diff options
Diffstat (limited to 'third_party/git/diffcore.h')
-rw-r--r-- | third_party/git/diffcore.h | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/third_party/git/diffcore.h b/third_party/git/diffcore.h deleted file mode 100644 index d2a63c5c71f4..000000000000 --- a/third_party/git/diffcore.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Copyright (C) 2005 Junio C Hamano - */ -#ifndef DIFFCORE_H -#define DIFFCORE_H - -#include "cache.h" - -struct diff_options; -struct repository; -struct userdiff_driver; - -/* This header file is internal between diff.c and its diff transformers - * (e.g. diffcore-rename, diffcore-pickaxe). Never include this header - * in anything else. - */ - -/* We internally use unsigned short as the score value, - * and rely on an int capable to hold 32-bits. -B can take - * -Bmerge_score/break_score format and the two scores are - * passed around in one int (high 16-bit for merge and low 16-bit - * for break). - */ -#define MAX_SCORE 60000.0 -#define DEFAULT_RENAME_SCORE 30000 /* rename/copy similarity minimum (50%) */ -#define DEFAULT_BREAK_SCORE 30000 /* minimum for break to happen (50%) */ -#define DEFAULT_MERGE_SCORE 36000 /* maximum for break-merge to happen (60%) */ - -#define MINIMUM_BREAK_SIZE 400 /* do not break a file smaller than this */ - -/** - * the internal representation for a single file (blob). It records the blob - * object name (if known -- for a work tree file it typically is a NUL SHA-1), - * filemode and pathname. This is what the `diff_addremove()`, `diff_change()` - * and `diff_unmerge()` synthesize and feed `diff_queue()` function with. - */ -struct diff_filespec { - struct object_id oid; - char *path; - void *data; - void *cnt_data; - unsigned long size; - int count; /* Reference count */ - int rename_used; /* Count of rename users */ - unsigned short mode; /* file mode */ - unsigned oid_valid : 1; /* if true, use oid and trust mode; - * if false, use the name and read from - * the filesystem. - */ -#define DIFF_FILE_VALID(spec) (((spec)->mode) != 0) - unsigned should_free : 1; /* data should be free()'ed */ - unsigned should_munmap : 1; /* data should be munmap()'ed */ - unsigned dirty_submodule : 2; /* For submodules: its work tree is dirty */ -#define DIRTY_SUBMODULE_UNTRACKED 1 -#define DIRTY_SUBMODULE_MODIFIED 2 - unsigned is_stdin : 1; - unsigned has_more_entries : 1; /* only appear in combined diff */ - /* data should be considered "binary"; -1 means "don't know yet" */ - signed int is_binary : 2; - struct userdiff_driver *driver; -}; - -struct diff_filespec *alloc_filespec(const char *); -void free_filespec(struct diff_filespec *); -void fill_filespec(struct diff_filespec *, const struct object_id *, - int, unsigned short); - -/* - * Prefetch the entries in diff_queued_diff. The parameter is a pointer to a - * struct repository. - */ -void diff_queued_diff_prefetch(void *repository); - -struct diff_populate_filespec_options { - unsigned check_size_only : 1; - unsigned check_binary : 1; - - /* - * If an object is missing, diff_populate_filespec() will invoke this - * callback before attempting to read that object again. - */ - void (*missing_object_cb)(void *); - void *missing_object_data; -}; -int diff_populate_filespec(struct repository *, struct diff_filespec *, - const struct diff_populate_filespec_options *); -void diff_free_filespec_data(struct diff_filespec *); -void diff_free_filespec_blob(struct diff_filespec *); -int diff_filespec_is_binary(struct repository *, struct diff_filespec *); - -/** - * This records a pair of `struct diff_filespec`; the filespec for a file in - * the "old" set (i.e. preimage) is called `one`, and the filespec for a file - * in the "new" set (i.e. postimage) is called `two`. A change that represents - * file creation has NULL in `one`, and file deletion has NULL in `two`. - * - * A `filepair` starts pointing at `one` and `two` that are from the same - * filename, but `diffcore_std()` can break pairs and match component filespecs - * with other filespecs from a different filepair to form new filepair. This is - * called 'rename detection'. - */ -struct diff_filepair { - struct diff_filespec *one; - struct diff_filespec *two; - unsigned short int score; - char status; /* M C R A D U etc. (see Documentation/diff-format.txt or DIFF_STATUS_* in diff.h) */ - unsigned broken_pair : 1; - unsigned renamed_pair : 1; - unsigned is_unmerged : 1; - unsigned done_skip_stat_unmatch : 1; - unsigned skip_stat_unmatch_result : 1; -}; - -#define DIFF_PAIR_UNMERGED(p) ((p)->is_unmerged) - -#define DIFF_PAIR_RENAME(p) ((p)->renamed_pair) - -#define DIFF_PAIR_BROKEN(p) \ - ( (!DIFF_FILE_VALID((p)->one) != !DIFF_FILE_VALID((p)->two)) && \ - ((p)->broken_pair != 0) ) - -#define DIFF_PAIR_TYPE_CHANGED(p) \ - ((S_IFMT & (p)->one->mode) != (S_IFMT & (p)->two->mode)) - -#define DIFF_PAIR_MODE_CHANGED(p) ((p)->one->mode != (p)->two->mode) - -void diff_free_filepair(struct diff_filepair *); - -int diff_unmodified_pair(struct diff_filepair *); - -/** - * This is a collection of filepairs. Notable members are: - * - * - `queue`: - * An array of pointers to `struct diff_filepair`. This dynamically grows as - * you add filepairs; - * - * - `alloc`: - * The allocated size of the `queue` array; - * - * - `nr`: - * The number of elements in the `queue` array. - */ -struct diff_queue_struct { - struct diff_filepair **queue; - int alloc; - int nr; -}; - -#define DIFF_QUEUE_CLEAR(q) \ - do { \ - (q)->queue = NULL; \ - (q)->nr = (q)->alloc = 0; \ - } while (0) - -extern struct diff_queue_struct diff_queued_diff; -struct diff_filepair *diff_queue(struct diff_queue_struct *, - struct diff_filespec *, - struct diff_filespec *); -void diff_q(struct diff_queue_struct *, struct diff_filepair *); - -void diffcore_break(struct repository *, int); -void diffcore_rename(struct diff_options *); -void diffcore_merge_broken(void); -void diffcore_pickaxe(struct diff_options *); -void diffcore_order(const char *orderfile); - -/* low-level interface to diffcore_order */ -struct obj_order { - void *obj; /* setup by caller */ - - /* setup/used by order_objects() */ - int orig_order; - int order; -}; - -typedef const char *(*obj_path_fn_t)(void *obj); - -void order_objects(const char *orderfile, obj_path_fn_t obj_path, - struct obj_order *objs, int nr); - -#define DIFF_DEBUG 0 -#if DIFF_DEBUG -void diff_debug_filespec(struct diff_filespec *, int, const char *); -void diff_debug_filepair(const struct diff_filepair *, int); -void diff_debug_queue(const char *, struct diff_queue_struct *); -#else -#define diff_debug_filespec(a,b,c) do { /* nothing */ } while (0) -#define diff_debug_filepair(a,b) do { /* nothing */ } while (0) -#define diff_debug_queue(a,b) do { /* nothing */ } while (0) -#endif - -int diffcore_count_changes(struct repository *r, - struct diff_filespec *src, - struct diff_filespec *dst, - void **src_count_p, - void **dst_count_p, - unsigned long *src_copied, - unsigned long *literal_added); - -/* - * If filespec contains an OID and if that object is missing from the given - * repository, add that OID to to_fetch. - */ -void diff_add_if_missing(struct repository *r, - struct oid_array *to_fetch, - const struct diff_filespec *filespec); - -#endif |