diff options
Diffstat (limited to 'builtin/fetch.c')
| -rw-r--r-- | builtin/fetch.c | 592 |
1 files changed, 428 insertions, 164 deletions
diff --git a/builtin/fetch.c b/builtin/fetch.c index e0140327aa..ecf8537605 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -7,6 +7,7 @@ #include "refs.h" #include "refspec.h" #include "object-store.h" +#include "oidset.h" #include "commit.h" #include "builtin.h" #include "string-list.h" @@ -18,11 +19,17 @@ #include "submodule-config.h" #include "submodule.h" #include "connected.h" -#include "argv-array.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>...]]"), @@ -39,6 +46,8 @@ enum { }; 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? */ @@ -46,10 +55,14 @@ 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, verbosity, deepen_relative; +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_children = 1; +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; @@ -66,6 +79,8 @@ 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) { @@ -79,6 +94,11 @@ static int git_fetch_config(const char *k, const char *v, void *cb) 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; @@ -86,13 +106,20 @@ static int git_fetch_config(const char *k, const char *v, void *cb) } if (!strcmp(k, "submodule.fetchjobs")) { - max_children = parse_submodule_fetchjobs(k, v); + 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); } @@ -113,6 +140,8 @@ 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"), @@ -124,17 +153,19 @@ static struct option builtin_fetch_options[] = { 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_children, + 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")), - { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, N_("on-demand"), + 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 }, + 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")), @@ -152,15 +183,15 @@ static struct option builtin_fetch_options[] = { 1, PARSE_OPT_NONEG), { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"), N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN }, - { OPTION_CALLBACK, 0, "recurse-submodules-default", + 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 }, + PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules), OPT_BOOL(0, "update-shallow", &update_shallow, N_("accept refs that update .git/shallow")), - { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"), - N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg }, + 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), @@ -169,6 +200,16 @@ static struct option builtin_fetch_options[] = { 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() }; @@ -225,31 +266,31 @@ static void add_merge_config(struct ref **head, } } -static int will_fetch(struct ref **head, const unsigned char *sha1) +static void create_fetch_oidset(struct ref **head, struct oidset *out) { struct ref *rm = *head; while (rm) { - if (hasheq(rm->old_oid.hash, sha1)) - return 1; + oidset_insert(out, &rm->old_oid); rm = rm->next; } - return 0; } struct refname_hash_entry { - struct hashmap_entry ent; /* must be the first member */ + 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 void *e1_, - const void *e2_, + const struct hashmap_entry *eptr, + const struct hashmap_entry *entry_or_key, const void *keydata) { - const struct refname_hash_entry *e1 = e1_; - const struct refname_hash_entry *e2 = e2_; + 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); } @@ -261,9 +302,9 @@ static struct refname_hash_entry *refname_hash_add(struct hashmap *map, size_t len = strlen(refname); FLEX_ALLOC_MEM(ent, refname, refname, len); - hashmap_entry_init(ent, strhash(refname)); + hashmap_entry_init(&ent->ent, strhash(refname)); oidcpy(&ent->oid, oid); - hashmap_add(map, ent); + hashmap_add(map, &ent->ent); return ent; } @@ -287,19 +328,27 @@ 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) { @@ -314,13 +363,11 @@ static void find_non_local_tags(const struct ref *refs, */ if (ends_with(ref->name, "^{}")) { if (item && - !has_object_file_with_flags(&ref->old_oid, - OBJECT_INFO_QUICK) && - !will_fetch(head, ref->old_oid.hash) && - !has_sha1_file_with_flags(item->oid.hash, - OBJECT_INFO_QUICK) && - !will_fetch(head, item->oid.hash)) - oidclr(&item->oid); + !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; } @@ -332,9 +379,9 @@ static void find_non_local_tags(const struct ref *refs, * fetch. */ if (item && - !has_sha1_file_with_flags(item->oid.hash, OBJECT_INFO_QUICK) && - !will_fetch(head, item->oid.hash)) - oidclr(&item->oid); + !has_object_file_with_flags(&item->oid, quick_flags) && + !oidset_contains(&fetch_oids, &item->oid)) + clear_item(item); item = NULL; @@ -346,16 +393,16 @@ static void find_non_local_tags(const struct ref *refs, item = refname_hash_add(&remote_refs, ref->name, &ref->old_oid); string_list_insert(&remote_refs_list, ref->name); } - hashmap_free(&existing_refs, 1); + 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 && - !has_sha1_file_with_flags(item->oid.hash, OBJECT_INFO_QUICK) && - !will_fetch(head, item->oid.hash)) - oidclr(&item->oid); + !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, @@ -363,22 +410,27 @@ static void find_non_local_tags(const struct ref *refs, */ 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_from_hash(&remote_refs, strhash(refname), 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 (!is_null_oid(&item->oid)) { - struct ref *rm = alloc_ref(item->refname); - rm->peer_ref = alloc_ref(item->refname); - oidcpy(&rm->old_oid, &item->oid); - **tail = rm; - *tail = &rm->next; - } + 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(&remote_refs, 1); + hashmap_clear_and_free(&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, @@ -395,6 +447,7 @@ static struct ref *get_ref_map(struct remote *remote, struct ref *orefs = NULL, **oref_tail = &orefs; struct hashmap existing_refs; + int existing_refs_populated = 0; if (rs->nr) { struct refspec *fetch_refspec; @@ -486,26 +539,41 @@ static struct ref *get_ref_map(struct remote *remote, tail = &rm->next; } - ref_map = ref_remove_duplicates(ref_map); + /* + * 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); - refname_hash_init(&existing_refs); - for_each_ref(add_one_refname, &existing_refs); + 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_from_hash(&existing_refs, - strhash(refname), - refname); + 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); } } } - hashmap_free(&existing_refs, 1); + if (existing_refs_populated) + hashmap_clear_and_free(&existing_refs, struct refname_hash_entry, ent); return ref_map; } @@ -600,7 +668,7 @@ static void prepare_format_display(struct ref *ref_map) struct ref *rm; const char *format = "full"; - git_config_get_string_const("fetch.output", &format); + git_config_get_string_tmp("fetch.output", &format); if (!strcasecmp(format, "full")) compact_format = 0; else if (!strcasecmp(format, "compact")) @@ -629,9 +697,14 @@ static int find_and_replace(struct strbuf *haystack, const char *needle, const char *placeholder) { - const char *p = strstr(haystack->buf, needle); + 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; @@ -639,7 +712,6 @@ static int find_and_replace(struct strbuf *haystack, return 0; plen = strlen(p); - nlen = strlen(needle); if (plen > nlen && p[nlen] != '/') return 0; @@ -696,6 +768,7 @@ static int update_local_ref(struct ref *ref, 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) @@ -763,9 +836,6 @@ static int update_local_ref(struct ref *ref, what = _("[new ref]"); } - if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && - (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(&ref->new_oid); r = s_update_ref(msg, ref, 0); format_display(display, r ? '!' : '*', what, r ? _("unable to update local ref") : NULL, @@ -773,15 +843,21 @@ static int update_local_ref(struct ref *ref, return r; } - if (in_merge_bases(current, updated)) { + 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); - if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && - (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(&ref->new_oid); r = s_update_ref("fast-forward", ref, 1); format_display(display, r ? '!' : ' ', quickref.buf, r ? _("unable to update local ref") : NULL, @@ -794,9 +870,6 @@ static int update_local_ref(struct ref *ref, strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV); strbuf_addstr(&quickref, "..."); strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV); - if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && - (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(&ref->new_oid); r = s_update_ref("forced-update", ref, 1); format_display(display, r ? '!' : '+', quickref.buf, r ? _("unable to update local ref") : _("forced update"), @@ -824,6 +897,15 @@ static int iterate_ref_map(void *cb_data, struct object_id *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) { @@ -834,7 +916,9 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, const char *what, *kind; struct ref *rm; char *url; - const char *filename = dry_run ? "/dev/null" : git_path_fetch_head(the_repository); + 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); @@ -848,8 +932,10 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, url = xstrdup("foreign"); if (!connectivity_checked) { + struct check_connected_options opt = CHECK_CONNECTED_INIT; + rm = ref_map; - if (check_connected(iterate_ref_map, &rm, NULL)) { + if (check_connected(iterate_ref_map, &rm, &opt)) { rc = error(_("%s did not send all necessary objects\n"), url); goto abort; } @@ -892,23 +978,21 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, 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 (starts_with(rm->name, "refs/heads/")) { + else if (skip_prefix(rm->name, "refs/heads/", &what)) kind = "branch"; - what = rm->name + 11; - } - else if (starts_with(rm->name, "refs/tags/")) { + else if (skip_prefix(rm->name, "refs/tags/", &what)) kind = "tag"; - what = rm->name + 10; - } - else if (starts_with(rm->name, "refs/remotes/")) { + else if (skip_prefix(rm->name, "refs/remotes/", &what)) kind = "remote-tracking branch"; - what = rm->name + 13; - } else { kind = ""; what = rm->name; @@ -953,11 +1037,17 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, rc |= update_local_ref(ref, what, rm, ¬e, summary_width); free(ref); - } else + } 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"), @@ -975,6 +1065,15 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, " '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); @@ -1008,7 +1107,8 @@ static int check_exist_and_connected(struct ref *ref_map) * we need all direct targets to exist. */ for (r = rm; r; r = r->next) { - if (!has_object_file(&r->old_oid)) + if (!has_object_file_with_flags(&r->old_oid, + OBJECT_INFO_SKIP_FETCH_OBJECT)) return -1; } @@ -1019,8 +1119,11 @@ static int check_exist_and_connected(struct ref *ref_map) static int fetch_refs(struct transport *transport, struct ref *ref_map) { int ret = check_exist_and_connected(ref_map); - if (ret) + 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 @@ -1036,11 +1139,14 @@ 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 = store_updated_refs(transport->url, - transport->remote->name, - connectivity_checked, - ref_map); + 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; } @@ -1172,6 +1278,7 @@ static void add_negotiation_tips(struct git_transport_options *smart_options) 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; @@ -1191,8 +1298,9 @@ static struct transport *prepare_transport(struct remote *remote, int deepen) if (update_shallow) set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes"); if (filter_options.choice) { - set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, - filter_options.filter_spec); + 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) { @@ -1241,7 +1349,7 @@ static int do_fetch(struct transport *transport, int autotags = (transport->remote->fetch_tags == 1); int retcode = 0; const struct ref *remote_refs; - struct argv_array ref_prefixes = ARGV_ARRAY_INIT; + struct strvec ref_prefixes = STRVEC_INIT; int must_list_refs = 1; if (tags == TAGS_DEFAULT) { @@ -1252,7 +1360,7 @@ static int do_fetch(struct transport *transport, } /* if not appending, truncate FETCH_HEAD */ - if (!append && !dry_run) { + if (!append && write_fetch_head) { retcode = truncate_fetch_head(); if (retcode) goto cleanup; @@ -1279,16 +1387,18 @@ static int do_fetch(struct transport *transport, if (tags == TAGS_SET || tags == TAGS_DEFAULT) { must_list_refs = 1; - if (ref_prefixes.argc) - argv_array_push(&ref_prefixes, "refs/tags/"); + if (ref_prefixes.nr) + strvec_push(&ref_prefixes, "refs/tags/"); } - if (must_list_refs) + if (must_list_refs) { + trace2_region_enter("fetch", "remote_refs", the_repository); remote_refs = transport_get_remote_refs(transport, &ref_prefixes); - else + trace2_region_leave("fetch", "remote_refs", the_repository); + } else remote_refs = NULL; - argv_array_clear(&ref_prefixes); + strvec_clear(&ref_prefixes); ref_map = get_ref_map(transport->remote, remote_refs, rs, tags, &autotags); @@ -1316,6 +1426,51 @@ static int do_fetch(struct transport *transport, 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 @@ -1381,65 +1536,138 @@ static int add_remote_or_group(const char *name, struct string_list *list) return 1; } -static void add_options_to_argv(struct argv_array *argv) +static void add_options_to_argv(struct strvec *argv) { if (dry_run) - argv_array_push(argv, "--dry-run"); + strvec_push(argv, "--dry-run"); if (prune != -1) - argv_array_push(argv, prune ? "--prune" : "--no-prune"); + strvec_push(argv, prune ? "--prune" : "--no-prune"); if (prune_tags != -1) - argv_array_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags"); + strvec_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags"); if (update_head_ok) - argv_array_push(argv, "--update-head-ok"); + strvec_push(argv, "--update-head-ok"); if (force) - argv_array_push(argv, "--force"); + strvec_push(argv, "--force"); if (keep) - argv_array_push(argv, "--keep"); + strvec_push(argv, "--keep"); if (recurse_submodules == RECURSE_SUBMODULES_ON) - argv_array_push(argv, "--recurse-submodules"); + strvec_push(argv, "--recurse-submodules"); else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) - argv_array_push(argv, "--recurse-submodules=on-demand"); + strvec_push(argv, "--recurse-submodules=on-demand"); if (tags == TAGS_SET) - argv_array_push(argv, "--tags"); + strvec_push(argv, "--tags"); else if (tags == TAGS_UNSET) - argv_array_push(argv, "--no-tags"); + strvec_push(argv, "--no-tags"); if (verbosity >= 2) - argv_array_push(argv, "-v"); + strvec_push(argv, "-v"); if (verbosity >= 1) - argv_array_push(argv, "-v"); + strvec_push(argv, "-v"); else if (verbosity < 0) - argv_array_push(argv, "-q"); + 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) +static int fetch_multiple(struct string_list *list, int max_children) { int i, result = 0; - struct argv_array argv = ARGV_ARRAY_INIT; + struct strvec argv = STRVEC_INIT; - if (!append && !dry_run) { + if (!append && write_fetch_head) { int errcode = truncate_fetch_head(); if (errcode) return errcode; } - argv_array_pushl(&argv, "fetch", "--append", NULL); + strvec_pushl(&argv, "fetch", "--append", "--no-auto-gc", + "--no-write-commit-graph", NULL); add_options_to_argv(&argv); - for (i = 0; i < list->nr; i++) { - const char *name = list->items[i].string; - argv_array_push(&argv, name); - if (verbosity >= 0) - printf(_("Fetching %s\n"), name); - if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) { - error(_("Could not fetch %s"), name); - result = 1; + 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); } - argv_array_pop(&argv); - } - argv_array_clear(&argv); - return result; + strvec_clear(&argv); + return !!result; } /* @@ -1459,40 +1687,32 @@ static inline void fetch_one_setup_partial(struct remote *remote) * If no prior partial clone/fetch and the current fetch DID NOT * request a partial-fetch, do a normal fetch. */ - if (!repository_format_partial_clone && !filter_options.choice) + if (!has_promisor_remote() && !filter_options.choice) return; /* - * If this is the FIRST partial-fetch request, we enable partial - * on this repo and remember the given filter-spec as the default - * for subsequent fetches to this remote. + * 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 (!repository_format_partial_clone && filter_options.choice) { + if (filter_options.choice) { partial_clone_register(remote->name, &filter_options); return; } /* - * We are currently limited to only ONE promisor remote and only - * allow partial-fetches from the promisor remote. - */ - if (strcmp(remote->name, repository_format_partial_clone)) { - if (filter_options.choice) - die(_("--filter can only be used with the remote configured in core.partialClone")); - 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); + 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) +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; @@ -1535,26 +1755,32 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, int pru for (i = 0; i < argc; i++) { if (!strcmp(argv[i], "tag")) { - char *tag; i++; if (i >= argc) die(_("You need to specify a tag name.")); - tag = xstrfmt("refs/tags/%s:refs/tags/%s", - argv[i], argv[i]); - refspec_append(&rs, tag); - free(tag); + 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; @@ -1568,22 +1794,31 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) struct remote *remote = NULL; int result = 0; int prune_tags_ok = 1; - struct argv_array argv_gc_auto = ARGV_ARRAY_INIT; packet_trace_identity("fetch"); - fetch_if_missing = 0; - /* Record the command line for the reflog */ strbuf_addstr(&default_rla, "fetch"); - for (i = 1; i < argc; i++) - strbuf_addf(&default_rla, " %s", argv[i]); + 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); + } - fetch_config_from_gitmodules(&max_children, &recurse_submodules); 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) @@ -1607,8 +1842,9 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) if (depth || deepen_since || deepen_not.nr) deepen = 1; - if (filter_options.choice && !repository_format_partial_clone) - die("--filter can only be used when extensions.partialClone is set"); + /* FETCH_HEAD never gets updated in --dry-run mode */ + if (dry_run) + write_fetch_head = 0; if (all) { if (argc == 1) @@ -1641,18 +1877,35 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) } if (remote) { - if (filter_options.choice || repository_format_partial_clone) + if (filter_options.choice || has_promisor_remote()) fetch_one_setup_partial(remote); - result = fetch_one(remote, argc, argv, prune_tags_ok); + 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 core.partialClone")); + 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); + result = fetch_multiple(&list, max_children); } if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) { - struct argv_array options = ARGV_ARRAY_INIT; + 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, @@ -1662,18 +1915,29 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) recurse_submodules_default, verbosity < 0, max_children); - argv_array_clear(&options); + strvec_clear(&options); } string_list_clear(&list, 0); - close_all_packs(the_repository->objects); + 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); - argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL); - if (verbosity < 0) - argv_array_push(&argv_gc_auto, "--quiet"); - run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD); - argv_array_clear(&argv_gc_auto); + if (enable_auto_gc) + run_auto_maintenance(verbosity < 0); return result; } |