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/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_diff_generate_h__
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#define INCLUDE_diff_generate_h__
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enum {
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GIT_DIFFCAPS_HAS_SYMLINKS = (1 << 0), /* symlinks on platform? */
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GIT_DIFFCAPS_IGNORE_STAT = (1 << 1), /* use stat? */
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GIT_DIFFCAPS_TRUST_MODE_BITS = (1 << 2), /* use st_mode? */
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GIT_DIFFCAPS_TRUST_CTIME = (1 << 3), /* use st_ctime? */
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GIT_DIFFCAPS_USE_DEV = (1 << 4), /* use st_dev? */
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};
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#define DIFF_FLAGS_KNOWN_BINARY (GIT_DIFF_FLAG_BINARY|GIT_DIFF_FLAG_NOT_BINARY)
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#define DIFF_FLAGS_NOT_BINARY (GIT_DIFF_FLAG_NOT_BINARY|GIT_DIFF_FLAG__NO_DATA)
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enum {
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GIT_DIFF_FLAG__FREE_PATH = (1 << 7), /* `path` is allocated memory */
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GIT_DIFF_FLAG__FREE_DATA = (1 << 8), /* internal file data is allocated */
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GIT_DIFF_FLAG__UNMAP_DATA = (1 << 9), /* internal file data is mmap'ed */
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GIT_DIFF_FLAG__NO_DATA = (1 << 10), /* file data should not be loaded */
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GIT_DIFF_FLAG__FREE_BLOB = (1 << 11), /* release the blob when done */
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GIT_DIFF_FLAG__LOADED = (1 << 12), /* file data has been loaded */
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GIT_DIFF_FLAG__TO_DELETE = (1 << 16), /* delete entry during rename det. */
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GIT_DIFF_FLAG__TO_SPLIT = (1 << 17), /* split entry during rename det. */
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GIT_DIFF_FLAG__IS_RENAME_TARGET = (1 << 18),
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GIT_DIFF_FLAG__IS_RENAME_SOURCE = (1 << 19),
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GIT_DIFF_FLAG__HAS_SELF_SIMILARITY = (1 << 20),
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};
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#define GIT_DIFF_FLAG__CLEAR_INTERNAL(F) (F) = ((F) & 0x00FFFF)
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#define GIT_DIFF__VERBOSE (1 << 30)
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extern void git_diff_addref(git_diff *diff);
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extern bool git_diff_delta__should_skip(
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const git_diff_options *opts, const git_diff_delta *delta);
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extern int git_diff__from_iterators(
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git_diff **diff_ptr,
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git_repository *repo,
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git_iterator *old_iter,
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git_iterator *new_iter,
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const git_diff_options *opts);
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extern int git_diff__commit(
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git_diff **diff, git_repository *repo, const git_commit *commit, const git_diff_options *opts);
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extern int git_diff__paired_foreach(
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git_diff *idx2head,
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git_diff *wd2idx,
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int (*cb)(git_diff_delta *i2h, git_diff_delta *w2i, void *payload),
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void *payload);
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/* Merge two `git_diff`s according to the callback given by `cb`. */
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typedef git_diff_delta *(*git_diff__merge_cb)(
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const git_diff_delta *left,
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const git_diff_delta *right,
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git_pool *pool);
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extern int git_diff__merge(
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git_diff *onto, const git_diff *from, git_diff__merge_cb cb);
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extern git_diff_delta *git_diff__merge_like_cgit(
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const git_diff_delta *a,
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const git_diff_delta *b,
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git_pool *pool);
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/* Duplicate a `git_diff_delta` out of the `git_pool` */
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extern git_diff_delta *git_diff__delta_dup(
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const git_diff_delta *d, git_pool *pool);
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extern int git_diff__oid_for_file(
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git_oid *out,
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git_diff *diff,
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const char *path,
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uint16_t mode,
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git_off_t size);
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extern int git_diff__oid_for_entry(
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git_oid *out,
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git_diff *diff,
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const git_index_entry *src,
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uint16_t mode,
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const git_oid *update_match);
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/*
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* Sometimes a git_diff_file will have a zero size; this attempts to
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* fill in the size without loading the blob if possible. If that is
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* not possible, then it will return the git_odb_object that had to be
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* loaded and the caller can use it or dispose of it as needed.
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*/
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GIT_INLINE(int) git_diff_file__resolve_zero_size(
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git_diff_file *file, git_odb_object **odb_obj, git_repository *repo)
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{
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int error;
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git_odb *odb;
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size_t len;
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git_otype type;
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if ((error = git_repository_odb(&odb, repo)) < 0)
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return error;
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error = git_odb__read_header_or_object(
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odb_obj, &len, &type, odb, &file->id);
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git_odb_free(odb);
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if (!error)
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file->size = (git_off_t)len;
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return error;
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}
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#endif
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