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-rw-r--r--upload-pack.c656
1 files changed, 495 insertions, 161 deletions
diff --git a/upload-pack.c b/upload-pack.c
index 4a82602be5..936acabbdd 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -3,10 +3,10 @@
#include "refs.h"
#include "pkt-line.h"
#include "sideband.h"
+#include "object-store.h"
#include "tag.h"
#include "object.h"
#include "commit.h"
-#include "exec_cmd.h"
#include "diff.h"
#include "revision.h"
#include "list-objects.h"
@@ -17,16 +17,12 @@
#include "sigchain.h"
#include "version.h"
#include "string-list.h"
-#include "parse-options.h"
#include "argv-array.h"
#include "prio-queue.h"
#include "protocol.h"
#include "quote.h"
-
-static const char * const upload_pack_usage[] = {
- N_("git upload-pack [<options>] <dir>"),
- NULL
-};
+#include "upload-pack.h"
+#include "serve.h"
/* Remember to update object flag allocation in object.h */
#define THEY_HAVE (1u << 11)
@@ -64,7 +60,6 @@ static int keepalive = 5;
* otherwise maximum packet size (up to 65520 bytes).
*/
static int use_sideband;
-static int advertise_refs;
static int stateless_rpc;
static const char *pack_objects_hook;
@@ -450,7 +445,7 @@ static int get_common_commits(void)
break;
default:
got_common = 1;
- memcpy(last_hex, oid_to_hex(&oid), 41);
+ oid_to_hex_r(last_hex, &oid);
if (multi_ack == 2)
packet_write_fmt(1, "ACK %s common\n", last_hex);
else if (multi_ack)
@@ -492,7 +487,7 @@ static int do_reachable_revlist(struct child_process *cmd,
"rev-list", "--stdin", NULL,
};
struct object *o;
- char namebuf[42]; /* ^ + SHA-1 + LF */
+ char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */
int i;
cmd->argv = argv;
@@ -561,15 +556,17 @@ static int get_reachable_list(struct object_array *src,
struct child_process cmd = CHILD_PROCESS_INIT;
int i;
struct object *o;
- char namebuf[42]; /* ^ + SHA-1 + LF */
+ char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */
+ const unsigned hexsz = the_hash_algo->hexsz;
if (do_reachable_revlist(&cmd, src, reachable) < 0)
return -1;
- while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) {
+ while ((i = read_in_full(cmd.out, namebuf, hexsz + 1)) == hexsz + 1) {
struct object_id sha1;
+ const char *p;
- if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
+ if (parse_oid_hex(namebuf, &sha1, &p) || *p != '\n')
break;
o = lookup_object(sha1.hash);
@@ -662,7 +659,7 @@ static void send_shallow(struct commit_list *result)
if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
packet_write_fmt(1, "shallow %s",
oid_to_hex(&object->oid));
- register_shallow(&object->oid);
+ register_shallow(the_repository, &object->oid);
shallow_nr++;
}
result = result->next;
@@ -699,14 +696,14 @@ static void send_unshallow(const struct object_array *shallows)
add_object_array(object, NULL, &extra_edge_obj);
}
/* make sure commit traversal conforms to client */
- register_shallow(&object->oid);
+ register_shallow(the_repository, &object->oid);
}
}
static void deepen(int depth, int deepen_relative,
struct object_array *shallows)
{
- if (depth == INFINITE_DEPTH && !is_repository_shallow()) {
+ if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) {
int i;
for (i = 0; i < shallows->nr; i++) {
@@ -734,7 +731,6 @@ static void deepen(int depth, int deepen_relative,
}
send_unshallow(shallows);
- packet_flush(1);
}
static void deepen_by_rev_list(int ac, const char **av,
@@ -746,7 +742,123 @@ static void deepen_by_rev_list(int ac, const char **av,
send_shallow(result);
free_commit_list(result);
send_unshallow(shallows);
- packet_flush(1);
+}
+
+/* Returns 1 if a shallow list is sent or 0 otherwise */
+static int send_shallow_list(int depth, int deepen_rev_list,
+ timestamp_t deepen_since,
+ struct string_list *deepen_not,
+ struct object_array *shallows)
+{
+ int ret = 0;
+
+ if (depth > 0 && deepen_rev_list)
+ die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together");
+ if (depth > 0) {
+ deepen(depth, deepen_relative, shallows);
+ ret = 1;
+ } else if (deepen_rev_list) {
+ struct argv_array av = ARGV_ARRAY_INIT;
+ int i;
+
+ argv_array_push(&av, "rev-list");
+ if (deepen_since)
+ argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since);
+ if (deepen_not->nr) {
+ argv_array_push(&av, "--not");
+ for (i = 0; i < deepen_not->nr; i++) {
+ struct string_list_item *s = deepen_not->items + i;
+ argv_array_push(&av, s->string);
+ }
+ argv_array_push(&av, "--not");
+ }
+ for (i = 0; i < want_obj.nr; i++) {
+ struct object *o = want_obj.objects[i].item;
+ argv_array_push(&av, oid_to_hex(&o->oid));
+ }
+ deepen_by_rev_list(av.argc, av.argv, shallows);
+ argv_array_clear(&av);
+ ret = 1;
+ } else {
+ if (shallows->nr > 0) {
+ int i;
+ for (i = 0; i < shallows->nr; i++)
+ register_shallow(the_repository,
+ &shallows->objects[i].item->oid);
+ }
+ }
+
+ shallow_nr += shallows->nr;
+ return ret;
+}
+
+static int process_shallow(const char *line, struct object_array *shallows)
+{
+ const char *arg;
+ if (skip_prefix(line, "shallow ", &arg)) {
+ struct object_id oid;
+ struct object *object;
+ if (get_oid_hex(arg, &oid))
+ die("invalid shallow line: %s", line);
+ object = parse_object(&oid);
+ if (!object)
+ return 1;
+ if (object->type != OBJ_COMMIT)
+ die("invalid shallow object %s", oid_to_hex(&oid));
+ if (!(object->flags & CLIENT_SHALLOW)) {
+ object->flags |= CLIENT_SHALLOW;
+ add_object_array(object, NULL, shallows);
+ }
+ return 1;
+ }
+
+ return 0;
+}
+
+static int process_deepen(const char *line, int *depth)
+{
+ const char *arg;
+ if (skip_prefix(line, "deepen ", &arg)) {
+ char *end = NULL;
+ *depth = (int)strtol(arg, &end, 0);
+ if (!end || *end || *depth <= 0)
+ die("Invalid deepen: %s", line);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list)
+{
+ const char *arg;
+ if (skip_prefix(line, "deepen-since ", &arg)) {
+ char *end = NULL;
+ *deepen_since = parse_timestamp(arg, &end, 0);
+ if (!end || *end || !deepen_since ||
+ /* revisions.c's max_age -1 is special */
+ *deepen_since == -1)
+ die("Invalid deepen-since: %s", line);
+ *deepen_rev_list = 1;
+ return 1;
+ }
+ return 0;
+}
+
+static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list)
+{
+ const char *arg;
+ if (skip_prefix(line, "deepen-not ", &arg)) {
+ char *ref = NULL;
+ struct object_id oid;
+ if (expand_ref(arg, strlen(arg), &oid, &ref) != 1)
+ die("git upload-pack: ambiguous deepen-not: %s", line);
+ string_list_append(deepen_not, ref);
+ free(ref);
+ *deepen_rev_list = 1;
+ return 1;
+ }
+ return 0;
}
static void receive_needs(void)
@@ -770,61 +882,26 @@ static void receive_needs(void)
if (!line)
break;
- if (skip_prefix(line, "shallow ", &arg)) {
- struct object_id oid;
- struct object *object;
- if (get_oid_hex(arg, &oid))
- die("invalid shallow line: %s", line);
- object = parse_object(&oid);
- if (!object)
- continue;
- if (object->type != OBJ_COMMIT)
- die("invalid shallow object %s", oid_to_hex(&oid));
- if (!(object->flags & CLIENT_SHALLOW)) {
- object->flags |= CLIENT_SHALLOW;
- add_object_array(object, NULL, &shallows);
- }
+ if (process_shallow(line, &shallows))
continue;
- }
- if (skip_prefix(line, "deepen ", &arg)) {
- char *end = NULL;
- depth = strtol(arg, &end, 0);
- if (!end || *end || depth <= 0)
- die("Invalid deepen: %s", line);
+ if (process_deepen(line, &depth))
continue;
- }
- if (skip_prefix(line, "deepen-since ", &arg)) {
- char *end = NULL;
- deepen_since = parse_timestamp(arg, &end, 0);
- if (!end || *end || !deepen_since ||
- /* revisions.c's max_age -1 is special */
- deepen_since == -1)
- die("Invalid deepen-since: %s", line);
- deepen_rev_list = 1;
+ if (process_deepen_since(line, &deepen_since, &deepen_rev_list))
continue;
- }
- if (skip_prefix(line, "deepen-not ", &arg)) {
- char *ref = NULL;
- struct object_id oid;
- if (expand_ref(arg, strlen(arg), &oid, &ref) != 1)
- die("git upload-pack: ambiguous deepen-not: %s", line);
- string_list_append(&deepen_not, ref);
- free(ref);
- deepen_rev_list = 1;
+ if (process_deepen_not(line, &deepen_not, &deepen_rev_list))
continue;
- }
+
if (skip_prefix(line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
parse_list_objects_filter(&filter_options, arg);
continue;
}
+
if (!skip_prefix(line, "want ", &arg) ||
- get_oid_hex(arg, &oid_buf))
+ parse_oid_hex(arg, &oid_buf, &features))
die("git upload-pack: protocol error, "
- "expected to get sha, not '%s'", line);
-
- features = arg + 40;
+ "expected to get object ID, not '%s'", line);
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
@@ -881,40 +958,10 @@ static void receive_needs(void)
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
- if (depth > 0 && deepen_rev_list)
- die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together");
- if (depth > 0)
- deepen(depth, deepen_relative, &shallows);
- else if (deepen_rev_list) {
- struct argv_array av = ARGV_ARRAY_INIT;
- int i;
- argv_array_push(&av, "rev-list");
- if (deepen_since)
- argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since);
- if (deepen_not.nr) {
- argv_array_push(&av, "--not");
- for (i = 0; i < deepen_not.nr; i++) {
- struct string_list_item *s = deepen_not.items + i;
- argv_array_push(&av, s->string);
- }
- argv_array_push(&av, "--not");
- }
- for (i = 0; i < want_obj.nr; i++) {
- struct object *o = want_obj.objects[i].item;
- argv_array_push(&av, oid_to_hex(&o->oid));
- }
- deepen_by_rev_list(av.argc, av.argv, &shallows);
- argv_array_clear(&av);
- }
- else
- if (shallows.nr > 0) {
- int i;
- for (i = 0; i < shallows.nr; i++)
- register_shallow(&shallows.objects[i].item->oid);
- }
-
- shallow_nr += shallows.nr;
+ if (send_shallow_list(depth, deepen_rev_list, deepen_since,
+ &deepen_not, &shallows))
+ packet_flush(1);
object_array_clear(&shallows);
}
@@ -1004,33 +1051,6 @@ static int find_symref(const char *refname, const struct object_id *oid,
return 0;
}
-static void upload_pack(void)
-{
- struct string_list symref = STRING_LIST_INIT_DUP;
-
- head_ref_namespaced(find_symref, &symref);
-
- if (advertise_refs || !stateless_rpc) {
- reset_timeout();
- head_ref_namespaced(send_ref, &symref);
- for_each_namespaced_ref(send_ref, &symref);
- advertise_shallow_grafts(1);
- packet_flush(1);
- } else {
- head_ref_namespaced(check_ref, NULL);
- for_each_namespaced_ref(check_ref, NULL);
- }
- string_list_clear(&symref, 1);
- if (advertise_refs)
- return;
-
- receive_needs();
- if (want_obj.nr) {
- get_common_commits();
- create_pack_file();
- }
-}
-
static int upload_pack_config(const char *var, const char *value, void *unused)
{
if (!strcmp("uploadpack.allowtipsha1inwant", var)) {
@@ -1061,58 +1081,372 @@ static int upload_pack_config(const char *var, const char *value, void *unused)
return parse_hide_refs_config(var, value, "uploadpack");
}
-int cmd_main(int argc, const char **argv)
+void upload_pack(struct upload_pack_options *options)
{
- const char *dir;
- int strict = 0;
- struct option options[] = {
- OPT_BOOL(0, "stateless-rpc", &stateless_rpc,
- N_("quit after a single request/response exchange")),
- OPT_BOOL(0, "advertise-refs", &advertise_refs,
- N_("exit immediately after initial ref advertisement")),
- OPT_BOOL(0, "strict", &strict,
- N_("do not try <directory>/.git/ if <directory> is no Git directory")),
- OPT_INTEGER(0, "timeout", &timeout,
- N_("interrupt transfer after <n> seconds of inactivity")),
- OPT_END()
- };
+ struct string_list symref = STRING_LIST_INIT_DUP;
- packet_trace_identity("upload-pack");
- check_replace_refs = 0;
+ stateless_rpc = options->stateless_rpc;
+ timeout = options->timeout;
+ daemon_mode = options->daemon_mode;
- argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0);
+ git_config(upload_pack_config, NULL);
- if (argc != 1)
- usage_with_options(upload_pack_usage, options);
+ head_ref_namespaced(find_symref, &symref);
- if (timeout)
- daemon_mode = 1;
+ if (options->advertise_refs || !stateless_rpc) {
+ reset_timeout();
+ head_ref_namespaced(send_ref, &symref);
+ for_each_namespaced_ref(send_ref, &symref);
+ advertise_shallow_grafts(1);
+ packet_flush(1);
+ } else {
+ head_ref_namespaced(check_ref, NULL);
+ for_each_namespaced_ref(check_ref, NULL);
+ }
+ string_list_clear(&symref, 1);
+ if (options->advertise_refs)
+ return;
+
+ receive_needs();
+ if (want_obj.nr) {
+ get_common_commits();
+ create_pack_file();
+ }
+}
+
+struct upload_pack_data {
+ struct object_array wants;
+ struct oid_array haves;
- setup_path();
+ struct object_array shallows;
+ struct string_list deepen_not;
+ int depth;
+ timestamp_t deepen_since;
+ int deepen_rev_list;
+ int deepen_relative;
- dir = argv[0];
+ unsigned stateless_rpc : 1;
- if (!enter_repo(dir, strict))
- die("'%s' does not appear to be a git repository", dir);
+ unsigned use_thin_pack : 1;
+ unsigned use_ofs_delta : 1;
+ unsigned no_progress : 1;
+ unsigned use_include_tag : 1;
+ unsigned done : 1;
+};
+
+static void upload_pack_data_init(struct upload_pack_data *data)
+{
+ struct object_array wants = OBJECT_ARRAY_INIT;
+ struct oid_array haves = OID_ARRAY_INIT;
+ struct object_array shallows = OBJECT_ARRAY_INIT;
+ struct string_list deepen_not = STRING_LIST_INIT_DUP;
+
+ memset(data, 0, sizeof(*data));
+ data->wants = wants;
+ data->haves = haves;
+ data->shallows = shallows;
+ data->deepen_not = deepen_not;
+}
+
+static void upload_pack_data_clear(struct upload_pack_data *data)
+{
+ object_array_clear(&data->wants);
+ oid_array_clear(&data->haves);
+ object_array_clear(&data->shallows);
+ string_list_clear(&data->deepen_not, 0);
+}
+
+static int parse_want(const char *line)
+{
+ const char *arg;
+ if (skip_prefix(line, "want ", &arg)) {
+ struct object_id oid;
+ struct object *o;
+
+ if (get_oid_hex(arg, &oid))
+ die("git upload-pack: protocol error, "
+ "expected to get oid, not '%s'", line);
+
+ o = parse_object(&oid);
+ if (!o) {
+ packet_write_fmt(1,
+ "ERR upload-pack: not our ref %s",
+ oid_to_hex(&oid));
+ die("git upload-pack: not our ref %s",
+ oid_to_hex(&oid));
+ }
+
+ if (!(o->flags & WANTED)) {
+ o->flags |= WANTED;
+ add_object_array(o, NULL, &want_obj);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static int parse_have(const char *line, struct oid_array *haves)
+{
+ const char *arg;
+ if (skip_prefix(line, "have ", &arg)) {
+ struct object_id oid;
+
+ if (get_oid_hex(arg, &oid))
+ die("git upload-pack: expected SHA1 object, got '%s'", arg);
+ oid_array_append(haves, &oid);
+ return 1;
+ }
+
+ return 0;
+}
+
+static void process_args(struct packet_reader *request,
+ struct upload_pack_data *data)
+{
+ while (packet_reader_read(request) != PACKET_READ_FLUSH) {
+ const char *arg = request->line;
+ const char *p;
+
+ /* process want */
+ if (parse_want(arg))
+ continue;
+ /* process have line */
+ if (parse_have(arg, &data->haves))
+ continue;
+
+ /* process args like thin-pack */
+ if (!strcmp(arg, "thin-pack")) {
+ use_thin_pack = 1;
+ continue;
+ }
+ if (!strcmp(arg, "ofs-delta")) {
+ use_ofs_delta = 1;
+ continue;
+ }
+ if (!strcmp(arg, "no-progress")) {
+ no_progress = 1;
+ continue;
+ }
+ if (!strcmp(arg, "include-tag")) {
+ use_include_tag = 1;
+ continue;
+ }
+ if (!strcmp(arg, "done")) {
+ data->done = 1;
+ continue;
+ }
+
+ /* Shallow related arguments */
+ if (process_shallow(arg, &data->shallows))
+ continue;
+ if (process_deepen(arg, &data->depth))
+ continue;
+ if (process_deepen_since(arg, &data->deepen_since,
+ &data->deepen_rev_list))
+ continue;
+ if (process_deepen_not(arg, &data->deepen_not,
+ &data->deepen_rev_list))
+ continue;
+ if (!strcmp(arg, "deepen-relative")) {
+ data->deepen_relative = 1;
+ continue;
+ }
+
+ if (allow_filter && skip_prefix(arg, "filter ", &p)) {
+ parse_list_objects_filter(&filter_options, p);
+ continue;
+ }
+
+ /* ignore unknown lines maybe? */
+ die("unexpected line: '%s'", arg);
+ }
+}
+
+static int process_haves(struct oid_array *haves, struct oid_array *common)
+{
+ int i;
+
+ /* Process haves */
+ for (i = 0; i < haves->nr; i++) {
+ const struct object_id *oid = &haves->oid[i];
+ struct object *o;
+ int we_knew_they_have = 0;
+
+ if (!has_object_file(oid))
+ continue;
+
+ oid_array_append(common, oid);
+
+ o = parse_object(oid);
+ if (!o)
+ die("oops (%s)", oid_to_hex(oid));
+ if (o->type == OBJ_COMMIT) {
+ struct commit_list *parents;
+ struct commit *commit = (struct commit *)o;
+ if (o->flags & THEY_HAVE)
+ we_knew_they_have = 1;
+ else
+ o->flags |= THEY_HAVE;
+ if (!oldest_have || (commit->date < oldest_have))
+ oldest_have = commit->date;
+ for (parents = commit->parents;
+ parents;
+ parents = parents->next)
+ parents->item->object.flags |= THEY_HAVE;
+ }
+ if (!we_knew_they_have)
+ add_object_array(o, NULL, &have_obj);
+ }
+
+ return 0;
+}
+
+static int send_acks(struct oid_array *acks, struct strbuf *response)
+{
+ int i;
+
+ packet_buf_write(response, "acknowledgments\n");
+
+ /* Send Acks */
+ if (!acks->nr)
+ packet_buf_write(response, "NAK\n");
+
+ for (i = 0; i < acks->nr; i++) {
+ packet_buf_write(response, "ACK %s\n",
+ oid_to_hex(&acks->oid[i]));
+ }
+
+ if (ok_to_give_up()) {
+ /* Send Ready */
+ packet_buf_write(response, "ready\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static int process_haves_and_send_acks(struct upload_pack_data *data)
+{
+ struct oid_array common = OID_ARRAY_INIT;
+ struct strbuf response = STRBUF_INIT;
+ int ret = 0;
+
+ process_haves(&data->haves, &common);
+ if (data->done) {
+ ret = 1;
+ } else if (send_acks(&common, &response)) {
+ packet_buf_delim(&response);
+ ret = 1;
+ } else {
+ /* Add Flush */
+ packet_buf_flush(&response);
+ ret = 0;
+ }
+
+ /* Send response */
+ write_or_die(1, response.buf, response.len);
+ strbuf_release(&response);
+
+ oid_array_clear(&data->haves);
+ oid_array_clear(&common);
+ return ret;
+}
+
+static void send_shallow_info(struct upload_pack_data *data)
+{
+ /* No shallow info needs to be sent */
+ if (!data->depth && !data->deepen_rev_list && !data->shallows.nr &&
+ !is_repository_shallow(the_repository))
+ return;
+
+ packet_write_fmt(1, "shallow-info\n");
+
+ if (!send_shallow_list(data->depth, data->deepen_rev_list,
+ data->deepen_since, &data->deepen_not,
+ &data->shallows) &&
+ is_repository_shallow(the_repository))
+ deepen(INFINITE_DEPTH, data->deepen_relative, &data->shallows);
+
+ packet_delim(1);
+}
+
+enum fetch_state {
+ FETCH_PROCESS_ARGS = 0,
+ FETCH_SEND_ACKS,
+ FETCH_SEND_PACK,
+ FETCH_DONE,
+};
+
+int upload_pack_v2(struct repository *r, struct argv_array *keys,
+ struct packet_reader *request)
+{
+ enum fetch_state state = FETCH_PROCESS_ARGS;
+ struct upload_pack_data data;
git_config(upload_pack_config, NULL);
- switch (determine_protocol_version_server()) {
- case protocol_v1:
- /*
- * v1 is just the original protocol with a version string,
- * so just fall through after writing the version string.
- */
- if (advertise_refs || !stateless_rpc)
- packet_write_fmt(1, "version 1\n");
-
- /* fallthrough */
- case protocol_v0:
- upload_pack();
- break;
- case protocol_unknown_version:
- BUG("unknown protocol version");
+ upload_pack_data_init(&data);
+ use_sideband = LARGE_PACKET_MAX;
+
+ while (state != FETCH_DONE) {
+ switch (state) {
+ case FETCH_PROCESS_ARGS:
+ process_args(request, &data);
+
+ if (!want_obj.nr) {
+ /*
+ * Request didn't contain any 'want' lines,
+ * guess they didn't want anything.
+ */
+ state = FETCH_DONE;
+ } else if (data.haves.nr) {
+ /*
+ * Request had 'have' lines, so lets ACK them.
+ */
+ state = FETCH_SEND_ACKS;
+ } else {
+ /*
+ * Request had 'want's but no 'have's so we can
+ * immedietly go to construct and send a pack.
+ */
+ state = FETCH_SEND_PACK;
+ }
+ break;
+ case FETCH_SEND_ACKS:
+ if (process_haves_and_send_acks(&data))
+ state = FETCH_SEND_PACK;
+ else
+ state = FETCH_DONE;
+ break;
+ case FETCH_SEND_PACK:
+ send_shallow_info(&data);
+
+ packet_write_fmt(1, "packfile\n");
+ create_pack_file();
+ state = FETCH_DONE;
+ break;
+ case FETCH_DONE:
+ continue;
+ }
}
+ upload_pack_data_clear(&data);
return 0;
}
+
+int upload_pack_advertise(struct repository *r,
+ struct strbuf *value)
+{
+ if (value) {
+ int allow_filter_value;
+ strbuf_addstr(value, "shallow");
+ if (!repo_config_get_bool(the_repository,
+ "uploadpack.allowfilter",
+ &allow_filter_value) &&
+ allow_filter_value)
+ strbuf_addstr(value, " filter");
+ }
+ return 1;
+}