about summary refs log tree commit diff
path: root/third_party/git/diffcore.h
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/git/diffcore.h')
-rw-r--r--third_party/git/diffcore.h209
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 d2a63c5c71..0000000000
--- 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