| /* |
| * Copyright (C) 2005 Junio C Hamano |
| */ |
| #ifndef DIFF_H |
| #define DIFF_H |
| |
| #include "tree-walk.h" |
| #include "pathspec.h" |
| #include "object.h" |
| #include "oidset.h" |
| |
| /** |
| * The diff API is for programs that compare two sets of files (e.g. two trees, |
| * one tree and the index) and present the found difference in various ways. |
| * The calling program is responsible for feeding the API pairs of files, one |
| * from the "old" set and the corresponding one from "new" set, that are |
| * different. |
| * The library called through this API is called diffcore, and is responsible |
| * for two things. |
| * |
| * - finding total rewrites (`-B`), renames (`-M`) and copies (`-C`), and |
| * changes that touch a string (`-S`), as specified by the caller. |
| * |
| * - outputting the differences in various formats, as specified by the caller. |
| * |
| * Calling sequence |
| * ---------------- |
| * |
| * - Prepare `struct diff_options` to record the set of diff options, and then |
| * call `repo_diff_setup()` to initialize this structure. This sets up the |
| * vanilla default. |
| * |
| * - Fill in the options structure to specify desired output format, rename |
| * detection, etc. `diff_opt_parse()` can be used to parse options given |
| * from the command line in a way consistent with existing git-diff family |
| * of programs. |
| * |
| * - Call `diff_setup_done()`; this inspects the options set up so far for |
| * internal consistency and make necessary tweaking to it (e.g. if textual |
| * patch output was asked, recursive behaviour is turned on); the callback |
| * set_default in diff_options can be used to tweak this more. |
| * |
| * - As you find different pairs of files, call `diff_change()` to feed |
| * modified files, `diff_addremove()` to feed created or deleted files, or |
| * `diff_unmerge()` to feed a file whose state is 'unmerged' to the API. |
| * These are thin wrappers to a lower-level `diff_queue()` function that is |
| * flexible enough to record any of these kinds of changes. |
| * |
| * - Once you finish feeding the pairs of files, call `diffcore_std()`. |
| * This will tell the diffcore library to go ahead and do its work. |
| * |
| * - Calling `diff_flush()` will produce the output, it will call |
| * `diff_free()` to free any resources, e.g. those allocated in |
| * `diff_opt_parse()`. |
| * |
| * - Set `.no_free = 1` before calling `diff_flush()` to defer the |
| * freeing of allocated memory in diff_options. This is useful when |
| * `diff_flush()` is being called in a loop, rather than as a |
| * one-off. When setting `.no_free = 1` you must ensure that |
| * `diff_free()` is called at the end, either by flipping the flag |
| * before the last `diff_flush()` call, or by flipping it before |
| * calling `diff_free()` yourself. |
| */ |
| |
| struct combine_diff_path; |
| struct commit; |
| struct diff_filespec; |
| struct diff_options; |
| struct diff_queue_struct; |
| struct oid_array; |
| struct option; |
| struct repository; |
| struct rev_info; |
| struct strbuf; |
| struct userdiff_driver; |
| |
| 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 struct object_id *old_oid, |
| const struct object_id *new_oid, |
| int old_oid_valid, int new_oid_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 struct object_id *oid, |
| int oid_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_FLAGS_INIT { 0 } |
| struct diff_flags { |
| |
| /** |
| * Tells if tree traversal done by tree-diff should recursively descend |
| * into a tree object pair that are different in preimage and postimage set. |
| */ |
| unsigned recursive; |
| unsigned tree_in_recursive; |
| |
| /* Affects the way how a file that is seemingly binary is treated. */ |
| unsigned binary; |
| unsigned text; |
| |
| /** |
| * Tells the patch output format not to use abbreviated object names on the |
| * "index" lines. |
| */ |
| unsigned full_index; |
| |
| /* Affects if diff-files shows removed files. */ |
| unsigned silent_on_remove; |
| |
| /** |
| * Tells the diffcore library that the caller is feeding unchanged |
| * filepairs to allow copies from unmodified files be detected. |
| */ |
| unsigned find_copies_harder; |
| |
| unsigned follow_renames; |
| unsigned rename_empty; |
| |
| /* Internal; used for optimization to see if there is any change. */ |
| unsigned has_changes; |
| |
| unsigned quick; |
| |
| /** |
| * Tells diff-files that the input is not tracked files but files in random |
| * locations on the filesystem. |
| */ |
| unsigned no_index; |
| |
| /** |
| * Tells output routine that it is Ok to call user specified patch output |
| * routine. Plumbing disables this to ensure stable output. |
| */ |
| unsigned allow_external; |
| |
| /** |
| * For communication between the calling program and the options parser; |
| * tell the calling program to signal the presence of difference using |
| * program exit code. |
| */ |
| unsigned exit_with_status; |
| |
| /** |
| * Tells the library that the calling program is feeding the filepairs |
| * reversed; `one` is two, and `two` is one. |
| */ |
| unsigned reverse_diff; |
| |
| unsigned check_failed; |
| unsigned relative_name; |
| unsigned ignore_submodules; |
| unsigned dirstat_cumulative; |
| unsigned dirstat_by_file; |
| unsigned allow_textconv; |
| unsigned textconv_set_via_cmdline; |
| unsigned diff_from_contents; |
| unsigned dirty_submodules; |
| unsigned ignore_untracked_in_submodules; |
| unsigned ignore_submodule_set; |
| unsigned ignore_dirty_submodules; |
| unsigned override_submodule_config; |
| unsigned dirstat_by_line; |
| unsigned funccontext; |
| unsigned default_follow_renames; |
| unsigned stat_with_summary; |
| unsigned suppress_diff_headers; |
| unsigned dual_color_diffed_diffs; |
| unsigned suppress_hunk_header_line_count; |
| }; |
| |
| static inline void diff_flags_or(struct diff_flags *a, |
| const struct diff_flags *b) |
| { |
| char *tmp_a = (char *)a; |
| const char *tmp_b = (const char *)b; |
| int i; |
| |
| for (i = 0; i < sizeof(struct diff_flags); i++) |
| tmp_a[i] |= tmp_b[i]; |
| } |
| |
| #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 |
| }; |
| |
| enum diff_submodule_format { |
| DIFF_SUBMODULE_SHORT = 0, |
| DIFF_SUBMODULE_LOG, |
| DIFF_SUBMODULE_INLINE_DIFF |
| }; |
| |
| /** |
| * the set of options the calling program wants to affect the operation of |
| * diffcore library with. |
| */ |
| struct diff_options { |
| const char *orderfile; |
| |
| /* |
| * "--rotate-to=<file>" would start showing at <file> and when |
| * the output reaches the end, wrap around by default. |
| * Setting skip_instead_of_rotate to true stops the output at the |
| * end, effectively discarding the earlier part of the output |
| * before <file>'s diff (this is used to implement the |
| * "--skip-to=<file>" option). |
| * |
| * When rotate_to_strict is set, it is an error if there is no |
| * <file> in the diff. Otherwise, the output starts at the |
| * path that is the same as, or first path that sorts after, |
| * <file>. Because it is unreasonable to require the exact |
| * match for "git log -p --rotate-to=<file>" (i.e. not all |
| * commit would touch that single <file>), "git log" sets it |
| * to false. "git diff" sets it to true to detect an error |
| * in the command line option. |
| */ |
| const char *rotate_to; |
| int skip_instead_of_rotate; |
| int rotate_to_strict; |
| |
| /** |
| * A constant string (can and typically does contain newlines to look for |
| * a block of text, not just a single line) to filter out the filepairs |
| * that do not change the number of strings contained in its preimage and |
| * postimage of the diff_queue. |
| */ |
| const char *pickaxe; |
| unsigned pickaxe_opts; |
| |
| /* -I<regex> */ |
| regex_t **ignore_regex; |
| size_t ignore_regex_nr, ignore_regex_alloc; |
| |
| const char *single_follow; |
| const char *a_prefix, *b_prefix; |
| const char *line_prefix; |
| size_t line_prefix_length; |
| |
| /** |
| * collection of boolean options that affects the operation, but some do |
| * not have anything to do with the diffcore library. |
| */ |
| struct diff_flags flags; |
| |
| /* diff-filter bits */ |
| unsigned int filter, filter_not; |
| |
| int use_color; |
| |
| /* Number of context lines to generate in patch output. */ |
| int context; |
| |
| int interhunkcontext; |
| |
| /* Affects the way detection logic for complete rewrites, renames and |
| * copies. |
| */ |
| int break_opt; |
| int detect_rename; |
| |
| int irreversible_delete; |
| int skip_stat_unmatch; |
| int line_termination; |
| |
| /* The output format used when `diff_flush()` is run. */ |
| int output_format; |
| |
| /* Affects the way detection logic for complete rewrites, renames and |
| * copies. |
| */ |
| int rename_score; |
| int rename_limit; |
| |
| int needed_rename_limit; |
| int degraded_cc_to_c; |
| int show_rename_progress; |
| int dirstat_permille; |
| int setup; |
| |
| /* Number of hexdigits to abbreviate raw format output to. */ |
| int abbrev; |
| |
| /* If non-zero, then stop computing after this many changes. */ |
| int max_changes; |
| |
| int ita_invisible_in_index; |
| /* white-space error highlighting */ |
| #define WSEH_NEW (1<<12) |
| #define WSEH_CONTEXT (1<<13) |
| #define WSEH_OLD (1<<14) |
| unsigned ws_error_highlight; |
| const char *prefix; |
| int prefix_length; |
| const char *stat_sep; |
| int xdl_opts; |
| int ignore_driver_algorithm; |
| |
| /* see Documentation/diff-options.txt */ |
| char **anchors; |
| size_t anchors_nr, anchors_alloc; |
| |
| int stat_width; |
| int stat_name_width; |
| int stat_graph_width; |
| int stat_count; |
| const char *word_regex; |
| enum diff_words_type word_diff; |
| enum diff_submodule_format submodule_format; |
| |
| struct oidset *objfind; |
| |
| /* this is set by diffcore for DIFF_FORMAT_PATCH */ |
| int found_changes; |
| |
| /* to support internal diff recursion by --follow hack*/ |
| int found_follow; |
| |
| /* Callback which allows tweaking the options in diff_setup_done(). */ |
| void (*set_default)(struct diff_options *); |
| |
| FILE *file; |
| int close_file; |
| |
| #define OUTPUT_INDICATOR_NEW 0 |
| #define OUTPUT_INDICATOR_OLD 1 |
| #define OUTPUT_INDICATOR_CONTEXT 2 |
| char output_indicators[3]; |
| |
| struct pathspec pathspec; |
| pathchange_fn_t pathchange; |
| change_fn_t change; |
| add_remove_fn_t add_remove; |
| void *change_fn_data; |
| diff_format_fn_t format_callback; |
| void *format_callback_data; |
| diff_prefix_fn_t output_prefix; |
| void *output_prefix_data; |
| |
| int diff_path_counter; |
| |
| struct emitted_diff_symbols *emitted_symbols; |
| enum { |
| COLOR_MOVED_NO = 0, |
| COLOR_MOVED_PLAIN = 1, |
| COLOR_MOVED_BLOCKS = 2, |
| COLOR_MOVED_ZEBRA = 3, |
| COLOR_MOVED_ZEBRA_DIM = 4, |
| } color_moved; |
| #define COLOR_MOVED_DEFAULT COLOR_MOVED_ZEBRA |
| #define COLOR_MOVED_MIN_ALNUM_COUNT 20 |
| |
| /* XDF_WHITESPACE_FLAGS regarding block detection are set at 2, 3, 4 */ |
| #define COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE (1<<5) |
| #define COLOR_MOVED_WS_ERROR (1<<0) |
| unsigned color_moved_ws_handling; |
| |
| struct repository *repo; |
| struct strmap *additional_path_headers; |
| |
| int no_free; |
| }; |
| |
| unsigned diff_filter_bit(char status); |
| |
| void diff_emit_submodule_del(struct diff_options *o, const char *line); |
| void diff_emit_submodule_add(struct diff_options *o, const char *line); |
| void diff_emit_submodule_untracked(struct diff_options *o, const char *path); |
| void diff_emit_submodule_modified(struct diff_options *o, const char *path); |
| void diff_emit_submodule_header(struct diff_options *o, const char *header); |
| void diff_emit_submodule_error(struct diff_options *o, const char *err); |
| void diff_emit_submodule_pipethrough(struct diff_options *o, |
| const char *line, int len); |
| |
| struct diffstat_t { |
| int nr; |
| int alloc; |
| struct diffstat_file { |
| char *from_name; |
| char *name; |
| char *print_name; |
| const char *comments; |
| unsigned is_unmerged:1; |
| unsigned is_binary:1; |
| unsigned is_renamed:1; |
| unsigned is_interesting:1; |
| uintmax_t added, deleted; |
| } **files; |
| }; |
| |
| 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, |
| DIFF_FILE_OLD_MOVED = 9, |
| DIFF_FILE_OLD_MOVED_ALT = 10, |
| DIFF_FILE_OLD_MOVED_DIM = 11, |
| DIFF_FILE_OLD_MOVED_ALT_DIM = 12, |
| DIFF_FILE_NEW_MOVED = 13, |
| DIFF_FILE_NEW_MOVED_ALT = 14, |
| DIFF_FILE_NEW_MOVED_DIM = 15, |
| DIFF_FILE_NEW_MOVED_ALT_DIM = 16, |
| DIFF_CONTEXT_DIM = 17, |
| DIFF_FILE_OLD_DIM = 18, |
| DIFF_FILE_NEW_DIM = 19, |
| DIFF_CONTEXT_BOLD = 20, |
| DIFF_FILE_OLD_BOLD = 21, |
| DIFF_FILE_NEW_BOLD = 22, |
| }; |
| |
| 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[]; |
| |
| struct combine_diff_path *diff_tree_paths( |
| struct combine_diff_path *p, const struct object_id *oid, |
| const struct object_id **parents_oid, int nparent, |
| struct strbuf *base, struct diff_options *opt); |
| void diff_tree_oid(const struct object_id *old_oid, |
| const struct object_id *new_oid, |
| const char *base, struct diff_options *opt); |
| void diff_root_tree_oid(const struct object_id *new_oid, 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; |
| struct strbuf path; |
| } 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))) |
| |
| void show_combined_diff(struct combine_diff_path *elem, int num_parent, |
| struct rev_info *); |
| |
| void diff_tree_combined(const struct object_id *oid, const struct oid_array *parents, struct rev_info *rev); |
| |
| void diff_tree_combined_merge(const struct commit *commit, struct rev_info *rev); |
| |
| void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b); |
| |
| int diff_can_quit_early(struct diff_options *); |
| |
| void diff_addremove(struct diff_options *, |
| int addremove, |
| unsigned mode, |
| const struct object_id *oid, |
| int oid_valid, |
| const char *fullpath, unsigned dirty_submodule); |
| |
| void diff_change(struct diff_options *, |
| unsigned mode1, unsigned mode2, |
| const struct object_id *old_oid, |
| const struct object_id *new_oid, |
| int old_oid_valid, int new_oid_valid, |
| const char *fullpath, |
| unsigned dirty_submodule1, unsigned dirty_submodule2); |
| |
| struct diff_filepair *diff_unmerge(struct diff_options *, const char *path); |
| |
| void compute_diffstat(struct diff_options *options, struct diffstat_t *diffstat, |
| struct diff_queue_struct *q); |
| void free_diffstat_info(struct diffstat_t *diffstat); |
| |
| #define DIFF_SETUP_REVERSE 1 |
| #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). |
| */ |
| int parse_long_opt(const char *opt, const char **argv, |
| const char **optarg); |
| |
| int git_diff_basic_config(const char *var, const char *value, void *cb); |
| int git_diff_heuristic_config(const char *var, const char *value, void *cb); |
| void init_diff_ui_defaults(void); |
| int git_diff_ui_config(const char *var, const char *value, void *cb); |
| #ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS |
| #define diff_setup(diffopts) repo_diff_setup(the_repository, diffopts) |
| #endif |
| void repo_diff_setup(struct repository *, struct diff_options *); |
| struct option *add_diff_options(const struct option *, struct diff_options *); |
| int diff_opt_parse(struct diff_options *, const char **, int, const char *); |
| void diff_setup_done(struct diff_options *); |
| int git_config_rename(const char *var, const char *value); |
| |
| #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 */ |
| #define DIFF_PICKAXE_KIND_OBJFIND 16 /* specific object IDs */ |
| |
| #define DIFF_PICKAXE_KINDS_MASK (DIFF_PICKAXE_KIND_S | \ |
| DIFF_PICKAXE_KIND_G | \ |
| DIFF_PICKAXE_KIND_OBJFIND) |
| #define DIFF_PICKAXE_KINDS_G_REGEX_MASK (DIFF_PICKAXE_KIND_G | \ |
| DIFF_PICKAXE_REGEX) |
| #define DIFF_PICKAXE_KINDS_ALL_OBJFIND_MASK (DIFF_PICKAXE_ALL | \ |
| DIFF_PICKAXE_KIND_OBJFIND) |
| |
| #define DIFF_PICKAXE_IGNORE_CASE 32 |
| |
| void diffcore_std(struct diff_options *); |
| void diffcore_fix_diff_index(void); |
| |
| #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" |
| |
| int diff_queue_is_empty(struct diff_options *o); |
| void diff_flush(struct diff_options*); |
| void diff_free(struct diff_options*); |
| 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' |
| |
| /* |
| * This is different from find_unique_abbrev() in that |
| * it stuffs the result with dots for alignment. |
| */ |
| const char *diff_aligned_abbrev(const struct object_id *sha1, int); |
| |
| void diff_get_merge_base(const struct rev_info *revs, struct object_id *mb); |
| |
| /* 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 |
| int run_diff_files(struct rev_info *revs, unsigned int option); |
| |
| #define DIFF_INDEX_CACHED 01 |
| #define DIFF_INDEX_MERGE_BASE 02 |
| int run_diff_index(struct rev_info *revs, unsigned int option); |
| |
| int do_diff_cache(const struct object_id *, struct diff_options *); |
| int diff_flush_patch_id(struct diff_options *, struct object_id *, int); |
| void flush_one_hunk(struct object_id *result, git_hash_ctx *ctx); |
| |
| int diff_result_code(struct diff_options *, int); |
| |
| int diff_no_index(struct rev_info *, |
| int implicit_no_index, int, const char **); |
| |
| int index_differs_from(struct repository *r, const char *def, |
| const struct diff_flags *flags, |
| int ita_invisible_in_index); |
| |
| /* |
| * Emit an interdiff of two object ID's to 'diff_options.file' optionally |
| * indented by 'indent' spaces. |
| */ |
| void show_interdiff(const struct object_id *, const struct object_id *, |
| int indent, struct diff_options *); |
| |
| /* |
| * 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. |
| */ |
| size_t fill_textconv(struct repository *r, |
| 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(). |
| */ |
| struct userdiff_driver *get_textconv(struct repository *r, |
| struct diff_filespec *one); |
| |
| /* |
| * Prepare diff_filespec and convert it using diff textconv API |
| * if the textconv driver exists. |
| * Return 1 if the conversion succeeds, 0 otherwise. |
| */ |
| int textconv_object(struct repository *repo, |
| const char *path, |
| unsigned mode, |
| const struct object_id *oid, int oid_valid, |
| char **buf, unsigned long *buf_size); |
| |
| int parse_rename_score(const char **cp_p); |
| |
| long parse_algorithm_value(const char *value); |
| |
| void print_stat_summary(FILE *fp, int files, |
| int insertions, int deletions); |
| void setup_diff_pager(struct diff_options *); |
| |
| #endif /* DIFF_H */ |