diff options
Diffstat (limited to 'clone-pack.c')
| -rw-r--r-- | clone-pack.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/clone-pack.c b/clone-pack.c deleted file mode 100644 index a4370f5..0000000 --- a/clone-pack.c +++ /dev/null @@ -1,186 +0,0 @@ -#include "cache.h" -#include "refs.h" -#include "pkt-line.h" - -static const char clone_pack_usage[] = -"git-clone-pack [--exec=<git-upload-pack>] [<host>:]<directory> [<heads>]*"; -static const char *exec = "git-upload-pack"; - -static int quiet = 0; - -static void clone_handshake(int fd[2], struct ref *ref) -{ - unsigned char sha1[20]; - - while (ref) { - packet_write(fd[1], "want %s\n", sha1_to_hex(ref->old_sha1)); - ref = ref->next; - } - packet_flush(fd[1]); - - /* We don't have nuttin' */ - packet_write(fd[1], "done\n"); - if (get_ack(fd[0], sha1)) - error("Huh! git-clone-pack got positive ack for %s", sha1_to_hex(sha1)); -} - -static int is_master(struct ref *ref) -{ - return !strcmp(ref->name, "refs/heads/master"); -} - -static void write_one_ref(struct ref *ref) -{ - char *path = git_path("%s", ref->name); - int fd; - char *hex; - - if (!strncmp(ref->name, "refs/", 5) && - check_ref_format(ref->name + 5)) { - error("refusing to create funny ref '%s' locally", ref->name); - return; - } - - if (safe_create_leading_directories(path)) - die("unable to create leading directory for %s", ref->name); - fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0666); - if (fd < 0) - die("unable to create ref %s", ref->name); - hex = sha1_to_hex(ref->old_sha1); - hex[40] = '\n'; - if (write(fd, hex, 41) != 41) - die("unable to write ref %s", ref->name); - close(fd); -} - -static void write_refs(struct ref *ref) -{ - struct ref *head = NULL, *head_ptr, *master_ref; - char *head_path; - - /* Upload-pack must report HEAD first */ - if (!strcmp(ref->name, "HEAD")) { - head = ref; - ref = ref->next; - } - head_ptr = NULL; - master_ref = NULL; - while (ref) { - if (is_master(ref)) - master_ref = ref; - if (head && - !memcmp(ref->old_sha1, head->old_sha1, 20) && - !strncmp(ref->name, "refs/heads/",11) && - (!head_ptr || ref == master_ref)) - head_ptr = ref; - - write_one_ref(ref); - ref = ref->next; - } - if (!head) { - fprintf(stderr, "No HEAD in remote.\n"); - return; - } - - head_path = strdup(git_path("HEAD")); - if (!head_ptr) { - /* - * If we had a master ref, and it wasn't HEAD, we need to undo the - * symlink, and write a standalone HEAD. Give a warning, because that's - * really really wrong. - */ - if (master_ref) { - error("HEAD doesn't point to any refs! Making standalone HEAD"); - unlink(head_path); - } - write_one_ref(head); - free(head_path); - return; - } - - /* We reset to the master branch if it's available */ - if (master_ref) - return; - - fprintf(stderr, "Setting HEAD to %s\n", head_ptr->name); - - /* - * Uhhuh. Other end didn't have master. We start HEAD off with - * the first branch with the same value. - */ - if (create_symref(head_path, head_ptr->name) < 0) - die("unable to link HEAD to %s", head_ptr->name); - free(head_path); -} - -static int clone_pack(int fd[2], int nr_match, char **match) -{ - struct ref *refs; - int status; - - get_remote_heads(fd[0], &refs, nr_match, match, 1); - if (!refs) { - packet_flush(fd[1]); - die("no matching remote head"); - } - clone_handshake(fd, refs); - - status = receive_keep_pack(fd, "git-clone-pack", quiet); - if (!quiet) - fprintf(stderr, "\n"); - - if (!status) { - if (nr_match == 0) - write_refs(refs); - else - while (refs) { - printf("%s %s\n", - sha1_to_hex(refs->old_sha1), - refs->name); - refs = refs->next; - } - } - return status; -} - -int main(int argc, char **argv) -{ - int i, ret, nr_heads; - char *dest = NULL, **heads; - int fd[2]; - pid_t pid; - - setup_git_directory(); - - nr_heads = 0; - heads = NULL; - for (i = 1; i < argc; i++) { - char *arg = argv[i]; - - if (*arg == '-') { - if (!strcmp("-q", arg)) { - quiet = 1; - continue; - } - if (!strncmp("--exec=", arg, 7)) { - exec = arg + 7; - continue; - } - usage(clone_pack_usage); - } - dest = arg; - heads = argv + i + 1; - nr_heads = argc - i - 1; - break; - } - if (!dest) - usage(clone_pack_usage); - pid = git_connect(fd, dest, exec); - if (pid < 0) - return 1; - ret = clone_pack(fd, nr_heads, heads); - close(fd[0]); - close(fd[1]); - finish_connect(pid); - return ret; -} |