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Diffstat (limited to 'diff.h')
| -rw-r--r-- | diff.h | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/diff.h b/diff.h new file mode 100644 index 0000000000..a49d865bd9 --- /dev/null +++ b/diff.h @@ -0,0 +1,265 @@ +/* + * Copyright (C) 2005 Junio C Hamano + */ +#ifndef DIFF_H +#define DIFF_H + +#include "tree-walk.h" + +struct rev_info; +struct diff_options; +struct diff_queue_struct; + +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, + const char *fullpath); + +typedef void (*add_remove_fn_t)(struct diff_options *options, + int addremove, unsigned mode, + const unsigned char *sha1, + const char *fullpath); + +typedef void (*diff_format_fn_t)(struct diff_queue_struct *q, + struct diff_options *options, 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_COLOR_DIFF (1 << 8) +#define DIFF_OPT_COLOR_DIFF_WORDS (1 << 9) +#define DIFF_OPT_HAS_CHANGES (1 << 10) +#define DIFF_OPT_QUIET (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_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag) +#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag) +#define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag) + +struct diff_options { + const char *filter; + const char *orderfile; + const char *pickaxe; + const char *single_follow; + const char *a_prefix, *b_prefix; + unsigned flags; + int context; + int break_opt; + int detect_rename; + int skip_stat_unmatch; + int line_termination; + int output_format; + int pickaxe_opts; + int rename_score; + int rename_limit; + int warn_on_too_large_rename; + int dirstat_percent; + int setup; + int abbrev; + const char *prefix; + int prefix_length; + const char *stat_sep; + long xdl_opts; + + int stat_width; + int stat_name_width; + + /* this is set by diffcore for DIFF_FORMAT_PATCH */ + int found_changes; + + FILE *file; + int close_file; + + int nr_paths; + const char **paths; + int *pathlens; + change_fn_t change; + add_remove_fn_t add_remove; + diff_format_fn_t format_callback; + void *format_callback_data; +}; + +enum color_diff { + DIFF_RESET = 0, + DIFF_PLAIN = 1, + DIFF_METAINFO = 2, + DIFF_FRAGINFO = 3, + DIFF_FILE_OLD = 4, + DIFF_FILE_NEW = 5, + DIFF_COMMIT = 6, + DIFF_WHITESPACE = 7, +}; +const char *diff_get_color(int diff_use_color, enum color_diff ix); +#define diff_get_color_opt(o, ix) \ + diff_get_color(DIFF_OPT_TST((o), COLOR_DIFF), ix) + + +extern const char mime_boundary_leader[]; + +extern void diff_tree_setup_paths(const char **paths, struct diff_options *); +extern void diff_tree_release_paths(struct diff_options *); +extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2, + const char *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; + int len; + char *path; + unsigned int mode; + unsigned char sha1[20]; + struct combine_diff_parent { + char status; + unsigned int mode; + unsigned char sha1[20]; + } parent[FLEX_ARRAY]; +}; +#define combine_diff_path_size(n, l) \ + (sizeof(struct combine_diff_path) + \ + sizeof(struct combine_diff_parent) * (n) + (l) + 1) + +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 unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev); + +extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *); + +void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b); + +extern void diff_addremove(struct diff_options *, + int addremove, + unsigned mode, + const unsigned char *sha1, + const char *fullpath); + +extern void diff_change(struct diff_options *, + unsigned mode1, unsigned mode2, + const unsigned char *sha1, + const unsigned char *sha2, + const char *fullpath); + +extern void diff_unmerge(struct diff_options *, + const char *path, + unsigned mode, + const unsigned char *sha1); + +#define DIFF_SETUP_REVERSE 1 +#define DIFF_SETUP_USE_CACHE 2 +#define DIFF_SETUP_USE_SIZE_CACHE 4 + +extern int git_diff_basic_config(const char *var, const char *value, void *cb); +extern int git_diff_ui_config(const char *var, const char *value, void *cb); +extern int diff_use_color_default; +extern void diff_setup(struct diff_options *); +extern int diff_opt_parse(struct diff_options *, const char **, int); +extern int 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 + +extern void diffcore_std(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=<n> 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<n> limit rename attempts up to <n> paths.\n" \ +" -O<file> reorder diffs according to the <file>.\n" \ +" -S<string> 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*); + +/* 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 **, int, const char *); + +#endif /* DIFF_H */ |