2 * Copyright (c) 2006 Franck Bui-Huu
4 #define USE_THE_REPOSITORY_VARIABLE
10 #include "run-command.h"
13 static const char upload_archive_usage
[] =
14 "git upload-archive <repository>";
16 static const char deadchild
[] =
17 "git upload-archive: archiver died with error";
21 int cmd_upload_archive_writer(int argc
,
24 struct repository
*repo UNUSED
)
26 struct strvec sent_argv
= STRVEC_INIT
;
27 const char *arg_cmd
= "argument ";
30 if (argc
!= 2 || !strcmp(argv
[1], "-h"))
31 usage(upload_archive_usage
);
33 if (!enter_repo(argv
[1], 0))
34 die("'%s' does not appear to be a git repository", argv
[1]);
38 /* put received options in sent_argv[] */
39 strvec_push(&sent_argv
, "git-upload-archive");
41 char *buf
= packet_read_line(0, NULL
);
43 break; /* got a flush */
44 if (sent_argv
.nr
> MAX_ARGS
)
45 die("Too many options (>%d)", MAX_ARGS
- 1);
47 if (!starts_with(buf
, arg_cmd
))
48 die("'argument' token or flush expected");
49 strvec_push(&sent_argv
, buf
+ strlen(arg_cmd
));
52 /* parse all options sent by the client */
53 ret
= write_archive(sent_argv
.nr
, sent_argv
.v
, prefix
,
54 the_repository
, NULL
, 1);
56 strvec_clear(&sent_argv
);
60 __attribute__((format (printf
, 1, 2)))
61 static void error_clnt(const char *fmt
, ...)
63 struct strbuf buf
= STRBUF_INIT
;
66 va_start(params
, fmt
);
67 strbuf_vaddf(&buf
, fmt
, params
);
69 send_sideband(1, 3, buf
.buf
, buf
.len
, LARGE_PACKET_MAX
);
70 die("sent error to the client: %s", buf
.buf
);
73 static ssize_t
process_input(int child_fd
, int band
)
76 ssize_t sz
= read(child_fd
, buf
, sizeof(buf
));
78 if (errno
!= EAGAIN
&& errno
!= EINTR
)
79 error_clnt("read error: %s\n", strerror(errno
));
82 send_sideband(1, band
, buf
, sz
, LARGE_PACKET_MAX
);
86 int cmd_upload_archive(int argc
,
89 struct repository
*repo UNUSED
)
91 struct child_process writer
= CHILD_PROCESS_INIT
;
93 BUG_ON_NON_EMPTY_PREFIX(prefix
);
95 if (argc
== 2 && !strcmp(argv
[1], "-h"))
96 usage(upload_archive_usage
);
99 * Set up sideband subprocess.
101 * We (parent) monitor and read from child, sending its fd#1 and fd#2
102 * multiplexed out to our fd#1. If the child dies, we tell the other
103 * end over channel #3.
105 writer
.out
= writer
.err
= -1;
107 strvec_push(&writer
.args
, "upload-archive--writer");
108 strvec_pushv(&writer
.args
, argv
+ 1);
109 if (start_command(&writer
)) {
111 packet_write_fmt(1, "NACK unable to spawn subprocess\n");
112 die("upload-archive: %s", strerror(err
));
115 packet_write_fmt(1, "ACK\n");
119 struct pollfd pfd
[2];
121 pfd
[0].fd
= writer
.out
;
122 pfd
[0].events
= POLLIN
;
123 pfd
[1].fd
= writer
.err
;
124 pfd
[1].events
= POLLIN
;
125 if (poll(pfd
, 2, -1) < 0) {
126 if (errno
!= EINTR
) {
127 error_errno("poll failed resuming");
132 if (pfd
[1].revents
& POLLIN
)
133 /* Status stream ready */
134 if (process_input(pfd
[1].fd
, 2))
136 if (pfd
[0].revents
& POLLIN
)
137 /* Data stream ready */
138 if (process_input(pfd
[0].fd
, 1))
141 if (finish_command(&writer
))
142 error_clnt("%s", deadchild
);