Merge branch 'bc/sha-256-cvs-svn-updates'
[git] / bisect.h
1 #ifndef BISECT_H
2 #define BISECT_H
3
4 struct commit_list;
5 struct repository;
6
7 /*
8  * Find bisection. If something is found, `reaches` will be the number of
9  * commits that the best commit reaches. `all` will be the count of
10  * non-SAMETREE commits. If nothing is found, `list` will be NULL.
11  * Otherwise, it will be either all non-SAMETREE commits or the single
12  * best commit, as chosen by `find_all`.
13  */
14 void find_bisection(struct commit_list **list, int *reaches, int *all,
15                     int find_all);
16
17 struct commit_list *filter_skipped(struct commit_list *list,
18                                    struct commit_list **tried,
19                                    int show_all,
20                                    int *count,
21                                    int *skipped_first);
22
23 #define BISECT_SHOW_ALL         (1<<0)
24 #define REV_LIST_QUIET          (1<<1)
25
26 struct rev_list_info {
27         struct rev_info *revs;
28         int flags;
29         int show_timestamp;
30         int hdr_termination;
31         const char *header_prefix;
32 };
33
34 /*
35  * enum bisect_error represents the following return codes:
36  * BISECT_OK: success code. Internally, it means that next
37  * commit has been found (and possibly checked out) and it
38  * should be tested.
39  * BISECT_FAILED error code: default error code.
40  * BISECT_ONLY_SKIPPED_LEFT error code: only skipped
41  * commits left to be tested.
42  * BISECT_MERGE_BASE_CHECK error code: merge base check failed.
43  * BISECT_NO_TESTABLE_COMMIT error code: no testable commit found.
44  * BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND early success code:
45  * first term_bad commit found.
46  * BISECT_INTERNAL_SUCCESS_MERGE_BASE early success
47  * code: found merge base that should be tested.
48  * Early success codes BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND and
49  * BISECT_INTERNAL_SUCCESS_MERGE_BASE should be only internal codes.
50  */
51 enum bisect_error {
52         BISECT_OK = 0,
53         BISECT_FAILED = -1,
54         BISECT_ONLY_SKIPPED_LEFT = -2,
55         BISECT_MERGE_BASE_CHECK = -3,
56         BISECT_NO_TESTABLE_COMMIT = -4,
57         BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND = -10,
58         BISECT_INTERNAL_SUCCESS_MERGE_BASE = -11
59 };
60
61 enum bisect_error bisect_next_all(struct repository *r,
62                     const char *prefix,
63                     int no_checkout);
64
65 int estimate_bisect_steps(int all);
66
67 void read_bisect_terms(const char **bad, const char **good);
68
69 int bisect_clean_state(void);
70
71 #endif