tvl-depot/notes-merge.h
Vincent Ambo 1b593e1ea4 Squashed 'third_party/git/' content from commit cb71568594
git-subtree-dir: third_party/git
git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7
2020-01-11 23:36:56 +00:00

87 lines
2.9 KiB
C

#ifndef NOTES_MERGE_H
#define NOTES_MERGE_H
#include "notes-utils.h"
#include "strbuf.h"
struct commit;
struct object_id;
struct repository;
#define NOTES_MERGE_WORKTREE "NOTES_MERGE_WORKTREE"
enum notes_merge_verbosity {
NOTES_MERGE_VERBOSITY_DEFAULT = 2,
NOTES_MERGE_VERBOSITY_MAX = 5
};
struct notes_merge_options {
struct repository *repo;
const char *local_ref;
const char *remote_ref;
struct strbuf commit_msg;
int verbosity;
enum notes_merge_strategy strategy;
unsigned has_worktree:1;
};
void init_notes_merge_options(struct repository *r,
struct notes_merge_options *o);
/*
* Merge notes from o->remote_ref into o->local_ref
*
* The given notes_tree 'local_tree' must be the notes_tree referenced by the
* o->local_ref. This is the notes_tree in which the object-level merge is
* performed.
*
* The commits given by the two refs are merged, producing one of the following
* outcomes:
*
* 1. The merge trivially results in an existing commit (e.g. fast-forward or
* already-up-to-date). 'local_tree' is untouched, the OID of the result
* is written into 'result_oid' and 0 is returned.
* 2. The merge successfully completes, producing a merge commit. local_tree
* contains the updated notes tree, the OID of the resulting commit is
* written into 'result_oid', and 1 is returned.
* 3. The merge results in conflicts. This is similar to #2 in that the
* partial merge result (i.e. merge result minus the unmerged entries)
* are stored in 'local_tree', and the OID or the resulting commit
* (to be amended when the conflicts have been resolved) is written into
* 'result_oid'. The unmerged entries are written into the
* .git/NOTES_MERGE_WORKTREE directory with conflict markers.
* -1 is returned.
*
* Both o->local_ref and o->remote_ref must be given (non-NULL), but either ref
* (although not both) may refer to a non-existing notes ref, in which case
* that notes ref is interpreted as an empty notes tree, and the merge
* trivially results in what the other ref points to.
*/
int notes_merge(struct notes_merge_options *o,
struct notes_tree *local_tree,
struct object_id *result_oid);
/*
* Finalize conflict resolution from an earlier notes_merge()
*
* The given notes tree 'partial_tree' must be the notes_tree corresponding to
* the given 'partial_commit', the partial result commit created by a previous
* call to notes_merge().
*
* This function will add the (now resolved) notes in .git/NOTES_MERGE_WORKTREE
* to 'partial_tree', and create a final notes merge commit, the OID of which
* will be stored in 'result_oid'.
*/
int notes_merge_commit(struct notes_merge_options *o,
struct notes_tree *partial_tree,
struct commit *partial_commit,
struct object_id *result_oid);
/*
* Abort conflict resolution from an earlier notes_merge()
*
* Removes the notes merge worktree in .git/NOTES_MERGE_WORKTREE.
*/
int notes_merge_abort(struct notes_merge_options *o);
#endif