#include "cache.h"
+#include "config.h"
#include "refs.h"
#include "pkt-line.h"
#include "sideband.h"
#include "revision.h"
#include "list-objects.h"
#include "run-command.h"
+#include "connect.h"
#include "sigchain.h"
-
-static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
-
-/* bits #0..7 in revision.h, #8..10 in commit.c */
+#include "version.h"
+#include "string-list.h"
+#include "parse-options.h"
+#include "argv-array.h"
+#include "prio-queue.h"
+
+static const char * const upload_pack_usage[] = {
+ N_("git upload-pack [<options>] <dir>"),
+ NULL
+};
+
+/* Remember to update object flag allocation in object.h */
#define THEY_HAVE (1u << 11)
#define OUR_REF (1u << 12)
#define WANTED (1u << 13)
#define SHALLOW (1u << 16)
#define NOT_SHALLOW (1u << 17)
#define CLIENT_SHALLOW (1u << 18)
+#define HIDDEN_REF (1u << 19)
-static unsigned long oldest_have;
+static timestamp_t oldest_have;
-static int multi_ack, nr_our_refs;
+static int deepen_relative;
+static int multi_ack;
static int no_done;
static int use_thin_pack, use_ofs_delta, use_include_tag;
static int no_progress, daemon_mode;
+/* Allow specifying sha1 if it is a ref tip. */
+#define ALLOW_TIP_SHA1 01
+/* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */
+#define ALLOW_REACHABLE_SHA1 02
+/* Allow request of any sha1. Implies ALLOW_TIP_SHA1 and ALLOW_REACHABLE_SHA1. */
+#define ALLOW_ANY_SHA1 07
+static unsigned int allow_unadvertised_object_request;
static int shallow_nr;
static struct object_array have_obj;
static struct object_array want_obj;
static struct object_array extra_edge_obj;
static unsigned int timeout;
+static int keepalive = 5;
/* 0 for no sideband,
* otherwise maximum packet size (up to 65520 bytes).
*/
static int use_sideband;
-static int debug_fd;
static int advertise_refs;
static int stateless_rpc;
+static const char *pack_objects_hook;
static void reset_timeout(void)
{
alarm(timeout);
}
-static int strip(char *line, int len)
+static void send_client_data(int fd, const char *data, ssize_t sz)
{
- if (len && line[len-1] == '\n')
- line[--len] = 0;
- return len;
-}
-
-static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
-{
- if (use_sideband)
- return send_sideband(1, fd, data, sz, use_sideband);
+ if (use_sideband) {
+ send_sideband(1, fd, data, sz, use_sideband);
+ return;
+ }
if (fd == 3)
/* emergency quit */
fd = 2;
if (fd == 2) {
/* XXX: are we happy to lose stuff here? */
xwrite(fd, data, sz);
- return sz;
+ return;
}
- return safe_write(fd, data, sz);
-}
-
-static FILE *pack_pipe = NULL;
-static void show_commit(struct commit *commit, void *data)
-{
- if (commit->object.flags & BOUNDARY)
- fputc('-', pack_pipe);
- if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
- die("broken output pipe");
- fputc('\n', pack_pipe);
- fflush(pack_pipe);
- free(commit->buffer);
- commit->buffer = NULL;
-}
-
-static void show_object(struct object *obj,
- const struct name_path *path, const char *component,
- void *cb_data)
-{
- show_object_with_name(pack_pipe, obj, path, component);
+ write_or_die(fd, data, sz);
}
-static void show_edge(struct commit *commit)
+static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
{
- fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
-}
-
-static int do_rev_list(int in, int out, void *user_data)
-{
- int i;
- struct rev_info revs;
-
- pack_pipe = xfdopen(out, "w");
- init_revisions(&revs, NULL);
- revs.tag_objects = 1;
- revs.tree_objects = 1;
- revs.blob_objects = 1;
- if (use_thin_pack)
- revs.edge_hint = 1;
-
- for (i = 0; i < want_obj.nr; i++) {
- struct object *o = want_obj.objects[i].item;
- /* why??? */
- o->flags &= ~UNINTERESTING;
- add_pending_object(&revs, o, NULL);
- }
- for (i = 0; i < have_obj.nr; i++) {
- struct object *o = have_obj.objects[i].item;
- o->flags |= UNINTERESTING;
- add_pending_object(&revs, o, NULL);
- }
- setup_revisions(0, NULL, &revs, NULL);
- if (prepare_revision_walk(&revs))
- die("revision walk setup failed");
- mark_edges_uninteresting(revs.commits, &revs, show_edge);
- if (use_thin_pack)
- for (i = 0; i < extra_edge_obj.nr; i++)
- fprintf(pack_pipe, "-%s\n", sha1_to_hex(
- extra_edge_obj.objects[i].item->sha1));
- traverse_commit_list(&revs, show_commit, show_object, NULL);
- fflush(pack_pipe);
- fclose(pack_pipe);
+ FILE *fp = cb_data;
+ if (graft->nr_parent == -1)
+ fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid));
return 0;
}
static void create_pack_file(void)
{
- struct async rev_list;
- struct child_process pack_objects;
- int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
+ struct child_process pack_objects = CHILD_PROCESS_INIT;
char data[8193], progress[128];
char abort_msg[] = "aborting due to possible repository "
"corruption on the remote side.";
int buffered = -1;
ssize_t sz;
- const char *argv[10];
- int arg = 0;
-
- argv[arg++] = "pack-objects";
- if (!shallow_nr) {
- argv[arg++] = "--revs";
- if (create_full_pack)
- argv[arg++] = "--all";
- else if (use_thin_pack)
- argv[arg++] = "--thin";
+ int i;
+ FILE *pipe_fd;
+
+ if (!pack_objects_hook)
+ pack_objects.git_cmd = 1;
+ else {
+ argv_array_push(&pack_objects.args, pack_objects_hook);
+ argv_array_push(&pack_objects.args, "git");
+ pack_objects.use_shell = 1;
}
- argv[arg++] = "--stdout";
+ if (shallow_nr) {
+ argv_array_push(&pack_objects.args, "--shallow-file");
+ argv_array_push(&pack_objects.args, "");
+ }
+ argv_array_push(&pack_objects.args, "pack-objects");
+ argv_array_push(&pack_objects.args, "--revs");
+ if (use_thin_pack)
+ argv_array_push(&pack_objects.args, "--thin");
+
+ argv_array_push(&pack_objects.args, "--stdout");
+ if (shallow_nr)
+ argv_array_push(&pack_objects.args, "--shallow");
if (!no_progress)
- argv[arg++] = "--progress";
+ argv_array_push(&pack_objects.args, "--progress");
if (use_ofs_delta)
- argv[arg++] = "--delta-base-offset";
+ argv_array_push(&pack_objects.args, "--delta-base-offset");
if (use_include_tag)
- argv[arg++] = "--include-tag";
- argv[arg++] = NULL;
+ argv_array_push(&pack_objects.args, "--include-tag");
- memset(&pack_objects, 0, sizeof(pack_objects));
pack_objects.in = -1;
pack_objects.out = -1;
pack_objects.err = -1;
- pack_objects.git_cmd = 1;
- pack_objects.argv = argv;
if (start_command(&pack_objects))
die("git upload-pack: unable to fork git-pack-objects");
- if (shallow_nr) {
- memset(&rev_list, 0, sizeof(rev_list));
- rev_list.proc = do_rev_list;
- rev_list.out = pack_objects.in;
- if (start_async(&rev_list))
- die("git upload-pack: unable to fork git-rev-list");
- }
- else {
- FILE *pipe_fd = xfdopen(pack_objects.in, "w");
- if (!create_full_pack) {
- int i;
- for (i = 0; i < want_obj.nr; i++)
- fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1));
- fprintf(pipe_fd, "--not\n");
- for (i = 0; i < have_obj.nr; i++)
- fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1));
- }
-
- fprintf(pipe_fd, "\n");
- fflush(pipe_fd);
- fclose(pipe_fd);
- }
-
+ pipe_fd = xfdopen(pack_objects.in, "w");
+
+ if (shallow_nr)
+ for_each_commit_graft(write_one_shallow, pipe_fd);
+
+ for (i = 0; i < want_obj.nr; i++)
+ fprintf(pipe_fd, "%s\n",
+ oid_to_hex(&want_obj.objects[i].item->oid));
+ fprintf(pipe_fd, "--not\n");
+ for (i = 0; i < have_obj.nr; i++)
+ fprintf(pipe_fd, "%s\n",
+ oid_to_hex(&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));
+ fprintf(pipe_fd, "\n");
+ fflush(pipe_fd);
+ fclose(pipe_fd);
/* We read from pack_objects.err to capture stderr output for
* progress bar, and pack_objects.out to capture the pack data.
while (1) {
struct pollfd pfd[2];
int pe, pu, pollsize;
+ int ret;
reset_timeout();
if (!pollsize)
break;
- if (poll(pfd, pollsize, -1) < 0) {
+ ret = poll(pfd, pollsize,
+ keepalive < 0 ? -1 : 1000 * keepalive);
+
+ if (ret < 0) {
if (errno != EINTR) {
- error("poll failed, resuming: %s",
- strerror(errno));
+ error_errno("poll failed, resuming");
sleep(1);
}
continue;
}
else
buffered = -1;
- sz = send_client_data(1, data, sz);
- if (sz < 0)
- goto fail;
+ send_client_data(1, data, sz);
+ }
+
+ /*
+ * We hit the keepalive timeout without saying anything; send
+ * an empty message on the data sideband just to let the other
+ * side know we're still working on it, but don't have any data
+ * yet.
+ *
+ * If we don't have a sideband channel, there's no room in the
+ * protocol to say anything, so those clients are just out of
+ * luck.
+ */
+ if (!ret && use_sideband) {
+ static const char buf[] = "0005\1";
+ write_or_die(1, buf, 5);
}
}
error("git upload-pack: git-pack-objects died with error.");
goto fail;
}
- if (shallow_nr && finish_async(&rev_list))
- goto fail; /* error was already reported */
/* flush the data */
if (0 <= buffered) {
data[0] = buffered;
- sz = send_client_data(1, data, 1);
- if (sz < 0)
- goto fail;
+ send_client_data(1, data, 1);
fprintf(stderr, "flushed.\n");
}
if (use_sideband)
die("git upload-pack: %s", abort_msg);
}
-static int got_sha1(char *hex, unsigned char *sha1)
+static int got_oid(const char *hex, struct object_id *oid)
{
struct object *o;
int we_knew_they_have = 0;
- if (get_sha1_hex(hex, sha1))
+ if (get_oid_hex(hex, oid))
die("git upload-pack: expected SHA1 object, got '%s'", hex);
- if (!has_sha1_file(sha1))
+ if (!has_object_file(oid))
return -1;
- o = lookup_object(sha1);
- if (!(o && o->parsed))
- o = parse_object(sha1);
+ o = parse_object(oid);
if (!o)
- die("oops (%s)", sha1_to_hex(sha1));
+ die("oops (%s)", oid_to_hex(oid));
if (o->type == OBJ_COMMIT) {
struct commit_list *parents;
struct commit *commit = (struct commit *)o;
static int reachable(struct commit *want)
{
- struct commit_list *work = NULL;
+ struct prio_queue work = { compare_commits_by_commit_date };
- commit_list_insert_by_date(want, &work);
- while (work) {
- struct commit_list *list = work->next;
- struct commit *commit = work->item;
- free(work);
- work = list;
+ prio_queue_put(&work, want);
+ while (work.nr) {
+ struct commit_list *list;
+ struct commit *commit = prio_queue_get(&work);
if (commit->object.flags & THEY_HAVE) {
want->object.flags |= COMMON_KNOWN;
break;
}
if (!commit->object.parsed)
- parse_object(commit->object.sha1);
+ parse_object(&commit->object.oid);
if (commit->object.flags & REACHABLE)
continue;
commit->object.flags |= REACHABLE;
for (list = commit->parents; list; list = list->next) {
struct commit *parent = list->item;
if (!(parent->object.flags & REACHABLE))
- commit_list_insert_by_date(parent, &work);
+ prio_queue_put(&work, parent);
}
}
want->object.flags |= REACHABLE;
clear_commit_marks(want, REACHABLE);
- free_commit_list(work);
+ clear_prio_queue(&work);
return (want->object.flags & COMMON_KNOWN);
}
static int get_common_commits(void)
{
- static char line[1000];
- unsigned char sha1[20];
- char last_hex[41];
+ struct object_id oid;
+ char last_hex[GIT_MAX_HEXSZ + 1];
int got_common = 0;
int got_other = 0;
int sent_ready = 0;
save_commit_buffer = 0;
for (;;) {
- int len = packet_read_line(0, line, sizeof(line));
+ char *line = packet_read_line(0, NULL);
+ const char *arg;
+
reset_timeout();
- if (!len) {
+ if (!line) {
if (multi_ack == 2 && got_common
&& !got_other && ok_to_give_up()) {
sent_ready = 1;
- packet_write(1, "ACK %s ready\n", last_hex);
+ packet_write_fmt(1, "ACK %s ready\n", last_hex);
}
if (have_obj.nr == 0 || multi_ack)
- packet_write(1, "NAK\n");
+ packet_write_fmt(1, "NAK\n");
if (no_done && sent_ready) {
- packet_write(1, "ACK %s\n", last_hex);
+ packet_write_fmt(1, "ACK %s\n", last_hex);
return 0;
}
if (stateless_rpc)
got_other = 0;
continue;
}
- strip(line, len);
- if (!prefixcmp(line, "have ")) {
- switch (got_sha1(line+5, sha1)) {
+ if (skip_prefix(line, "have ", &arg)) {
+ switch (got_oid(arg, &oid)) {
case -1: /* they have what we do not */
got_other = 1;
if (multi_ack && ok_to_give_up()) {
- const char *hex = sha1_to_hex(sha1);
+ const char *hex = oid_to_hex(&oid);
if (multi_ack == 2) {
sent_ready = 1;
- packet_write(1, "ACK %s ready\n", hex);
+ packet_write_fmt(1, "ACK %s ready\n", hex);
} else
- packet_write(1, "ACK %s continue\n", hex);
+ packet_write_fmt(1, "ACK %s continue\n", hex);
}
break;
default:
got_common = 1;
- memcpy(last_hex, sha1_to_hex(sha1), 41);
+ memcpy(last_hex, oid_to_hex(&oid), 41);
if (multi_ack == 2)
- packet_write(1, "ACK %s common\n", last_hex);
+ packet_write_fmt(1, "ACK %s common\n", last_hex);
else if (multi_ack)
- packet_write(1, "ACK %s continue\n", last_hex);
+ packet_write_fmt(1, "ACK %s continue\n", last_hex);
else if (have_obj.nr == 1)
- packet_write(1, "ACK %s\n", last_hex);
+ packet_write_fmt(1, "ACK %s\n", last_hex);
break;
}
continue;
if (!strcmp(line, "done")) {
if (have_obj.nr > 0) {
if (multi_ack)
- packet_write(1, "ACK %s\n", last_hex);
+ packet_write_fmt(1, "ACK %s\n", last_hex);
return 0;
}
- packet_write(1, "NAK\n");
+ packet_write_fmt(1, "NAK\n");
return -1;
}
die("git upload-pack: expected SHA1 list, got '%s'", line);
}
}
-static void check_non_tip(void)
+static int is_our_ref(struct object *o)
+{
+ int allow_hidden_ref = (allow_unadvertised_object_request &
+ (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1));
+ return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF);
+}
+
+/*
+ * on successful case, it's up to the caller to close cmd->out
+ */
+static int do_reachable_revlist(struct child_process *cmd,
+ struct object_array *src,
+ struct object_array *reachable)
{
static const char *argv[] = {
"rev-list", "--stdin", NULL,
};
- static struct child_process cmd;
struct object *o;
char namebuf[42]; /* ^ + SHA-1 + LF */
int i;
- /* In the normal in-process case non-tip request can never happen */
- if (!stateless_rpc)
- goto error;
-
- cmd.argv = argv;
- cmd.git_cmd = 1;
- cmd.no_stderr = 1;
- cmd.in = -1;
- cmd.out = -1;
-
- if (start_command(&cmd))
- goto error;
+ cmd->argv = argv;
+ cmd->git_cmd = 1;
+ cmd->no_stderr = 1;
+ cmd->in = -1;
+ cmd->out = -1;
/*
- * If rev-list --stdin encounters an unknown commit, it
- * terminates, which will cause SIGPIPE in the write loop
+ * If the next rev-list --stdin encounters an unknown commit,
+ * it terminates, which will cause SIGPIPE in the write loop
* below.
*/
sigchain_push(SIGPIPE, SIG_IGN);
+ if (start_command(cmd))
+ goto error;
+
namebuf[0] = '^';
- namebuf[41] = '\n';
+ namebuf[GIT_SHA1_HEXSZ + 1] = '\n';
for (i = get_max_object_index(); 0 < i; ) {
o = get_indexed_object(--i);
if (!o)
continue;
- if (!(o->flags & OUR_REF))
+ if (reachable && o->type == OBJ_COMMIT)
+ o->flags &= ~TMP_MARK;
+ if (!is_our_ref(o))
continue;
- memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
- if (write_in_full(cmd.in, namebuf, 42) < 0)
+ memcpy(namebuf + 1, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
+ if (write_in_full(cmd->in, namebuf, GIT_SHA1_HEXSZ + 2) < 0)
goto error;
}
- namebuf[40] = '\n';
- for (i = 0; i < want_obj.nr; i++) {
- o = want_obj.objects[i].item;
- if (o->flags & OUR_REF)
+ namebuf[GIT_SHA1_HEXSZ] = '\n';
+ for (i = 0; i < src->nr; i++) {
+ o = src->objects[i].item;
+ if (is_our_ref(o)) {
+ if (reachable)
+ add_object_array(o, NULL, reachable);
continue;
- memcpy(namebuf, sha1_to_hex(o->sha1), 40);
- if (write_in_full(cmd.in, namebuf, 41) < 0)
+ }
+ if (reachable && o->type == OBJ_COMMIT)
+ o->flags |= TMP_MARK;
+ memcpy(namebuf, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
+ if (write_in_full(cmd->in, namebuf, GIT_SHA1_HEXSZ + 1) < 0)
goto error;
}
- close(cmd.in);
+ close(cmd->in);
+ cmd->in = -1;
+ sigchain_pop(SIGPIPE);
+ return 0;
+
+error:
sigchain_pop(SIGPIPE);
+ if (cmd->in >= 0)
+ close(cmd->in);
+ if (cmd->out >= 0)
+ close(cmd->out);
+ return -1;
+}
+
+static int get_reachable_list(struct object_array *src,
+ struct object_array *reachable)
+{
+ struct child_process cmd = CHILD_PROCESS_INIT;
+ int i;
+ struct object *o;
+ char namebuf[42]; /* ^ + SHA-1 + LF */
+
+ if (do_reachable_revlist(&cmd, src, reachable) < 0)
+ return -1;
+
+ while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) {
+ struct object_id sha1;
+
+ if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
+ break;
+
+ o = lookup_object(sha1.hash);
+ if (o && o->type == OBJ_COMMIT) {
+ o->flags &= ~TMP_MARK;
+ }
+ }
+ for (i = get_max_object_index(); 0 < i; i--) {
+ o = get_indexed_object(i - 1);
+ if (o && o->type == OBJ_COMMIT &&
+ (o->flags & TMP_MARK)) {
+ add_object_array(o, NULL, reachable);
+ o->flags &= ~TMP_MARK;
+ }
+ }
+ close(cmd.out);
+
+ if (finish_command(&cmd))
+ return -1;
+
+ return 0;
+}
+
+static int has_unreachable(struct object_array *src)
+{
+ struct child_process cmd = CHILD_PROCESS_INIT;
+ char buf[1];
+ int i;
+
+ if (do_reachable_revlist(&cmd, src, NULL) < 0)
+ return 1;
+
/*
* The commits out of the rev-list are not ancestors of
* our ref.
*/
- i = read_in_full(cmd.out, namebuf, 1);
+ i = read_in_full(cmd.out, buf, 1);
if (i)
goto error;
close(cmd.out);
+ cmd.out = -1;
/*
* rev-list may have died by encountering a bad commit
goto error;
/* All the non-tip ones are ancestors of what we advertised */
- return;
+ return 0;
+
+error:
+ sigchain_pop(SIGPIPE);
+ if (cmd.out >= 0)
+ close(cmd.out);
+ return 1;
+}
+
+static void check_non_tip(void)
+{
+ int i;
+
+ /*
+ * In the normal in-process case without
+ * uploadpack.allowReachableSHA1InWant,
+ * non-tip requests can never happen.
+ */
+ if (!stateless_rpc && !(allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1))
+ goto error;
+ if (!has_unreachable(&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++) {
- o = want_obj.objects[i].item;
- if (!(o->flags & OUR_REF))
+ struct object *o = want_obj.objects[i].item;
+ if (!is_our_ref(o))
die("git upload-pack: not our ref %s",
- sha1_to_hex(o->sha1));
+ oid_to_hex(&o->oid));
+ }
+}
+
+static void send_shallow(struct commit_list *result)
+{
+ while (result) {
+ struct object *object = &result->item->object;
+ if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
+ packet_write_fmt(1, "shallow %s",
+ oid_to_hex(&object->oid));
+ register_shallow(&object->oid);
+ shallow_nr++;
+ }
+ result = result->next;
+ }
+}
+
+static void send_unshallow(const struct object_array *shallows)
+{
+ int i;
+
+ for (i = 0; i < shallows->nr; i++) {
+ struct object *object = shallows->objects[i].item;
+ if (object->flags & NOT_SHALLOW) {
+ struct commit_list *parents;
+ packet_write_fmt(1, "unshallow %s",
+ oid_to_hex(&object->oid));
+ object->flags &= ~CLIENT_SHALLOW;
+ /*
+ * We want to _register_ "object" as shallow, but we
+ * also need to traverse object's parents to deepen a
+ * shallow clone. Unregister it for now so we can
+ * parse and add the parents to the want list, then
+ * re-register it.
+ */
+ unregister_shallow(&object->oid);
+ object->parsed = 0;
+ parse_commit_or_die((struct commit *)object);
+ parents = ((struct commit *)object)->parents;
+ while (parents) {
+ add_object_array(&parents->item->object,
+ NULL, &want_obj);
+ parents = parents->next;
+ }
+ add_object_array(object, NULL, &extra_edge_obj);
+ }
+ /* make sure commit traversal conforms to client */
+ register_shallow(&object->oid);
+ }
+}
+
+static void deepen(int depth, int deepen_relative,
+ struct object_array *shallows)
+{
+ if (depth == INFINITE_DEPTH && !is_repository_shallow()) {
+ int i;
+
+ for (i = 0; i < shallows->nr; i++) {
+ struct object *object = shallows->objects[i].item;
+ object->flags |= NOT_SHALLOW;
+ }
+ } else if (deepen_relative) {
+ struct object_array reachable_shallows = OBJECT_ARRAY_INIT;
+ struct commit_list *result;
+
+ get_reachable_list(shallows, &reachable_shallows);
+ result = get_shallow_commits(&reachable_shallows,
+ depth + 1,
+ SHALLOW, NOT_SHALLOW);
+ send_shallow(result);
+ free_commit_list(result);
+ object_array_clear(&reachable_shallows);
+ } else {
+ struct commit_list *result;
+
+ result = get_shallow_commits(&want_obj, depth,
+ SHALLOW, NOT_SHALLOW);
+ send_shallow(result);
+ free_commit_list(result);
}
+
+ send_unshallow(shallows);
+ packet_flush(1);
+}
+
+static void deepen_by_rev_list(int ac, const char **av,
+ struct object_array *shallows)
+{
+ struct commit_list *result;
+
+ result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW);
+ send_shallow(result);
+ free_commit_list(result);
+ send_unshallow(shallows);
+ packet_flush(1);
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
- static char line[1000];
- int len, depth = 0;
+ 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;
shallow_nr = 0;
- if (debug_fd)
- write_str_in_full(debug_fd, "#S\n");
for (;;) {
struct object *o;
const char *features;
- unsigned char sha1_buf[20];
- len = packet_read_line(0, line, sizeof(line));
+ struct object_id oid_buf;
+ char *line = packet_read_line(0, NULL);
+ const char *arg;
+
reset_timeout();
- if (!len)
+ if (!line)
break;
- if (debug_fd)
- write_in_full(debug_fd, line, len);
- if (!prefixcmp(line, "shallow ")) {
- unsigned char sha1[20];
+ if (skip_prefix(line, "shallow ", &arg)) {
+ struct object_id oid;
struct object *object;
- if (get_sha1(line + 8, sha1))
+ if (get_oid_hex(arg, &oid))
die("invalid shallow line: %s", line);
- object = parse_object(sha1);
+ object = parse_object(&oid);
if (!object)
- die("did not find object for %s", line);
- object->flags |= CLIENT_SHALLOW;
- add_object_array(object, NULL, &shallows);
+ 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);
+ }
continue;
}
- if (!prefixcmp(line, "deepen ")) {
- char *end;
- depth = strtol(line + 7, &end, 0);
- if (end == line + 7 || depth <= 0)
+ if (skip_prefix(line, "deepen ", &arg)) {
+ char *end = NULL;
+ depth = strtol(arg, &end, 0);
+ if (!end || *end || depth <= 0)
die("Invalid deepen: %s", line);
continue;
}
- if (prefixcmp(line, "want ") ||
- get_sha1_hex(line+5, sha1_buf))
+ 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;
+ continue;
+ }
+ if (skip_prefix(line, "deepen-not ", &arg)) {
+ char *ref = NULL;
+ struct object_id oid;
+ if (expand_ref(arg, strlen(arg), oid.hash, &ref) != 1)
+ die("git upload-pack: ambiguous deepen-not: %s", line);
+ string_list_append(&deepen_not, ref);
+ free(ref);
+ deepen_rev_list = 1;
+ continue;
+ }
+ if (!skip_prefix(line, "want ", &arg) ||
+ get_oid_hex(arg, &oid_buf))
die("git upload-pack: protocol error, "
"expected to get sha, not '%s'", line);
- features = line + 45;
+ features = arg + 40;
+ if (parse_feature_request(features, "deepen-relative"))
+ deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
- o = lookup_object(sha1_buf);
- if (!o)
+ o = parse_object(&oid_buf);
+ if (!o) {
+ packet_write_fmt(1,
+ "ERR upload-pack: not our ref %s",
+ oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
- sha1_to_hex(sha1_buf));
+ oid_to_hex(&oid_buf));
+ }
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
- if (!(o->flags & OUR_REF))
+ 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);
}
}
- if (debug_fd)
- write_str_in_full(debug_fd, "#E\n");
/*
* We have sent all our refs already, and the other end
if (!use_sideband && daemon_mode)
no_progress = 1;
- if (depth == 0 && shallows.nr == 0)
+ if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
- if (depth > 0) {
- struct commit_list *result, *backup;
+ 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;
- backup = result = get_shallow_commits(&want_obj, depth,
- SHALLOW, NOT_SHALLOW);
- while (result) {
- struct object *object = &result->item->object;
- if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
- packet_write(1, "shallow %s",
- sha1_to_hex(object->sha1));
- register_shallow(object->sha1);
- shallow_nr++;
+
+ 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);
}
- result = result->next;
+ argv_array_push(&av, "--not");
}
- free_commit_list(backup);
- for (i = 0; i < shallows.nr; i++) {
- struct object *object = shallows.objects[i].item;
- if (object->flags & NOT_SHALLOW) {
- struct commit_list *parents;
- packet_write(1, "unshallow %s",
- sha1_to_hex(object->sha1));
- object->flags &= ~CLIENT_SHALLOW;
- /* make sure the real parents are parsed */
- unregister_shallow(object->sha1);
- object->parsed = 0;
- if (parse_commit((struct commit *)object))
- die("invalid commit");
- parents = ((struct commit *)object)->parents;
- while (parents) {
- add_object_array(&parents->item->object,
- NULL, &want_obj);
- parents = parents->next;
- }
- add_object_array(object, NULL, &extra_edge_obj);
- }
- /* make sure commit traversal conforms to client */
- register_shallow(object->sha1);
+ 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));
}
- packet_flush(1);
- } else
+ 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->sha1);
+ register_shallow(&shallows.objects[i].item->oid);
}
shallow_nr += shallows.nr;
- free(shallows.objects);
+ object_array_clear(&shallows);
+}
+
+/* return non-zero if the ref is hidden, otherwise 0 */
+static int mark_our_ref(const char *refname, const char *refname_full,
+ const struct object_id *oid)
+{
+ struct object *o = lookup_unknown_object(oid->hash);
+
+ if (ref_is_hidden(refname, refname_full)) {
+ o->flags |= HIDDEN_REF;
+ return 1;
+ }
+ o->flags |= OUR_REF;
+ return 0;
+}
+
+static int check_ref(const char *refname_full, const struct object_id *oid,
+ int flag, void *cb_data)
+{
+ const char *refname = strip_namespace(refname_full);
+
+ mark_our_ref(refname, refname_full, oid);
+ return 0;
+}
+
+static void format_symref_info(struct strbuf *buf, struct string_list *symref)
+{
+ struct string_list_item *item;
+
+ if (!symref->nr)
+ return;
+ for_each_string_list_item(item, symref)
+ strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util);
}
-static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+static int send_ref(const char *refname, const struct object_id *oid,
+ int flag, void *cb_data)
{
static const char *capabilities = "multi_ack thin-pack side-band"
- " side-band-64k ofs-delta shallow no-progress"
- " include-tag multi_ack_detailed";
- struct object *o = lookup_unknown_object(sha1);
+ " side-band-64k ofs-delta shallow deepen-since deepen-not"
+ " deepen-relative no-progress include-tag multi_ack_detailed";
const char *refname_nons = strip_namespace(refname);
+ struct object_id peeled;
- if (o->type == OBJ_NONE) {
- o->type = sha1_object_info(sha1, NULL);
- if (o->type < 0)
- die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
- }
+ if (mark_our_ref(refname_nons, refname, oid))
+ return 0;
- if (capabilities)
- packet_write(1, "%s %s%c%s%s\n", sha1_to_hex(sha1), refname_nons,
+ if (capabilities) {
+ struct strbuf symref_info = STRBUF_INIT;
+
+ format_symref_info(&symref_info, cb_data);
+ packet_write_fmt(1, "%s %s%c%s%s%s%s%s agent=%s\n",
+ oid_to_hex(oid), refname_nons,
0, capabilities,
- stateless_rpc ? " no-done" : "");
- else
- packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
- capabilities = NULL;
- if (!(o->flags & OUR_REF)) {
- o->flags |= OUR_REF;
- nr_our_refs++;
- }
- if (o->type == OBJ_TAG) {
- o = deref_tag_noverify(o);
- if (o)
- packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname_nons);
+ (allow_unadvertised_object_request & ALLOW_TIP_SHA1) ?
+ " allow-tip-sha1-in-want" : "",
+ (allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1) ?
+ " allow-reachable-sha1-in-want" : "",
+ stateless_rpc ? " no-done" : "",
+ symref_info.buf,
+ git_user_agent_sanitized());
+ strbuf_release(&symref_info);
+ } else {
+ packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), refname_nons);
}
+ capabilities = NULL;
+ if (!peel_ref(refname, peeled.hash))
+ packet_write_fmt(1, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons);
return 0;
}
-static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+static int find_symref(const char *refname, const struct object_id *oid,
+ int flag, void *cb_data)
{
- struct object *o = parse_object(sha1);
- if (!o)
- die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
- if (!(o->flags & OUR_REF)) {
- o->flags |= OUR_REF;
- nr_our_refs++;
- }
+ const char *symref_target;
+ struct string_list_item *item;
+
+ if ((flag & REF_ISSYMREF) == 0)
+ return 0;
+ symref_target = resolve_ref_unsafe(refname, 0, NULL, &flag);
+ if (!symref_target || (flag & REF_ISSYMREF) == 0)
+ die("'%s' is a symref but it is not?", refname);
+ item = string_list_append(cb_data, refname);
+ item->util = xstrdup(symref_target);
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, NULL);
- for_each_namespaced_ref(send_ref, NULL);
+ head_ref_namespaced(send_ref, &symref);
+ for_each_namespaced_ref(send_ref, &symref);
+ advertise_shallow_grafts(1);
packet_flush(1);
} else {
- head_ref_namespaced(mark_our_ref, NULL);
- for_each_namespaced_ref(mark_our_ref, NULL);
+ head_ref_namespaced(check_ref, NULL);
+ for_each_namespaced_ref(check_ref, NULL);
}
+ string_list_clear(&symref, 1);
if (advertise_refs)
return;
}
}
-int main(int argc, char **argv)
+static int upload_pack_config(const char *var, const char *value, void *unused)
{
- char *dir;
- int i;
- int strict = 0;
+ if (!strcmp("uploadpack.allowtipsha1inwant", var)) {
+ if (git_config_bool(var, value))
+ allow_unadvertised_object_request |= ALLOW_TIP_SHA1;
+ else
+ allow_unadvertised_object_request &= ~ALLOW_TIP_SHA1;
+ } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) {
+ if (git_config_bool(var, value))
+ allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1;
+ else
+ allow_unadvertised_object_request &= ~ALLOW_REACHABLE_SHA1;
+ } else if (!strcmp("uploadpack.allowanysha1inwant", var)) {
+ if (git_config_bool(var, value))
+ allow_unadvertised_object_request |= ALLOW_ANY_SHA1;
+ else
+ allow_unadvertised_object_request &= ~ALLOW_ANY_SHA1;
+ } else if (!strcmp("uploadpack.keepalive", var)) {
+ keepalive = git_config_int(var, value);
+ if (!keepalive)
+ keepalive = -1;
+ } else if (current_config_scope() != CONFIG_SCOPE_REPO) {
+ if (!strcmp("uploadpack.packobjectshook", var))
+ return git_config_string(&pack_objects_hook, var, value);
+ }
+ return parse_hide_refs_config(var, value, "uploadpack");
+}
- git_setup_gettext();
+int cmd_main(int argc, const char **argv)
+{
+ 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()
+ };
packet_trace_identity("upload-pack");
- git_extract_argv0_path(argv[0]);
- read_replace_refs = 0;
+ check_replace_refs = 0;
- for (i = 1; i < argc; i++) {
- char *arg = argv[i];
+ argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0);
- if (arg[0] != '-')
- break;
- if (!strcmp(arg, "--advertise-refs")) {
- advertise_refs = 1;
- continue;
- }
- if (!strcmp(arg, "--stateless-rpc")) {
- stateless_rpc = 1;
- continue;
- }
- if (!strcmp(arg, "--strict")) {
- strict = 1;
- continue;
- }
- if (!prefixcmp(arg, "--timeout=")) {
- timeout = atoi(arg+10);
- daemon_mode = 1;
- continue;
- }
- if (!strcmp(arg, "--")) {
- i++;
- break;
- }
- }
+ if (argc != 1)
+ usage_with_options(upload_pack_usage, options);
- if (i != argc-1)
- usage(upload_pack_usage);
+ if (timeout)
+ daemon_mode = 1;
setup_path();
- dir = argv[i];
+ dir = argv[0];
if (!enter_repo(dir, strict))
die("'%s' does not appear to be a git repository", dir);
- if (is_repository_shallow())
- die("attempt to fetch/clone from a shallow repository");
- if (getenv("GIT_DEBUG_SEND_PACK"))
- debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
+
+ git_config(upload_pack_config, NULL);
upload_pack();
return 0;
}
projects / platform / upstream / git.git / blobdiff