| /* |
| * Copyright (C) the libgit2 contributors. All rights reserved. |
| * |
| * This file is part of libgit2, distributed under the GNU GPL v2 with |
| * a Linking Exception. For full terms see the included COPYING file. |
| */ |
| #ifndef INCLUDE_diff_h__ |
| #define INCLUDE_diff_h__ |
| |
| #include "git2/diff.h" |
| #include "git2/sys/diff.h" |
| #include "git2/oid.h" |
| |
| #include <stdio.h> |
| #include "vector.h" |
| #include "buffer.h" |
| #include "iterator.h" |
| #include "repository.h" |
| #include "pool.h" |
| #include "odb.h" |
| |
| #define DIFF_OLD_PREFIX_DEFAULT "a/" |
| #define DIFF_NEW_PREFIX_DEFAULT "b/" |
| |
| enum { |
| GIT_DIFFCAPS_HAS_SYMLINKS = (1 << 0), /* symlinks on platform? */ |
| GIT_DIFFCAPS_IGNORE_STAT = (1 << 1), /* use stat? */ |
| GIT_DIFFCAPS_TRUST_MODE_BITS = (1 << 2), /* use st_mode? */ |
| GIT_DIFFCAPS_TRUST_CTIME = (1 << 3), /* use st_ctime? */ |
| GIT_DIFFCAPS_USE_DEV = (1 << 4), /* use st_dev? */ |
| GIT_DIFFCAPS_TRUST_NANOSECS = (1 << 5), /* use stat time nanoseconds */ |
| }; |
| |
| #define DIFF_FLAGS_KNOWN_BINARY (GIT_DIFF_FLAG_BINARY|GIT_DIFF_FLAG_NOT_BINARY) |
| #define DIFF_FLAGS_NOT_BINARY (GIT_DIFF_FLAG_NOT_BINARY|GIT_DIFF_FLAG__NO_DATA) |
| |
| enum { |
| GIT_DIFF_FLAG__FREE_PATH = (1 << 7), /* `path` is allocated memory */ |
| GIT_DIFF_FLAG__FREE_DATA = (1 << 8), /* internal file data is allocated */ |
| GIT_DIFF_FLAG__UNMAP_DATA = (1 << 9), /* internal file data is mmap'ed */ |
| GIT_DIFF_FLAG__NO_DATA = (1 << 10), /* file data should not be loaded */ |
| GIT_DIFF_FLAG__FREE_BLOB = (1 << 11), /* release the blob when done */ |
| GIT_DIFF_FLAG__LOADED = (1 << 12), /* file data has been loaded */ |
| |
| GIT_DIFF_FLAG__TO_DELETE = (1 << 16), /* delete entry during rename det. */ |
| GIT_DIFF_FLAG__TO_SPLIT = (1 << 17), /* split entry during rename det. */ |
| GIT_DIFF_FLAG__IS_RENAME_TARGET = (1 << 18), |
| GIT_DIFF_FLAG__IS_RENAME_SOURCE = (1 << 19), |
| GIT_DIFF_FLAG__HAS_SELF_SIMILARITY = (1 << 20), |
| }; |
| |
| #define GIT_DIFF_FLAG__CLEAR_INTERNAL(F) (F) = ((F) & 0x00FFFF) |
| |
| #define GIT_DIFF__VERBOSE (1 << 30) |
| |
| struct git_diff { |
| git_refcount rc; |
| git_repository *repo; |
| git_diff_options opts; |
| git_vector pathspec; |
| git_vector deltas; /* vector of git_diff_delta */ |
| git_pool pool; |
| git_iterator_type_t old_src; |
| git_iterator_type_t new_src; |
| uint32_t diffcaps; |
| git_diff_perfdata perf; |
| |
| int (*strcomp)(const char *, const char *); |
| int (*strncomp)(const char *, const char *, size_t); |
| int (*pfxcomp)(const char *str, const char *pfx); |
| int (*entrycomp)(const void *a, const void *b); |
| }; |
| |
| extern void git_diff__cleanup_modes( |
| uint32_t diffcaps, uint32_t *omode, uint32_t *nmode); |
| |
| extern void git_diff_addref(git_diff *diff); |
| |
| extern int git_diff_delta__cmp(const void *a, const void *b); |
| extern int git_diff_delta__casecmp(const void *a, const void *b); |
| |
| extern const char *git_diff_delta__path(const git_diff_delta *delta); |
| |
| extern bool git_diff_delta__should_skip( |
| const git_diff_options *opts, const git_diff_delta *delta); |
| |
| extern int git_diff_delta__format_file_header( |
| git_buf *out, |
| const git_diff_delta *delta, |
| const char *oldpfx, |
| const char *newpfx, |
| int oid_strlen); |
| |
| extern int git_diff__oid_for_file( |
| git_oid *out, git_diff *, const char *, uint16_t, git_off_t); |
| extern int git_diff__oid_for_entry( |
| git_oid *out, git_diff *, const git_index_entry *, const git_oid *update); |
| |
| extern int git_diff__from_iterators( |
| git_diff **diff_ptr, |
| git_repository *repo, |
| git_iterator *old_iter, |
| git_iterator *new_iter, |
| const git_diff_options *opts); |
| |
| extern int git_diff__paired_foreach( |
| git_diff *idx2head, |
| git_diff *wd2idx, |
| int (*cb)(git_diff_delta *i2h, git_diff_delta *w2i, void *payload), |
| void *payload); |
| |
| extern int git_diff_find_similar__hashsig_for_file( |
| void **out, const git_diff_file *f, const char *path, void *p); |
| |
| extern int git_diff_find_similar__hashsig_for_buf( |
| void **out, const git_diff_file *f, const char *buf, size_t len, void *p); |
| |
| extern void git_diff_find_similar__hashsig_free(void *sig, void *payload); |
| |
| extern int git_diff_find_similar__calc_similarity( |
| int *score, void *siga, void *sigb, void *payload); |
| |
| extern int git_diff__commit( |
| git_diff **diff, git_repository *repo, const git_commit *commit, const git_diff_options *opts); |
| |
| /* |
| * Sometimes a git_diff_file will have a zero size; this attempts to |
| * fill in the size without loading the blob if possible. If that is |
| * not possible, then it will return the git_odb_object that had to be |
| * loaded and the caller can use it or dispose of it as needed. |
| */ |
| GIT_INLINE(int) git_diff_file__resolve_zero_size( |
| git_diff_file *file, git_odb_object **odb_obj, git_repository *repo) |
| { |
| int error; |
| git_odb *odb; |
| size_t len; |
| git_otype type; |
| |
| if ((error = git_repository_odb(&odb, repo)) < 0) |
| return error; |
| |
| error = git_odb__read_header_or_object( |
| odb_obj, &len, &type, odb, &file->id); |
| |
| git_odb_free(odb); |
| |
| if (!error) |
| file->size = (git_off_t)len; |
| |
| return error; |
| } |
| |
| #endif |
| |