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-rw-r--r--send-pack.c412
1 files changed, 0 insertions, 412 deletions
diff --git a/send-pack.c b/send-pack.c
deleted file mode 100644
index c8ffc8d537..0000000000
--- a/send-pack.c
+++ /dev/null
@@ -1,412 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-#include "pkt-line.h"
-#include "exec_cmd.h"
-
-static const char send_pack_usage[] =
-"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";
-static int verbose = 0;
-static int send_all = 0;
-static int force_update = 0;
-static int use_thin_pack = 0;
-
-static int is_zero_sha1(const unsigned char *sha1)
-{
- int i;
-
- for (i = 0; i < 20; i++) {
- if (*sha1++)
- return 0;
- }
- return 1;
-}
-
-static void exec_pack_objects(void)
-{
- static const char *args[] = {
- "pack-objects",
- "--stdout",
- NULL
- };
- execv_git_cmd(args);
- die("git-pack-objects exec failed (%s)", strerror(errno));
-}
-
-static void exec_rev_list(struct ref *refs)
-{
- struct ref *ref;
- static const char *args[1000];
- int i = 0, j;
-
- args[i++] = "rev-list"; /* 0 */
- if (use_thin_pack) /* 1 */
- args[i++] = "--objects-edge";
- else
- args[i++] = "--objects";
-
- /* First send the ones we care about most */
- for (ref = refs; ref; ref = ref->next) {
- if (900 < i)
- die("git-rev-list environment overflow");
- if (!is_zero_sha1(ref->new_sha1)) {
- char *buf = malloc(100);
- args[i++] = buf;
- snprintf(buf, 50, "%s", sha1_to_hex(ref->new_sha1));
- buf += 50;
- if (!is_zero_sha1(ref->old_sha1) &&
- has_sha1_file(ref->old_sha1)) {
- args[i++] = buf;
- snprintf(buf, 50, "^%s",
- sha1_to_hex(ref->old_sha1));
- }
- }
- }
-
- /* Then a handful of the remainder
- * NEEDSWORK: we would be better off if used the newer ones first.
- */
- for (ref = refs, j = i + 16;
- i < 900 && i < j && ref;
- ref = ref->next) {
- if (is_zero_sha1(ref->new_sha1) &&
- !is_zero_sha1(ref->old_sha1) &&
- has_sha1_file(ref->old_sha1)) {
- char *buf = malloc(42);
- args[i++] = buf;
- snprintf(buf, 42, "^%s", sha1_to_hex(ref->old_sha1));
- }
- }
- args[i] = NULL;
- execv_git_cmd(args);
- die("git-rev-list exec failed (%s)", strerror(errno));
-}
-
-static void rev_list(int fd, struct ref *refs)
-{
- int pipe_fd[2];
- pid_t pack_objects_pid;
-
- if (pipe(pipe_fd) < 0)
- die("rev-list setup: pipe failed");
- pack_objects_pid = fork();
- if (!pack_objects_pid) {
- dup2(pipe_fd[0], 0);
- dup2(fd, 1);
- close(pipe_fd[0]);
- close(pipe_fd[1]);
- close(fd);
- exec_pack_objects();
- die("pack-objects setup failed");
- }
- if (pack_objects_pid < 0)
- die("pack-objects fork failed");
- dup2(pipe_fd[1], 1);
- close(pipe_fd[0]);
- close(pipe_fd[1]);
- close(fd);
- exec_rev_list(refs);
-}
-
-static int pack_objects(int fd, struct ref *refs)
-{
- pid_t rev_list_pid;
-
- rev_list_pid = fork();
- if (!rev_list_pid) {
- rev_list(fd, refs);
- die("rev-list setup failed");
- }
- if (rev_list_pid < 0)
- die("rev-list fork failed");
- /*
- * We don't wait for the rev-list pipeline in the parent:
- * we end up waiting for the other end instead
- */
- return 0;
-}
-
-static void unmark_and_free(struct commit_list *list, unsigned int mark)
-{
- while (list) {
- struct commit_list *temp = list;
- temp->item->object.flags &= ~mark;
- list = temp->next;
- free(temp);
- }
-}
-
-static int ref_newer(const unsigned char *new_sha1,
- const unsigned char *old_sha1)
-{
- struct object *o;
- struct commit *old, *new;
- struct commit_list *list, *used;
- int found = 0;
-
- /* Both new and old must be commit-ish and new is descendant of
- * old. Otherwise we require --force.
- */
- o = deref_tag(parse_object(old_sha1), NULL, 0);
- if (!o || o->type != commit_type)
- return 0;
- old = (struct commit *) o;
-
- o = deref_tag(parse_object(new_sha1), NULL, 0);
- if (!o || o->type != commit_type)
- return 0;
- new = (struct commit *) o;
-
- if (parse_commit(new) < 0)
- return 0;
-
- used = list = NULL;
- commit_list_insert(new, &list);
- while (list) {
- new = pop_most_recent_commit(&list, 1);
- commit_list_insert(new, &used);
- if (new == old) {
- found = 1;
- break;
- }
- }
- unmark_and_free(list, 1);
- unmark_and_free(used, 1);
- return found;
-}
-
-static struct ref *local_refs, **local_tail;
-static struct ref *remote_refs, **remote_tail;
-
-static int one_local_ref(const char *refname, const unsigned char *sha1)
-{
- struct ref *ref;
- int len = strlen(refname) + 1;
- ref = xcalloc(1, sizeof(*ref) + len);
- memcpy(ref->new_sha1, sha1, 20);
- memcpy(ref->name, refname, len);
- *local_tail = ref;
- local_tail = &ref->next;
- return 0;
-}
-
-static void get_local_heads(void)
-{
- local_tail = &local_refs;
- for_each_ref(one_local_ref);
-}
-
-static int receive_status(int in)
-{
- char line[1000];
- int ret = 0;
- int len = packet_read_line(in, line, sizeof(line));
- if (len < 10 || memcmp(line, "unpack ", 7)) {
- fprintf(stderr, "did not receive status back\n");
- return -1;
- }
- if (memcmp(line, "unpack ok\n", 10)) {
- fputs(line, stderr);
- ret = -1;
- }
- while (1) {
- len = packet_read_line(in, line, sizeof(line));
- if (!len)
- break;
- if (len < 3 ||
- (memcmp(line, "ok", 2) && memcmp(line, "ng", 2))) {
- fprintf(stderr, "protocol error: %s\n", line);
- ret = -1;
- break;
- }
- if (!memcmp(line, "ok", 2))
- continue;
- fputs(line, stderr);
- ret = -1;
- }
- return ret;
-}
-
-static int send_pack(int in, int out, int nr_refspec, char **refspec)
-{
- struct ref *ref;
- int new_refs;
- int ret = 0;
- int ask_for_status_report = 0;
- int expect_status_report = 0;
-
- /* No funny business with the matcher */
- remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, 1);
- get_local_heads();
-
- /* Does the other end support the reporting? */
- if (server_supports("report-status"))
- ask_for_status_report = 1;
-
- /* match them up */
- if (!remote_tail)
- remote_tail = &remote_refs;
- if (match_refs(local_refs, remote_refs, &remote_tail,
- nr_refspec, refspec, send_all))
- return -1;
-
- if (!remote_refs) {
- fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
- return 0;
- }
-
- /*
- * Finally, tell the other end!
- */
- new_refs = 0;
- for (ref = remote_refs; ref; ref = ref->next) {
- char old_hex[60], *new_hex;
- if (!ref->peer_ref)
- continue;
- if (!memcmp(ref->old_sha1, ref->peer_ref->new_sha1, 20)) {
- if (verbose)
- fprintf(stderr, "'%s': up-to-date\n", ref->name);
- continue;
- }
-
- /* This part determines what can overwrite what.
- * The rules are:
- *
- * (0) you can always use --force or +A:B notation to
- * selectively force individual ref pairs.
- *
- * (1) if the old thing does not exist, it is OK.
- *
- * (2) if you do not have the old thing, you are not allowed
- * to overwrite it; you would not know what you are losing
- * otherwise.
- *
- * (3) if both new and old are commit-ish, and new is a
- * descendant of old, it is OK.
- */
-
- if (!force_update &&
- !is_zero_sha1(ref->old_sha1) &&
- !ref->force) {
- if (!has_sha1_file(ref->old_sha1) ||
- !ref_newer(ref->peer_ref->new_sha1,
- ref->old_sha1)) {
- /* We do not have the remote ref, or
- * we know that the remote ref is not
- * an ancestor of what we are trying to
- * push. Either way this can be losing
- * commits at the remote end and likely
- * we were not up to date to begin with.
- */
- error("remote '%s' is not a strict "
- "subset of local ref '%s'. "
- "maybe you are not up-to-date and "
- "need to pull first?",
- ref->name,
- ref->peer_ref->name);
- ret = -2;
- continue;
- }
- }
- memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
- if (is_zero_sha1(ref->new_sha1)) {
- error("cannot happen anymore");
- ret = -3;
- continue;
- }
- new_refs++;
- strcpy(old_hex, sha1_to_hex(ref->old_sha1));
- new_hex = sha1_to_hex(ref->new_sha1);
-
- if (ask_for_status_report) {
- packet_write(out, "%s %s %s%c%s",
- old_hex, new_hex, ref->name, 0,
- "report-status");
- ask_for_status_report = 0;
- expect_status_report = 1;
- }
- else
- packet_write(out, "%s %s %s",
- old_hex, new_hex, ref->name);
- fprintf(stderr, "updating '%s'", ref->name);
- if (strcmp(ref->name, ref->peer_ref->name))
- fprintf(stderr, " using '%s'", ref->peer_ref->name);
- fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
- }
-
- packet_flush(out);
- if (new_refs)
- pack_objects(out, remote_refs);
- close(out);
-
- if (expect_status_report) {
- if (receive_status(in))
- ret = -4;
- }
-
- if (!new_refs && ret == 0)
- fprintf(stderr, "Everything up-to-date\n");
- return ret;
-}
-
-
-int main(int argc, char **argv)
-{
- int i, nr_heads = 0;
- char *dest = NULL;
- char **heads = NULL;
- int fd[2], ret;
- pid_t pid;
-
- setup_git_directory();
- 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;
- }
- if (!strcmp(arg, "--verbose")) {
- verbose = 1;
- continue;
- }
- if (!strcmp(arg, "--thin")) {
- use_thin_pack = 1;
- continue;
- }
- usage(send_pack_usage);
- }
- if (!dest) {
- dest = arg;
- continue;
- }
- heads = argv;
- 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;
- ret = send_pack(fd[0], fd[1], nr_heads, heads);
- close(fd[0]);
- close(fd[1]);
- finish_connect(pid);
- return ret;
-}
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