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Commit | Line | Data |
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4df096a5 FBH |
1 | /* |
2 | * Copyright (c) 2006 Franck Bui-Huu | |
3 | * Copyright (c) 2006 Rene Scharfe | |
4 | */ | |
4df096a5 FBH |
5 | #include "cache.h" |
6 | #include "builtin.h" | |
7 | #include "archive.h" | |
52e77876 | 8 | #include "parse-options.h" |
4df096a5 | 9 | #include "pkt-line.h" |
23d6d112 | 10 | #include "sideband.h" |
4df096a5 | 11 | |
52e77876 RS |
12 | static void create_output_file(const char *output_file) |
13 | { | |
14 | int output_fd = open(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666); | |
15 | if (output_fd < 0) | |
0721c314 | 16 | die_errno("could not create archive file '%s'", output_file); |
52e77876 RS |
17 | if (output_fd != 1) { |
18 | if (dup2(output_fd, 1) < 0) | |
0721c314 | 19 | die_errno("could not redirect output"); |
52e77876 RS |
20 | else |
21 | close(output_fd); | |
22 | } | |
23 | } | |
24 | ||
25 | static int run_remote_archiver(int argc, const char **argv, | |
26 | const char *remote, const char *exec) | |
4df096a5 | 27 | { |
23d6d112 | 28 | char *url, buf[LARGE_PACKET_MAX]; |
4df096a5 | 29 | int fd[2], i, len, rv; |
98158e9c | 30 | struct child_process *conn; |
4df096a5 | 31 | |
37f94436 | 32 | url = xstrdup(remote); |
98158e9c | 33 | conn = git_connect(fd, url, exec, 0); |
4df096a5 | 34 | |
52e77876 | 35 | for (i = 1; i < argc; i++) |
4df096a5 | 36 | packet_write(fd[1], "argument %s\n", argv[i]); |
4df096a5 FBH |
37 | packet_flush(fd[1]); |
38 | ||
39 | len = packet_read_line(fd[0], buf, sizeof(buf)); | |
40 | if (!len) | |
34baebce | 41 | die("git archive: expected ACK/NAK, got EOF"); |
4df096a5 FBH |
42 | if (buf[len-1] == '\n') |
43 | buf[--len] = 0; | |
44 | if (strcmp(buf, "ACK")) { | |
cc44c765 | 45 | if (len > 5 && !prefixcmp(buf, "NACK ")) |
34baebce HO |
46 | die("git archive: NACK %s", buf + 5); |
47 | die("git archive: protocol error"); | |
4df096a5 FBH |
48 | } |
49 | ||
50 | len = packet_read_line(fd[0], buf, sizeof(buf)); | |
51 | if (len) | |
34baebce | 52 | die("git archive: expected a flush"); |
4df096a5 FBH |
53 | |
54 | /* Now, start reading from fd[0] and spit it out to stdout */ | |
34df8aba | 55 | rv = recv_sideband("archive", fd[0], 1); |
4df096a5 | 56 | close(fd[0]); |
ec587fde | 57 | close(fd[1]); |
98158e9c | 58 | rv |= finish_connect(conn); |
4df096a5 FBH |
59 | |
60 | return !!rv; | |
61 | } | |
62 | ||
0f4b377c DP |
63 | static const char *format_from_name(const char *filename) |
64 | { | |
65 | const char *ext = strrchr(filename, '.'); | |
66 | if (!ext) | |
67 | return NULL; | |
68 | ext++; | |
69 | if (!strcasecmp(ext, "zip")) | |
70 | return "zip"; | |
71 | return NULL; | |
72 | } | |
73 | ||
52e77876 RS |
74 | #define PARSE_OPT_KEEP_ALL ( PARSE_OPT_KEEP_DASHDASH | \ |
75 | PARSE_OPT_KEEP_ARGV0 | \ | |
76 | PARSE_OPT_KEEP_UNKNOWN | \ | |
77 | PARSE_OPT_NO_INTERNAL_HELP ) | |
37f94436 | 78 | |
4df096a5 FBH |
79 | int cmd_archive(int argc, const char **argv, const char *prefix) |
80 | { | |
52e77876 RS |
81 | const char *exec = "git-upload-archive"; |
82 | const char *output = NULL; | |
37f94436 | 83 | const char *remote = NULL; |
0f4b377c | 84 | const char *format = NULL; |
52e77876 | 85 | struct option local_opts[] = { |
05d3951e | 86 | OPT_STRING('o', "output", &output, "file", |
52e77876 RS |
87 | "write the archive to this file"), |
88 | OPT_STRING(0, "remote", &remote, "repo", | |
89 | "retrieve the archive from remote repository <repo>"), | |
90 | OPT_STRING(0, "exec", &exec, "cmd", | |
91 | "path to the remote git-upload-archive command"), | |
0f4b377c | 92 | OPT_STRING(0, "format", &format, "fmt", "archive format"), |
52e77876 RS |
93 | OPT_END() |
94 | }; | |
0f4b377c | 95 | char fmt_opt[32]; |
52e77876 | 96 | |
37782920 SB |
97 | argc = parse_options(argc, argv, prefix, local_opts, NULL, |
98 | PARSE_OPT_KEEP_ALL); | |
52e77876 | 99 | |
0f4b377c | 100 | if (output) { |
52e77876 | 101 | create_output_file(output); |
0f4b377c DP |
102 | if (!format) |
103 | format = format_from_name(output); | |
104 | } | |
105 | ||
106 | if (format) { | |
107 | sprintf(fmt_opt, "--format=%s", format); | |
108 | /* | |
109 | * This is safe because either --format and/or --output must | |
110 | * have been given on the original command line if we get to | |
111 | * this point, and parse_options() must have eaten at least | |
112 | * one argument, i.e. we have enough room to append to argv[]. | |
113 | */ | |
114 | argv[argc++] = fmt_opt; | |
115 | argv[argc] = NULL; | |
116 | } | |
4df096a5 | 117 | |
37f94436 | 118 | if (remote) |
52e77876 | 119 | return run_remote_archiver(argc, argv, remote, exec); |
4df096a5 | 120 | |
aa909861 | 121 | setvbuf(stderr, NULL, _IOLBF, BUFSIZ); |
8142f603 | 122 | |
6e94e683 | 123 | return write_archive(argc, argv, prefix, 1); |
4df096a5 | 124 | } |