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https://git.proxmox.com/git/libgit2
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b36effa22e
The `git_diff_iterator_num_files` API was problematic, since we don't actually know the exact number of files to be iterated over until we load those files into memory. This replaces it with a new `git_diff_iterator_progress` API that goes from 0 to 1, and moves and renamed the old API for the internal places that can tolerate a max value instead of an exact value.
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
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* Copyright (C) 2009-2012 the libgit2 contributors
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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_h__
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#define INCLUDE_diff_h__
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#include <stdio.h>
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#include "vector.h"
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#include "buffer.h"
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#include "iterator.h"
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#include "repository.h"
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#include "pool.h"
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#define DIFF_OLD_PREFIX_DEFAULT "a/"
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#define DIFF_NEW_PREFIX_DEFAULT "b/"
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enum {
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GIT_DIFFCAPS_HAS_SYMLINKS = (1 << 0), /* symlinks on platform? */
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GIT_DIFFCAPS_ASSUME_UNCHANGED = (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 MAX_DIFF_FILESIZE 0x20000000
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struct git_diff_list {
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git_refcount rc;
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git_repository *repo;
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git_diff_options opts;
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git_vector pathspec;
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git_vector deltas; /* vector of git_diff_file_delta */
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git_pool pool;
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git_iterator_type_t old_src;
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git_iterator_type_t new_src;
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uint32_t diffcaps;
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};
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extern void git_diff__cleanup_modes(
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uint32_t diffcaps, uint32_t *omode, uint32_t *nmode);
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/**
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* Return the maximum possible number of files in the diff.
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*
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* NOTE: This number has to be treated as an upper bound on the number of
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* files that have changed if the diff is with the working directory.
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*
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* Why?! For efficiency, we defer loading the file contents as long as
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* possible, so if a file has been "touched" in the working directory and
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* then reverted to the original content, it may get stored in the diff list
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* as MODIFIED along with a flag that the status should be reconfirmed when
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* it is actually loaded into memory. When that load happens, it could get
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* flipped to UNMODIFIED. If unmodified files are being skipped, then the
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* iterator will skip that file and this number may be too high.
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*
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* This behavior is true of `git_diff_foreach` as well, but the only
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* implication there is that the `progress` value would not advance evenly.
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*
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* @param iterator The iterator object
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* @return The maximum number of files to be iterated over
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*/
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int git_diff_iterator__max_files(git_diff_iterator *iterator);
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#endif
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