diff options
Diffstat (limited to 'third_party/git/merge-recursive.h')
| -rw-r--r-- | third_party/git/merge-recursive.h | 164 |
1 files changed, 72 insertions, 92 deletions
diff --git a/third_party/git/merge-recursive.h b/third_party/git/merge-recursive.h index 978847e67248..c2b7bb65c62f 100644 --- a/third_party/git/merge-recursive.h +++ b/third_party/git/merge-recursive.h @@ -1,124 +1,104 @@ #ifndef MERGE_RECURSIVE_H #define MERGE_RECURSIVE_H -#include "strbuf.h" +#include "string-list.h" +#include "unpack-trees.h" struct commit; -struct commit_list; -struct object_id; + struct repository; -struct tree; -struct merge_options_internal; struct merge_options { - struct repository *repo; - - /* ref names used in console messages and conflict markers */ const char *ancestor; const char *branch1; const char *branch2; - - /* rename related options */ - int detect_renames; enum { - MERGE_DIRECTORY_RENAMES_NONE = 0, - MERGE_DIRECTORY_RENAMES_CONFLICT = 1, - MERGE_DIRECTORY_RENAMES_TRUE = 2 - } detect_directory_renames; - int rename_limit; - int rename_score; - int show_rename_progress; - - /* xdiff-related options (patience, ignore whitespace, ours/theirs) */ - long xdl_opts; - enum { - MERGE_VARIANT_NORMAL = 0, - MERGE_VARIANT_OURS, - MERGE_VARIANT_THEIRS + MERGE_RECURSIVE_NORMAL = 0, + MERGE_RECURSIVE_OURS, + MERGE_RECURSIVE_THEIRS } recursive_variant; - - /* console output related options */ - int verbosity; - unsigned buffer_output; /* 1: output at end, 2: keep buffered */ - struct strbuf obuf; /* output buffer; if buffer_output == 2, caller - * must handle and call strbuf_release */ - - /* miscellaneous control options */ const char *subtree_shift; + unsigned buffer_output; /* 1: output at end, 2: keep buffered */ unsigned renormalize : 1; - - /* internal fields used by the implementation */ - struct merge_options_internal *priv; + long xdl_opts; + int verbosity; + int detect_directory_renames; + int diff_detect_rename; + int merge_detect_rename; + int diff_rename_limit; + int merge_rename_limit; + int rename_score; + int needed_rename_limit; + int show_rename_progress; + int call_depth; + struct strbuf obuf; + struct hashmap current_file_dir_set; + struct string_list df_conflict_file_set; + struct unpack_trees_options unpack_opts; + struct index_state orig_index; + struct repository *repo; }; -void init_merge_options(struct merge_options *opt, struct repository *repo); - -/* parse the option in s and update the relevant field of opt */ -int parse_merge_opt(struct merge_options *opt, const char *s); - /* - * RETURN VALUES: All the merge_* functions below return a value as follows: - * > 0 Merge was clean - * = 0 Merge had conflicts - * < 0 Merge hit an unexpected and unrecoverable problem (e.g. disk - * full) and aborted merge part-way through. - */ - -/* - * rename-detecting three-way merge, no recursion. + * For dir_rename_entry, directory names are stored as a full path from the + * toplevel of the repository and do not include a trailing '/'. Also: * - * Outputs: - * - See RETURN VALUES above - * - No commit is created - * - opt->repo->index has the new index - * - $GIT_INDEX_FILE is not updated - * - The working tree is updated with results of the merge + * dir: original name of directory being renamed + * non_unique_new_dir: if true, could not determine new_dir + * new_dir: final name of directory being renamed + * possible_new_dirs: temporary used to help determine new_dir; see comments + * in get_directory_renames() for details */ -int merge_trees(struct merge_options *opt, - struct tree *head, - struct tree *merge, - struct tree *merge_base); +struct dir_rename_entry { + struct hashmap_entry ent; /* must be the first member! */ + char *dir; + unsigned non_unique_new_dir:1; + struct strbuf new_dir; + struct string_list possible_new_dirs; +}; -/* - * merge_recursive is like merge_trees() but with recursive ancestor - * consolidation and, if the commit is clean, creation of a commit. - * - * NOTE: empirically, about a decade ago it was determined that with more - * than two merge bases, optimal behavior was found when the - * merge_bases were passed in the order of oldest commit to newest - * commit. Also, merge_bases will be consumed (emptied) so make a - * copy if you need it. - * - * Outputs: - * - See RETURN VALUES above - * - If merge is clean, a commit is created and its address written to *result - * - opt->repo->index has the new index - * - $GIT_INDEX_FILE is not updated - * - The working tree is updated with results of the merge - */ -int merge_recursive(struct merge_options *opt, +struct collision_entry { + struct hashmap_entry ent; /* must be the first member! */ + char *target_file; + struct string_list source_files; + unsigned reported_already:1; +}; + +static inline int merge_detect_rename(struct merge_options *o) +{ + return o->merge_detect_rename >= 0 ? o->merge_detect_rename : + o->diff_detect_rename >= 0 ? o->diff_detect_rename : 1; +} + +/* merge_trees() but with recursive ancestor consolidation */ +int merge_recursive(struct merge_options *o, struct commit *h1, struct commit *h2, - struct commit_list *merge_bases, + 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); + /* - * merge_recursive_generic can operate on trees instead of commits, by - * wrapping the trees into virtual commits, and calling merge_recursive(). - * It also writes out the in-memory index to disk if the merge is successful. - * - * Outputs: - * - See RETURN VALUES above - * - If merge is clean, a commit is created and its address written to *result - * - opt->repo->index has the new index - * - $GIT_INDEX_FILE is updated - * - The working tree is updated with results of the merge + * "git-merge-recursive" can be fed trees; wrap them into + * virtual commits and call merge_recursive() proper. */ -int merge_recursive_generic(struct merge_options *opt, +int merge_recursive_generic(struct merge_options *o, const struct object_id *head, const struct object_id *merge, - int num_merge_bases, - const struct object_id **merge_bases, + int num_ca, + const struct object_id **ca, struct commit **result); +void init_merge_options(struct merge_options *o, + struct repository *repo); +struct tree *write_tree_from_memory(struct merge_options *o); + +int parse_merge_opt(struct merge_options *out, const char *s); + #endif |