OSDN Git Service

Git 2.11.2
[git-core/git.git] / transport.c
index 988047b..04e5d66 100644 (file)
 #include "sha1-array.h"
 #include "sigchain.h"
 
-/* rsync support */
-
-/*
- * We copy packed-refs and refs/ into a temporary file, then read the
- * loose refs recursively (sorting whenever possible), and then inserting
- * those packed refs that are not yet in the list (not validating, but
- * assuming that the file is sorted).
- *
- * Appears refactoring this from refs.c is too cumbersome.
- */
-
-static int str_cmp(const void *a, const void *b)
-{
-       const char *s1 = a;
-       const char *s2 = b;
-
-       return strcmp(s1, s2);
-}
-
-/* path->buf + name_offset is expected to point to "refs/" */
-
-static int read_loose_refs(struct strbuf *path, int name_offset,
-               struct ref **tail)
-{
-       DIR *dir = opendir(path->buf);
-       struct dirent *de;
-       struct {
-               char **entries;
-               int nr, alloc;
-       } list;
-       int i, pathlen;
-
-       if (!dir)
-               return -1;
-
-       memset (&list, 0, sizeof(list));
-
-       while ((de = readdir(dir))) {
-               if (is_dot_or_dotdot(de->d_name))
-                       continue;
-               ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
-               list.entries[list.nr++] = xstrdup(de->d_name);
-       }
-       closedir(dir);
-
-       /* sort the list */
-
-       qsort(list.entries, list.nr, sizeof(char *), str_cmp);
-
-       pathlen = path->len;
-       strbuf_addch(path, '/');
-
-       for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
-               strbuf_addstr(path, list.entries[i]);
-               if (read_loose_refs(path, name_offset, tail)) {
-                       int fd = open(path->buf, O_RDONLY);
-                       char buffer[40];
-                       struct ref *next;
-
-                       if (fd < 0)
-                               continue;
-                       next = alloc_ref(path->buf + name_offset);
-                       if (read_in_full(fd, buffer, 40) != 40 ||
-                                       get_oid_hex(buffer, &next->old_oid)) {
-                               close(fd);
-                               free(next);
-                               continue;
-                       }
-                       close(fd);
-                       (*tail)->next = next;
-                       *tail = next;
-               }
-       }
-       strbuf_setlen(path, pathlen);
-
-       for (i = 0; i < list.nr; i++)
-               free(list.entries[i]);
-       free(list.entries);
-
-       return 0;
-}
-
-/* insert the packed refs for which no loose refs were found */
-
-static void insert_packed_refs(const char *packed_refs, struct ref **list)
-{
-       FILE *f = fopen(packed_refs, "r");
-       static char buffer[PATH_MAX];
-
-       if (!f)
-               return;
-
-       for (;;) {
-               int cmp = 0; /* assigned before used */
-               int len;
-
-               if (!fgets(buffer, sizeof(buffer), f)) {
-                       fclose(f);
-                       return;
-               }
-
-               if (!isxdigit(buffer[0]))
-                       continue;
-               len = strlen(buffer);
-               if (len && buffer[len - 1] == '\n')
-                       buffer[--len] = '\0';
-               if (len < 41)
-                       continue;
-               while ((*list)->next &&
-                               (cmp = strcmp(buffer + 41,
-                                     (*list)->next->name)) > 0)
-                       list = &(*list)->next;
-               if (!(*list)->next || cmp < 0) {
-                       struct ref *next = alloc_ref(buffer + 41);
-                       buffer[40] = '\0';
-                       if (get_oid_hex(buffer, &next->old_oid)) {
-                               warning ("invalid SHA-1: %s", buffer);
-                               free(next);
-                               continue;
-                       }
-                       next->next = (*list)->next;
-                       (*list)->next = next;
-                       list = &(*list)->next;
-               }
-       }
-}
-
 static void set_upstreams(struct transport *transport, struct ref *refs,
        int pretend)
 {
@@ -186,211 +59,12 @@ static void set_upstreams(struct transport *transport, struct ref *refs,
                                localname + 11, transport->remote->name,
                                remotename);
                else
-                       printf("Would set upstream of '%s' to '%s' of '%s'\n",
+                       printf(_("Would set upstream of '%s' to '%s' of '%s'\n"),
                                localname + 11, remotename + 11,
                                transport->remote->name);
        }
 }
 
-static const char *rsync_url(const char *url)
-{
-       if (!starts_with(url, "rsync://"))
-               skip_prefix(url, "rsync:", &url);
-       return url;
-}
-
-static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
-{
-       struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
-       struct ref dummy = {NULL}, *tail = &dummy;
-       struct child_process rsync = CHILD_PROCESS_INIT;
-       const char *args[5];
-       int temp_dir_len;
-
-       if (for_push)
-               return NULL;
-
-       /* copy the refs to the temporary directory */
-
-       strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
-       if (!mkdtemp(temp_dir.buf))
-               die_errno ("Could not make temporary directory");
-       temp_dir_len = temp_dir.len;
-
-       strbuf_addstr(&buf, rsync_url(transport->url));
-       strbuf_addstr(&buf, "/refs");
-
-       rsync.argv = args;
-       rsync.stdout_to_stderr = 1;
-       args[0] = "rsync";
-       args[1] = (transport->verbose > 1) ? "-rv" : "-r";
-       args[2] = buf.buf;
-       args[3] = temp_dir.buf;
-       args[4] = NULL;
-
-       if (run_command(&rsync))
-               die ("Could not run rsync to get refs");
-
-       strbuf_reset(&buf);
-       strbuf_addstr(&buf, rsync_url(transport->url));
-       strbuf_addstr(&buf, "/packed-refs");
-
-       args[2] = buf.buf;
-
-       if (run_command(&rsync))
-               die ("Could not run rsync to get refs");
-
-       /* read the copied refs */
-
-       strbuf_addstr(&temp_dir, "/refs");
-       read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
-       strbuf_setlen(&temp_dir, temp_dir_len);
-
-       tail = &dummy;
-       strbuf_addstr(&temp_dir, "/packed-refs");
-       insert_packed_refs(temp_dir.buf, &tail);
-       strbuf_setlen(&temp_dir, temp_dir_len);
-
-       if (remove_dir_recursively(&temp_dir, 0))
-               warning ("Error removing temporary directory %s.",
-                               temp_dir.buf);
-
-       strbuf_release(&buf);
-       strbuf_release(&temp_dir);
-
-       return dummy.next;
-}
-
-static int fetch_objs_via_rsync(struct transport *transport,
-                               int nr_objs, struct ref **to_fetch)
-{
-       struct child_process rsync = CHILD_PROCESS_INIT;
-
-       rsync.stdout_to_stderr = 1;
-       argv_array_push(&rsync.args, "rsync");
-       argv_array_push(&rsync.args, (transport->verbose > 1) ? "-rv" : "-r");
-       argv_array_push(&rsync.args, "--ignore-existing");
-       argv_array_push(&rsync.args, "--exclude");
-       argv_array_push(&rsync.args, "info");
-       argv_array_pushf(&rsync.args, "%s/objects/", rsync_url(transport->url));
-       argv_array_push(&rsync.args, get_object_directory());
-
-       /* NEEDSWORK: handle one level of alternates */
-       return run_command(&rsync);
-}
-
-static int write_one_ref(const char *name, const struct object_id *oid,
-                        int flags, void *data)
-{
-       struct strbuf *buf = data;
-       int len = buf->len;
-
-       /* when called via for_each_ref(), flags is non-zero */
-       if (flags && !starts_with(name, "refs/heads/") &&
-                       !starts_with(name, "refs/tags/"))
-               return 0;
-
-       strbuf_addstr(buf, name);
-       if (safe_create_leading_directories(buf->buf) ||
-           write_file_gently(buf->buf, "%s", oid_to_hex(oid)))
-               return error("problems writing temporary file %s: %s",
-                            buf->buf, strerror(errno));
-       strbuf_setlen(buf, len);
-       return 0;
-}
-
-static int write_refs_to_temp_dir(struct strbuf *temp_dir,
-                                 int refspec_nr, const char **refspec)
-{
-       int i;
-
-       for (i = 0; i < refspec_nr; i++) {
-               struct object_id oid;
-               char *ref;
-
-               if (dwim_ref(refspec[i], strlen(refspec[i]), oid.hash, &ref) != 1)
-                       return error("Could not get ref %s", refspec[i]);
-
-               if (write_one_ref(ref, &oid, 0, temp_dir)) {
-                       free(ref);
-                       return -1;
-               }
-               free(ref);
-       }
-       return 0;
-}
-
-static int rsync_transport_push(struct transport *transport,
-               int refspec_nr, const char **refspec, int flags)
-{
-       struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
-       int result = 0, i;
-       struct child_process rsync = CHILD_PROCESS_INIT;
-       const char *args[10];
-
-       if (flags & TRANSPORT_PUSH_MIRROR)
-               return error("rsync transport does not support mirror mode");
-
-       /* first push the objects */
-
-       strbuf_addstr(&buf, rsync_url(transport->url));
-       strbuf_addch(&buf, '/');
-
-       rsync.argv = args;
-       rsync.stdout_to_stderr = 1;
-       i = 0;
-       args[i++] = "rsync";
-       args[i++] = "-a";
-       if (flags & TRANSPORT_PUSH_DRY_RUN)
-               args[i++] = "--dry-run";
-       if (transport->verbose > 1)
-               args[i++] = "-v";
-       args[i++] = "--ignore-existing";
-       args[i++] = "--exclude";
-       args[i++] = "info";
-       args[i++] = get_object_directory();
-       args[i++] = buf.buf;
-       args[i++] = NULL;
-
-       if (run_command(&rsync))
-               return error("Could not push objects to %s",
-                               rsync_url(transport->url));
-
-       /* copy the refs to the temporary directory; they could be packed. */
-
-       strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
-       if (!mkdtemp(temp_dir.buf))
-               die_errno ("Could not make temporary directory");
-       strbuf_addch(&temp_dir, '/');
-
-       if (flags & TRANSPORT_PUSH_ALL) {
-               if (for_each_ref(write_one_ref, &temp_dir))
-                       return -1;
-       } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
-               return -1;
-
-       i = 2;
-       if (flags & TRANSPORT_PUSH_DRY_RUN)
-               args[i++] = "--dry-run";
-       if (!(flags & TRANSPORT_PUSH_FORCE))
-               args[i++] = "--ignore-existing";
-       args[i++] = temp_dir.buf;
-       args[i++] = rsync_url(transport->url);
-       args[i++] = NULL;
-       if (run_command(&rsync))
-               result = error("Could not push to %s",
-                               rsync_url(transport->url));
-
-       if (remove_dir_recursively(&temp_dir, 0))
-               warning ("Could not remove temporary directory %s.",
-                               temp_dir.buf);
-
-       strbuf_release(&buf);
-       strbuf_release(&temp_dir);
-
-       return result;
-}
-
 struct bundle_transport_data {
        int fd;
        struct bundle_header header;
@@ -474,24 +148,40 @@ static int set_git_option(struct git_transport_options *opts,
                        char *end;
                        opts->depth = strtol(value, &end, 0);
                        if (*end)
-                               die("transport: invalid depth option '%s'", value);
+                               die(_("transport: invalid depth option '%s'"), value);
                }
                return 0;
+       } else if (!strcmp(name, TRANS_OPT_DEEPEN_SINCE)) {
+               opts->deepen_since = value;
+               return 0;
+       } else if (!strcmp(name, TRANS_OPT_DEEPEN_NOT)) {
+               opts->deepen_not = (const struct string_list *)value;
+               return 0;
+       } else if (!strcmp(name, TRANS_OPT_DEEPEN_RELATIVE)) {
+               opts->deepen_relative = !!value;
+               return 0;
        }
        return 1;
 }
 
-static int connect_setup(struct transport *transport, int for_push, int verbose)
+static int connect_setup(struct transport *transport, int for_push)
 {
        struct git_transport_data *data = transport->data;
+       int flags = transport->verbose > 0 ? CONNECT_VERBOSE : 0;
 
        if (data->conn)
                return 0;
 
+       switch (transport->family) {
+       case TRANSPORT_FAMILY_ALL: break;
+       case TRANSPORT_FAMILY_IPV4: flags |= CONNECT_IPV4; break;
+       case TRANSPORT_FAMILY_IPV6: flags |= CONNECT_IPV6; break;
+       }
+
        data->conn = git_connect(data->fd, transport->url,
                                 for_push ? data->options.receivepack :
                                 data->options.uploadpack,
-                                verbose ? CONNECT_VERBOSE : 0);
+                                flags);
 
        return 0;
 }
@@ -501,7 +191,7 @@ static struct ref *get_refs_via_connect(struct transport *transport, int for_pus
        struct git_transport_data *data = transport->data;
        struct ref *refs;
 
-       connect_setup(transport, for_push, 0);
+       connect_setup(transport, for_push);
        get_remote_heads(data->fd[0], NULL, 0, &refs,
                         for_push ? REF_NORMAL : 0,
                         &data->extra_have,
@@ -530,13 +220,16 @@ static int fetch_refs_via_pack(struct transport *transport,
        args.quiet = (transport->verbose < 0);
        args.no_progress = !transport->progress;
        args.depth = data->options.depth;
+       args.deepen_since = data->options.deepen_since;
+       args.deepen_not = data->options.deepen_not;
+       args.deepen_relative = data->options.deepen_relative;
        args.check_self_contained_and_connected =
                data->options.check_self_contained_and_connected;
        args.cloning = transport->cloning;
        args.update_shallow = data->options.update_shallow;
 
        if (!data->got_remote_heads) {
-               connect_setup(transport, 0, 0);
+               connect_setup(transport, 0);
                get_remote_heads(data->fd[0], NULL, 0, &refs_tmp, 0,
                                 NULL, &data->shallow);
                data->got_remote_heads = 1;
@@ -614,7 +307,9 @@ void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int v
        }
 }
 
-static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
+static void print_ref_status(char flag, const char *summary,
+                            struct ref *to, struct ref *from, const char *msg,
+                            int porcelain, int summary_width)
 {
        if (porcelain) {
                if (from)
@@ -626,7 +321,7 @@ static void print_ref_status(char flag, const char *summary, struct ref *to, str
                else
                        fprintf(stdout, "%s\n", summary);
        } else {
-               fprintf(stderr, " %c %-*s ", flag, TRANSPORT_SUMMARY_WIDTH, summary);
+               fprintf(stderr, " %c %-*s ", flag, summary_width, summary);
                if (from)
                        fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
                else
@@ -640,26 +335,23 @@ static void print_ref_status(char flag, const char *summary, struct ref *to, str
        }
 }
 
-static const char *status_abbrev(unsigned char sha1[20])
-{
-       return find_unique_abbrev(sha1, DEFAULT_ABBREV);
-}
-
-static void print_ok_ref_status(struct ref *ref, int porcelain)
+static void print_ok_ref_status(struct ref *ref, int porcelain, int summary_width)
 {
        if (ref->deletion)
-               print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
+               print_ref_status('-', "[deleted]", ref, NULL, NULL,
+                                porcelain, summary_width);
        else if (is_null_oid(&ref->old_oid))
                print_ref_status('*',
                        (starts_with(ref->name, "refs/tags/") ? "[new tag]" :
                        "[new branch]"),
-                       ref, ref->peer_ref, NULL, porcelain);
+                       ref, ref->peer_ref, NULL, porcelain, summary_width);
        else {
                struct strbuf quickref = STRBUF_INIT;
                char type;
                const char *msg;
 
-               strbuf_addstr(&quickref, status_abbrev(ref->old_oid.hash));
+               strbuf_add_unique_abbrev(&quickref, ref->old_oid.hash,
+                                        DEFAULT_ABBREV);
                if (ref->forced_update) {
                        strbuf_addstr(&quickref, "...");
                        type = '+';
@@ -669,76 +361,107 @@ static void print_ok_ref_status(struct ref *ref, int porcelain)
                        type = ' ';
                        msg = NULL;
                }
-               strbuf_addstr(&quickref, status_abbrev(ref->new_oid.hash));
+               strbuf_add_unique_abbrev(&quickref, ref->new_oid.hash,
+                                        DEFAULT_ABBREV);
 
-               print_ref_status(type, quickref.buf, ref, ref->peer_ref, msg, porcelain);
+               print_ref_status(type, quickref.buf, ref, ref->peer_ref, msg,
+                                porcelain, summary_width);
                strbuf_release(&quickref);
        }
 }
 
-static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
+static int print_one_push_status(struct ref *ref, const char *dest, int count,
+                                int porcelain, int summary_width)
 {
-       if (!count)
-               fprintf(porcelain ? stdout : stderr, "To %s\n", dest);
+       if (!count) {
+               char *url = transport_anonymize_url(dest);
+               fprintf(porcelain ? stdout : stderr, "To %s\n", url);
+               free(url);
+       }
 
        switch(ref->status) {
        case REF_STATUS_NONE:
-               print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
+               print_ref_status('X', "[no match]", ref, NULL, NULL,
+                                porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_NODELETE:
                print_ref_status('!', "[rejected]", ref, NULL,
-                                                "remote does not support deleting refs", porcelain);
+                                "remote does not support deleting refs",
+                                porcelain, summary_width);
                break;
        case REF_STATUS_UPTODATE:
                print_ref_status('=', "[up to date]", ref,
-                                                ref->peer_ref, NULL, porcelain);
+                                ref->peer_ref, NULL, porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_NONFASTFORWARD:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "non-fast-forward", porcelain);
+                                "non-fast-forward", porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_ALREADY_EXISTS:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "already exists", porcelain);
+                                "already exists", porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_FETCH_FIRST:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "fetch first", porcelain);
+                                "fetch first", porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_NEEDS_FORCE:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "needs force", porcelain);
+                                "needs force", porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_STALE:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "stale info", porcelain);
+                                "stale info", porcelain, summary_width);
                break;
        case REF_STATUS_REJECT_SHALLOW:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "new shallow roots not allowed", porcelain);
+                                "new shallow roots not allowed",
+                                porcelain, summary_width);
                break;
        case REF_STATUS_REMOTE_REJECT:
                print_ref_status('!', "[remote rejected]", ref,
-                                                ref->deletion ? NULL : ref->peer_ref,
-                                                ref->remote_status, porcelain);
+                                ref->deletion ? NULL : ref->peer_ref,
+                                ref->remote_status, porcelain, summary_width);
                break;
        case REF_STATUS_EXPECTING_REPORT:
                print_ref_status('!', "[remote failure]", ref,
-                                                ref->deletion ? NULL : ref->peer_ref,
-                                                "remote failed to report status", porcelain);
+                                ref->deletion ? NULL : ref->peer_ref,
+                                "remote failed to report status",
+                                porcelain, summary_width);
                break;
        case REF_STATUS_ATOMIC_PUSH_FAILED:
                print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                                "atomic push failed", porcelain);
+                                "atomic push failed", porcelain, summary_width);
                break;
        case REF_STATUS_OK:
-               print_ok_ref_status(ref, porcelain);
+               print_ok_ref_status(ref, porcelain, summary_width);
                break;
        }
 
        return 1;
 }
 
+static int measure_abbrev(const struct object_id *oid, int sofar)
+{
+       char hex[GIT_SHA1_HEXSZ + 1];
+       int w = find_unique_abbrev_r(hex, oid->hash, DEFAULT_ABBREV);
+
+       return (w < sofar) ? sofar : w;
+}
+
+int transport_summary_width(const struct ref *refs)
+{
+       int maxw = -1;
+
+       for (; refs; refs = refs->next) {
+               maxw = measure_abbrev(&refs->old_oid, maxw);
+               maxw = measure_abbrev(&refs->new_oid, maxw);
+       }
+       if (maxw < 0)
+               maxw = FALLBACK_DEFAULT_ABBREV;
+       return (2 * maxw + 3);
+}
+
 void transport_print_push_status(const char *dest, struct ref *refs,
                                  int verbose, int porcelain, unsigned int *reject_reasons)
 {
@@ -746,25 +469,29 @@ void transport_print_push_status(const char *dest, struct ref *refs,
        int n = 0;
        unsigned char head_sha1[20];
        char *head;
+       int summary_width = transport_summary_width(refs);
 
        head = resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
 
        if (verbose) {
                for (ref = refs; ref; ref = ref->next)
                        if (ref->status == REF_STATUS_UPTODATE)
-                               n += print_one_push_status(ref, dest, n, porcelain);
+                               n += print_one_push_status(ref, dest, n,
+                                                          porcelain, summary_width);
        }
 
        for (ref = refs; ref; ref = ref->next)
                if (ref->status == REF_STATUS_OK)
-                       n += print_one_push_status(ref, dest, n, porcelain);
+                       n += print_one_push_status(ref, dest, n,
+                                                  porcelain, summary_width);
 
        *reject_reasons = 0;
        for (ref = refs; ref; ref = ref->next) {
                if (ref->status != REF_STATUS_NONE &&
                    ref->status != REF_STATUS_UPTODATE &&
                    ref->status != REF_STATUS_OK)
-                       n += print_one_push_status(ref, dest, n, porcelain);
+                       n += print_one_push_status(ref, dest, n,
+                                                  porcelain, summary_width);
                if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD) {
                        if (head != NULL && !strcmp(head, ref->name))
                                *reject_reasons |= REJECT_NON_FF_HEAD;
@@ -812,7 +539,7 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re
 
        if (!data->got_remote_heads) {
                struct ref *tmp_refs;
-               connect_setup(transport, 1, 0);
+               connect_setup(transport, 1);
 
                get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL,
                                 NULL, &data->shallow);
@@ -829,6 +556,7 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re
        args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
        args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
        args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC);
+       args.push_options = transport->push_options;
        args.url = transport->url;
 
        if (flags & TRANSPORT_PUSH_CERT_ALWAYS)
@@ -882,7 +610,7 @@ void transport_take_over(struct transport *transport,
        struct git_transport_data *data;
 
        if (!transport->smart_options)
-               die("Bug detected: Taking over transport requires non-NULL "
+               die("BUG: taking over transport requires non-NULL "
                    "smart_options field.");
 
        data = xcalloc(1, sizeof(*data));
@@ -984,11 +712,7 @@ struct transport *transport_get(struct remote *remote, const char *url)
        if (helper) {
                transport_helper_init(ret, helper);
        } else if (starts_with(url, "rsync:")) {
-               transport_check_allowed("rsync");
-               ret->get_refs_list = get_refs_via_rsync;
-               ret->fetch = fetch_objs_via_rsync;
-               ret->push = rsync_transport_push;
-               ret->smart_options = NULL;
+               die("git-over-rsync is no longer supported");
        } else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
                struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
                transport_check_allowed("file");
@@ -1001,8 +725,9 @@ struct transport *transport_get(struct remote *remote, const char *url)
                || starts_with(url, "file://")
                || starts_with(url, "git://")
                || starts_with(url, "ssh://")
-               || starts_with(url, "git+ssh://")
-               || starts_with(url, "ssh+git://")) {
+               || starts_with(url, "git+ssh://") /* deprecated - do not use */
+               || starts_with(url, "ssh+git://") /* deprecated - do not use */
+               ) {
                /*
                 * These are builtin smart transports; "allowed" transports
                 * will be checked individually in git_connect.
@@ -1089,19 +814,19 @@ static void die_with_unpushed_submodules(struct string_list *needs_pushing)
 {
        int i;
 
-       fprintf(stderr, "The following submodule paths contain changes that can\n"
-                       "not be found on any remote:\n");
+       fprintf(stderr, _("The following submodule paths contain changes that can\n"
+                       "not be found on any remote:\n"));
        for (i = 0; i < needs_pushing->nr; i++)
-               printf("  %s\n", needs_pushing->items[i].string);
-       fprintf(stderr, "\nPlease try\n\n"
-                       "       git push --recurse-submodules=on-demand\n\n"
-                       "or cd to the path and use\n\n"
-                       "       git push\n\n"
-                       "to push them to a remote.\n\n");
+               fprintf(stderr, "  %s\n", needs_pushing->items[i].string);
+       fprintf(stderr, _("\nPlease try\n\n"
+                         "     git push --recurse-submodules=on-demand\n\n"
+                         "or cd to the path and use\n\n"
+                         "     git push\n\n"
+                         "to push them to a remote.\n\n"));
 
        string_list_clear(needs_pushing, 0);
 
-       die("Aborting.");
+       die(_("Aborting."));
 }
 
 static int run_pre_push_hook(struct transport *transport,
@@ -1224,23 +949,39 @@ int transport_push(struct transport *transport,
 
                if ((flags & TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND) && !is_bare_repository()) {
                        struct ref *ref = remote_refs;
+                       struct sha1_array commits = SHA1_ARRAY_INIT;
+
                        for (; ref; ref = ref->next)
-                               if (!is_null_oid(&ref->new_oid) &&
-                                   !push_unpushed_submodules(ref->new_oid.hash,
-                                           transport->remote->name))
-                                   die ("Failed to push all needed submodules!");
+                               if (!is_null_oid(&ref->new_oid))
+                                       sha1_array_append(&commits, ref->new_oid.hash);
+
+                       if (!push_unpushed_submodules(&commits,
+                                                     transport->remote->name,
+                                                     pretend)) {
+                               sha1_array_clear(&commits);
+                               die("Failed to push all needed submodules!");
+                       }
+                       sha1_array_clear(&commits);
                }
 
-               if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
-                             TRANSPORT_RECURSE_SUBMODULES_CHECK)) && !is_bare_repository()) {
+               if (((flags & TRANSPORT_RECURSE_SUBMODULES_CHECK) ||
+                    ((flags & TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND) &&
+                     !pretend)) && !is_bare_repository()) {
                        struct ref *ref = remote_refs;
                        struct string_list needs_pushing = STRING_LIST_INIT_DUP;
+                       struct sha1_array commits = SHA1_ARRAY_INIT;
 
                        for (; ref; ref = ref->next)
-                               if (!is_null_oid(&ref->new_oid) &&
-                                   find_unpushed_submodules(ref->new_oid.hash,
-                                           transport->remote->name, &needs_pushing))
-                                       die_with_unpushed_submodules(&needs_pushing);
+                               if (!is_null_oid(&ref->new_oid))
+                                       sha1_array_append(&commits, ref->new_oid.hash);
+
+                       if (find_unpushed_submodules(&commits, transport->remote->name,
+                                               &needs_pushing)) {
+                               sha1_array_clear(&commits);
+                               die_with_unpushed_submodules(&needs_pushing);
+                       }
+                       string_list_clear(&needs_pushing, 0);
+                       sha1_array_clear(&commits);
                }
 
                push_ret = transport->push_refs(transport, remote_refs, flags);
@@ -1405,9 +1146,7 @@ static int refs_from_alternate_cb(struct alternate_object_database *e,
        const struct ref *extra;
        struct alternate_refs_data *cb = data;
 
-       e->name[-1] = '\0';
-       other = xstrdup(real_path(e->base));
-       e->name[-1] = '/';
+       other = xstrdup(real_path(e->path));
        len = strlen(other);
 
        while (other[len-1] == '/')