]>
git.ipfire.org Git - thirdparty/git.git/blob - builtin-upload-archive.c
2 * Copyright (c) 2006 Franck Bui-Huu
13 static const char upload_archive_usage
[] =
14 "git-upload-archive <repo>";
16 static const char deadchild
[] =
17 "git-upload-archive: archiver died with error";
20 static int run_upload_archive(int argc
, const char **argv
, const char *prefix
)
23 const char *sent_argv
[MAX_ARGS
];
24 const char *arg_cmd
= "argument ";
31 usage(upload_archive_usage
);
33 if (strlen(argv
[1]) > sizeof(buf
))
34 die("insanely long repository name");
36 strcpy(buf
, argv
[1]); /* enter-repo smudges its argument */
38 if (!enter_repo(buf
, 0))
39 die("not a git archive");
41 /* put received options in sent_argv[] */
43 sent_argv
[0] = "git-upload-archive";
45 /* This will die if not enough free space in buf */
46 len
= packet_read_line(0, p
, (buf
+ sizeof buf
) - p
);
48 break; /* got a flush */
49 if (sent_argc
> MAX_ARGS
- 2)
50 die("Too many options (>29)");
52 if (p
[len
-1] == '\n') {
55 if (len
< strlen(arg_cmd
) ||
56 strncmp(arg_cmd
, p
, strlen(arg_cmd
)))
57 die("'argument' token or flush expected");
59 len
-= strlen(arg_cmd
);
60 memmove(p
, p
+ strlen(arg_cmd
), len
);
61 sent_argv
[sent_argc
++] = p
;
65 sent_argv
[sent_argc
] = NULL
;
67 /* parse all options sent by the client */
68 treeish_idx
= parse_archive_args(sent_argc
, sent_argv
, &ar
);
70 parse_treeish_arg(sent_argv
+ treeish_idx
, &ar
.args
, prefix
);
71 parse_pathspec_arg(sent_argv
+ treeish_idx
+ 1, &ar
.args
);
73 return ar
.write_archive(&ar
.args
);
76 int cmd_upload_archive(int argc
, const char **argv
, const char *prefix
)
81 * Set up sideband subprocess.
83 * We (parent) monitor and read from child, sending its fd#1 and fd#2
84 * multiplexed out to our fd#1. If the child dies, we tell the other
85 * end over channel #3.
87 if (pipe(fd1
) < 0 || pipe(fd2
) < 0) {
89 packet_write(1, "NACK pipe failed on the remote side\n");
90 die("upload-archive: %s", strerror(err
));
95 packet_write(1, "NACK fork failed on the remote side\n");
96 die("upload-archive: %s", strerror(err
));
99 /* child - connect fd#1 and fd#2 to the pipe */
102 close(fd1
[1]); close(fd2
[1]);
103 close(fd1
[0]); close(fd2
[0]); /* we do not read from pipe */
105 exit(run_upload_archive(argc
, argv
, prefix
));
108 /* parent - read from child, multiplex and send out to fd#1 */
109 close(fd1
[1]); close(fd2
[1]); /* we do not write to pipe */
110 packet_write(1, "ACK\n");
114 struct pollfd pfd
[2];
121 pfd
[0].events
= POLLIN
;
123 pfd
[1].events
= POLLIN
;
124 if (poll(pfd
, 2, -1) < 0) {
125 if (errno
!= EINTR
) {
126 error("poll failed resuming: %s",
132 if (pfd
[0].revents
& (POLLIN
|POLLHUP
)) {
133 /* Data stream ready */
134 sz
= read(pfd
[0].fd
, buf
, sizeof(buf
));
135 send_sideband(1, 1, buf
, sz
, LARGE_PACKET_MAX
);
137 if (pfd
[1].revents
& (POLLIN
|POLLHUP
)) {
138 /* Status stream ready */
139 sz
= read(pfd
[1].fd
, buf
, sizeof(buf
));
140 send_sideband(1, 2, buf
, sz
, LARGE_PACKET_MAX
);
143 if (((pfd
[0].revents
| pfd
[1].revents
) & POLLHUP
) == 0)
146 pid
= waitpid(writer
, &status
, WNOHANG
);
148 fprintf(stderr
, "Hmph, HUP?\n");
151 if (!WIFEXITED(status
) || WEXITSTATUS(status
) > 0)
152 send_sideband(1, 3, deadchild
, strlen(deadchild
),