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git/merge-recursive.h
Junio C Hamano 85e51b783c Make "subtree" part more orthogonal to the rest of merge-recursive.
This makes "subtree" more orthogonal to the rest of recursive merge, so
that you can use subtree and ours/theirs features at the same time.  For
example, you can now say:

	git merge -s subtree -Xtheirs other

to merge with "other" branch while shifting it up or down to match the
shape of the tree of the current branch, and resolving conflicts favoring
the changes "other" branch made over changes made in the current branch.

It also allows the prefix used to shift the trees to be specified using
the "-Xsubtree=$prefix" option.  Giving an empty prefix tells the command
to figure out how much to shift trees automatically as we have always
done.  "merge -s subtree" is the same as "merge -s recursive -Xsubtree="
(or "merge -s recursive -Xsubtree").

Based on an old patch done back in the days when git-merge was a script;
Avery ported the script part to builtin-merge.c.  Bugs in shift_tree()
is mine.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17 22:46:28 -08:00

54 lines
1.3 KiB
C

#ifndef MERGE_RECURSIVE_H
#define MERGE_RECURSIVE_H
#include "string-list.h"
struct merge_options {
const char *branch1;
const char *branch2;
enum {
MERGE_RECURSIVE_NORMAL = 0,
MERGE_RECURSIVE_OURS,
MERGE_RECURSIVE_THEIRS,
} recursive_variant;
const char *subtree_shift;
unsigned buffer_output : 1;
int verbosity;
int diff_rename_limit;
int merge_rename_limit;
int call_depth;
struct strbuf obuf;
struct string_list current_file_set;
struct string_list current_directory_set;
};
/* merge_trees() but with recursive ancestor consolidation */
int merge_recursive(struct merge_options *o,
struct commit *h1,
struct commit *h2,
struct commit_list *ancestors,
struct commit **result);
/* rename-detecting three-way merge, no recursion */
int merge_trees(struct merge_options *o,
struct tree *head,
struct tree *merge,
struct tree *common,
struct tree **result);
/*
* "git-merge-recursive" can be fed trees; wrap them into
* virtual commits and call merge_recursive() proper.
*/
int merge_recursive_generic(struct merge_options *o,
const unsigned char *head,
const unsigned char *merge,
int num_ca,
const unsigned char **ca,
struct commit **result);
void init_merge_options(struct merge_options *o);
struct tree *write_tree_from_memory(struct merge_options *o);
#endif