]> git.ipfire.org Git - thirdparty/git.git/blame - pack-bitmap.h
Merge branch 'maint-2.1' into maint
[thirdparty/git.git] / pack-bitmap.h
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1#ifndef PACK_BITMAP_H
2#define PACK_BITMAP_H
3
4#include "ewah/ewok.h"
5#include "khash.h"
7cc8f971 6#include "pack-objects.h"
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7
8struct bitmap_disk_entry {
9 uint32_t object_pos;
10 uint8_t xor_offset;
11 uint8_t flags;
12} __attribute__((packed));
13
14struct bitmap_disk_header {
15 char magic[4];
16 uint16_t version;
17 uint16_t options;
18 uint32_t entry_count;
19 unsigned char checksum[20];
20};
21
22static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'};
23
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24#define NEEDS_BITMAP (1u<<22)
25
fff42755 26enum pack_bitmap_opts {
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27 BITMAP_OPT_FULL_DAG = 1,
28 BITMAP_OPT_HASH_CACHE = 4,
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29};
30
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31enum pack_bitmap_flags {
32 BITMAP_FLAG_REUSE = 0x1
33};
34
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35typedef int (*show_reachable_fn)(
36 const unsigned char *sha1,
37 enum object_type type,
38 int flags,
39 uint32_t hash,
40 struct packed_git *found_pack,
41 off_t found_offset);
42
43int prepare_bitmap_git(void);
44void count_bitmap_commit_list(uint32_t *commits, uint32_t *trees, uint32_t *blobs, uint32_t *tags);
45void traverse_bitmap_commit_list(show_reachable_fn show_reachable);
46void test_bitmap_walk(struct rev_info *revs);
47char *pack_bitmap_filename(struct packed_git *p);
48int prepare_bitmap_walk(struct rev_info *revs);
49int reuse_partial_packfile_from_bitmap(struct packed_git **packfile, uint32_t *entries, off_t *up_to);
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50int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bitmaps, int show_progress);
51
52void bitmap_writer_show_progress(int show);
53void bitmap_writer_set_checksum(unsigned char *sha1);
54void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr);
55void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack);
56void bitmap_writer_select_commits(struct commit **indexed_commits,
57 unsigned int indexed_commits_nr, int max_bitmaps);
58void bitmap_writer_build(struct packing_data *to_pack);
59void bitmap_writer_finish(struct pack_idx_entry **index,
60 uint32_t index_nr,
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61 const char *filename,
62 uint16_t options);
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63
64#endif