Code

Move 'builtin-*' into a 'builtin/' subdirectory
[git.git] / builtin-fetch.c
diff --git a/builtin-fetch.c b/builtin-fetch.c
deleted file mode 100644 (file)
index 8654fa7..0000000
+++ /dev/null
@@ -1,920 +0,0 @@
-/*
- * "git fetch"
- */
-#include "cache.h"
-#include "refs.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"
-
-static const char * const builtin_fetch_usage[] = {
-       "git fetch [options] [<repository> <refspec>...]",
-       "git fetch [options] <group>",
-       "git fetch --multiple [options] [<repository> | <group>]...",
-       "git fetch --all [options]",
-       NULL
-};
-
-enum {
-       TAGS_UNSET = 0,
-       TAGS_DEFAULT = 1,
-       TAGS_SET = 2
-};
-
-static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity;
-static int tags = TAGS_DEFAULT;
-static const char *depth;
-static const char *upload_pack;
-static struct strbuf default_rla = STRBUF_INIT;
-static struct transport *transport;
-
-static struct option builtin_fetch_options[] = {
-       OPT__VERBOSITY(&verbosity),
-       OPT_BOOLEAN(0, "all", &all,
-                   "fetch from all remotes"),
-       OPT_BOOLEAN('a', "append", &append,
-                   "append to .git/FETCH_HEAD instead of overwriting"),
-       OPT_STRING(0, "upload-pack", &upload_pack, "PATH",
-                  "path to upload pack on remote end"),
-       OPT_BOOLEAN('f', "force", &force,
-                   "force overwrite of local branch"),
-       OPT_BOOLEAN('m', "multiple", &multiple,
-                   "fetch from multiple remotes"),
-       OPT_SET_INT('t', "tags", &tags,
-                   "fetch all tags and associated objects", TAGS_SET),
-       OPT_SET_INT('n', NULL, &tags,
-                   "do not fetch all tags (--no-tags)", TAGS_UNSET),
-       OPT_BOOLEAN('p', "prune", &prune,
-                   "prune tracking branches no longer on remote"),
-       OPT_BOOLEAN(0, "dry-run", &dry_run,
-                   "dry run"),
-       OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"),
-       OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
-                   "allow updating of HEAD ref"),
-       OPT_STRING(0, "depth", &depth, "DEPTH",
-                  "deepen history of shallow clone"),
-       OPT_END()
-};
-
-static void unlock_pack(void)
-{
-       if (transport)
-               transport_unlock_pack(transport);
-}
-
-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 refspec;
-
-               for (rm = *head; rm; rm = rm->next) {
-                       if (branch_merge_matches(branch, i, rm->name)) {
-                               rm->merge = 1;
-                               break;
-                       }
-               }
-               if (rm)
-                       continue;
-
-               /*
-                * Not fetched to a 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.
-                */
-               refspec.src = branch->merge[i]->src;
-               refspec.dst = NULL;
-               refspec.pattern = 0;
-               refspec.force = 0;
-               get_fetch_map(remote_refs, &refspec, tail, 1);
-               for (rm = *old_tail; rm; rm = rm->next)
-                       rm->merge = 1;
-       }
-}
-
-static void find_non_local_tags(struct transport *transport,
-                       struct ref **head,
-                       struct ref ***tail);
-
-static struct ref *get_ref_map(struct transport *transport,
-                              struct refspec *refs, int ref_count, int tags,
-                              int *autotags)
-{
-       int i;
-       struct ref *rm;
-       struct ref *ref_map = NULL;
-       struct ref **tail = &ref_map;
-
-       const struct ref *remote_refs = transport_get_remote_refs(transport);
-
-       if (ref_count || tags == TAGS_SET) {
-               for (i = 0; i < ref_count; i++) {
-                       get_fetch_map(remote_refs, &refs[i], &tail, 0);
-                       if (refs[i].dst && refs[i].dst[0])
-                               *autotags = 1;
-               }
-               /* Merge everything on the command line, but not --tags */
-               for (rm = ref_map; rm; rm = rm->next)
-                       rm->merge = 1;
-               if (tags == TAGS_SET)
-                       get_fetch_map(remote_refs, tag_refspec, &tail, 0);
-       } else {
-               /* Use the defaults */
-               struct remote *remote = transport->remote;
-               struct branch *branch = branch_get(NULL);
-               int has_merge = branch_has_merge_config(branch);
-               if (remote && (remote->fetch_refspec_nr || has_merge)) {
-                       for (i = 0; i < remote->fetch_refspec_nr; i++) {
-                               get_fetch_map(remote_refs, &remote->fetch[i], &tail, 0);
-                               if (remote->fetch[i].dst &&
-                                   remote->fetch[i].dst[0])
-                                       *autotags = 1;
-                               if (!i && !has_merge && ref_map &&
-                                   !remote->fetch[0].pattern)
-                                       ref_map->merge = 1;
-                       }
-                       /*
-                        * 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.
-                        */
-                       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->merge = 1;
-                       tail = &ref_map->next;
-               }
-       }
-       if (tags == TAGS_DEFAULT && *autotags)
-               find_non_local_tags(transport, &ref_map, &tail);
-       ref_remove_duplicates(ref_map);
-
-       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[1024];
-       char *rla = getenv("GIT_REFLOG_ACTION");
-       static struct ref_lock *lock;
-
-       if (dry_run)
-               return 0;
-       if (!rla)
-               rla = default_rla.buf;
-       snprintf(msg, sizeof(msg), "%s: %s", rla, action);
-       lock = lock_any_ref_for_update(ref->name,
-                                      check_old ? ref->old_sha1 : NULL, 0);
-       if (!lock)
-               return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
-                                         STORE_REF_ERROR_OTHER;
-       if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
-               return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
-                                         STORE_REF_ERROR_OTHER;
-       return 0;
-}
-
-#define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
-#define REFCOL_WIDTH  10
-
-static int update_local_ref(struct ref *ref,
-                           const char *remote,
-                           char *display)
-{
-       struct commit *current = NULL, *updated;
-       enum object_type type;
-       struct branch *current_branch = branch_get(NULL);
-       const char *pretty_ref = prettify_refname(ref->name);
-
-       *display = 0;
-       type = sha1_object_info(ref->new_sha1, NULL);
-       if (type < 0)
-               die("object %s not found", sha1_to_hex(ref->new_sha1));
-
-       if (!hashcmp(ref->old_sha1, ref->new_sha1)) {
-               if (verbosity > 0)
-                       sprintf(display, "= %-*s %-*s -> %s", SUMMARY_WIDTH,
-                               "[up to date]", REFCOL_WIDTH, remote,
-                               pretty_ref);
-               return 0;
-       }
-
-       if (current_branch &&
-           !strcmp(ref->name, current_branch->name) &&
-           !(update_head_ok || is_bare_repository()) &&
-           !is_null_sha1(ref->old_sha1)) {
-               /*
-                * If this is the head, and it's not okay to update
-                * the head, and the old value of the head isn't empty...
-                */
-               sprintf(display, "! %-*s %-*s -> %s  (can't fetch in current branch)",
-                       SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
-                       pretty_ref);
-               return 1;
-       }
-
-       if (!is_null_sha1(ref->old_sha1) &&
-           !prefixcmp(ref->name, "refs/tags/")) {
-               int r;
-               r = s_update_ref("updating tag", ref, 0);
-               sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '-',
-                       SUMMARY_WIDTH, "[tag update]", REFCOL_WIDTH, remote,
-                       pretty_ref, r ? "  (unable to update local ref)" : "");
-               return r;
-       }
-
-       current = lookup_commit_reference_gently(ref->old_sha1, 1);
-       updated = lookup_commit_reference_gently(ref->new_sha1, 1);
-       if (!current || !updated) {
-               const char *msg;
-               const char *what;
-               int r;
-               if (!strncmp(ref->name, "refs/tags/", 10)) {
-                       msg = "storing tag";
-                       what = "[new tag]";
-               }
-               else {
-                       msg = "storing head";
-                       what = "[new branch]";
-               }
-
-               r = s_update_ref(msg, ref, 0);
-               sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '*',
-                       SUMMARY_WIDTH, what, REFCOL_WIDTH, remote, pretty_ref,
-                       r ? "  (unable to update local ref)" : "");
-               return r;
-       }
-
-       if (in_merge_bases(current, &updated, 1)) {
-               char quickref[83];
-               int r;
-               strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
-               strcat(quickref, "..");
-               strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
-               r = s_update_ref("fast-forward", ref, 1);
-               sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : ' ',
-                       SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
-                       pretty_ref, r ? "  (unable to update local ref)" : "");
-               return r;
-       } else if (force || ref->force) {
-               char quickref[84];
-               int r;
-               strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
-               strcat(quickref, "...");
-               strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
-               r = s_update_ref("forced-update", ref, 1);
-               sprintf(display, "%c %-*s %-*s -> %s  (%s)", r ? '!' : '+',
-                       SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
-                       pretty_ref,
-                       r ? "unable to update local ref" : "forced update");
-               return r;
-       } else {
-               sprintf(display, "! %-*s %-*s -> %s  (non-fast-forward)",
-                       SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
-                       pretty_ref);
-               return 1;
-       }
-}
-
-static int store_updated_refs(const char *raw_url, const char *remote_name,
-               struct ref *ref_map)
-{
-       FILE *fp;
-       struct commit *commit;
-       int url_len, i, note_len, shown_url = 0, rc = 0;
-       char note[1024];
-       const char *what, *kind;
-       struct ref *rm;
-       char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
-
-       fp = fopen(filename, "a");
-       if (!fp)
-               return error("cannot open %s: %s\n", filename, strerror(errno));
-
-       if (raw_url)
-               url = transport_anonymize_url(raw_url);
-       else
-               url = xstrdup("foreign");
-       for (rm = ref_map; rm; rm = rm->next) {
-               struct ref *ref = NULL;
-
-               if (rm->peer_ref) {
-                       ref = xcalloc(1, sizeof(*ref) + strlen(rm->peer_ref->name) + 1);
-                       strcpy(ref->name, rm->peer_ref->name);
-                       hashcpy(ref->old_sha1, rm->peer_ref->old_sha1);
-                       hashcpy(ref->new_sha1, rm->old_sha1);
-                       ref->force = rm->peer_ref->force;
-               }
-
-               commit = lookup_commit_reference_gently(rm->old_sha1, 1);
-               if (!commit)
-                       rm->merge = 0;
-
-               if (!strcmp(rm->name, "HEAD")) {
-                       kind = "";
-                       what = "";
-               }
-               else if (!prefixcmp(rm->name, "refs/heads/")) {
-                       kind = "branch";
-                       what = rm->name + 11;
-               }
-               else if (!prefixcmp(rm->name, "refs/tags/")) {
-                       kind = "tag";
-                       what = rm->name + 10;
-               }
-               else if (!prefixcmp(rm->name, "refs/remotes/")) {
-                       kind = "remote branch";
-                       what = rm->name + 13;
-               }
-               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;
-
-               note_len = 0;
-               if (*what) {
-                       if (*kind)
-                               note_len += sprintf(note + note_len, "%s ",
-                                                   kind);
-                       note_len += sprintf(note + note_len, "'%s' of ", what);
-               }
-               note[note_len] = '\0';
-               fprintf(fp, "%s\t%s\t%s",
-                       sha1_to_hex(commit ? commit->object.sha1 :
-                                   rm->old_sha1),
-                       rm->merge ? "" : "not-for-merge",
-                       note);
-               for (i = 0; i < url_len; ++i)
-                       if ('\n' == url[i])
-                               fputs("\\n", fp);
-                       else
-                               fputc(url[i], fp);
-               fputc('\n', fp);
-
-               if (ref)
-                       rc |= update_local_ref(ref, what, note);
-               else
-                       sprintf(note, "* %-*s %-*s -> FETCH_HEAD",
-                               SUMMARY_WIDTH, *kind ? kind : "branch",
-                                REFCOL_WIDTH, *what ? what : "HEAD");
-               if (*note) {
-                       if (verbosity >= 0 && !shown_url) {
-                               fprintf(stderr, "From %.*s\n",
-                                               url_len, url);
-                               shown_url = 1;
-                       }
-                       if (verbosity >= 0)
-                               fprintf(stderr, " %s\n", note);
-               }
-       }
-       free(url);
-       fclose(fp);
-       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);
-       return rc;
-}
-
-/*
- * We would want to bypass the object transfer altogether if
- * everything we are going to fetch already exists and is connected
- * locally.
- *
- * The refs we are going to fetch are in ref_map.  If running
- *
- *  $ git rev-list --objects --stdin --not --all
- *
- * (feeding all the refs in ref_map on its standard input)
- * does not error out, that means everything reachable from the
- * refs we are going to fetch exists and is connected to some of
- * our existing refs.
- */
-static int quickfetch(struct ref *ref_map)
-{
-       struct child_process revlist;
-       struct ref *ref;
-       int err;
-       const char *argv[] = {"rev-list",
-               "--quiet", "--objects", "--stdin", "--not", "--all", NULL};
-
-       /*
-        * 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 (depth)
-               return -1;
-
-       if (!ref_map)
-               return 0;
-
-       memset(&revlist, 0, sizeof(revlist));
-       revlist.argv = argv;
-       revlist.git_cmd = 1;
-       revlist.no_stdout = 1;
-       revlist.no_stderr = 1;
-       revlist.in = -1;
-
-       err = start_command(&revlist);
-       if (err) {
-               error("could not run rev-list");
-               return err;
-       }
-
-       /*
-        * If rev-list --stdin encounters an unknown commit, it terminates,
-        * which will cause SIGPIPE in the write loop below.
-        */
-       sigchain_push(SIGPIPE, SIG_IGN);
-
-       for (ref = ref_map; ref; ref = ref->next) {
-               if (write_in_full(revlist.in, sha1_to_hex(ref->old_sha1), 40) < 0 ||
-                   write_str_in_full(revlist.in, "\n") < 0) {
-                       if (errno != EPIPE && errno != EINVAL)
-                               error("failed write to rev-list: %s", strerror(errno));
-                       err = -1;
-                       break;
-               }
-       }
-
-       if (close(revlist.in)) {
-               error("failed to close rev-list's stdin: %s", strerror(errno));
-               err = -1;
-       }
-
-       sigchain_pop(SIGPIPE);
-
-       return finish_command(&revlist) || err;
-}
-
-static int fetch_refs(struct transport *transport, struct ref *ref_map)
-{
-       int ret = quickfetch(ref_map);
-       if (ret)
-               ret = transport_fetch_refs(transport, ref_map);
-       if (!ret)
-               ret |= store_updated_refs(transport->url,
-                               transport->remote->name,
-                               ref_map);
-       transport_unlock_pack(transport);
-       return ret;
-}
-
-static int prune_refs(struct transport *transport, struct ref *ref_map)
-{
-       int result = 0;
-       struct ref *ref, *stale_refs = get_stale_heads(transport->remote, ref_map);
-       const char *dangling_msg = dry_run
-               ? "   (%s will become dangling)\n"
-               : "   (%s has become dangling)\n";
-
-       for (ref = stale_refs; ref; ref = ref->next) {
-               if (!dry_run)
-                       result |= delete_ref(ref->name, NULL, 0);
-               if (verbosity >= 0) {
-                       fprintf(stderr, " x %-*s %-*s -> %s\n",
-                               SUMMARY_WIDTH, "[deleted]",
-                               REFCOL_WIDTH, "(none)", prettify_refname(ref->name));
-                       warn_dangling_symref(stderr, dangling_msg, ref->name);
-               }
-       }
-       free_refs(stale_refs);
-       return result;
-}
-
-static int add_existing(const char *refname, const unsigned char *sha1,
-                       int flag, void *cbdata)
-{
-       struct string_list *list = (struct string_list *)cbdata;
-       struct string_list_item *item = string_list_insert(refname, list);
-       item->util = (void *)sha1;
-       return 0;
-}
-
-static int will_fetch(struct ref **head, const unsigned char *sha1)
-{
-       struct ref *rm = *head;
-       while (rm) {
-               if (!hashcmp(rm->old_sha1, sha1))
-                       return 1;
-               rm = rm->next;
-       }
-       return 0;
-}
-
-struct tag_data {
-       struct ref **head;
-       struct ref ***tail;
-};
-
-static int add_to_tail(struct string_list_item *item, void *cb_data)
-{
-       struct tag_data *data = (struct tag_data *)cb_data;
-       struct ref *rm = NULL;
-
-       /* We have already decided to ignore this item */
-       if (!item->util)
-               return 0;
-
-       rm = alloc_ref(item->string);
-       rm->peer_ref = alloc_ref(item->string);
-       hashcpy(rm->old_sha1, item->util);
-
-       **data->tail = rm;
-       *data->tail = &rm->next;
-
-       return 0;
-}
-
-static void find_non_local_tags(struct transport *transport,
-                       struct ref **head,
-                       struct ref ***tail)
-{
-       struct string_list existing_refs = { NULL, 0, 0, 0 };
-       struct string_list remote_refs = { NULL, 0, 0, 0 };
-       struct tag_data data = {head, tail};
-       const struct ref *ref;
-       struct string_list_item *item = NULL;
-
-       for_each_ref(add_existing, &existing_refs);
-       for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) {
-               if (prefixcmp(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 (!strcmp(ref->name + strlen(ref->name) - 3, "^{}")) {
-                       if (item && !has_sha1_file(ref->old_sha1) &&
-                           !will_fetch(head, ref->old_sha1) &&
-                           !has_sha1_file(item->util) &&
-                           !will_fetch(head, item->util))
-                               item->util = NULL;
-                       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_sha1_file(item->util) &&
-                   !will_fetch(head, item->util))
-                       item->util = NULL;
-
-               item = NULL;
-
-               /* skip duplicates and refs that we already have */
-               if (string_list_has_string(&remote_refs, ref->name) ||
-                   string_list_has_string(&existing_refs, ref->name))
-                       continue;
-
-               item = string_list_insert(ref->name, &remote_refs);
-               item->util = (void *)ref->old_sha1;
-       }
-       string_list_clear(&existing_refs, 0);
-
-       /*
-        * We may have a final lightweight tag that needs to be
-        * checked to see if it needs fetching.
-        */
-       if (item && !has_sha1_file(item->util) &&
-           !will_fetch(head, item->util))
-               item->util = NULL;
-
-       /*
-        * For all the tags in the remote_refs string list, call
-        * add_to_tail to add them to the list of refs to be fetched
-        */
-       for_each_string_list(add_to_tail, &remote_refs, &data);
-
-       string_list_clear(&remote_refs, 0);
-}
-
-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 do_fetch(struct transport *transport,
-                   struct refspec *refs, int ref_count)
-{
-       struct string_list existing_refs = { NULL, 0, 0, 0 };
-       struct string_list_item *peer_item = NULL;
-       struct ref *ref_map;
-       struct ref *rm;
-       int autotags = (transport->remote->fetch_tags == 1);
-
-       for_each_ref(add_existing, &existing_refs);
-
-       if (transport->remote->fetch_tags == 2 && tags != TAGS_UNSET)
-               tags = TAGS_SET;
-       if (transport->remote->fetch_tags == -1)
-               tags = TAGS_UNSET;
-
-       if (!transport->get_refs_list || !transport->fetch)
-               die("Don't know how to fetch from %s", transport->url);
-
-       /* if not appending, truncate FETCH_HEAD */
-       if (!append && !dry_run) {
-               char *filename = git_path("FETCH_HEAD");
-               FILE *fp = fopen(filename, "w");
-               if (!fp)
-                       return error("cannot open %s: %s\n", filename, strerror(errno));
-               fclose(fp);
-       }
-
-       ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags);
-       if (!update_head_ok)
-               check_not_current_branch(ref_map);
-
-       for (rm = ref_map; rm; rm = rm->next) {
-               if (rm->peer_ref) {
-                       peer_item = string_list_lookup(rm->peer_ref->name,
-                                                      &existing_refs);
-                       if (peer_item)
-                               hashcpy(rm->peer_ref->old_sha1,
-                                       peer_item->util);
-               }
-       }
-
-       if (tags == TAGS_DEFAULT && autotags)
-               transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
-       if (fetch_refs(transport, ref_map)) {
-               free_refs(ref_map);
-               return 1;
-       }
-       if (prune)
-               prune_refs(transport, ref_map);
-       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(transport, &ref_map, &tail);
-               if (ref_map) {
-                       transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
-                       transport_set_option(transport, TRANS_OPT_DEPTH, "0");
-                       fetch_refs(transport, ref_map);
-               }
-               free_refs(ref_map);
-       }
-
-       return 0;
-}
-
-static void set_option(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 get_one_remote_for_fetch(struct remote *remote, void *priv)
-{
-       struct string_list *list = priv;
-       if (!remote->skip_default_update)
-               string_list_append(remote->name, list);
-       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 (!prefixcmp(key, "remotes.") &&
-                       !strcmp(key + 8, g->name)) {
-               /* split list by white space */
-               int space = strcspn(value, " \t\n");
-               while (*value) {
-                       if (space > 1) {
-                               string_list_append(xstrndup(value, space),
-                                                  g->list);
-                       }
-                       value += space + (value[space] != '\0');
-                       space = strcspn(value, " \t\n");
-               }
-       }
-
-       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 = { name, list };
-
-       git_config(get_remote_group, &g);
-       if (list->nr == prev_nr) {
-               struct remote *remote;
-               if (!remote_is_configured(name))
-                       return 0;
-               remote = remote_get(name);
-               string_list_append(remote->name, list);
-       }
-       return 1;
-}
-
-static int fetch_multiple(struct string_list *list)
-{
-       int i, result = 0;
-       const char *argv[] = { "fetch", NULL, NULL, NULL, NULL, NULL, NULL };
-       int argc = 1;
-
-       if (dry_run)
-               argv[argc++] = "--dry-run";
-       if (prune)
-               argv[argc++] = "--prune";
-       if (verbosity >= 2)
-               argv[argc++] = "-v";
-       if (verbosity >= 1)
-               argv[argc++] = "-v";
-       else if (verbosity < 0)
-               argv[argc++] = "-q";
-
-       for (i = 0; i < list->nr; i++) {
-               const char *name = list->items[i].string;
-               argv[argc] = name;
-               if (verbosity >= 0)
-                       printf("Fetching %s\n", name);
-               if (run_command_v_opt(argv, RUN_GIT_CMD)) {
-                       error("Could not fetch %s", name);
-                       result = 1;
-               }
-       }
-
-       return result;
-}
-
-static int fetch_one(struct remote *remote, int argc, const char **argv)
-{
-       int i;
-       static const char **refs = NULL;
-       int ref_nr = 0;
-       int exit_code;
-
-       if (!remote)
-               die("Where do you want to fetch from today?");
-
-       transport = transport_get(remote, NULL);
-       if (verbosity >= 2)
-               transport->verbose = verbosity <= 3 ? verbosity : 3;
-       if (verbosity < 0)
-               transport->verbose = -1;
-       if (upload_pack)
-               set_option(TRANS_OPT_UPLOADPACK, upload_pack);
-       if (keep)
-               set_option(TRANS_OPT_KEEP, "yes");
-       if (depth)
-               set_option(TRANS_OPT_DEPTH, depth);
-
-       if (argc > 0) {
-               int j = 0;
-               refs = xcalloc(argc + 1, sizeof(const char *));
-               for (i = 0; i < argc; i++) {
-                       if (!strcmp(argv[i], "tag")) {
-                               char *ref;
-                               i++;
-                               if (i >= argc)
-                                       die("You need to specify a tag name.");
-                               ref = xmalloc(strlen(argv[i]) * 2 + 22);
-                               strcpy(ref, "refs/tags/");
-                               strcat(ref, argv[i]);
-                               strcat(ref, ":refs/tags/");
-                               strcat(ref, argv[i]);
-                               refs[j++] = ref;
-                       } else
-                               refs[j++] = argv[i];
-               }
-               refs[j] = NULL;
-               ref_nr = j;
-       }
-
-       sigchain_push_common(unlock_pack_on_signal);
-       atexit(unlock_pack);
-       exit_code = do_fetch(transport,
-                       parse_fetch_refspec(ref_nr, refs), ref_nr);
-       transport_disconnect(transport);
-       transport = NULL;
-       return exit_code;
-}
-
-int cmd_fetch(int argc, const char **argv, const char *prefix)
-{
-       int i;
-       struct string_list list = { NULL, 0, 0, 0 };
-       struct remote *remote;
-       int result = 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]);
-
-       argc = parse_options(argc, argv, prefix,
-                            builtin_fetch_options, builtin_fetch_usage, 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);
-               result = fetch_multiple(&list);
-       } else if (argc == 0) {
-               /* No arguments -- use default remote */
-               remote = remote_get(NULL);
-               result = fetch_one(remote, argc, argv);
-       } 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]);
-               result = fetch_multiple(&list);
-       } 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");
-                       result = fetch_multiple(&list);
-               } else {
-                       /* Zero or one remotes */
-                       remote = remote_get(argv[0]);
-                       result = fetch_one(remote, argc-1, argv+1);
-               }
-       }
-
-       /* All names were strdup()ed or strndup()ed */
-       list.strdup_strings = 1;
-       string_list_clear(&list, 0);
-
-       return result;
-}