len; - - /* uptodate lines are only shown on high verbosity level */ - if (!verbosity && oideq(&ref->peer_ref->old_oid, &ref->old_oid)) - return; - - max = term_columns(); - rlen = utf8_strwidth(prettify_refname(ref->name)); - - 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) - */ - if (compact_format) { - llen = 0; - max = max * 2 / 3; - } - len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen; - if (len >= max) - return; - - /* - * Not precise calculation for compact mode because '*' can - * appear on the left hand side of '->' and shrink the column - * back. - */ - if (refcol_width < rlen) - refcol_width = rlen; -} - -static void prepare_format_display(struct ref *ref_map) -{ - struct ref *rm; - const char *format = "full"; - - git_config_get_string_tmp("fetch.output", &format); - if (!strcasecmp(format, "full")) - compact_format = 0; - else if (!strcasecmp(format, "compact")) - compact_format = 1; - else - die(_("configuration fetch.output contains invalid value %s"), - format); - - for (rm = ref_map; rm; rm = rm->next) { - if (rm->status == REF_STATUS_REJECT_SHALLOW || - !rm->peer_ref || - !strcmp(rm->name, "HEAD")) - continue; - - adjust_refcol_width(rm); - } -} - -static void print_remote_to_local(struct strbuf *display, - const char *remote, const char *local) -{ - strbuf_addf(display, "%-*s -> %s", 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 strbuf *display, - const char *remote, const char *local) -{ - struct strbuf r = STRBUF_INIT; - struct strbuf l = STRBUF_INIT; - - if (!strcmp(remote, local)) { - strbuf_addf(display, "%-*s -> *", 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, r.buf, l.buf); - - strbuf_release(&r); - strbuf_release(&l); -} - -static void format_display(struct strbuf *display, char code, - const char *summary, const char *error, - const char *remote, const char *local, - int summary_width) -{ - int width = (summary_width + strlen(summary) - gettext_width(summary)); - - strbuf_addf(display, "%c %-*s ", code, width, summary); - if (!compact_format) - print_remote_to_local(display, remote, local); - else - print_compact(display, remote, local); - if (error) - strbuf_addf(display, " (%s)", error); -} - -static int update_local_ref(struct ref *ref, - const char *remote, - const struct ref *remote_ref, - struct strbuf *display, - int summary_width) -{ - struct commit *current = NULL, *updated; - enum object_type type; - struct branch *current_branch = branch_get(NULL); - const char *pretty_ref = prettify_refname(ref->name); - int fast_forward = 0; - - type = oid_object_info(the_repository, &ref->new_oid, NULL); - if (type < 0) - die(_("object %s not found"), oid_to_hex(&ref->new_oid)); - - if (oideq(&ref->old_oid, &ref->new_oid)) { - if (verbosity > 0) - format_display(display, '=', _("[up to date]"), NULL, - remote, pretty_ref, summary_width); - return 0; - } - - if (current_branch && - !strcmp(ref->name, current_branch->name) && - !(update_head_ok || is_bare_repository()) && - !is_null_oid(&ref->old_oid)) { - /* - * If this is the head, and it's not okay to update - * the head, and the old value of the head isn't empty... - */ - format_display(display, '!', _("[rejected]"), - _("can't fetch in current branch"), - remote, pretty_ref, 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, 0); - format_display(display, r ? '!' : 't', _("[tag update]"), - r ? _("unable to update local ref") : NULL, - remote, pretty_ref, summary_width); - return r; - } else { - format_display(display, '!', _("[rejected]"), _("would clobber existing tag"), - remote, pretty_ref, 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. - */ - const char *name = remote_ref ? remote_ref->name : ""; - if (starts_with(name, "refs/tags/")) { - msg = "storing tag"; - what = _("[new tag]"); - } else if (starts_with(name, "refs/heads/")) { - msg = "storing head"; - what = _("[new branch]"); - } else { - msg = "storing ref"; - what = _("[new ref]"); - } - - r = s_update_ref(msg, ref, 0); - format_display(display, r ? '!' : '*', what, - r ? _("unable to update local ref") : NULL, - remote, pretty_ref, summary_width); - return r; - } - - if (fetch_show_forced_updates) { - uint64_t t_before = getnanotime(); - fast_forward = in_merge_bases(current, updated); - 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, 1); - format_display(display, r ? '!' : ' ', quickref.buf, - r ? _("unable to update local ref") : NULL, - remote, pretty_ref, 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, 1); - format_display(display, r ? '!' : '+', quickref.buf, - r ? _("unable to update local ref") : _("forced update"), - remote, pretty_ref, summary_width); - strbuf_release(&quickref); - return r; - } else { - format_display(display, '!', _("[rejected]"), _("non-fast-forward"), - remote, pretty_ref, summary_width); - return 1; - } -} - -static int iterate_ref_map(void *cb_data, struct object_id *oid) -{ - struct ref **rm = cb_data; - struct ref *ref = *rm; - - while (ref && ref->status == REF_STATUS_REJECT_SHALLOW) - ref = ref->next; - if (!ref) - return -1; /* end of the list */ - *rm = ref->next; - oidcpy(oid, &ref->old_oid); - return 0; -} - -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(const char *raw_url, const char *remote_name, - int connectivity_checked, struct ref *ref_map) -{ - FILE *fp; - struct commit *commit; - int url_len, i, rc = 0; - struct strbuf note = STRBUF_INIT; - const char *what, *kind; - struct ref *rm; - char *url; - const char *filename = (!write_fetch_head - ? "/dev/null" - : git_path_fetch_head(the_repository)); - int want_status; - int summary_width = transport_summary_width(ref_map); - - fp = fopen(filename, "a"); - if (!fp) - return error_errno(_("cannot open %s"), filename); - - if (raw_url) - url = transport_anonymize_url(raw_url); - else - url = xstrdup("foreign"); - - if (!connectivity_checked) { - struct check_connected_options opt = CHECK_CONNECTED_INIT; - - rm = ref_map; - if (check_connected(iterate_ref_map, &rm, &opt)) { - rc = error(_("%s did not send all necessary objects\n"), url); - goto abort; - } - } - - prepare_format_display(ref_map); - - /* - * 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; - const char *merge_status_marker = ""; - - if (rm->status == REF_STATUS_REJECT_SHALLOW) { - if (want_status == FETCH_HEAD_MERGE) - warning(_("reject %s because shallow roots are not allowed to be updated"), - rm->peer_ref ? rm->peer_ref->name : rm->name); - continue; - } - - 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 (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; - } - - url_len = strlen(url); - for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) - ; - url_len = i + 1; - if (4 < i && !strncmp(".git", url + i - 3, 4)) - url_len = i - 3; - - strbuf_reset(¬e); - if (*what) { - if (*kind) - strbuf_addf(¬e, "%s ", kind); - strbuf_addf(¬e, "'%s' of ", what); - } - switch (rm->fetch_head_status) { - case FETCH_HEAD_NOT_FOR_MERGE: - merge_status_marker = "not-for-merge"; - /* fall-through */ - case FETCH_HEAD_MERGE: - fprintf(fp, "%s\t%s\t%s", - oid_to_hex(&rm->old_oid), - merge_status_marker, - note.buf); - for (i = 0; i < url_len; ++i) - if ('\n' == url[i]) - fputs("\\n", fp); - else - fputc(url[i], fp); - fputc('\n', fp); - break; - default: - /* do not write anything to FETCH_HEAD */ - break; - } - - strbuf_reset(¬e); - if (ref) { - rc |= update_local_ref(ref, what, rm, ¬e, - summary_width); - 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). - */ - format_display(¬e, '*', - *kind ? kind : "branch", NULL, - *what ? what : "HEAD", - "FETCH_HEAD", summary_width); - } - if (note.len) { - if (verbosity >= 0 && !shown_url) { - fprintf(stderr, _("From %.*s\n"), - url_len, url); - shown_url = 1; - } - if (verbosity >= 0) - fprintf(stderr, " %s\n", note.buf); - } - } - } - - 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_fetch_show_forced_updates) { - if (!fetch_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); - free(url); - fclose(fp); - 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; - - /* - * check_connected() allows objects to merely be promised, but - * we need all direct targets to exist. - */ - for (r = rm; r; r = r->next) { - if (!has_object_file_with_flags(&r->old_oid, - OBJECT_INFO_SKIP_FETCH_OBJECT)) - return -1; - } - - opt.quiet = 1; - return check_connected(iterate_ref_map, &rm, &opt); -} - -static int fetch_refs(struct transport *transport, struct ref *ref_map) -{ - int 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) - /* - * Keep the new pack's ".keep" file around to allow the caller - * time to update refs to reference the new objects. - */ - return 0; - transport_unlock_pack(transport); - return ret; -} - -/* Update local refs based on the ref values fetched from a remote */ -static int consume_refs(struct transport *transport, struct ref *ref_map) -{ - int connectivity_checked = transport->smart_options - ? transport->smart_options->connectivity_checked : 0; - int ret; - trace2_region_enter("fetch", "consume_refs", the_repository); - ret = store_updated_refs(transport->url, - transport->remote->name, - connectivity_checked, - ref_map); - transport_unlock_pack(transport); - trace2_region_leave("fetch", "consume_refs", the_repository); - return ret; -} - -static int prune_refs(struct refspec *rs, struct ref *ref_map, - const char *raw_url) -{ - int url_len, i, result = 0; - struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map); - char *url; - int summary_width = transport_summary_width(stale_refs); - const char *dangling_msg = dry_run - ? _(" (%s will become dangling)") - : _(" (%s has become dangling)"); - - if (raw_url) - url = transport_anonymize_url(raw_url); - else - url = xstrdup("foreign"); - - url_len = strlen(url); - for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) - ; - - url_len = i + 1; - if (4 < i && !strncmp(".git", url + i - 3, 4)) - url_len = i - 3; - - if (!dry_run) { - struct string_list refnames = STRING_LIST_INIT_NODUP; - - for (ref = stale_refs; ref; ref = ref->next) - string_list_append(&refnames, ref->name); - - result = delete_refs("fetch: prune", &refnames, 0); - string_list_clear(&refnames, 0); - } - - if (verbosity >= 0) { - for (ref = stale_refs; ref; ref = ref->next) { - struct strbuf sb = STRBUF_INIT; - if (!shown_url) { - fprintf(stderr, _("From %.*s\n"), url_len, url); - shown_url = 1; - } - format_display(&sb, '-', _("[deleted]"), NULL, - _("(none)"), prettify_refname(ref->name), - summary_width); - fprintf(stderr, " %s\n",sb.buf); - strbuf_release(&sb); - warn_dangling_symref(stderr, dangling_msg, ref->name); - } - } - - free(url); - free_refs(stale_refs); - return result; -} - -static void check_not_current_branch(struct ref *ref_map) -{ - struct branch *current_branch = branch_get(NULL); - - if (is_bare_repository() || !current_branch) - return; - - for (; ref_map; ref_map = ref_map->next) - if (ref_map->peer_ref && !strcmp(current_branch->refname, - ref_map->peer_ref->name)) - die(_("Refusing to fetch into current branch %s " - "of non-bare repository"), current_branch->refname); -} - -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, const struct object_id *oid, int flags, - 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 (get_oid(s, &oid)) - die("%s is not a valid object", s); - oid_array_append(oids, &oid); - continue; - } - old_nr = oids->nr; - for_each_glob_ref(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 (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 void backfill_tags(struct transport *transport, struct ref *ref_map) -{ - int 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); - if (!fetch_refs(transport, ref_map)) - consume_refs(transport, ref_map); - - if (gsecondary) { - transport_disconnect(gsecondary); - gsecondary = NULL; - } -} - -static int do_fetch(struct transport *transport, - struct refspec *rs) -{ - struct ref *ref_map; - int autotags = (transport->remote->fetch_tags == 1); - int retcode = 0; - const struct ref *remote_refs; - struct strvec ref_prefixes = STRVEC_INIT; - int must_list_refs = 1; - - 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, &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 if (transport->remote && transport->remote->fetch.nr) - refspec_ref_prefixes(&transport->remote->fetch, &ref_prefixes); - - if (tags == TAGS_SET || tags == TAGS_DEFAULT) { - must_list_refs = 1; - if (ref_prefixes.nr) - strvec_push(&ref_prefixes, "refs/tags/"); - } - - if (must_list_refs) { - trace2_region_enter("fetch", "remote_refs", the_repository); - remote_refs = transport_get_remote_refs(transport, &ref_prefixes); - trace2_region_leave("fetch", "remote_refs", the_repository); - } else - remote_refs = NULL; - - strvec_clear(&ref_prefixes); - - ref_map = get_ref_map(transport->remote, remote_refs, rs, - tags, &autotags); - if (!update_head_ok) - check_not_current_branch(ref_map); - - 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) { - prune_refs(rs, ref_map, transport->url); - } else { - prune_refs(&transport->remote->fetch, - ref_map, - transport->url); - } - } - if (fetch_refs(transport, ref_map) || consume_refs(transport, ref_map)) { - free_refs(ref_map); - retcode = 1; - goto cleanup; - } - - 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 skip; - } else { - source_ref = rm; - } - } - } - if (source_ref) { - 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.")); - } - } - skip: - free_refs(ref_map); - - /* if neither --no-tags nor --tags was specified, do automated tag - * following ... */ - if (tags == TAGS_DEFAULT && autotags) { - struct ref **tail = &ref_map; - ref_map = NULL; - find_non_local_tags(remote_refs, &ref_map, &tail); - if (ref_map) - backfill_tags(transport, ref_map); - free_refs(ref_map); - } - - cleanup: - 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, 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) -{ - 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 (recurse_submodules == RECURSE_SUBMODULES_ON) - strvec_push(argv, "--recurse-submodules"); - else if (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"); -} - -/* Fetch multiple remotes in parallel */ - -struct parallel_fetch_state { - const char **argv; - struct string_list *remotes; - int next, result; -}; - -static int fetch_next_remote(struct child_process *cp, struct strbuf *out, - 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) - printf(_("Fetching %s\n"), remote); - - return 1; -} - -static int fetch_failed_to_start(struct strbuf *out, 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) -{ - int i, result = 0; - struct strvec argv = STRVEC_INIT; - - if (!append && write_fetch_head) { - int errcode = truncate_fetch_head(); - if (errcode) - return errcode; - } - - strvec_pushl(&argv, "fetch", "--append", "--no-auto-gc", - "--no-write-commit-graph", NULL); - add_options_to_argv(&argv); - - if (max_children != 1 && list->nr != 1) { - struct parallel_fetch_state state = { argv.v, list, 0, 0 }; - - strvec_push(&argv, "--end-of-options"); - result = run_processes_parallel_tr2(max_children, - &fetch_next_remote, - &fetch_failed_to_start, - &fetch_finished, - &state, - "fetch", "parallel/fetch"); - - if (!result) - result = state.result; - } else - for (i = 0; i < list->nr; i++) { - const char *name = list->items[i].string; - strvec_push(&argv, name); - if (verbosity >= 0) - printf(_("Fetching %s\n"), name); - if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { - error(_("Could not fetch %s"), name); - result = 1; - } - strvec_pop(&argv); - } - - 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 (!has_promisor_remote() && !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) -{ - 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 <= fetch_prune_config) - prune = fetch_prune_config; - 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 <= fetch_prune_tags_config) - prune_tags = fetch_prune_tags_config; - 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); - sigchain_push(SIGPIPE, SIG_IGN); - exit_code = do_fetch(gtransport, &rs); - 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) -{ - int i; - struct string_list list = STRING_LIST_INIT_DUP; - struct remote *remote = NULL; - int result = 0; - int prune_tags_ok = 1; - - 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, NULL); - - argc = parse_options(argc, argv, prefix, - builtin_fetch_options, builtin_fetch_usage, 0); - if (recurse_submodules != RECURSE_SUBMODULES_OFF) { - int *sfjc = submodule_fetch_jobs_config == -1 - ? &submodule_fetch_jobs_config : NULL; - int *rs = recurse_submodules == RECURSE_SUBMODULES_DEFAULT - ? &recurse_submodules : NULL; - - fetch_config_from_gitmodules(sfjc, rs); - } - - if (deepen_relative) { - if (deepen_relative < 0) - die(_("Negative depth in --deepen is not supported")); - if (depth) - die(_("--deepen and --depth are mutually exclusive")); - depth = xstrfmt("%d", deepen_relative); - } - if (unshallow) { - if (depth) - die(_("--depth and --unshallow cannot be used together")); - 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 (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); - } 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++; - } - } - - if (remote) { - if (filter_options.choice || has_promisor_remote()) - fetch_one_setup_partial(remote); - result = fetch_one(remote, argc, argv, prune_tags_ok, stdin_refspecs); - } else { - int max_children = max_jobs; - - if (filter_options.choice) - die(_("--filter can only be used with the remote " - "configured in extensions.partialclone")); - - if (stdin_refspecs) - die(_("--stdin can only be used when fetching " - "from one remote")); - - if (max_children < 0) - max_children = fetch_parallel_config; - - /* TODO should this also die if we have a previous partial-clone? */ - result = fetch_multiple(&list, max_children); - } - - if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) { - struct strvec options = STRVEC_INIT; - int max_children = max_jobs; - - if (max_children < 0) - max_children = submodule_fetch_jobs_config; - if (max_children < 0) - max_children = fetch_parallel_config; - - add_options_to_argv(&options); - result = fetch_populated_submodules(the_repository, - &options, - submodule_prefix, - recurse_submodules, - recurse_submodules_default, - verbosity < 0, - max_children); - strvec_clear(&options); - } - - string_list_clear(&list, 0); - - 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); - } - - close_object_store(the_repository->objects); - - if (enable_auto_gc) - run_auto_maintenance(verbosity < 0); - - return result; -} |