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   1/*
   2 * Copyright (C) 2005 Junio C Hamano
   3 */
   4#ifndef DIFF_H
   5#define DIFF_H
   6
   7#define DIFF_FILE_CANON_MODE(mode) \
   8        (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
   9        S_ISLNK(mode) ? S_IFLNK : S_IFDIR)
  10
  11extern void diff_addremove(int addremove,
  12                           unsigned mode,
  13                           const unsigned char *sha1,
  14                           const char *base,
  15                           const char *path);
  16
  17extern void diff_change(unsigned mode1, unsigned mode2,
  18                             const unsigned char *sha1,
  19                             const unsigned char *sha2,
  20                             const char *base, const char *path);
  21
  22extern void diff_unmerge(const char *path);
  23
  24extern int diff_scoreopt_parse(const char *opt);
  25
  26#define DIFF_SETUP_REVERSE              1
  27#define DIFF_SETUP_USE_CACHE            2
  28#define DIFF_SETUP_USE_SIZE_CACHE       4
  29
  30extern void diff_setup(int flags);
  31
  32#define DIFF_DETECT_RENAME      1
  33#define DIFF_DETECT_COPY        2
  34
  35#define DIFF_PICKAXE_ALL        1
  36
  37extern void diffcore_std(const char **paths,
  38                         int detect_rename, int rename_score,
  39                         const char *pickaxe, int pickaxe_opts,
  40                         int break_opt,
  41                         const char *orderfile, const char *filter);
  42
  43extern void diffcore_std_no_resolve(const char **paths,
  44                                    const char *pickaxe, int pickaxe_opts,
  45                                    const char *orderfile, const char *filter);
  46
  47#define COMMON_DIFF_OPTIONS_HELP \
  48"\ncommon diff options:\n" \
  49"  -r           diff recursively (only meaningful in diff-tree)\n" \
  50"  -z           output diff-raw with lines terminated with NUL.\n" \
  51"  -p           output patch format.\n" \
  52"  -u           synonym for -p.\n" \
  53"  --name-only  show only names of changed files.\n" \
  54"  --name-only-z\n" \
  55"               same as --name-only but terminate lines with NUL.\n" \
  56"  -R           swap input file pairs.\n" \
  57"  -B           detect complete rewrites.\n" \
  58"  -M           detect renames.\n" \
  59"  -C           detect copies.\n" \
  60"  --find-copies-harder\n" \
  61"               try unchanged files as candidate for copy detection.\n" \
  62"  -O<file>     reorder diffs according to the <file>.\n" \
  63"  -S<string>   find filepair whose only one side contains the string.\n" \
  64"  --pickaxe-all\n" \
  65"               show all files diff when -S is used and hit is found.\n"
  66
  67extern int diff_queue_is_empty(void);
  68
  69#define DIFF_FORMAT_RAW         1
  70#define DIFF_FORMAT_PATCH       2
  71#define DIFF_FORMAT_NO_OUTPUT   3
  72#define DIFF_FORMAT_NAME        4
  73
  74extern void diff_flush(int output_style, int line_terminator);
  75
  76/* diff-raw status letters */
  77#define DIFF_STATUS_ADDED               'A'
  78#define DIFF_STATUS_COPIED              'C'
  79#define DIFF_STATUS_DELETED             'D'
  80#define DIFF_STATUS_MODIFIED            'M'
  81#define DIFF_STATUS_RENAMED             'R'
  82#define DIFF_STATUS_TYPE_CHANGED        'T'
  83#define DIFF_STATUS_UNKNOWN             'X'
  84#define DIFF_STATUS_UNMERGED            'U'
  85
  86/* these are not diff-raw status letters proper, but used by
  87 * diffcore-filter insn to specify additional restrictions.
  88 */
  89#define DIFF_STATUS_FILTER_AON          'A'
  90#define DIFF_STATUS_FILTER_BROKEN       'B'
  91
  92#endif /* DIFF_H */