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[git/mingw/j6t.git] / notes-merge.h
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1 #ifndef NOTES_MERGE_H
2 #define NOTES_MERGE_H
4 #include "notes-utils.h"
6 #define NOTES_MERGE_WORKTREE "NOTES_MERGE_WORKTREE"
8 enum notes_merge_verbosity {
9 NOTES_MERGE_VERBOSITY_DEFAULT = 2,
10 NOTES_MERGE_VERBOSITY_MAX = 5
13 struct notes_merge_options {
14 const char *local_ref;
15 const char *remote_ref;
16 struct strbuf commit_msg;
17 int verbosity;
18 enum notes_merge_strategy strategy;
19 unsigned has_worktree:1;
22 void init_notes_merge_options(struct notes_merge_options *o);
25 * Merge notes from o->remote_ref into o->local_ref
27 * The given notes_tree 'local_tree' must be the notes_tree referenced by the
28 * o->local_ref. This is the notes_tree in which the object-level merge is
29 * performed.
31 * The commits given by the two refs are merged, producing one of the following
32 * outcomes:
34 * 1. The merge trivially results in an existing commit (e.g. fast-forward or
35 * already-up-to-date). 'local_tree' is untouched, the SHA1 of the result
36 * is written into 'result_sha1' and 0 is returned.
37 * 2. The merge successfully completes, producing a merge commit. local_tree
38 * contains the updated notes tree, the SHA1 of the resulting commit is
39 * written into 'result_sha1', and 1 is returned.
40 * 3. The merge results in conflicts. This is similar to #2 in that the
41 * partial merge result (i.e. merge result minus the unmerged entries)
42 * are stored in 'local_tree', and the SHA1 or the resulting commit
43 * (to be amended when the conflicts have been resolved) is written into
44 * 'result_sha1'. The unmerged entries are written into the
45 * .git/NOTES_MERGE_WORKTREE directory with conflict markers.
46 * -1 is returned.
48 * Both o->local_ref and o->remote_ref must be given (non-NULL), but either ref
49 * (although not both) may refer to a non-existing notes ref, in which case
50 * that notes ref is interpreted as an empty notes tree, and the merge
51 * trivially results in what the other ref points to.
53 int notes_merge(struct notes_merge_options *o,
54 struct notes_tree *local_tree,
55 unsigned char *result_sha1);
58 * Finalize conflict resolution from an earlier notes_merge()
60 * The given notes tree 'partial_tree' must be the notes_tree corresponding to
61 * the given 'partial_commit', the partial result commit created by a previous
62 * call to notes_merge().
64 * This function will add the (now resolved) notes in .git/NOTES_MERGE_WORKTREE
65 * to 'partial_tree', and create a final notes merge commit, the SHA1 of which
66 * will be stored in 'result_sha1'.
68 int notes_merge_commit(struct notes_merge_options *o,
69 struct notes_tree *partial_tree,
70 struct commit *partial_commit,
71 unsigned char *result_sha1);
74 * Abort conflict resolution from an earlier notes_merge()
76 * Removes the notes merge worktree in .git/NOTES_MERGE_WORKTREE.
78 int notes_merge_abort(struct notes_merge_options *o);
80 #endif