14 int get_verbosely
= 0;
16 static unsigned char current_commit_sha1
[20];
18 void pull_say(const char *fmt
, const char *hex
)
21 fprintf(stderr
, fmt
, hex
);
24 static void report_missing(const struct object
*obj
)
27 strcpy(missing_hex
, sha1_to_hex(obj
->sha1
));;
28 fprintf(stderr
, "Cannot obtain needed %s %s\n",
29 obj
->type
? typename(obj
->type
): "object", missing_hex
);
30 if (!is_null_sha1(current_commit_sha1
))
31 fprintf(stderr
, "while processing commit %s.\n",
32 sha1_to_hex(current_commit_sha1
));
35 static int process(struct object
*obj
);
37 static int process_tree(struct tree
*tree
)
39 struct tree_desc desc
;
40 struct name_entry entry
;
45 init_tree_desc(&desc
, tree
->buffer
, tree
->size
);
46 while (tree_entry(&desc
, &entry
)) {
47 struct object
*obj
= NULL
;
49 /* submodule commits are not stored in the superproject */
50 if (S_ISGITLINK(entry
.mode
))
52 if (S_ISDIR(entry
.mode
)) {
53 struct tree
*tree
= lookup_tree(entry
.sha1
);
58 struct blob
*blob
= lookup_blob(entry
.sha1
);
62 if (!obj
|| process(obj
))
71 #define COMPLETE (1U << 0)
72 #define SEEN (1U << 1)
73 #define TO_SCAN (1U << 2)
75 static struct commit_list
*complete
= NULL
;
77 static int process_commit(struct commit
*commit
)
79 if (parse_commit(commit
))
82 while (complete
&& complete
->item
->date
>= commit
->date
) {
83 pop_most_recent_commit(&complete
, COMPLETE
);
86 if (commit
->object
.flags
& COMPLETE
)
89 hashcpy(current_commit_sha1
, commit
->object
.sha1
);
91 pull_say("walk %s\n", sha1_to_hex(commit
->object
.sha1
));
94 if (process(&commit
->tree
->object
))
100 struct commit_list
*parents
= commit
->parents
;
101 for (; parents
; parents
= parents
->next
) {
102 if (process(&parents
->item
->object
))
109 static int process_tag(struct tag
*tag
)
113 return process(tag
->tagged
);
116 static struct object_list
*process_queue
= NULL
;
117 static struct object_list
**process_queue_end
= &process_queue
;
119 static int process_object(struct object
*obj
)
121 if (obj
->type
== OBJ_COMMIT
) {
122 if (process_commit((struct commit
*)obj
))
126 if (obj
->type
== OBJ_TREE
) {
127 if (process_tree((struct tree
*)obj
))
131 if (obj
->type
== OBJ_BLOB
) {
134 if (obj
->type
== OBJ_TAG
) {
135 if (process_tag((struct tag
*)obj
))
139 return error("Unable to determine requirements "
141 typename(obj
->type
), sha1_to_hex(obj
->sha1
));
144 static int process(struct object
*obj
)
146 if (obj
->flags
& SEEN
)
150 if (has_sha1_file(obj
->sha1
)) {
151 /* We already have it, so we should scan it now. */
152 obj
->flags
|= TO_SCAN
;
155 if (obj
->flags
& COMPLETE
)
160 object_list_insert(obj
, process_queue_end
);
161 process_queue_end
= &(*process_queue_end
)->next
;
165 static int loop(void)
167 struct object_list
*elem
;
169 while (process_queue
) {
170 struct object
*obj
= process_queue
->item
;
171 elem
= process_queue
;
172 process_queue
= elem
->next
;
175 process_queue_end
= &process_queue
;
177 /* If we are not scanning this object, we placed it in
178 * the queue because we needed to fetch it first.
180 if (! (obj
->flags
& TO_SCAN
)) {
181 if (fetch(obj
->sha1
)) {
187 parse_object(obj
->sha1
);
188 if (process_object(obj
))
194 static int interpret_target(char *target
, unsigned char *sha1
)
196 if (!get_sha1_hex(target
, sha1
))
198 if (!check_ref_format(target
)) {
199 if (!fetch_ref(target
, sha1
)) {
206 static int mark_complete(const char *path
, const unsigned char *sha1
, int flag
, void *cb_data
)
208 struct commit
*commit
= lookup_commit_reference_gently(sha1
, 1);
210 commit
->object
.flags
|= COMPLETE
;
211 insert_by_date(commit
, &complete
);
216 int pull_targets_stdin(char ***target
, const char ***write_ref
)
218 int targets
= 0, targets_alloc
= 0;
220 *target
= NULL
; *write_ref
= NULL
;
226 read_line(&buf
, stdin
, '\n');
230 rf_one
= strchr(tg_one
, '\t');
234 if (targets
>= targets_alloc
) {
235 targets_alloc
= targets_alloc
? targets_alloc
* 2 : 64;
236 *target
= xrealloc(*target
, targets_alloc
* sizeof(**target
));
237 *write_ref
= xrealloc(*write_ref
, targets_alloc
* sizeof(**write_ref
));
239 (*target
)[targets
] = xstrdup(tg_one
);
240 (*write_ref
)[targets
] = rf_one
? xstrdup(rf_one
) : NULL
;
246 void pull_targets_free(int targets
, char **target
, const char **write_ref
)
249 free(target
[targets
]);
250 if (write_ref
&& write_ref
[targets
])
251 free((char *) write_ref
[targets
]);
255 int pull(int targets
, char **target
, const char **write_ref
,
256 const char *write_ref_log_details
)
258 struct ref_lock
**lock
= xcalloc(targets
, sizeof(struct ref_lock
*));
259 unsigned char *sha1
= xmalloc(targets
* 20);
264 save_commit_buffer
= 0;
265 track_object_refs
= 0;
267 for (i
= 0; i
< targets
; i
++) {
268 if (!write_ref
|| !write_ref
[i
])
271 lock
[i
] = lock_ref_sha1(write_ref
[i
], NULL
);
273 error("Can't lock ref %s", write_ref
[i
]);
274 goto unlock_and_fail
;
279 for_each_ref(mark_complete
, NULL
);
281 for (i
= 0; i
< targets
; i
++) {
282 if (interpret_target(target
[i
], &sha1
[20 * i
])) {
283 error("Could not interpret %s as something to pull", target
[i
]);
284 goto unlock_and_fail
;
286 if (process(lookup_unknown_object(&sha1
[20 * i
])))
287 goto unlock_and_fail
;
291 goto unlock_and_fail
;
293 if (write_ref_log_details
) {
294 msg
= xmalloc(strlen(write_ref_log_details
) + 12);
295 sprintf(msg
, "fetch from %s", write_ref_log_details
);
299 for (i
= 0; i
< targets
; i
++) {
300 if (!write_ref
|| !write_ref
[i
])
302 ret
= write_ref_sha1(lock
[i
], &sha1
[20 * i
], msg
? msg
: "fetch (unknown)");
305 goto unlock_and_fail
;
313 for (i
= 0; i
< targets
; i
++)