#include "cache.h"
+#include "commit.h"
#include "refs.h"
#include "pkt-line.h"
static const char send_pack_usage[] =
-"git-send-pack [--exec=git-receive-pack] [host:]directory [heads]*";
+"git-send-pack [--all] [--exec=git-receive-pack] <remote> [<head>...]\n"
+" --all and explicit <head> specification are mutually exclusive.";
static const char *exec = "git-receive-pack";
-
-struct ref {
- struct ref *next;
- unsigned char old_sha1[20];
- unsigned char new_sha1[20];
- char name[0];
-};
+static int send_all = 0;
+static int force_update = 0;
static int is_zero_sha1(const unsigned char *sha1)
{
static int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
{
- if (!has_sha1_file(old_sha1))
+ struct commit *new, *old;
+ struct commit_list *list;
+
+ if (force_update)
+ return 1;
+ old = lookup_commit_reference(old_sha1);
+ if (!old)
return 0;
- /*
- * FIXME! It is not correct to say that the new one is newer
- * just because we don't have the old one!
- *
- * We should really see if we can reach the old_sha1 commit
- * from the new_sha1 one.
- */
- return 1;
+ new = lookup_commit_reference(new_sha1);
+ if (!new)
+ return 0;
+ if (parse_commit(new) < 0)
+ return 0;
+ list = NULL;
+ commit_list_insert(new, &list);
+ while (list) {
+ new = pop_most_recent_commit(&list, 1);
+ if (new == old)
+ return 1;
+ }
+ return 0;
}
static int local_ref_nr_match;
static char **local_ref_match;
-static struct ref **local_ref_list;
+static struct ref *local_ref_list;
+static struct ref **local_last_ref;
static int try_to_match(const char *refname, const unsigned char *sha1)
{
struct ref *ref;
int len;
- if (!path_match(refname, local_ref_nr_match, local_ref_match))
- return 0;
+ if (!path_match(refname, local_ref_nr_match, local_ref_match)) {
+ if (!send_all)
+ return 0;
+
+ /* If we have it listed already, skip it */
+ for (ref = local_ref_list ; ref ; ref = ref->next) {
+ if (!strcmp(ref->name, refname))
+ return 0;
+ }
+ }
len = strlen(refname)+1;
ref = xmalloc(sizeof(*ref) + len);
memcpy(ref->new_sha1, sha1, 20);
memcpy(ref->name, refname, len);
ref->next = NULL;
- *local_ref_list = ref;
- local_ref_list = &ref->next;
+ *local_last_ref = ref;
+ local_last_ref = &ref->next;
return 0;
}
static int send_pack(int in, int out, int nr_match, char **match)
{
- struct ref *ref_list = NULL, **last_ref = &ref_list;
+ struct ref *ref_list, **last_ref;
struct ref *ref;
int new_refs;
- /*
- * Read all the refs from the other end
- */
- for (;;) {
- unsigned char old_sha1[20];
- static char buffer[1000];
- char *name;
- int len;
-
- len = packet_read_line(in, buffer, sizeof(buffer));
- if (!len)
- break;
- if (buffer[len-1] == '\n')
- buffer[--len] = 0;
-
- if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ')
- die("protocol error: expected sha/ref, got '%s'", buffer);
- name = buffer + 41;
- ref = xmalloc(sizeof(*ref) + len - 40);
- memcpy(ref->old_sha1, old_sha1, 20);
- memset(ref->new_sha1, 0, 20);
- memcpy(ref->name, buffer + 41, len - 40);
- ref->next = NULL;
- *last_ref = ref;
- last_ref = &ref->next;
- }
+ /* First we get all heads, whether matching or not.. */
+ last_ref = get_remote_heads(in, &ref_list, 0, NULL);
/*
* Go through the refs, see if we want to update
}
if (!ref_newer(new_sha1, ref->old_sha1)) {
- error("remote '%s' points to object I don't have", name);
+ error("remote '%s' isn't a strict parent of local", name);
continue;
}
/*
* See if we have any refs that the other end didn't have
*/
- if (nr_match) {
+ if (nr_match || send_all) {
local_ref_nr_match = nr_match;
local_ref_match = match;
- local_ref_list = last_ref;
+ local_ref_list = ref_list;
+ local_last_ref = last_ref;
for_each_ref(try_to_match);
}
pid_t pid;
argv++;
- for (i = 1; i < argc; i++) {
- char *arg = *argv++;
+ for (i = 1; i < argc; i++, argv++) {
+ char *arg = *argv;
if (*arg == '-') {
if (!strncmp(arg, "--exec=", 7)) {
exec = arg + 7;
continue;
}
+ if (!strcmp(arg, "--all")) {
+ send_all = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--force")) {
+ force_update = 1;
+ continue;
+ }
usage(send_pack_usage);
}
- dest = arg;
+ if (!dest) {
+ dest = arg;
+ continue;
+ }
heads = argv;
- nr_heads = argc - i -1;
+ nr_heads = argc - i;
break;
}
if (!dest)
usage(send_pack_usage);
+ if (heads && send_all)
+ usage(send_pack_usage);
pid = git_connect(fd, dest, exec);
if (pid < 0)
return 1;