grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE1
   5 #include <pcre.h>
   6 #ifndef PCRE_NO_UTF8_CHECK
   7 #define PCRE_NO_UTF8_CHECK 0
   8 #endif
   9 #ifdef PCRE_CONFIG_JIT
  10 #if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
  11 #ifndef NO_LIBPCRE1_JIT
  12 #define GIT_PCRE1_USE_JIT
  13 #define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
  14 #endif
  15 #endif
  16 #endif
  17 #ifndef GIT_PCRE_STUDY_JIT_COMPILE
  18 #define GIT_PCRE_STUDY_JIT_COMPILE 0
  19 #endif
  20 #if PCRE_MAJOR <= 8 && PCRE_MINOR < 20
  21 typedef int pcre_jit_stack;
  22 #endif
  23 #else
  24 typedef int pcre;
  25 typedef int pcre_extra;
  26 typedef int pcre_jit_stack;
  27 #endif
  28 #ifdef USE_LIBPCRE2
  29 #define PCRE2_CODE_UNIT_WIDTH 8
  30 #include <pcre2.h>
  31 #else
  32 typedef int pcre2_code;
  33 typedef int pcre2_match_data;
  34 typedef int pcre2_compile_context;
  35 typedef int pcre2_match_context;
  36 typedef int pcre2_jit_stack;
  37 #endif
  38 #include "kwset.h"
  39 #include "thread-utils.h"
  40 #include "userdiff.h"
  41
  42 struct repository;
  43
  44 enum grep_pat_token {
  45         GREP_PATTERN,
  46         GREP_PATTERN_HEAD,
  47         GREP_PATTERN_BODY,
  48         GREP_AND,
  49         GREP_OPEN_PAREN,
  50         GREP_CLOSE_PAREN,
  51         GREP_NOT,
  52         GREP_OR
  53 };
  54
  55 enum grep_context {
  56         GREP_CONTEXT_HEAD,
  57         GREP_CONTEXT_BODY
  58 };
  59
  60 enum grep_header_field {
  61         GREP_HEADER_FIELD_MIN = 0,
  62         GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  63         GREP_HEADER_COMMITTER,
  64         GREP_HEADER_REFLOG,
  65
  66         /* Must be at the end of the enum */
  67         GREP_HEADER_FIELD_MAX
  68 };
  69
  70 enum grep_color {
  71         GREP_COLOR_CONTEXT,
  72         GREP_COLOR_FILENAME,
  73         GREP_COLOR_FUNCTION,
  74         GREP_COLOR_LINENO,
  75         GREP_COLOR_COLUMNNO,
  76         GREP_COLOR_MATCH_CONTEXT,
  77         GREP_COLOR_MATCH_SELECTED,
  78         GREP_COLOR_SELECTED,
  79         GREP_COLOR_SEP,
  80         NR_GREP_COLORS
  81 };
  82
  83 struct grep_pat {
  84         struct grep_pat *next;
  85         const char *origin;
  86         int no;
  87         enum grep_pat_token token;
  88         char *pattern;
  89         size_t patternlen;
  90         enum grep_header_field field;
  91         regex_t regexp;
  92         pcre *pcre1_regexp;
  93         pcre_extra *pcre1_extra_info;
  94         pcre_jit_stack *pcre1_jit_stack;
  95         const unsigned char *pcre1_tables;
  96         int pcre1_jit_on;
  97         pcre2_code *pcre2_pattern;
  98         pcre2_match_data *pcre2_match_data;
  99         pcre2_compile_context *pcre2_compile_context;
 100         pcre2_match_context *pcre2_match_context;
 101         pcre2_jit_stack *pcre2_jit_stack;
 102         uint32_t pcre2_jit_on;
 103         kwset_t kws;
 104         unsigned fixed:1;
 105         unsigned ignore_case:1;
 106         unsigned word_regexp:1;
 107 };
 108
 109 enum grep_expr_node {
 110         GREP_NODE_ATOM,
 111         GREP_NODE_NOT,
 112         GREP_NODE_AND,
 113         GREP_NODE_TRUE,
 114         GREP_NODE_OR
 115 };
 116
 117 enum grep_pattern_type {
 118         GREP_PATTERN_TYPE_UNSPECIFIED = 0,
 119         GREP_PATTERN_TYPE_BRE,
 120         GREP_PATTERN_TYPE_ERE,
 121         GREP_PATTERN_TYPE_FIXED,
 122         GREP_PATTERN_TYPE_PCRE
 123 };
 124
 125 struct grep_expr {
 126         enum grep_expr_node node;
 127         unsigned hit;
 128         union {
 129                 struct grep_pat *atom;
 130                 struct grep_expr *unary;
 131                 struct {
 132                         struct grep_expr *left;
 133                         struct grep_expr *right;
 134                 } binary;
 135         } u;
 136 };
 137
 138 struct grep_opt {
 139         struct grep_pat *pattern_list;
 140         struct grep_pat **pattern_tail;
 141         struct grep_pat *header_list;
 142         struct grep_pat **header_tail;
 143         struct grep_expr *pattern_expression;
 144         struct repository *repo;
 145         const char *prefix;
 146         int prefix_length;
 147         regex_t regexp;
 148         int linenum;
 149         int columnnum;
 150         int invert;
 151         int ignore_case;
 152         int status_only;
 153         int name_only;
 154         int unmatch_name_only;
 155         int count;
 156         int word_regexp;
 157         int fixed;
 158         int all_match;
 159         int debug;
 160 #define GREP_BINARY_DEFAULT     0
 161 #define GREP_BINARY_NOMATCH     1
 162 #define GREP_BINARY_TEXT        2
 163         int binary;
 164         int allow_textconv;
 165         int extended;
 166         int use_reflog_filter;
 167         int pcre1;
 168         int pcre2;
 169         int relative;
 170         int pathname;
 171         int null_following_name;
 172         int only_matching;
 173         int color;
 174         int max_depth;
 175         int funcname;
 176         int funcbody;
 177         int extended_regexp_option;
 178         int pattern_type_option;
 179         char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 180         unsigned pre_context;
 181         unsigned post_context;
 182         unsigned last_shown;
 183         int show_hunk_mark;
 184         int file_break;
 185         int heading;
 186         void *priv;
 187
 188         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 189         void *output_priv;
 190 };
 191
 192 void init_grep_defaults(struct repository *);
 193 int grep_config(const char *var, const char *value, void *);
 194 void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
 195 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 196
 197 void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 198 void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 199 void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 200 void compile_grep_patterns(struct grep_opt *opt);
 201 void free_grep_patterns(struct grep_opt *opt);
 202 int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 203
 204 struct grep_source {
 205         char *name;
 206
 207         enum grep_source_type {
 208                 GREP_SOURCE_OID,
 209                 GREP_SOURCE_FILE,
 210                 GREP_SOURCE_BUF,
 211         } type;
 212         void *identifier;
 213
 214         char *buf;
 215         unsigned long size;
 216
 217         char *path; /* for attribute lookups */
 218         struct userdiff_driver *driver;
 219 };
 220
 221 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 222                       const char *name, const char *path,
 223                       const void *identifier);
 224 void grep_source_clear_data(struct grep_source *gs);
 225 void grep_source_clear(struct grep_source *gs);
 226 void grep_source_load_driver(struct grep_source *gs,
 227                              struct index_state *istate);
 228
 229
 230 int grep_source(struct grep_opt *opt, struct grep_source *gs);
 231
 232 struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 233 int grep_threads_ok(const struct grep_opt *opt);
 234
 235 /*
 236  * Mutex used around access to the attributes machinery if
 237  * opt->use_threads.  Must be initialized/destroyed by callers!
 238  */
 239 extern int grep_use_locks;
 240 extern pthread_mutex_t grep_attr_mutex;
 241 extern pthread_mutex_t grep_read_mutex;
 242
 243 static inline void grep_read_lock(void)
 244 {
 245         if (grep_use_locks)
 246                 pthread_mutex_lock(&grep_read_mutex);
 247 }
 248
 249 static inline void grep_read_unlock(void)
 250 {
 251         if (grep_use_locks)
 252                 pthread_mutex_unlock(&grep_read_mutex);
 253 }
 254
 255 #endif