]> git.ipfire.org Git - thirdparty/git.git/blobdiff - fetch-pack.c
t4034: abstract away SHA-1-specific constants
[thirdparty/git.git] / fetch-pack.c
index 1c10f54e788ca53b548a226a66dd1eec96a8cb22..6ccc6294ea7b7fe2da9d2306acdcf40031a4383f 100644 (file)
@@ -36,7 +36,6 @@ static int agent_supported;
 static int server_supports_filtering;
 static struct lock_file shallow_lock;
 static const char *alternate_shallow_file;
-static char *negotiation_algorithm;
 static struct strbuf fsck_msg_types = STRBUF_INIT;
 
 /* Remember to update object flag allocation in object.h */
@@ -286,7 +285,7 @@ static int find_common(struct fetch_negotiator *negotiator,
                 * we cannot trust the object flags).
                 */
                if (!args->no_dependents &&
-                   ((o = lookup_object(the_repository, remote->hash)) != NULL) &&
+                   ((o = lookup_object(the_repository, remote)) != NULL) &&
                                (o->flags & COMPLETE)) {
                        continue;
                }
@@ -339,12 +338,9 @@ static int find_common(struct fetch_negotiator *negotiator,
                }
        }
        if (server_supports_filtering && args->filter_options.choice) {
-               struct strbuf expanded_filter_spec = STRBUF_INIT;
-               expand_list_objects_filter_spec(&args->filter_options,
-                                               &expanded_filter_spec);
-               packet_buf_write(&req_buf, "filter %s",
-                                expanded_filter_spec.buf);
-               strbuf_release(&expanded_filter_spec);
+               const char *spec =
+                       expand_list_objects_filter_spec(&args->filter_options);
+               packet_buf_write(&req_buf, "filter %s", spec);
        }
        packet_buf_flush(&req_buf);
        state_len = req_buf.len;
@@ -364,7 +360,7 @@ static int find_common(struct fetch_negotiator *negotiator,
                        if (skip_prefix(reader.line, "unshallow ", &arg)) {
                                if (get_oid_hex(arg, &oid))
                                        die(_("invalid unshallow line: %s"), reader.line);
-                               if (!lookup_object(the_repository, oid.hash))
+                               if (!lookup_object(the_repository, &oid))
                                        die(_("object not found: %s"), reader.line);
                                /* make sure that it is parsed as shallow */
                                if (!parse_object(the_repository, &oid))
@@ -707,7 +703,7 @@ static void mark_complete_and_common_ref(struct fetch_negotiator *negotiator,
        for (ref = *refs; ref; ref = ref->next) {
                struct object *o = deref_tag(the_repository,
                                             lookup_object(the_repository,
-                                            ref->old_oid.hash),
+                                            &ref->old_oid),
                                             NULL, 0);
 
                if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
@@ -734,7 +730,7 @@ static int everything_local(struct fetch_pack_args *args,
                const struct object_id *remote = &ref->old_oid;
                struct object *o;
 
-               o = lookup_object(the_repository, remote->hash);
+               o = lookup_object(the_repository, remote);
                if (!o || !(o->flags & COMPLETE)) {
                        retval = 0;
                        print_verbose(args, "want %s (%s)", oid_to_hex(remote),
@@ -892,82 +888,96 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
                                 struct shallow_info *si,
                                 char **pack_lockfile)
 {
+       struct repository *r = the_repository;
        struct ref *ref = copy_ref_list(orig_ref);
        struct object_id oid;
        const char *agent_feature;
        int agent_len;
        struct fetch_negotiator negotiator;
-       fetch_negotiator_init(&negotiator, negotiation_algorithm);
+       fetch_negotiator_init(r, &negotiator);
 
        sort_ref_list(&ref, ref_compare_name);
        QSORT(sought, nr_sought, cmp_ref_by_name);
 
-       if ((args->depth > 0 || is_repository_shallow(the_repository)) && !server_supports("shallow"))
+       if ((agent_feature = server_feature_value("agent", &agent_len))) {
+               agent_supported = 1;
+               if (agent_len)
+                       print_verbose(args, _("Server version is %.*s"),
+                                     agent_len, agent_feature);
+       }
+
+       if (server_supports("shallow"))
+               print_verbose(args, _("Server supports %s"), "shallow");
+       else if (args->depth > 0 || is_repository_shallow(r))
                die(_("Server does not support shallow clients"));
        if (args->depth > 0 || args->deepen_since || args->deepen_not)
                args->deepen = 1;
        if (server_supports("multi_ack_detailed")) {
-               print_verbose(args, _("Server supports multi_ack_detailed"));
+               print_verbose(args, _("Server supports %s"), "multi_ack_detailed");
                multi_ack = 2;
                if (server_supports("no-done")) {
-                       print_verbose(args, _("Server supports no-done"));
+                       print_verbose(args, _("Server supports %s"), "no-done");
                        if (args->stateless_rpc)
                                no_done = 1;
                }
        }
        else if (server_supports("multi_ack")) {
-               print_verbose(args, _("Server supports multi_ack"));
+               print_verbose(args, _("Server supports %s"), "multi_ack");
                multi_ack = 1;
        }
        if (server_supports("side-band-64k")) {
-               print_verbose(args, _("Server supports side-band-64k"));
+               print_verbose(args, _("Server supports %s"), "side-band-64k");
                use_sideband = 2;
        }
        else if (server_supports("side-band")) {
-               print_verbose(args, _("Server supports side-band"));
+               print_verbose(args, _("Server supports %s"), "side-band");
                use_sideband = 1;
        }
        if (server_supports("allow-tip-sha1-in-want")) {
-               print_verbose(args, _("Server supports allow-tip-sha1-in-want"));
+               print_verbose(args, _("Server supports %s"), "allow-tip-sha1-in-want");
                allow_unadvertised_object_request |= ALLOW_TIP_SHA1;
        }
        if (server_supports("allow-reachable-sha1-in-want")) {
-               print_verbose(args, _("Server supports allow-reachable-sha1-in-want"));
+               print_verbose(args, _("Server supports %s"), "allow-reachable-sha1-in-want");
                allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1;
        }
-       if (!server_supports("thin-pack"))
+       if (server_supports("thin-pack"))
+               print_verbose(args, _("Server supports %s"), "thin-pack");
+       else
                args->use_thin_pack = 0;
-       if (!server_supports("no-progress"))
+       if (server_supports("no-progress"))
+               print_verbose(args, _("Server supports %s"), "no-progress");
+       else
                args->no_progress = 0;
-       if (!server_supports("include-tag"))
+       if (server_supports("include-tag"))
+               print_verbose(args, _("Server supports %s"), "include-tag");
+       else
                args->include_tag = 0;
        if (server_supports("ofs-delta"))
-               print_verbose(args, _("Server supports ofs-delta"));
+               print_verbose(args, _("Server supports %s"), "ofs-delta");
        else
                prefer_ofs_delta = 0;
 
        if (server_supports("filter")) {
                server_supports_filtering = 1;
-               print_verbose(args, _("Server supports filter"));
+               print_verbose(args, _("Server supports %s"), "filter");
        } else if (args->filter_options.choice) {
                warning("filtering not recognized by server, ignoring");
        }
 
-       if ((agent_feature = server_feature_value("agent", &agent_len))) {
-               agent_supported = 1;
-               if (agent_len)
-                       print_verbose(args, _("Server version is %.*s"),
-                                     agent_len, agent_feature);
-       }
-       if (server_supports("deepen-since"))
+       if (server_supports("deepen-since")) {
+               print_verbose(args, _("Server supports %s"), "deepen-since");
                deepen_since_ok = 1;
-       else if (args->deepen_since)
+       else if (args->deepen_since)
                die(_("Server does not support --shallow-since"));
-       if (server_supports("deepen-not"))
+       if (server_supports("deepen-not")) {
+               print_verbose(args, _("Server supports %s"), "deepen-not");
                deepen_not_ok = 1;
-       else if (args->deepen_not)
+       else if (args->deepen_not)
                die(_("Server does not support --shallow-exclude"));
-       if (!server_supports("deepen-relative") && args->deepen_relative)
+       if (server_supports("deepen-relative"))
+               print_verbose(args, _("Server supports %s"), "deepen-relative");
+       else if (args->deepen_relative)
                die(_("Server does not support --deepen"));
 
        if (!args->no_dependents) {
@@ -1048,7 +1058,7 @@ static void add_wants(int no_dependents, const struct ref *wants, struct strbuf
                 * we cannot trust the object flags).
                 */
                if (!no_dependents &&
-                   ((o = lookup_object(the_repository, remote->hash)) != NULL) &&
+                   ((o = lookup_object(the_repository, remote)) != NULL) &&
                    (o->flags & COMPLETE)) {
                        continue;
                }
@@ -1099,7 +1109,7 @@ static int add_haves(struct fetch_negotiator *negotiator,
 }
 
 static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
-                             const struct fetch_pack_args *args,
+                             struct fetch_pack_args *args,
                              const struct ref *wants, struct oidset *common,
                              int *haves_to_send, int *in_vain,
                              int sideband_all)
@@ -1140,13 +1150,10 @@ static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
        /* Add filter */
        if (server_supports_feature("fetch", "filter", 0) &&
            args->filter_options.choice) {
-               struct strbuf expanded_filter_spec = STRBUF_INIT;
+               const char *spec =
+                       expand_list_objects_filter_spec(&args->filter_options);
                print_verbose(args, _("Server supports filter"));
-               expand_list_objects_filter_spec(&args->filter_options,
-                                               &expanded_filter_spec);
-               packet_buf_write(&req_buf, "filter %s",
-                                expanded_filter_spec.buf);
-               strbuf_release(&expanded_filter_spec);
+               packet_buf_write(&req_buf, "filter %s", spec);
        } else if (args->filter_options.choice) {
                warning("filtering not recognized by server, ignoring");
        }
@@ -1275,7 +1282,7 @@ static void receive_shallow_info(struct fetch_pack_args *args,
                if (skip_prefix(reader->line, "unshallow ", &arg)) {
                        if (get_oid_hex(arg, &oid))
                                die(_("invalid unshallow line: %s"), reader->line);
-                       if (!lookup_object(the_repository, oid.hash))
+                       if (!lookup_object(the_repository, &oid))
                                die(_("object not found: %s"), reader->line);
                        /* make sure that it is parsed as shallow */
                        if (!parse_object(the_repository, &oid))
@@ -1366,6 +1373,7 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
                                    struct shallow_info *si,
                                    char **pack_lockfile)
 {
+       struct repository *r = the_repository;
        struct ref *ref = copy_ref_list(orig_ref);
        enum fetch_state state = FETCH_CHECK_LOCAL;
        struct oidset common = OIDSET_INIT;
@@ -1373,7 +1381,7 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
        int in_vain = 0;
        int haves_to_send = INITIAL_FLUSH;
        struct fetch_negotiator negotiator;
-       fetch_negotiator_init(&negotiator, negotiation_algorithm);
+       fetch_negotiator_init(r, &negotiator);
        packet_reader_init(&reader, fd[0], NULL, 0,
                           PACKET_READ_CHOMP_NEWLINE |
                           PACKET_READ_DIE_ON_ERR_PACKET);
@@ -1492,8 +1500,6 @@ static void fetch_pack_config(void)
        git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta);
        git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects);
        git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects);
-       git_config_get_string("fetch.negotiationalgorithm",
-                             &negotiation_algorithm);
 
        git_config(fetch_pack_config_cb, NULL);
 }