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e2b5038d87
Comments stating that "struct hashmap_entry" must be the first member in a struct are no longer valid. Suggested-by: Phillip Wood <phillip.wood123@gmail.com> Signed-off-by: Eric Wong <e@80x24.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
#ifndef MERGE_RECURSIVE_H
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#define MERGE_RECURSIVE_H
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#include "strbuf.h"
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struct commit;
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struct commit_list;
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struct object_id;
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struct repository;
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struct tree;
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struct merge_options_internal;
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struct merge_options {
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struct repository *repo;
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/* ref names used in console messages and conflict markers */
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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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/* rename related options */
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int detect_renames;
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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 rename_limit;
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int rename_score;
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int show_rename_progress;
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/* xdiff-related options (patience, ignore whitespace, ours/theirs) */
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long xdl_opts;
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enum {
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MERGE_VARIANT_NORMAL = 0,
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MERGE_VARIANT_OURS,
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MERGE_VARIANT_THEIRS
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} recursive_variant;
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/* console output related options */
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int verbosity;
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unsigned buffer_output; /* 1: output at end, 2: keep buffered */
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struct strbuf obuf; /* output buffer; if buffer_output == 2, caller
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* must handle and call strbuf_release */
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/* miscellaneous control options */
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const char *subtree_shift;
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unsigned renormalize : 1;
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/* internal fields used by the implementation */
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struct merge_options_internal *priv;
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};
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void init_merge_options(struct merge_options *opt, struct repository *repo);
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/* parse the option in s and update the relevant field of opt */
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int parse_merge_opt(struct merge_options *opt, const char *s);
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/*
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* RETURN VALUES: All the merge_* functions below return a value as follows:
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* > 0 Merge was clean
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* = 0 Merge had conflicts
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* < 0 Merge hit an unexpected and unrecoverable problem (e.g. disk
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* full) and aborted merge part-way through.
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*/
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/*
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* rename-detecting three-way merge, no recursion.
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*
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* Outputs:
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* - See RETURN VALUES above
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* - No commit is created
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* - opt->repo->index has the new index
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* - $GIT_INDEX_FILE is not updated
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* - The working tree is updated with results of the merge
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*/
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int merge_trees(struct merge_options *opt,
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struct tree *head,
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struct tree *merge,
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struct tree *merge_base);
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/*
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* merge_recursive is like merge_trees() but with recursive ancestor
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* consolidation and, if the commit is clean, creation of a commit.
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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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* merge_bases were passed in the order of oldest commit to newest
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* commit. Also, merge_bases will be consumed (emptied) so make a
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* copy if you need it.
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*
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* Outputs:
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* - See RETURN VALUES above
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* - If merge is clean, a commit is created and its address written to *result
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* - opt->repo->index has the new index
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* - $GIT_INDEX_FILE is not updated
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* - The working tree is updated with results of the merge
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*/
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int merge_recursive(struct merge_options *opt,
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struct commit *h1,
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struct commit *h2,
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struct commit_list *merge_bases,
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struct commit **result);
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/*
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* merge_recursive_generic can operate on trees instead of commits, by
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* wrapping the trees into virtual commits, and calling merge_recursive().
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* It also writes out the in-memory index to disk if the merge is successful.
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*
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* Outputs:
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* - See RETURN VALUES above
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* - If merge is clean, a commit is created and its address written to *result
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* - opt->repo->index has the new index
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* - $GIT_INDEX_FILE is updated
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* - The working tree is updated with results of the merge
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*/
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int merge_recursive_generic(struct merge_options *opt,
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const struct object_id *head,
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const struct object_id *merge,
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int num_merge_bases,
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const struct object_id **merge_bases,
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struct commit **result);
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#endif
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