The third batch
[git/debian.git] / commit-reach.h
blob148b56fea50629607d2f0dd196cbd4dec08fdcfd
1 #ifndef COMMIT_REACH_H
2 #define COMMIT_REACH_H
4 #include "commit.h"
5 #include "commit-slab.h"
7 struct commit_list;
8 struct ref_filter;
9 struct object_id;
10 struct object_array;
12 struct commit_list *repo_get_merge_bases(struct repository *r,
13 struct commit *rev1,
14 struct commit *rev2);
15 struct commit_list *repo_get_merge_bases_many(struct repository *r,
16 struct commit *one, int n,
17 struct commit **twos);
18 /* To be used only when object flags after this call no longer matter */
19 struct commit_list *repo_get_merge_bases_many_dirty(struct repository *r,
20 struct commit *one, int n,
21 struct commit **twos);
22 #ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
23 #define get_merge_bases(r1, r2) repo_get_merge_bases(the_repository, r1, r2)
24 #define get_merge_bases_many(one, n, two) repo_get_merge_bases_many(the_repository, one, n, two)
25 #define get_merge_bases_many_dirty(one, n, twos) repo_get_merge_bases_many_dirty(the_repository, one, n, twos)
26 #endif
28 struct commit_list *get_octopus_merge_bases(struct commit_list *in);
30 int repo_is_descendant_of(struct repository *r,
31 struct commit *commit,
32 struct commit_list *with_commit);
33 int repo_in_merge_bases(struct repository *r,
34 struct commit *commit,
35 struct commit *reference);
36 int repo_in_merge_bases_many(struct repository *r,
37 struct commit *commit,
38 int nr_reference, struct commit **reference);
39 #ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
40 #define in_merge_bases(c1, c2) repo_in_merge_bases(the_repository, c1, c2)
41 #define in_merge_bases_many(c1, n, cs) repo_in_merge_bases_many(the_repository, c1, n, cs)
42 #endif
45 * Takes a list of commits and returns a new list where those
46 * have been removed that can be reached from other commits in
47 * the list. It is useful for, e.g., reducing the commits
48 * randomly thrown at the git-merge command and removing
49 * redundant commits that the user shouldn't have given to it.
51 * This function destroys the STALE bit of the commit objects'
52 * flags.
54 struct commit_list *reduce_heads(struct commit_list *heads);
57 * Like `reduce_heads()`, except it replaces the list. Use this
58 * instead of `foo = reduce_heads(foo);` to avoid memory leaks.
60 void reduce_heads_replace(struct commit_list **heads);
62 int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid);
65 * Unknown has to be "0" here, because that's the default value for
66 * contains_cache slab entries that have not yet been assigned.
68 enum contains_result {
69 CONTAINS_UNKNOWN = 0,
70 CONTAINS_NO,
71 CONTAINS_YES
74 define_commit_slab(contains_cache, enum contains_result);
76 int commit_contains(struct ref_filter *filter, struct commit *commit,
77 struct commit_list *list, struct contains_cache *cache);
80 * Determine if every commit in 'from' can reach at least one commit
81 * that is marked with 'with_flag'. As we traverse, use 'assign_flag'
82 * as a marker for commits that are already visited. Do not walk
83 * commits with date below 'min_commit_date' or generation below
84 * 'min_generation'.
86 int can_all_from_reach_with_flag(struct object_array *from,
87 unsigned int with_flag,
88 unsigned int assign_flag,
89 time_t min_commit_date,
90 timestamp_t min_generation);
91 int can_all_from_reach(struct commit_list *from, struct commit_list *to,
92 int commit_date_cutoff);
96 * Return a list of commits containing the commits in the 'to' array
97 * that are reachable from at least one commit in the 'from' array.
98 * Also add the given 'flag' to each of the commits in the returned list.
100 * This method uses the PARENT1 and PARENT2 flags during its operation,
101 * so be sure these flags are not set before calling the method.
103 struct commit_list *get_reachable_subset(struct commit **from, int nr_from,
104 struct commit **to, int nr_to,
105 unsigned int reachable_flag);
107 #endif