Merge branch 'cc/upload-pack-data'

Code clean-up.

* cc/upload-pack-data:
  upload-pack: use upload_pack_data fields in receive_needs()
  upload-pack: pass upload_pack_data to create_pack_file()
  upload-pack: remove static variable 'stateless_rpc'
  upload-pack: pass upload_pack_data to check_non_tip()
  upload-pack: pass upload_pack_data to send_ref()
  upload-pack: move symref to upload_pack_data
  upload-pack: use upload_pack_data writer in receive_needs()
  upload-pack: pass upload_pack_data to receive_needs()
  upload-pack: pass upload_pack_data to get_common_commits()
  upload-pack: use 'struct upload_pack_data' in upload_pack()
  upload-pack: move 'struct upload_pack_data' around
  upload-pack: move {want,have}_obj to upload_pack_data
  upload-pack: remove unused 'wants' from upload_pack_data
This commit is contained in:
Junio C Hamano 2020-06-08 18:06:32 -07:00
commit 8d04c98866

View file

@ -63,7 +63,6 @@ static int keepalive = 5;
* otherwise maximum packet size (up to 65520 bytes).
*/
static int use_sideband;
static int stateless_rpc;
static const char *pack_objects_hook;
static int filter_capability_requested;
@ -72,6 +71,66 @@ static int allow_ref_in_want;
static int allow_sideband_all;
struct upload_pack_data {
struct string_list symref;
struct string_list wanted_refs;
struct object_array want_obj;
struct object_array have_obj;
struct oid_array haves;
struct object_array shallows;
struct string_list deepen_not;
int depth;
timestamp_t deepen_since;
int deepen_rev_list;
int deepen_relative;
struct list_objects_filter_options filter_options;
struct packet_writer writer;
unsigned stateless_rpc : 1;
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 string_list symref = STRING_LIST_INIT_DUP;
struct string_list wanted_refs = STRING_LIST_INIT_DUP;
struct object_array want_obj = OBJECT_ARRAY_INIT;
struct object_array have_obj = 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->symref = symref;
data->wanted_refs = wanted_refs;
data->want_obj = want_obj;
data->have_obj = have_obj;
data->haves = haves;
data->shallows = shallows;
data->deepen_not = deepen_not;
packet_writer_init(&data->writer, 1);
}
static void upload_pack_data_clear(struct upload_pack_data *data)
{
string_list_clear(&data->symref, 1);
string_list_clear(&data->wanted_refs, 1);
object_array_clear(&data->want_obj);
object_array_clear(&data->have_obj);
oid_array_clear(&data->haves);
object_array_clear(&data->shallows);
string_list_clear(&data->deepen_not, 0);
list_objects_filter_release(&data->filter_options);
}
static void reset_timeout(void)
{
alarm(timeout);
@ -102,9 +161,7 @@ static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
return 0;
}
static void create_pack_file(const struct object_array *have_obj,
const struct object_array *want_obj,
struct list_objects_filter_options *filter_options)
static void create_pack_file(struct upload_pack_data *pack_data)
{
struct child_process pack_objects = CHILD_PROCESS_INIT;
char data[8193], progress[128];
@ -141,9 +198,9 @@ static void create_pack_file(const struct object_array *have_obj,
argv_array_push(&pack_objects.args, "--delta-base-offset");
if (use_include_tag)
argv_array_push(&pack_objects.args, "--include-tag");
if (filter_options->choice) {
if (pack_data->filter_options.choice) {
const char *spec =
expand_list_objects_filter_spec(filter_options);
expand_list_objects_filter_spec(&pack_data->filter_options);
if (pack_objects.use_shell) {
struct strbuf buf = STRBUF_INIT;
sq_quote_buf(&buf, spec);
@ -167,13 +224,13 @@ static void create_pack_file(const struct object_array *have_obj,
if (shallow_nr)
for_each_commit_graft(write_one_shallow, pipe_fd);
for (i = 0; i < want_obj->nr; i++)
for (i = 0; i < pack_data->want_obj.nr; i++)
fprintf(pipe_fd, "%s\n",
oid_to_hex(&want_obj->objects[i].item->oid));
oid_to_hex(&pack_data->want_obj.objects[i].item->oid));
fprintf(pipe_fd, "--not\n");
for (i = 0; i < have_obj->nr; i++)
for (i = 0; i < pack_data->have_obj.nr; i++)
fprintf(pipe_fd, "%s\n",
oid_to_hex(&have_obj->objects[i].item->oid));
oid_to_hex(&pack_data->have_obj.objects[i].item->oid));
for (i = 0; i < extra_edge_obj.nr; i++)
fprintf(pipe_fd, "%s\n",
oid_to_hex(&extra_edge_obj.objects[i].item->oid));
@ -358,9 +415,8 @@ static int ok_to_give_up(const struct object_array *have_obj,
min_generation);
}
static int get_common_commits(struct packet_reader *reader,
struct object_array *have_obj,
struct object_array *want_obj)
static int get_common_commits(struct upload_pack_data *data,
struct packet_reader *reader)
{
struct object_id oid;
char last_hex[GIT_MAX_HEXSZ + 1];
@ -376,29 +432,32 @@ static int get_common_commits(struct packet_reader *reader,
reset_timeout();
if (packet_reader_read(reader) != PACKET_READ_NORMAL) {
if (multi_ack == 2 && got_common
&& !got_other && ok_to_give_up(have_obj, want_obj)) {
if (multi_ack == 2
&& got_common
&& !got_other
&& ok_to_give_up(&data->have_obj, &data->want_obj)) {
sent_ready = 1;
packet_write_fmt(1, "ACK %s ready\n", last_hex);
}
if (have_obj->nr == 0 || multi_ack)
if (data->have_obj.nr == 0 || multi_ack)
packet_write_fmt(1, "NAK\n");
if (no_done && sent_ready) {
packet_write_fmt(1, "ACK %s\n", last_hex);
return 0;
}
if (stateless_rpc)
if (data->stateless_rpc)
exit(0);
got_common = 0;
got_other = 0;
continue;
}
if (skip_prefix(reader->line, "have ", &arg)) {
switch (got_oid(arg, &oid, have_obj)) {
switch (got_oid(arg, &oid, &data->have_obj)) {
case -1: /* they have what we do not */
got_other = 1;
if (multi_ack && ok_to_give_up(have_obj, want_obj)) {
if (multi_ack
&& ok_to_give_up(&data->have_obj, &data->want_obj)) {
const char *hex = oid_to_hex(&oid);
if (multi_ack == 2) {
sent_ready = 1;
@ -414,14 +473,14 @@ static int get_common_commits(struct packet_reader *reader,
packet_write_fmt(1, "ACK %s common\n", last_hex);
else if (multi_ack)
packet_write_fmt(1, "ACK %s continue\n", last_hex);
else if (have_obj->nr == 1)
else if (data->have_obj.nr == 1)
packet_write_fmt(1, "ACK %s\n", last_hex);
break;
}
continue;
}
if (!strcmp(reader->line, "done")) {
if (have_obj->nr > 0) {
if (data->have_obj.nr > 0) {
if (multi_ack)
packet_write_fmt(1, "ACK %s\n", last_hex);
return 0;
@ -592,8 +651,7 @@ static int has_unreachable(struct object_array *src)
return 1;
}
static void check_non_tip(struct object_array *want_obj,
struct packet_writer *writer)
static void check_non_tip(struct upload_pack_data *data)
{
int i;
@ -602,18 +660,19 @@ static void check_non_tip(struct object_array *want_obj,
* uploadpack.allowReachableSHA1InWant,
* non-tip requests can never happen.
*/
if (!stateless_rpc && !(allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1))
if (!data->stateless_rpc
&& !(allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1))
goto error;
if (!has_unreachable(want_obj))
if (!has_unreachable(&data->want_obj))
/* All the non-tip ones are ancestors of what we advertised */
return;
error:
/* Pick one of them (we know there at least is one) */
for (i = 0; i < want_obj->nr; i++) {
struct object *o = want_obj->objects[i].item;
for (i = 0; i < data->want_obj.nr; i++) {
struct object *o = data->want_obj.objects[i].item;
if (!is_our_ref(o)) {
packet_writer_error(writer,
packet_writer_error(&data->writer,
"upload-pack: not our ref %s",
oid_to_hex(&o->oid));
die("git upload-pack: not our ref %s",
@ -849,21 +908,12 @@ static int process_deepen_not(const char *line, struct string_list *deepen_not,
return 0;
}
static void receive_needs(struct packet_reader *reader,
struct object_array *want_obj,
struct list_objects_filter_options *filter_options)
static void receive_needs(struct upload_pack_data *data,
struct packet_reader *reader)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
int depth = 0;
int has_non_tip = 0;
timestamp_t deepen_since = 0;
int deepen_rev_list = 0;
int deepen_relative = 0;
struct packet_writer writer;
shallow_nr = 0;
packet_writer_init(&writer, 1);
for (;;) {
struct object *o;
const char *features;
@ -874,20 +924,20 @@ static void receive_needs(struct packet_reader *reader,
if (packet_reader_read(reader) != PACKET_READ_NORMAL)
break;
if (process_shallow(reader->line, &shallows))
if (process_shallow(reader->line, &data->shallows))
continue;
if (process_deepen(reader->line, &depth))
if (process_deepen(reader->line, &data->depth))
continue;
if (process_deepen_since(reader->line, &deepen_since, &deepen_rev_list))
if (process_deepen_since(reader->line, &data->deepen_since, &data->deepen_rev_list))
continue;
if (process_deepen_not(reader->line, &deepen_not, &deepen_rev_list))
if (process_deepen_not(reader->line, &data->deepen_not, &data->deepen_rev_list))
continue;
if (skip_prefix(reader->line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
list_objects_filter_die_if_populated(filter_options);
parse_list_objects_filter(filter_options, arg);
list_objects_filter_die_if_populated(&data->filter_options);
parse_list_objects_filter(&data->filter_options, arg);
continue;
}
@ -897,7 +947,7 @@ static void receive_needs(struct packet_reader *reader,
"expected to get object ID, not '%s'", reader->line);
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
data->deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
@ -921,7 +971,7 @@ static void receive_needs(struct packet_reader *reader,
o = parse_object(the_repository, &oid_buf);
if (!o) {
packet_writer_error(&writer,
packet_writer_error(&data->writer,
"upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
@ -932,7 +982,7 @@ static void receive_needs(struct packet_reader *reader,
if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1
|| is_our_ref(o)))
has_non_tip = 1;
add_object_array(o, NULL, want_obj);
add_object_array(o, NULL, &data->want_obj);
}
}
@ -944,19 +994,23 @@ static void receive_needs(struct packet_reader *reader,
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip(want_obj, &writer);
check_non_tip(data);
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
if (data->depth == 0 && !data->deepen_rev_list && data->shallows.nr == 0)
return;
if (send_shallow_list(&writer, depth, deepen_rev_list, deepen_since,
&deepen_not, deepen_relative, &shallows,
want_obj))
if (send_shallow_list(&data->writer,
data->depth,
data->deepen_rev_list,
data->deepen_since,
&data->deepen_not,
data->deepen_relative,
&data->shallows,
&data->want_obj))
packet_flush(1);
object_array_clear(&shallows);
}
/* return non-zero if the ref is hidden, otherwise 0 */
@ -1000,6 +1054,7 @@ static int send_ref(const char *refname, const struct object_id *oid,
" deepen-relative no-progress include-tag multi_ack_detailed";
const char *refname_nons = strip_namespace(refname);
struct object_id peeled;
struct upload_pack_data *data = cb_data;
if (mark_our_ref(refname_nons, refname, oid))
return 0;
@ -1007,7 +1062,7 @@ static int send_ref(const char *refname, const struct object_id *oid,
if (capabilities) {
struct strbuf symref_info = STRBUF_INIT;
format_symref_info(&symref_info, cb_data);
format_symref_info(&symref_info, &data->symref);
packet_write_fmt(1, "%s %s%c%s%s%s%s%s%s agent=%s\n",
oid_to_hex(oid), refname_nons,
0, capabilities,
@ -1015,7 +1070,7 @@ static int send_ref(const char *refname, const struct object_id *oid,
" allow-tip-sha1-in-want" : "",
(allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1) ?
" allow-reachable-sha1-in-want" : "",
stateless_rpc ? " no-done" : "",
data->stateless_rpc ? " no-done" : "",
symref_info.buf,
allow_filter ? " filter" : "",
git_user_agent_sanitized());
@ -1087,99 +1142,44 @@ static int upload_pack_config(const char *var, const char *value, void *unused)
void upload_pack(struct upload_pack_options *options)
{
struct string_list symref = STRING_LIST_INIT_DUP;
struct object_array want_obj = OBJECT_ARRAY_INIT;
struct packet_reader reader;
struct list_objects_filter_options filter_options;
struct upload_pack_data data;
stateless_rpc = options->stateless_rpc;
timeout = options->timeout;
daemon_mode = options->daemon_mode;
memset(&filter_options, 0, sizeof(filter_options));
git_config(upload_pack_config, NULL);
head_ref_namespaced(find_symref, &symref);
upload_pack_data_init(&data);
if (options->advertise_refs || !stateless_rpc) {
data.stateless_rpc = options->stateless_rpc;
head_ref_namespaced(find_symref, &data.symref);
if (options->advertise_refs || !data.stateless_rpc) {
reset_timeout();
head_ref_namespaced(send_ref, &symref);
for_each_namespaced_ref(send_ref, &symref);
head_ref_namespaced(send_ref, &data);
for_each_namespaced_ref(send_ref, &data);
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;
packet_reader_init(&reader, 0, NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_DIE_ON_ERR_PACKET);
if (!options->advertise_refs) {
packet_reader_init(&reader, 0, NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_DIE_ON_ERR_PACKET);
receive_needs(&reader, &want_obj, &filter_options);
if (want_obj.nr) {
struct object_array have_obj = OBJECT_ARRAY_INIT;
get_common_commits(&reader, &have_obj, &want_obj);
create_pack_file(&have_obj, &want_obj, &filter_options);
receive_needs(&data, &reader);
if (data.want_obj.nr) {
get_common_commits(&data, &reader);
create_pack_file(&data);
}
}
list_objects_filter_release(&filter_options);
}
struct upload_pack_data {
struct object_array wants;
struct string_list wanted_refs;
struct oid_array haves;
struct object_array shallows;
struct string_list deepen_not;
int depth;
timestamp_t deepen_since;
int deepen_rev_list;
int deepen_relative;
struct list_objects_filter_options filter_options;
struct packet_writer writer;
unsigned stateless_rpc : 1;
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 string_list wanted_refs = STRING_LIST_INIT_DUP;
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->wanted_refs = wanted_refs;
data->haves = haves;
data->shallows = shallows;
data->deepen_not = deepen_not;
packet_writer_init(&data->writer, 1);
}
static void upload_pack_data_clear(struct upload_pack_data *data)
{
object_array_clear(&data->wants);
string_list_clear(&data->wanted_refs, 1);
oid_array_clear(&data->haves);
object_array_clear(&data->shallows);
string_list_clear(&data->deepen_not, 0);
list_objects_filter_release(&data->filter_options);
upload_pack_data_clear(&data);
}
static int parse_want(struct packet_writer *writer, const char *line,
@ -1260,19 +1260,18 @@ static int parse_have(const char *line, struct oid_array *haves)
}
static void process_args(struct packet_reader *request,
struct upload_pack_data *data,
struct object_array *want_obj)
struct upload_pack_data *data)
{
while (packet_reader_read(request) == PACKET_READ_NORMAL) {
const char *arg = request->line;
const char *p;
/* process want */
if (parse_want(&data->writer, arg, want_obj))
if (parse_want(&data->writer, arg, &data->want_obj))
continue;
if (allow_ref_in_want &&
parse_want_ref(&data->writer, arg, &data->wanted_refs,
want_obj))
&data->want_obj))
continue;
/* process have line */
if (parse_have(arg, &data->haves))
@ -1403,17 +1402,16 @@ static int send_acks(struct packet_writer *writer, struct oid_array *acks,
return 0;
}
static int process_haves_and_send_acks(struct upload_pack_data *data,
struct object_array *have_obj,
struct object_array *want_obj)
static int process_haves_and_send_acks(struct upload_pack_data *data)
{
struct oid_array common = OID_ARRAY_INIT;
int ret = 0;
process_haves(&data->haves, &common, have_obj);
process_haves(&data->haves, &common, &data->have_obj);
if (data->done) {
ret = 1;
} else if (send_acks(&data->writer, &common, have_obj, want_obj)) {
} else if (send_acks(&data->writer, &common,
&data->have_obj, &data->want_obj)) {
packet_writer_delim(&data->writer);
ret = 1;
} else {
@ -1445,8 +1443,7 @@ static void send_wanted_ref_info(struct upload_pack_data *data)
packet_writer_delim(&data->writer);
}
static void send_shallow_info(struct upload_pack_data *data,
struct object_array *want_obj)
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 &&
@ -1459,10 +1456,10 @@ static void send_shallow_info(struct upload_pack_data *data,
data->deepen_rev_list,
data->deepen_since, &data->deepen_not,
data->deepen_relative,
&data->shallows, want_obj) &&
&data->shallows, &data->want_obj) &&
is_repository_shallow(the_repository))
deepen(&data->writer, INFINITE_DEPTH, data->deepen_relative,
&data->shallows, want_obj);
&data->shallows, &data->want_obj);
packet_delim(1);
}
@ -1479,8 +1476,6 @@ int upload_pack_v2(struct repository *r, struct argv_array *keys,
{
enum fetch_state state = FETCH_PROCESS_ARGS;
struct upload_pack_data data;
struct object_array have_obj = OBJECT_ARRAY_INIT;
struct object_array want_obj = OBJECT_ARRAY_INIT;
clear_object_flags(ALL_FLAGS);
@ -1492,9 +1487,9 @@ int upload_pack_v2(struct repository *r, struct argv_array *keys,
while (state != FETCH_DONE) {
switch (state) {
case FETCH_PROCESS_ARGS:
process_args(request, &data, &want_obj);
process_args(request, &data);
if (!want_obj.nr) {
if (!data.want_obj.nr) {
/*
* Request didn't contain any 'want' lines,
* guess they didn't want anything.
@ -1514,18 +1509,17 @@ int upload_pack_v2(struct repository *r, struct argv_array *keys,
}
break;
case FETCH_SEND_ACKS:
if (process_haves_and_send_acks(&data, &have_obj,
&want_obj))
if (process_haves_and_send_acks(&data))
state = FETCH_SEND_PACK;
else
state = FETCH_DONE;
break;
case FETCH_SEND_PACK:
send_wanted_ref_info(&data);
send_shallow_info(&data, &want_obj);
send_shallow_info(&data);
packet_writer_write(&data.writer, "packfile\n");
create_pack_file(&have_obj, &want_obj, &data.filter_options);
create_pack_file(&data);
state = FETCH_DONE;
break;
case FETCH_DONE:
@ -1534,8 +1528,6 @@ int upload_pack_v2(struct repository *r, struct argv_array *keys,
}
upload_pack_data_clear(&data);
object_array_clear(&have_obj);
object_array_clear(&want_obj);
return 0;
}