| | 1 | /* |
| | 2 | * Copyright (C) 2005 Junio C Hamano |
| | 3 | */ |
| | 4 | #ifndef _DIFFCORE_H_ |
| | 5 | #define _DIFFCORE_H_ |
| | 6 | |
| | 7 | /* This header file is internal between diff.c and its diff transformers |
| | 8 | * (e.g. diffcore-rename, diffcore-pickaxe). Never include this header |
| | 9 | * in anything else. |
| | 10 | */ |
| | 11 | #define MAX_SCORE 10000 |
| | 12 | #define DEFAULT_MINIMUM_SCORE 5000 |
| | 13 | |
| | 14 | #define RENAME_DST_MATCHED 01 |
| | 15 | |
| | 16 | struct diff_filespec { |
| | 17 | unsigned char sha1[20]; |
| | 18 | char *path; |
| | 19 | void *data; |
| | 20 | unsigned long size; |
| | 21 | int xfrm_flags; /* for use by the xfrm */ |
| | 22 | unsigned short mode; /* file mode */ |
| | 23 | unsigned sha1_valid : 1; /* if true, use sha1 and trust mode; |
| | 24 | * if false, use the name and read from |
| | 25 | * the filesystem. |
| | 26 | */ |
| | 27 | #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0) |
| | 28 | unsigned should_free : 1; /* data should be free()'ed */ |
| | 29 | unsigned should_munmap : 1; /* data should be munmap()'ed */ |
| | 30 | }; |
| | 31 | |
| | 32 | extern struct diff_filespec *alloc_filespec(const char *); |
| | 33 | extern void fill_filespec(struct diff_filespec *, const unsigned char *, |
| | 34 | unsigned short); |
| | 35 | |
| | 36 | extern int diff_populate_filespec(struct diff_filespec *); |
| | 37 | extern void diff_free_filespec_data(struct diff_filespec *); |
| | 38 | |
| | 39 | struct diff_filepair { |
| | 40 | struct diff_filespec *one; |
| | 41 | struct diff_filespec *two; |
| | 42 | int score; /* only valid when one and two are different paths */ |
| | 43 | int status; /* M C R N D U (see Documentation/diff-format.txt) */ |
| | 44 | }; |
| | 45 | #define DIFF_PAIR_UNMERGED(p) \ |
| | 46 | (!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two)) |
| | 47 | |
| | 48 | #define DIFF_PAIR_TYPE_CHANGED(p) \ |
| | 49 | ((S_IFMT & (p)->one->mode) != (S_IFMT & (p)->two->mode)) |
| | 50 | |
| | 51 | #define DIFF_PAIR_MODE_CHANGED(p) ((p)->one->mode != (p)->two->mode) |
| | 52 | |
| | 53 | #define DIFF_FILE_CANON_MODE(mode) \ |
| | 54 | (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \ |
| | 55 | S_ISLNK(mode) ? S_IFLNK : S_IFDIR) |
| | 56 | |
| | 57 | extern int diff_unmodified_pair(struct diff_filepair *); |
| | 58 | |
| | 59 | struct diff_queue_struct { |
| | 60 | struct diff_filepair **queue; |
| | 61 | int alloc; |
| | 62 | int nr; |
| | 63 | }; |
| | 64 | |
| | 65 | extern struct diff_queue_struct diff_queued_diff; |
| | 66 | extern struct diff_filepair *diff_queue(struct diff_queue_struct *, |
| | 67 | struct diff_filespec *, |
| | 68 | struct diff_filespec *); |
| | 69 | extern void diff_q(struct diff_queue_struct *, struct diff_filepair *); |
| | 70 | |
| | 71 | extern int diff_needs_to_stay(struct diff_queue_struct *, int, |
| | 72 | struct diff_filespec *); |
| | 73 | |
| | 74 | #define DIFF_DEBUG 0 |
| | 75 | #if DIFF_DEBUG |
| | 76 | void diff_debug_filespec(struct diff_filespec *, int, const char *); |
| | 77 | void diff_debug_filepair(const struct diff_filepair *, int); |
| | 78 | void diff_debug_queue(const char *, struct diff_queue_struct *); |
| | 79 | #else |
| | 80 | #define diff_debug_filespec(a,b,c) do {} while(0) |
| | 81 | #define diff_debug_filepair(a,b) do {} while(0) |
| | 82 | #define diff_debug_queue(a,b) do {} while(0) |
| | 83 | #endif |
| | 84 | |
| | 85 | #endif |
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