2 * Copyright (c) 2006 Franck Bui-Huu
3 * Copyright (c) 2006 Rene Scharfe
10 #include "tree-walk.h"
14 static const char archive_usage
[] = \
15 "git-archive --format=<fmt> [--prefix=<prefix>/] [<extra>] <tree-ish> [path...]";
17 struct archiver archivers
[] = {
18 { .name
= "tar", .write_archive
= write_tar_archive
},
19 { .name
= "zip", .write_archive
= write_zip_archive
},
22 static int run_remote_archiver(struct archiver
*ar
, int argc
,
26 int fd
[2], i
, len
, rv
;
29 sprintf(buf
, "git-upload-archive");
31 url
= xstrdup(ar
->remote
);
32 pid
= git_connect(fd
, url
, buf
);
36 for (i
= 1; i
< argc
; i
++) {
37 if (!strncmp(argv
[i
], "--remote=", 9))
39 packet_write(fd
[1], "argument %s\n", argv
[i
]);
43 len
= packet_read_line(fd
[0], buf
, sizeof(buf
));
45 die("git-archive: expected ACK/NAK, got EOF");
46 if (buf
[len
-1] == '\n')
48 if (strcmp(buf
, "ACK")) {
49 if (len
> 5 && !strncmp(buf
, "NACK ", 5))
50 die("git-archive: NACK %s", buf
+ 5);
51 die("git-archive: protocol error");
54 len
= packet_read_line(fd
[0], buf
, sizeof(buf
));
56 die("git-archive: expected a flush");
58 /* Now, start reading from fd[0] and spit it out to stdout */
59 rv
= copy_fd(fd
[0], 1);
62 rv
|= finish_connect(pid
);
67 static int init_archiver(const char *name
, struct archiver
*ar
)
71 for (i
= 0; i
< ARRAY_SIZE(archivers
); i
++) {
72 if (!strcmp(name
, archivers
[i
].name
)) {
73 memcpy(ar
, &archivers
[i
], sizeof(struct archiver
));
81 void parse_pathspec_arg(const char **pathspec
, struct archiver_args
*ar_args
)
83 ar_args
->pathspec
= get_pathspec(ar_args
->base
, pathspec
);
86 void parse_treeish_arg(const char **argv
, struct archiver_args
*ar_args
,
89 const char *name
= argv
[0];
90 const unsigned char *commit_sha1
;
93 struct commit
*commit
;
94 unsigned char sha1
[20];
96 if (get_sha1(name
, sha1
))
97 die("Not a valid object name");
99 commit
= lookup_commit_reference_gently(sha1
, 1);
101 commit_sha1
= commit
->object
.sha1
;
102 archive_time
= commit
->date
;
105 archive_time
= time(NULL
);
108 tree
= parse_tree_indirect(sha1
);
110 die("not a tree object");
113 unsigned char tree_sha1
[20];
117 err
= get_tree_entry(tree
->object
.sha1
, prefix
,
119 if (err
|| !S_ISDIR(mode
))
120 die("current working directory is untracked");
123 tree
= parse_tree_indirect(tree_sha1
);
125 ar_args
->tree
= tree
;
126 ar_args
->commit_sha1
= commit_sha1
;
127 ar_args
->time
= archive_time
;
130 static const char *default_parse_extra(struct archiver
*ar
,
135 snprintf(msg
, sizeof(msg
) - 4, "'%s' format does not handle %s",
138 return strcat(msg
, "...");
141 int parse_archive_args(int argc
, const char **argv
, struct archiver
*ar
)
143 const char *extra_argv
[MAX_EXTRA_ARGS
];
145 const char *format
= NULL
; /* might want to default to "tar" */
146 const char *remote
= NULL
;
147 const char *base
= "";
151 for (i
= 1; i
< argc
; i
++) {
152 const char *arg
= argv
[i
];
154 if (!strcmp(arg
, "--list") || !strcmp(arg
, "-l")) {
158 if (!strncmp(arg
, "--format=", 9)) {
162 if (!strncmp(arg
, "--prefix=", 9)) {
166 if (!strncmp(arg
, "--remote=", 9)) {
170 if (!strcmp(arg
, "--")) {
175 if (extra_argc
> MAX_EXTRA_ARGS
- 1)
176 die("Too many extra options");
177 extra_argv
[extra_argc
++] = arg
;
185 for (i
= 0; i
< ARRAY_SIZE(archivers
); i
++)
186 printf("%s\n", archivers
[i
].name
);
189 die("--list and --remote are mutually exclusive");
193 usage(archive_usage
);
195 die("You must specify an archive format");
196 if (init_archiver(format
, ar
) < 0)
197 die("Unknown archive format '%s'", format
);
199 if (extra_argc
&& !remote
) {
200 if (!ar
->parse_extra
) {
201 die("%s", default_parse_extra(ar
, extra_argv
));
203 ar
->args
.extra
= ar
->parse_extra(extra_argc
, extra_argv
);
206 ar
->args
.base
= base
;
211 int cmd_archive(int argc
, const char **argv
, const char *prefix
)
216 tree_idx
= parse_archive_args(argc
, argv
, &ar
);
219 return run_remote_archiver(&ar
, argc
, argv
);
222 prefix
= setup_git_directory();
225 parse_treeish_arg(argv
, &ar
.args
, prefix
);
226 parse_pathspec_arg(argv
+ 1, &ar
.args
);
228 return ar
.write_archive(&ar
.args
);