Make release tarballs friendlier to older tar versions
[git/git.git] / object.h
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1#ifndef OBJECT_H
2#define OBJECT_H
3
4struct object_list {
5 struct object *item;
6 struct object_list *next;
9ce43d1c 7 const char *name;
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8};
9
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10struct object_refs {
11 unsigned count;
8f1d2e6f 12 struct object *ref[FLEX_ARRAY]; /* more */
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13};
14
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15#define TYPE_BITS 3
16#define FLAG_BITS 27
17
18#define TYPE_NONE 0
19#define TYPE_BLOB 1
20#define TYPE_TREE 2
21#define TYPE_COMMIT 3
22#define TYPE_TAG 4
23#define TYPE_BAD 5
24
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25struct object {
26 unsigned parsed : 1;
27 unsigned used : 1;
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28 unsigned type : TYPE_BITS;
29 unsigned flags : FLAG_BITS;
6eb8ae00 30 unsigned char sha1[20];
27dedf0c 31 struct object_refs *refs;
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32};
33
8805ccac 34extern int track_object_refs;
070879ca 35extern int obj_allocs;
88355048 36extern struct object **objs;
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37extern const char *type_names[];
38
39static inline const char *typename(unsigned int type)
40{
41 return type_names[type > TYPE_TAG ? TYPE_BAD : type];
42}
6eb8ae00 43
89e4202f 44/** Internal only **/
5d6ccf5c 45struct object *lookup_object(const unsigned char *sha1);
6eb8ae00 46
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47/** Returns the object, having looked it up as being the given type. **/
48struct object *lookup_object_type(const unsigned char *sha1, const char *type);
49
5d6ccf5c 50void created_object(const unsigned char *sha1, struct object *obj);
6eb8ae00 51
e9eefa67 52/** Returns the object, having parsed it to find out what it is. **/
5d6ccf5c 53struct object *parse_object(const unsigned char *sha1);
e9eefa67 54
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55/** Returns the object, with potentially excess memory allocated. **/
56struct object *lookup_unknown_object(const unsigned char *sha1);
57
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58struct object_refs *alloc_object_refs(unsigned count);
59void set_object_refs(struct object *obj, struct object_refs *refs);
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60
61void mark_reachable(struct object *obj, unsigned int mask);
62
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63struct object_list *object_list_insert(struct object *item,
64 struct object_list **list_p);
65
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66void object_list_append(struct object *item,
67 struct object_list **list_p);
68
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69unsigned object_list_length(struct object_list *list);
70
71int object_list_contains(struct object_list *list, struct object *obj);
72
6eb8ae00 73#endif /* OBJECT_H */