/* * Copyright (C) 2005 Junio C Hamano */ #ifndef DIFF_H #define DIFF_H #include "tree-walk.h" #include "pathspec.h" #include "object.h" struct rev_info; struct diff_options; struct diff_queue_struct; struct strbuf; struct diff_filespec; struct userdiff_driver; struct sha1_array; struct commit; struct combine_diff_path; typedef int (*pathchange_fn_t)(struct diff_options *options, struct combine_diff_path *path); typedef void (*change_fn_t)(struct diff_options *options, unsigned old_mode, unsigned new_mode, const unsigned char *old_sha1, const unsigned char *new_sha1, int old_sha1_valid, int new_sha1_valid, const char *fullpath, unsigned old_dirty_submodule, unsigned new_dirty_submodule); typedef void (*add_remove_fn_t)(struct diff_options *options, int addremove, unsigned mode, const unsigned char *sha1, int sha1_valid, const char *fullpath, unsigned dirty_submodule); typedef void (*diff_format_fn_t)(struct diff_queue_struct *q, struct diff_options *options, void *data); typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data); #define DIFF_FORMAT_RAW 0x0001 #define DIFF_FORMAT_DIFFSTAT 0x0002 #define DIFF_FORMAT_NUMSTAT 0x0004 #define DIFF_FORMAT_SUMMARY 0x0008 #define DIFF_FORMAT_PATCH 0x0010 #define DIFF_FORMAT_SHORTSTAT 0x0020 #define DIFF_FORMAT_DIRSTAT 0x0040 /* These override all above */ #define DIFF_FORMAT_NAME 0x0100 #define DIFF_FORMAT_NAME_STATUS 0x0200 #define DIFF_FORMAT_CHECKDIFF 0x0400 /* Same as output_format = 0 but we know that -s flag was given * and we should not give default value to output_format. */ #define DIFF_FORMAT_NO_OUTPUT 0x0800 #define DIFF_FORMAT_CALLBACK 0x1000 #define DIFF_OPT_RECURSIVE (1 << 0) #define DIFF_OPT_TREE_IN_RECURSIVE (1 << 1) #define DIFF_OPT_BINARY (1 << 2) #define DIFF_OPT_TEXT (1 << 3) #define DIFF_OPT_FULL_INDEX (1 << 4) #define DIFF_OPT_SILENT_ON_REMOVE (1 << 5) #define DIFF_OPT_FIND_COPIES_HARDER (1 << 6) #define DIFF_OPT_FOLLOW_RENAMES (1 << 7) #define DIFF_OPT_RENAME_EMPTY (1 << 8) /* (1 << 9) unused */ #define DIFF_OPT_HAS_CHANGES (1 << 10) #define DIFF_OPT_QUICK (1 << 11) #define DIFF_OPT_NO_INDEX (1 << 12) #define DIFF_OPT_ALLOW_EXTERNAL (1 << 13) #define DIFF_OPT_EXIT_WITH_STATUS (1 << 14) #define DIFF_OPT_REVERSE_DIFF (1 << 15) #define DIFF_OPT_CHECK_FAILED (1 << 16) #define DIFF_OPT_RELATIVE_NAME (1 << 17) #define DIFF_OPT_IGNORE_SUBMODULES (1 << 18) #define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19) #define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20) #define DIFF_OPT_ALLOW_TEXTCONV (1 << 21) #define DIFF_OPT_DIFF_FROM_CONTENTS (1 << 22) #define DIFF_OPT_SUBMODULE_LOG (1 << 23) #define DIFF_OPT_DIRTY_SUBMODULES (1 << 24) #define DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES (1 << 25) #define DIFF_OPT_IGNORE_DIRTY_SUBMODULES (1 << 26) #define DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG (1 << 27) #define DIFF_OPT_DIRSTAT_BY_LINE (1 << 28) #define DIFF_OPT_FUNCCONTEXT (1 << 29) #define DIFF_OPT_PICKAXE_IGNORE_CASE (1 << 30) #define DIFF_OPT_DEFAULT_FOLLOW_RENAMES (1U << 31) #define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag) #define DIFF_OPT_TOUCHED(opts, flag) ((opts)->touched_flags & DIFF_OPT_##flag) #define DIFF_OPT_SET(opts, flag) (((opts)->flags |= DIFF_OPT_##flag),((opts)->touched_flags |= DIFF_OPT_##flag)) #define DIFF_OPT_CLR(opts, flag) (((opts)->flags &= ~DIFF_OPT_##flag),((opts)->touched_flags |= DIFF_OPT_##flag)) #define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag) #define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag) #define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag) #define DIFF_WITH_ALG(opts, flag) (((opts)->xdl_opts & ~XDF_DIFF_ALGORITHM_MASK) | XDF_##flag) enum diff_words_type { DIFF_WORDS_NONE = 0, DIFF_WORDS_PORCELAIN, DIFF_WORDS_PLAIN, DIFF_WORDS_COLOR }; struct diff_options { const char *orderfile; const char *pickaxe; const char *single_follow; const char *a_prefix, *b_prefix; unsigned flags; unsigned touched_flags; /* diff-filter bits */ unsigned int filter; int use_color; int context; int interhunkcontext; int break_opt; int detect_rename; int irreversible_delete; int skip_stat_unmatch; int line_termination; int output_format; int pickaxe_opts; int rename_score; int rename_limit; int needed_rename_limit; int degraded_cc_to_c; int show_rename_progress; int dirstat_permille; int setup; int abbrev; /* white-space error highlighting */ #define WSEH_NEW 1 #define WSEH_CONTEXT 2 #define WSEH_OLD 4 unsigned ws_error_highlight; const char *prefix; int prefix_length; const char *stat_sep; long xdl_opts; int stat_width; int stat_name_width; int stat_graph_width; int stat_count; const char *word_regex; enum diff_words_type word_diff; /* this is set by diffcore for DIFF_FORMAT_PATCH */ int found_changes; /* to support internal diff recursion by --follow hack*/ int found_follow; void (*set_default)(struct diff_options *); FILE *file; int close_file; struct pathspec pathspec; pathchange_fn_t pathchange; change_fn_t change; add_remove_fn_t add_remove; diff_format_fn_t format_callback; void *format_callback_data; diff_prefix_fn_t output_prefix; int output_prefix_length; void *output_prefix_data; int diff_path_counter; }; enum color_diff { DIFF_RESET = 0, DIFF_CONTEXT = 1, DIFF_METAINFO = 2, DIFF_FRAGINFO = 3, DIFF_FILE_OLD = 4, DIFF_FILE_NEW = 5, DIFF_COMMIT = 6, DIFF_WHITESPACE = 7, DIFF_FUNCINFO = 8 }; const char *diff_get_color(int diff_use_color, enum color_diff ix); #define diff_get_color_opt(o, ix) \ diff_get_color((o)->use_color, ix) const char *diff_line_prefix(struct diff_options *); extern const char mime_boundary_leader[]; extern struct combine_diff_path *diff_tree_paths( struct combine_diff_path *p, const unsigned char *sha1, const unsigned char **parent_sha1, int nparent, struct strbuf *base, struct diff_options *opt); extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const char *base, struct diff_options *opt); extern int diff_root_tree_sha1(const unsigned char *new, const char *base, struct diff_options *opt); struct combine_diff_path { struct combine_diff_path *next; char *path; unsigned int mode; struct object_id oid; struct combine_diff_parent { char status; unsigned int mode; struct object_id oid; } parent[FLEX_ARRAY]; }; #define combine_diff_path_size(n, l) \ st_add4(sizeof(struct combine_diff_path), (l), 1, \ st_mult(sizeof(struct combine_diff_parent), (n))) extern void show_combined_diff(struct combine_diff_path *elem, int num_parent, int dense, struct rev_info *); extern void diff_tree_combined(const unsigned char *sha1, const struct sha1_array *parents, int dense, struct rev_info *rev); extern void diff_tree_combined_merge(const struct commit *commit, int dense, struct rev_info *rev); void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b); extern int diff_can_quit_early(struct diff_options *); extern void diff_addremove(struct diff_options *, int addremove, unsigned mode, const unsigned char *sha1, int sha1_valid, const char *fullpath, unsigned dirty_submodule); extern void diff_change(struct diff_options *, unsigned mode1, unsigned mode2, const unsigned char *sha1, const unsigned char *sha2, int sha1_valid, int sha2_valid, const char *fullpath, unsigned dirty_submodule1, unsigned dirty_submodule2); extern struct diff_filepair *diff_unmerge(struct diff_options *, const char *path); #define DIFF_SETUP_REVERSE 1 #define DIFF_SETUP_USE_CACHE 2 #define DIFF_SETUP_USE_SIZE_CACHE 4 /* * Poor man's alternative to parse-option, to allow both stuck form * (--option=value) and separate form (--option value). */ extern int parse_long_opt(const char *opt, const char **argv, const char **optarg); extern int git_diff_basic_config(const char *var, const char *value, void *cb); extern int git_diff_heuristic_config(const char *var, const char *value, void *cb); extern void init_diff_ui_defaults(void); extern int git_diff_ui_config(const char *var, const char *value, void *cb); extern void diff_setup(struct diff_options *); extern int diff_opt_parse(struct diff_options *, const char **, int, const char *); extern void diff_setup_done(struct diff_options *); #define DIFF_DETECT_RENAME 1 #define DIFF_DETECT_COPY 2 #define DIFF_PICKAXE_ALL 1 #define DIFF_PICKAXE_REGEX 2 #define DIFF_PICKAXE_KIND_S 4 /* traditional plumbing counter */ #define DIFF_PICKAXE_KIND_G 8 /* grep in the patch */ extern void diffcore_std(struct diff_options *); extern void diffcore_fix_diff_index(struct diff_options *); #define COMMON_DIFF_OPTIONS_HELP \ "\ncommon diff options:\n" \ " -z output diff-raw with lines terminated with NUL.\n" \ " -p output patch format.\n" \ " -u synonym for -p.\n" \ " --patch-with-raw\n" \ " output both a patch and the diff-raw format.\n" \ " --stat show diffstat instead of patch.\n" \ " --numstat show numeric diffstat instead of patch.\n" \ " --patch-with-stat\n" \ " output a patch and prepend its diffstat.\n" \ " --name-only show only names of changed files.\n" \ " --name-status show names and status of changed files.\n" \ " --full-index show full object name on index lines.\n" \ " --abbrev= abbreviate object names in diff-tree header and diff-raw.\n" \ " -R swap input file pairs.\n" \ " -B detect complete rewrites.\n" \ " -M detect renames.\n" \ " -C detect copies.\n" \ " --find-copies-harder\n" \ " try unchanged files as candidate for copy detection.\n" \ " -l limit rename attempts up to paths.\n" \ " -O reorder diffs according to the .\n" \ " -S find filepair whose only one side contains the string.\n" \ " --pickaxe-all\n" \ " show all files diff when -S is used and hit is found.\n" \ " -a --text treat all files as text.\n" extern int diff_queue_is_empty(void); extern void diff_flush(struct diff_options*); extern void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc); /* diff-raw status letters */ #define DIFF_STATUS_ADDED 'A' #define DIFF_STATUS_COPIED 'C' #define DIFF_STATUS_DELETED 'D' #define DIFF_STATUS_MODIFIED 'M' #define DIFF_STATUS_RENAMED 'R' #define DIFF_STATUS_TYPE_CHANGED 'T' #define DIFF_STATUS_UNKNOWN 'X' #define DIFF_STATUS_UNMERGED 'U' /* these are not diff-raw status letters proper, but used by * diffcore-filter insn to specify additional restrictions. */ #define DIFF_STATUS_FILTER_AON '*' #define DIFF_STATUS_FILTER_BROKEN 'B' extern const char *diff_unique_abbrev(const unsigned char *, int); /* do not report anything on removed paths */ #define DIFF_SILENT_ON_REMOVED 01 /* report racily-clean paths as modified */ #define DIFF_RACY_IS_MODIFIED 02 extern int run_diff_files(struct rev_info *revs, unsigned int option); extern int run_diff_index(struct rev_info *revs, int cached); extern int do_diff_cache(const unsigned char *, struct diff_options *); extern int diff_flush_patch_id(struct diff_options *, unsigned char *); extern int diff_result_code(struct diff_options *, int); extern void diff_no_index(struct rev_info *, int, const char **); extern int index_differs_from(const char *def, int diff_flags); /* * Fill the contents of the filespec "df", respecting any textconv defined by * its userdiff driver. The "driver" parameter must come from a * previous call to get_textconv(), and therefore should either be NULL or have * textconv enabled. * * Note that the memory ownership of the resulting buffer depends on whether * the driver field is NULL. If it is, then the memory belongs to the filespec * struct. If it is non-NULL, then "outbuf" points to a newly allocated buffer * that should be freed by the caller. */ extern size_t fill_textconv(struct userdiff_driver *driver, struct diff_filespec *df, char **outbuf); /* * Look up the userdiff driver for the given filespec, and return it if * and only if it has textconv enabled (otherwise return NULL). The result * can be passed to fill_textconv(). */ extern struct userdiff_driver *get_textconv(struct diff_filespec *one); extern int parse_rename_score(const char **cp_p); extern long parse_algorithm_value(const char *value); extern int print_stat_summary(FILE *fp, int files, int insertions, int deletions); extern void setup_diff_pager(struct diff_options *); #endif /* DIFF_H */