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#include "cache.h"
#include "commit.h"
#include "rsh.h"
#include "pull.h"
#include "refs.h"
static int fd_in;
static int fd_out;
static unsigned char remote_version = 0;
static unsigned char local_version = 1;
int fetch(unsigned char *sha1)
{
int ret;
signed char remote;
char type = 'o';
if (has_sha1_file(sha1))
return 0;
write(fd_out, &type, 1);
write(fd_out, sha1, 20);
if (read(fd_in, &remote, 1) < 1)
return -1;
if (remote < 0)
return remote;
ret = write_sha1_from_fd(sha1, fd_in);
if (!ret)
pull_say("got %s\n", sha1_to_hex(sha1));
return ret;
}
int get_version(void)
{
char type = 'v';
write(fd_out, &type, 1);
write(fd_out, &local_version, 1);
if (read(fd_in, &remote_version, 1) < 1) {
return error("Couldn't read version from remote end");
}
return 0;
}
int fetch_ref(char *ref, unsigned char *sha1)
{
signed char remote;
char type = 'r';
write(fd_out, &type, 1);
write(fd_out, ref, strlen(ref) + 1);
read(fd_in, &remote, 1);
if (remote < 0)
return remote;
read(fd_in, sha1, 20);
return 0;
}
int main(int argc, char **argv)
{
char *commit_id;
char *url;
int arg = 1;
const char *prog = getenv("GIT_SSH_PUSH") ? : "git-ssh-push";
while (arg < argc && argv[arg][0] == '-') {
if (argv[arg][1] == 't') {
get_tree = 1;
} else if (argv[arg][1] == 'c') {
get_history = 1;
} else if (argv[arg][1] == 'a') {
get_all = 1;
get_tree = 1;
get_history = 1;
} else if (argv[arg][1] == 'v') {
get_verbosely = 1;
} else if (argv[arg][1] == 'w') {
write_ref = argv[arg + 1];
arg++;
}
arg++;
}
if (argc < arg + 2) {
usage("git-ssh-pull [-c] [-t] [-a] [-v] [-d] [--recover] [-w ref] commit-id url");
return 1;
}
commit_id = argv[arg];
url = argv[arg + 1];
if (setup_connection(&fd_in, &fd_out, prog, url, arg, argv + 1))
return 1;
if (get_version())
return 1;
if (pull(commit_id))
return 1;
return 0;
}
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