blob: 73971d0dd20e7233d6cb1e6c16986ede25526939 [file] [log] [blame]
* Copyright (c) 2006 Franck Bui-Huu
* Copyright (c) 2006 Rene Scharfe
#include "cache.h"
#include "builtin.h"
#include "archive.h"
#include "transport.h"
#include "parse-options.h"
#include "pkt-line.h"
#include "sideband.h"
static void create_output_file(const char *output_file)
int output_fd = open(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
if (output_fd < 0)
die_errno(_("could not create archive file '%s'"), output_file);
if (output_fd != 1) {
if (dup2(output_fd, 1) < 0)
die_errno(_("could not redirect output"));
static int run_remote_archiver(int argc, const char **argv,
const char *remote, const char *exec,
const char *name_hint)
char *buf;
int fd[2], i, rv;
struct transport *transport;
struct remote *_remote;
_remote = remote_get(remote);
if (!_remote->url[0])
die(_("git archive: Remote with no URL"));
transport = transport_get(_remote, _remote->url[0]);
transport_connect(transport, "git-upload-archive", exec, fd);
* Inject a fake --format field at the beginning of the
* arguments, with the format inferred from our output
* filename. This way explicit --format options can override
* it.
if (name_hint) {
const char *format = archive_format_from_filename(name_hint);
if (format)
packet_write_fmt(fd[1], "argument --format=%s\n", format);
for (i = 1; i < argc; i++)
packet_write_fmt(fd[1], "argument %s\n", argv[i]);
buf = packet_read_line(fd[0], NULL);
if (!buf)
die(_("git archive: expected ACK/NAK, got a flush packet"));
if (strcmp(buf, "ACK")) {
if (starts_with(buf, "NACK "))
die(_("git archive: NACK %s"), buf + 5);
if (starts_with(buf, "ERR "))
die(_("remote error: %s"), buf + 4);
die(_("git archive: protocol error"));
if (packet_read_line(fd[0], NULL))
die(_("git archive: expected a flush"));
/* Now, start reading from fd[0] and spit it out to stdout */
rv = recv_sideband("archive", fd[0], 1);
rv |= transport_disconnect(transport);
return !!rv;
int cmd_archive(int argc, const char **argv, const char *prefix)
const char *exec = "git-upload-archive";
const char *output = NULL;
const char *remote = NULL;
struct option local_opts[] = {
OPT_FILENAME('o', "output", &output,
N_("write the archive to this file")),
OPT_STRING(0, "remote", &remote, N_("repo"),
N_("retrieve the archive from remote repository <repo>")),
OPT_STRING(0, "exec", &exec, N_("command"),
N_("path to the remote git-upload-archive command")),
argc = parse_options(argc, argv, prefix, local_opts, NULL,
if (output)
if (remote)
return run_remote_archiver(argc, argv, remote, exec, output);
setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
return write_archive(argc, argv, prefix, output, 0);