]>
git.ipfire.org Git - thirdparty/git.git/blob - builtin-archive.c
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
[] = {
20 .write_archive
= write_tar_archive
,
24 .write_archive
= write_zip_archive
,
25 .parse_extra
= parse_extra_zip_args
,
29 static int run_remote_archiver(struct archiver
*ar
, int argc
,
33 int fd
[2], i
, len
, rv
;
36 sprintf(buf
, "git-upload-archive");
38 url
= xstrdup(ar
->remote
);
39 pid
= git_connect(fd
, url
, buf
);
43 for (i
= 1; i
< argc
; i
++) {
44 if (!strncmp(argv
[i
], "--remote=", 9))
46 packet_write(fd
[1], "argument %s\n", argv
[i
]);
50 len
= packet_read_line(fd
[0], buf
, sizeof(buf
));
52 die("git-archive: expected ACK/NAK, got EOF");
53 if (buf
[len
-1] == '\n')
55 if (strcmp(buf
, "ACK")) {
56 if (len
> 5 && !strncmp(buf
, "NACK ", 5))
57 die("git-archive: NACK %s", buf
+ 5);
58 die("git-archive: protocol error");
61 len
= packet_read_line(fd
[0], buf
, sizeof(buf
));
63 die("git-archive: expected a flush");
65 /* Now, start reading from fd[0] and spit it out to stdout */
66 rv
= copy_fd(fd
[0], 1);
69 rv
|= finish_connect(pid
);
74 static int init_archiver(const char *name
, struct archiver
*ar
)
78 for (i
= 0; i
< ARRAY_SIZE(archivers
); i
++) {
79 if (!strcmp(name
, archivers
[i
].name
)) {
80 memcpy(ar
, &archivers
[i
], sizeof(struct archiver
));
88 void parse_pathspec_arg(const char **pathspec
, struct archiver_args
*ar_args
)
90 ar_args
->pathspec
= get_pathspec(ar_args
->base
, pathspec
);
93 void parse_treeish_arg(const char **argv
, struct archiver_args
*ar_args
,
96 const char *name
= argv
[0];
97 const unsigned char *commit_sha1
;
100 struct commit
*commit
;
101 unsigned char sha1
[20];
103 if (get_sha1(name
, sha1
))
104 die("Not a valid object name");
106 commit
= lookup_commit_reference_gently(sha1
, 1);
108 commit_sha1
= commit
->object
.sha1
;
109 archive_time
= commit
->date
;
112 archive_time
= time(NULL
);
115 tree
= parse_tree_indirect(sha1
);
117 die("not a tree object");
120 unsigned char tree_sha1
[20];
124 err
= get_tree_entry(tree
->object
.sha1
, prefix
,
126 if (err
|| !S_ISDIR(mode
))
127 die("current working directory is untracked");
130 tree
= parse_tree_indirect(tree_sha1
);
132 ar_args
->tree
= tree
;
133 ar_args
->commit_sha1
= commit_sha1
;
134 ar_args
->time
= archive_time
;
137 static const char *default_parse_extra(struct archiver
*ar
,
142 snprintf(msg
, sizeof(msg
) - 4, "'%s' format does not handle %s",
145 return strcat(msg
, "...");
148 int parse_archive_args(int argc
, const char **argv
, struct archiver
*ar
)
150 const char *extra_argv
[MAX_EXTRA_ARGS
];
152 const char *format
= NULL
; /* might want to default to "tar" */
153 const char *remote
= NULL
;
154 const char *base
= "";
158 for (i
= 1; i
< argc
; i
++) {
159 const char *arg
= argv
[i
];
161 if (!strcmp(arg
, "--list") || !strcmp(arg
, "-l")) {
165 if (!strncmp(arg
, "--format=", 9)) {
169 if (!strncmp(arg
, "--prefix=", 9)) {
173 if (!strncmp(arg
, "--remote=", 9)) {
177 if (!strcmp(arg
, "--")) {
182 if (extra_argc
> MAX_EXTRA_ARGS
- 1)
183 die("Too many extra options");
184 extra_argv
[extra_argc
++] = arg
;
192 for (i
= 0; i
< ARRAY_SIZE(archivers
); i
++)
193 printf("%s\n", archivers
[i
].name
);
196 die("--list and --remote are mutually exclusive");
200 usage(archive_usage
);
202 die("You must specify an archive format");
203 if (init_archiver(format
, ar
) < 0)
204 die("Unknown archive format '%s'", format
);
206 if (extra_argc
&& !remote
) {
207 if (!ar
->parse_extra
) {
208 die("%s", default_parse_extra(ar
, extra_argv
));
210 ar
->args
.extra
= ar
->parse_extra(extra_argc
, extra_argv
);
213 ar
->args
.base
= base
;
218 int cmd_archive(int argc
, const char **argv
, const char *prefix
)
223 tree_idx
= parse_archive_args(argc
, argv
, &ar
);
226 return run_remote_archiver(&ar
, argc
, argv
);
229 prefix
= setup_git_directory();
232 parse_treeish_arg(argv
, &ar
.args
, prefix
);
233 parse_pathspec_arg(argv
+ 1, &ar
.args
);
235 return ar
.write_archive(&ar
.args
);