495 lines
15 KiB
C
495 lines
15 KiB
C
/*
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* Copyright (C) 2005 Junio C Hamano
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*/
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#ifndef DIFF_H
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#define DIFF_H
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#include "tree-walk.h"
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#include "pathspec.h"
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#include "object.h"
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#include "oidset.h"
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struct combine_diff_path;
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struct commit;
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struct diff_filespec;
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struct diff_options;
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struct diff_queue_struct;
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struct oid_array;
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struct option;
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struct repository;
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struct rev_info;
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struct strbuf;
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struct userdiff_driver;
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typedef int (*pathchange_fn_t)(struct diff_options *options,
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struct combine_diff_path *path);
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typedef void (*change_fn_t)(struct diff_options *options,
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unsigned old_mode, unsigned new_mode,
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const struct object_id *old_oid,
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const struct object_id *new_oid,
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int old_oid_valid, int new_oid_valid,
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const char *fullpath,
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unsigned old_dirty_submodule, unsigned new_dirty_submodule);
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typedef void (*add_remove_fn_t)(struct diff_options *options,
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int addremove, unsigned mode,
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const struct object_id *oid,
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int oid_valid,
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const char *fullpath, unsigned dirty_submodule);
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typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
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struct diff_options *options, void *data);
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typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data);
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#define DIFF_FORMAT_RAW 0x0001
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#define DIFF_FORMAT_DIFFSTAT 0x0002
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#define DIFF_FORMAT_NUMSTAT 0x0004
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#define DIFF_FORMAT_SUMMARY 0x0008
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#define DIFF_FORMAT_PATCH 0x0010
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#define DIFF_FORMAT_SHORTSTAT 0x0020
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#define DIFF_FORMAT_DIRSTAT 0x0040
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/* These override all above */
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#define DIFF_FORMAT_NAME 0x0100
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#define DIFF_FORMAT_NAME_STATUS 0x0200
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#define DIFF_FORMAT_CHECKDIFF 0x0400
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/* Same as output_format = 0 but we know that -s flag was given
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* and we should not give default value to output_format.
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*/
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#define DIFF_FORMAT_NO_OUTPUT 0x0800
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#define DIFF_FORMAT_CALLBACK 0x1000
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#define DIFF_FLAGS_INIT { 0 }
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struct diff_flags {
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unsigned recursive;
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unsigned tree_in_recursive;
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unsigned binary;
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unsigned text;
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unsigned full_index;
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unsigned silent_on_remove;
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unsigned find_copies_harder;
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unsigned follow_renames;
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unsigned rename_empty;
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unsigned has_changes;
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unsigned quick;
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unsigned no_index;
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unsigned allow_external;
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unsigned exit_with_status;
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unsigned reverse_diff;
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unsigned check_failed;
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unsigned relative_name;
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unsigned ignore_submodules;
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unsigned dirstat_cumulative;
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unsigned dirstat_by_file;
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unsigned allow_textconv;
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unsigned textconv_set_via_cmdline;
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unsigned diff_from_contents;
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unsigned dirty_submodules;
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unsigned ignore_untracked_in_submodules;
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unsigned ignore_dirty_submodules;
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unsigned override_submodule_config;
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unsigned dirstat_by_line;
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unsigned funccontext;
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unsigned default_follow_renames;
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unsigned stat_with_summary;
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unsigned suppress_diff_headers;
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unsigned dual_color_diffed_diffs;
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unsigned suppress_hunk_header_line_count;
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};
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static inline void diff_flags_or(struct diff_flags *a,
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const struct diff_flags *b)
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{
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char *tmp_a = (char *)a;
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const char *tmp_b = (const char *)b;
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int i;
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for (i = 0; i < sizeof(struct diff_flags); i++)
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tmp_a[i] |= tmp_b[i];
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}
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#define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag)
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#define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag)
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#define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag)
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#define DIFF_WITH_ALG(opts, flag) (((opts)->xdl_opts & ~XDF_DIFF_ALGORITHM_MASK) | XDF_##flag)
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enum diff_words_type {
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DIFF_WORDS_NONE = 0,
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DIFF_WORDS_PORCELAIN,
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DIFF_WORDS_PLAIN,
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DIFF_WORDS_COLOR
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};
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enum diff_submodule_format {
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DIFF_SUBMODULE_SHORT = 0,
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DIFF_SUBMODULE_LOG,
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DIFF_SUBMODULE_INLINE_DIFF
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};
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struct diff_options {
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const char *orderfile;
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const char *pickaxe;
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const char *single_follow;
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const char *a_prefix, *b_prefix;
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const char *line_prefix;
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size_t line_prefix_length;
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struct diff_flags flags;
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/* diff-filter bits */
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unsigned int filter;
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int use_color;
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int context;
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int interhunkcontext;
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int break_opt;
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int detect_rename;
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int irreversible_delete;
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int skip_stat_unmatch;
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int line_termination;
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int output_format;
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unsigned pickaxe_opts;
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int rename_score;
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int rename_limit;
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int needed_rename_limit;
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int degraded_cc_to_c;
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int show_rename_progress;
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int dirstat_permille;
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int setup;
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int abbrev;
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int ita_invisible_in_index;
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/* white-space error highlighting */
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#define WSEH_NEW (1<<12)
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#define WSEH_CONTEXT (1<<13)
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#define WSEH_OLD (1<<14)
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unsigned ws_error_highlight;
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const char *prefix;
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int prefix_length;
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const char *stat_sep;
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int xdl_opts;
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/* see Documentation/diff-options.txt */
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char **anchors;
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size_t anchors_nr, anchors_alloc;
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int stat_width;
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int stat_name_width;
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int stat_graph_width;
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int stat_count;
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const char *word_regex;
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enum diff_words_type word_diff;
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enum diff_submodule_format submodule_format;
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struct oidset *objfind;
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/* this is set by diffcore for DIFF_FORMAT_PATCH */
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int found_changes;
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/* to support internal diff recursion by --follow hack*/
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int found_follow;
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void (*set_default)(struct diff_options *);
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FILE *file;
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int close_file;
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#define OUTPUT_INDICATOR_NEW 0
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#define OUTPUT_INDICATOR_OLD 1
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#define OUTPUT_INDICATOR_CONTEXT 2
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char output_indicators[3];
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struct pathspec pathspec;
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pathchange_fn_t pathchange;
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change_fn_t change;
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add_remove_fn_t add_remove;
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void *change_fn_data;
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diff_format_fn_t format_callback;
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void *format_callback_data;
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diff_prefix_fn_t output_prefix;
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void *output_prefix_data;
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int diff_path_counter;
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struct emitted_diff_symbols *emitted_symbols;
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enum {
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COLOR_MOVED_NO = 0,
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COLOR_MOVED_PLAIN = 1,
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COLOR_MOVED_BLOCKS = 2,
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COLOR_MOVED_ZEBRA = 3,
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COLOR_MOVED_ZEBRA_DIM = 4,
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} color_moved;
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#define COLOR_MOVED_DEFAULT COLOR_MOVED_ZEBRA
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#define COLOR_MOVED_MIN_ALNUM_COUNT 20
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/* XDF_WHITESPACE_FLAGS regarding block detection are set at 2, 3, 4 */
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#define COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE (1<<5)
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#define COLOR_MOVED_WS_ERROR (1<<0)
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unsigned color_moved_ws_handling;
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struct repository *repo;
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struct option *parseopts;
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};
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unsigned diff_filter_bit(char status);
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void diff_emit_submodule_del(struct diff_options *o, const char *line);
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void diff_emit_submodule_add(struct diff_options *o, const char *line);
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void diff_emit_submodule_untracked(struct diff_options *o, const char *path);
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void diff_emit_submodule_modified(struct diff_options *o, const char *path);
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void diff_emit_submodule_header(struct diff_options *o, const char *header);
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void diff_emit_submodule_error(struct diff_options *o, const char *err);
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void diff_emit_submodule_pipethrough(struct diff_options *o,
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const char *line, int len);
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enum color_diff {
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DIFF_RESET = 0,
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DIFF_CONTEXT = 1,
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DIFF_METAINFO = 2,
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DIFF_FRAGINFO = 3,
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DIFF_FILE_OLD = 4,
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DIFF_FILE_NEW = 5,
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DIFF_COMMIT = 6,
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DIFF_WHITESPACE = 7,
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DIFF_FUNCINFO = 8,
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DIFF_FILE_OLD_MOVED = 9,
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DIFF_FILE_OLD_MOVED_ALT = 10,
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DIFF_FILE_OLD_MOVED_DIM = 11,
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DIFF_FILE_OLD_MOVED_ALT_DIM = 12,
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DIFF_FILE_NEW_MOVED = 13,
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DIFF_FILE_NEW_MOVED_ALT = 14,
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DIFF_FILE_NEW_MOVED_DIM = 15,
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DIFF_FILE_NEW_MOVED_ALT_DIM = 16,
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DIFF_CONTEXT_DIM = 17,
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DIFF_FILE_OLD_DIM = 18,
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DIFF_FILE_NEW_DIM = 19,
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DIFF_CONTEXT_BOLD = 20,
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DIFF_FILE_OLD_BOLD = 21,
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DIFF_FILE_NEW_BOLD = 22,
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};
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const char *diff_get_color(int diff_use_color, enum color_diff ix);
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#define diff_get_color_opt(o, ix) \
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diff_get_color((o)->use_color, ix)
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const char *diff_line_prefix(struct diff_options *);
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extern const char mime_boundary_leader[];
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struct combine_diff_path *diff_tree_paths(
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struct combine_diff_path *p, const struct object_id *oid,
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const struct object_id **parents_oid, int nparent,
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struct strbuf *base, struct diff_options *opt);
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int diff_tree_oid(const struct object_id *old_oid,
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const struct object_id *new_oid,
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const char *base, struct diff_options *opt);
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int diff_root_tree_oid(const struct object_id *new_oid, const char *base,
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struct diff_options *opt);
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struct combine_diff_path {
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struct combine_diff_path *next;
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char *path;
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unsigned int mode;
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struct object_id oid;
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struct combine_diff_parent {
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char status;
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unsigned int mode;
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struct object_id oid;
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struct strbuf path;
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} parent[FLEX_ARRAY];
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};
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#define combine_diff_path_size(n, l) \
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st_add4(sizeof(struct combine_diff_path), (l), 1, \
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st_mult(sizeof(struct combine_diff_parent), (n)))
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void show_combined_diff(struct combine_diff_path *elem, int num_parent,
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int dense, struct rev_info *);
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void diff_tree_combined(const struct object_id *oid, const struct oid_array *parents, int dense, struct rev_info *rev);
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void diff_tree_combined_merge(const struct commit *commit, int dense, struct rev_info *rev);
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void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b);
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int diff_can_quit_early(struct diff_options *);
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void diff_addremove(struct diff_options *,
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int addremove,
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unsigned mode,
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const struct object_id *oid,
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int oid_valid,
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const char *fullpath, unsigned dirty_submodule);
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void diff_change(struct diff_options *,
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unsigned mode1, unsigned mode2,
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const struct object_id *old_oid,
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const struct object_id *new_oid,
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int old_oid_valid, int new_oid_valid,
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const char *fullpath,
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unsigned dirty_submodule1, unsigned dirty_submodule2);
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struct diff_filepair *diff_unmerge(struct diff_options *, const char *path);
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#define DIFF_SETUP_REVERSE 1
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#define DIFF_SETUP_USE_SIZE_CACHE 4
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/*
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* Poor man's alternative to parse-option, to allow both stuck form
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* (--option=value) and separate form (--option value).
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*/
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int parse_long_opt(const char *opt, const char **argv,
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const char **optarg);
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int git_diff_basic_config(const char *var, const char *value, void *cb);
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int git_diff_heuristic_config(const char *var, const char *value, void *cb);
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void init_diff_ui_defaults(void);
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int git_diff_ui_config(const char *var, const char *value, void *cb);
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#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
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#define diff_setup(diffopts) repo_diff_setup(the_repository, diffopts)
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#endif
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void repo_diff_setup(struct repository *, struct diff_options *);
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int diff_opt_parse(struct diff_options *, const char **, int, const char *);
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void diff_setup_done(struct diff_options *);
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int git_config_rename(const char *var, const char *value);
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#define DIFF_DETECT_RENAME 1
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#define DIFF_DETECT_COPY 2
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#define DIFF_PICKAXE_ALL 1
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#define DIFF_PICKAXE_REGEX 2
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#define DIFF_PICKAXE_KIND_S 4 /* traditional plumbing counter */
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#define DIFF_PICKAXE_KIND_G 8 /* grep in the patch */
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#define DIFF_PICKAXE_KIND_OBJFIND 16 /* specific object IDs */
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#define DIFF_PICKAXE_KINDS_MASK (DIFF_PICKAXE_KIND_S | \
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DIFF_PICKAXE_KIND_G | \
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DIFF_PICKAXE_KIND_OBJFIND)
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#define DIFF_PICKAXE_IGNORE_CASE 32
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void diffcore_std(struct diff_options *);
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void diffcore_fix_diff_index(void);
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#define COMMON_DIFF_OPTIONS_HELP \
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"\ncommon diff options:\n" \
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" -z output diff-raw with lines terminated with NUL.\n" \
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" -p output patch format.\n" \
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" -u synonym for -p.\n" \
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" --patch-with-raw\n" \
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" output both a patch and the diff-raw format.\n" \
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" --stat show diffstat instead of patch.\n" \
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" --numstat show numeric diffstat instead of patch.\n" \
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" --patch-with-stat\n" \
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" output a patch and prepend its diffstat.\n" \
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" --name-only show only names of changed files.\n" \
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" --name-status show names and status of changed files.\n" \
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" --full-index show full object name on index lines.\n" \
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" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
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" -R swap input file pairs.\n" \
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" -B detect complete rewrites.\n" \
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" -M detect renames.\n" \
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" -C detect copies.\n" \
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" --find-copies-harder\n" \
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" try unchanged files as candidate for copy detection.\n" \
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" -l<n> limit rename attempts up to <n> paths.\n" \
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" -O<file> reorder diffs according to the <file>.\n" \
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" -S<string> find filepair whose only one side contains the string.\n" \
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" --pickaxe-all\n" \
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" show all files diff when -S is used and hit is found.\n" \
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" -a --text treat all files as text.\n"
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int diff_queue_is_empty(void);
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void diff_flush(struct diff_options*);
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void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc);
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/* diff-raw status letters */
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#define DIFF_STATUS_ADDED 'A'
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#define DIFF_STATUS_COPIED 'C'
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#define DIFF_STATUS_DELETED 'D'
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#define DIFF_STATUS_MODIFIED 'M'
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#define DIFF_STATUS_RENAMED 'R'
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#define DIFF_STATUS_TYPE_CHANGED 'T'
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#define DIFF_STATUS_UNKNOWN 'X'
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#define DIFF_STATUS_UNMERGED 'U'
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/* these are not diff-raw status letters proper, but used by
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* diffcore-filter insn to specify additional restrictions.
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*/
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#define DIFF_STATUS_FILTER_AON '*'
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#define DIFF_STATUS_FILTER_BROKEN 'B'
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/*
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* This is different from find_unique_abbrev() in that
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* it stuffs the result with dots for alignment.
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*/
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const char *diff_aligned_abbrev(const struct object_id *sha1, int);
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/* do not report anything on removed paths */
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#define DIFF_SILENT_ON_REMOVED 01
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/* report racily-clean paths as modified */
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#define DIFF_RACY_IS_MODIFIED 02
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int run_diff_files(struct rev_info *revs, unsigned int option);
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int run_diff_index(struct rev_info *revs, int cached);
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int do_diff_cache(const struct object_id *, struct diff_options *);
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int diff_flush_patch_id(struct diff_options *, struct object_id *, int, int);
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void flush_one_hunk(struct object_id *, git_SHA_CTX *);
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int diff_result_code(struct diff_options *, int);
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int diff_no_index(struct rev_info *,
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int implicit_no_index, int, const char **);
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int index_differs_from(struct repository *r, const char *def,
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const struct diff_flags *flags,
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int ita_invisible_in_index);
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/*
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* Fill the contents of the filespec "df", respecting any textconv defined by
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* its userdiff driver. The "driver" parameter must come from a
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* previous call to get_textconv(), and therefore should either be NULL or have
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* textconv enabled.
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*
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* Note that the memory ownership of the resulting buffer depends on whether
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* the driver field is NULL. If it is, then the memory belongs to the filespec
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* struct. If it is non-NULL, then "outbuf" points to a newly allocated buffer
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* that should be freed by the caller.
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*/
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size_t fill_textconv(struct repository *r,
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struct userdiff_driver *driver,
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struct diff_filespec *df,
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char **outbuf);
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/*
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* Look up the userdiff driver for the given filespec, and return it if
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* and only if it has textconv enabled (otherwise return NULL). The result
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* can be passed to fill_textconv().
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*/
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struct userdiff_driver *get_textconv(struct repository *r,
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struct diff_filespec *one);
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/*
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* Prepare diff_filespec and convert it using diff textconv API
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* if the textconv driver exists.
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* Return 1 if the conversion succeeds, 0 otherwise.
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*/
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int textconv_object(struct repository *repo,
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const char *path,
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unsigned mode,
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const struct object_id *oid, int oid_valid,
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char **buf, unsigned long *buf_size);
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int parse_rename_score(const char **cp_p);
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long parse_algorithm_value(const char *value);
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void print_stat_summary(FILE *fp, int files,
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int insertions, int deletions);
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void setup_diff_pager(struct diff_options *);
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#endif /* DIFF_H */
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