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724dd767b2
write_tree_from_memory() appeared to be a merge-recursive special that
basically duplicated write_index_as_tree(). The two have a different
signature, but the bigger difference was just that write_index_as_tree()
would always unconditionally read the index off of disk instead of
working on the current in-memory index. So:
* split out common code into write_index_as_tree_internal()
* rename write_tree_from_memory() to write_inmemory_index_as_tree(),
make it call write_index_as_tree_internal(), and move it to
cache-tree.c
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
#ifndef MERGE_RECURSIVE_H
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#define MERGE_RECURSIVE_H
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#include "string-list.h"
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#include "unpack-trees.h"
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struct commit;
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struct repository;
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struct merge_options {
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const char *ancestor;
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const char *branch1;
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const char *branch2;
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enum {
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MERGE_RECURSIVE_NORMAL = 0,
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MERGE_RECURSIVE_OURS,
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MERGE_RECURSIVE_THEIRS
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} recursive_variant;
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const char *subtree_shift;
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unsigned buffer_output; /* 1: output at end, 2: keep buffered */
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unsigned renormalize : 1;
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long xdl_opts;
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int verbosity;
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enum {
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MERGE_DIRECTORY_RENAMES_NONE = 0,
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MERGE_DIRECTORY_RENAMES_CONFLICT = 1,
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MERGE_DIRECTORY_RENAMES_TRUE = 2
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} detect_directory_renames;
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int diff_detect_rename;
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int merge_detect_rename;
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int diff_rename_limit;
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int merge_rename_limit;
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int rename_score;
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int needed_rename_limit;
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int show_rename_progress;
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int call_depth;
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struct strbuf obuf;
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struct hashmap current_file_dir_set;
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struct string_list df_conflict_file_set;
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struct unpack_trees_options unpack_opts;
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struct index_state orig_index;
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struct repository *repo;
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};
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/*
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* For dir_rename_entry, directory names are stored as a full path from the
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* toplevel of the repository and do not include a trailing '/'. Also:
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*
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* dir: original name of directory being renamed
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* non_unique_new_dir: if true, could not determine new_dir
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* new_dir: final name of directory being renamed
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* possible_new_dirs: temporary used to help determine new_dir; see comments
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* in get_directory_renames() for details
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*/
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struct dir_rename_entry {
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struct hashmap_entry ent; /* must be the first member! */
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char *dir;
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unsigned non_unique_new_dir:1;
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struct strbuf new_dir;
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struct string_list possible_new_dirs;
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};
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struct collision_entry {
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struct hashmap_entry ent; /* must be the first member! */
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char *target_file;
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struct string_list source_files;
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unsigned reported_already:1;
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};
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static inline int merge_detect_rename(struct merge_options *o)
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{
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return o->merge_detect_rename >= 0 ? o->merge_detect_rename :
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o->diff_detect_rename >= 0 ? o->diff_detect_rename : 1;
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}
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/*
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* merge_recursive is like merge_trees() but with recursive ancestor
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* consolidation, and when successful, it creates an actual commit
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* and writes its address to *result.
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*
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* NOTE: empirically, about a decade ago it was determined that with more
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* than two merge bases, optimal behavior was found when the
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* ancestors were passed in the order of oldest merge base to newest
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* one. Also, ancestors will be consumed (emptied) so make a copy if
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* you need it.
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*/
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int merge_recursive(struct merge_options *o,
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struct commit *h1,
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struct commit *h2,
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struct commit_list *ancestors,
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struct commit **result);
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/*
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* rename-detecting three-way merge, no recursion; result of merge is written
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* to opt->repo->index.
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*/
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int merge_trees(struct merge_options *o,
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struct tree *head,
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struct tree *merge,
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struct tree *common);
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/*
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* "git-merge-recursive" can be fed trees; wrap them into
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* virtual commits and call merge_recursive() proper.
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*/
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int merge_recursive_generic(struct merge_options *o,
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const struct object_id *head,
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const struct object_id *merge,
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int num_ca,
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const struct object_id **ca,
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struct commit **result);
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void init_merge_options(struct merge_options *o,
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struct repository *repo);
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int parse_merge_opt(struct merge_options *out, const char *s);
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#endif
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