| 1 | /* |
| 2 | * Copyright (c) 2006 Franck Bui-Huu |
| 3 | * Copyright (c) 2006 Rene Scharfe |
| 4 | */ |
| 5 | #include "builtin.h" |
| 6 | #include "archive.h" |
| 7 | #include "gettext.h" |
| 8 | #include "transport.h" |
| 9 | #include "parse-options.h" |
| 10 | #include "pkt-line.h" |
| 11 | |
| 12 | static void create_output_file(const char *output_file) |
| 13 | { |
| 14 | int output_fd = xopen(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666); |
| 15 | if (output_fd != 1) { |
| 16 | if (dup2(output_fd, 1) < 0) |
| 17 | die_errno(_("could not redirect output")); |
| 18 | else |
| 19 | close(output_fd); |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | static int run_remote_archiver(int argc, const char **argv, |
| 24 | const char *remote, const char *exec, |
| 25 | const char *name_hint) |
| 26 | { |
| 27 | int fd[2], i, rv; |
| 28 | struct transport *transport; |
| 29 | struct remote *_remote; |
| 30 | struct packet_reader reader; |
| 31 | |
| 32 | _remote = remote_get(remote); |
| 33 | transport = transport_get(_remote, _remote->url.v[0]); |
| 34 | transport_connect(transport, GIT_CONNECT_UPLOAD_ARCHIVE, exec, fd); |
| 35 | |
| 36 | /* |
| 37 | * Inject a fake --format field at the beginning of the |
| 38 | * arguments, with the format inferred from our output |
| 39 | * filename. This way explicit --format options can override |
| 40 | * it. |
| 41 | */ |
| 42 | if (name_hint) { |
| 43 | const char *format = archive_format_from_filename(name_hint); |
| 44 | if (format) |
| 45 | packet_write_fmt(fd[1], "argument --format=%s\n", format); |
| 46 | } |
| 47 | for (i = 1; i < argc; i++) |
| 48 | packet_write_fmt(fd[1], "argument %s\n", argv[i]); |
| 49 | packet_flush(fd[1]); |
| 50 | |
| 51 | packet_reader_init(&reader, fd[0], NULL, 0, |
| 52 | PACKET_READ_CHOMP_NEWLINE | |
| 53 | PACKET_READ_DIE_ON_ERR_PACKET); |
| 54 | |
| 55 | if (packet_reader_read(&reader) != PACKET_READ_NORMAL) |
| 56 | die(_("git archive: expected ACK/NAK, got a flush packet")); |
| 57 | if (strcmp(reader.line, "ACK")) { |
| 58 | if (starts_with(reader.line, "NACK ")) |
| 59 | die(_("git archive: NACK %s"), reader.line + 5); |
| 60 | die(_("git archive: protocol error")); |
| 61 | } |
| 62 | |
| 63 | if (packet_reader_read(&reader) != PACKET_READ_FLUSH) |
| 64 | die(_("git archive: expected a flush")); |
| 65 | |
| 66 | /* Now, start reading from fd[0] and spit it out to stdout */ |
| 67 | rv = recv_sideband("archive", fd[0], 1); |
| 68 | rv |= transport_disconnect(transport); |
| 69 | |
| 70 | return !!rv; |
| 71 | } |
| 72 | |
| 73 | #define PARSE_OPT_KEEP_ALL ( PARSE_OPT_KEEP_DASHDASH | \ |
| 74 | PARSE_OPT_KEEP_ARGV0 | \ |
| 75 | PARSE_OPT_KEEP_UNKNOWN_OPT | \ |
| 76 | PARSE_OPT_NO_INTERNAL_HELP ) |
| 77 | |
| 78 | int cmd_archive(int argc, |
| 79 | const char **argv, |
| 80 | const char *prefix, |
| 81 | struct repository *repo) |
| 82 | { |
| 83 | const char *exec = "git-upload-archive"; |
| 84 | char *output = NULL; |
| 85 | const char *remote = NULL; |
| 86 | struct option local_opts[] = { |
| 87 | OPT_FILENAME('o', "output", &output, |
| 88 | N_("write the archive to this file")), |
| 89 | OPT_STRING(0, "remote", &remote, N_("repo"), |
| 90 | N_("retrieve the archive from remote repository <repo>")), |
| 91 | OPT_STRING(0, "exec", &exec, N_("command"), |
| 92 | N_("path to the remote git-upload-archive command")), |
| 93 | OPT_END() |
| 94 | }; |
| 95 | int ret; |
| 96 | |
| 97 | argc = parse_options(argc, argv, prefix, local_opts, NULL, |
| 98 | PARSE_OPT_KEEP_ALL); |
| 99 | |
| 100 | init_archivers(); |
| 101 | |
| 102 | if (output) |
| 103 | create_output_file(output); |
| 104 | |
| 105 | if (remote) { |
| 106 | ret = run_remote_archiver(argc, argv, remote, exec, output); |
| 107 | goto out; |
| 108 | } |
| 109 | |
| 110 | setvbuf(stderr, NULL, _IOLBF, BUFSIZ); |
| 111 | |
| 112 | ret = write_archive(argc, argv, prefix, repo, output, 0); |
| 113 | |
| 114 | out: |
| 115 | free(output); |
| 116 | return ret; |
| 117 | } |